diff options
author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/soc/blackfin | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/sound/soc/blackfin')
23 files changed, 5392 insertions, 0 deletions
diff --git a/kernel/sound/soc/blackfin/Kconfig b/kernel/sound/soc/blackfin/Kconfig new file mode 100644 index 000000000..6410aa2cc --- /dev/null +++ b/kernel/sound/soc/blackfin/Kconfig @@ -0,0 +1,205 @@ +config SND_BF5XX_I2S + tristate "SoC I2S Audio for the ADI Blackfin chip" + depends on BLACKFIN + select SND_BF5XX_SOC_SPORT if !BF60x + select SND_BF6XX_SOC_SPORT if BF60x + help + Say Y or M if you want to add support for codecs attached to + the Blackfin SPORT (synchronous serial ports) interface in I2S + mode (supports single stereo In/Out). + You will also need to select the audio interfaces to support below. + +config SND_BF5XX_SOC_SSM2602 + tristate "SoC SSM2602 Audio Codec Add-On Card support" + depends on SND_BF5XX_I2S && SND_SOC_I2C_AND_SPI + select SND_BF5XX_SOC_I2S if !BF60x + select SND_BF6XX_SOC_I2S if BF60x + select SND_SOC_SSM2602_SPI if SPI_MASTER + select SND_SOC_SSM2602_I2C if I2C + help + Say Y if you want to add support for the Analog Devices + SSM2602 Audio Codec Add-On Card. + +config SND_SOC_BFIN_EVAL_ADAU1701 + tristate "Support for the EVAL-ADAU1701MINIZ board on Blackfin eval boards" + depends on SND_BF5XX_I2S && I2C + select SND_BF5XX_SOC_I2S + select SND_SOC_ADAU1701 + help + Say Y if you want to add support for the Analog Devices EVAL-ADAU1701MINIZ + board connected to one of the Blackfin evaluation boards like the + BF5XX-STAMP or BF5XX-EZKIT. + +config SND_SOC_BFIN_EVAL_ADAU1373 + tristate "Support for the EVAL-ADAU1373 board on Blackfin eval boards" + depends on SND_BF5XX_I2S && I2C + select SND_BF5XX_SOC_I2S + select SND_SOC_ADAU1373 + help + Say Y if you want to add support for the Analog Devices EVAL-ADAU1373 + board connected to one of the Blackfin evaluation boards like the + BF5XX-STAMP or BF5XX-EZKIT. + + Note: This driver assumes that first ADAU1373 DAI is connected to the + first SPORT port on the BF5XX board. + +config SND_SOC_BFIN_EVAL_ADAU1X61 + tristate "Support for the EVAL-ADAU1X61 board on Blackfin eval boards" + depends on SND_BF5XX_I2S && I2C + select SND_BF5XX_SOC_I2S + select SND_SOC_ADAU1761_I2C + help + Say Y if you want to add support for the Analog Devices EVAL-ADAU1X61 + board connected to one of the Blackfin evaluation boards like the + BF5XX-STAMP or BF5XX-EZKIT. + + Note: This driver assumes that the ADAU1X61 is connected to the + first SPORT port on the BF5XX board. + +config SND_SOC_BFIN_EVAL_ADAU1X81 + tristate "Support for the EVAL-ADAU1X81 boards on Blackfin eval boards" + depends on SND_BF5XX_I2S && I2C + select SND_BF5XX_SOC_I2S + select SND_SOC_ADAU1781_I2C + help + Say Y if you want to add support for the Analog Devices EVAL-ADAU1X81 + board connected to one of the Blackfin evaluation boards like the + BF5XX-STAMP or BF5XX-EZKIT. + + Note: This driver assumes that the ADAU1X81 is connected to the + first SPORT port on the BF5XX board. + +config SND_SOC_BFIN_EVAL_ADAV80X + tristate "Support for the EVAL-ADAV80X boards on Blackfin eval boards" + depends on SND_BF5XX_I2S && SND_SOC_I2C_AND_SPI + select SND_BF5XX_SOC_I2S + select SND_SOC_ADAV801 if SPI_MASTER + select SND_SOC_ADAV803 if I2C + help + Say Y if you want to add support for the Analog Devices EVAL-ADAV801 or + EVAL-ADAV803 board connected to one of the Blackfin evaluation boards + like the BF5XX-STAMP or BF5XX-EZKIT. + + Note: This driver assumes that the ADAV80X digital record and playback + interfaces are connected to the first SPORT port on the BF5XX board. + +config SND_BF5XX_SOC_AD1836 + tristate "SoC AD1836 Audio support for BF5xx" + depends on SND_BF5XX_I2S && SPI_MASTER + select SND_BF5XX_SOC_I2S + select SND_SOC_AD1836 + help + Say Y if you want to add support for SoC audio on BF5xx STAMP/EZKIT. + +config SND_BF5XX_SOC_AD193X + tristate "SoC AD193X Audio support for Blackfin" + depends on SND_BF5XX_I2S && SND_SOC_I2C_AND_SPI + select SND_BF5XX_SOC_I2S + select SND_SOC_AD193X_I2C if I2C + select SND_SOC_AD193X_SPI if SPI_MASTER + help + Say Y if you want to add support for AD193X codec on Blackfin. + This driver supports AD1936, AD1937, AD1938 and AD1939. + +config SND_BF5XX_SOC_AD73311 + tristate "SoC AD73311 Audio support for Blackfin" + depends on SND_BF5XX_I2S + select SND_BF5XX_SOC_I2S + select SND_SOC_AD73311 + help + Say Y if you want to add support for AD73311 codec on Blackfin. + +config SND_BFIN_AD73311_SE + int "PF pin for AD73311L Chip Select" + depends on SND_BF5XX_SOC_AD73311 + default 4 + help + Enter the GPIO used to control AD73311's SE pin. Acceptable + values are 0 to 7 + +config SND_BF5XX_AC97 + tristate "SoC AC97 Audio for the ADI BF5xx chip" + depends on BLACKFIN + select AC97_BUS + select SND_SOC_AC97_BUS + select SND_BF5XX_SOC_SPORT + select SND_BF5XX_SOC_AC97 + help + Say Y or M if you want to add support for codecs attached to + the Blackfin SPORT (synchronous serial ports) interface in slot 16 + mode (pseudo AC97 interface). + You will also need to select the audio interfaces to support below. + + Note: + AC97 codecs which do not implement the slot-16 mode will not function + properly with this driver. This driver is known to work with the + Analog Devices line of AC97 codecs. + +config SND_BF5XX_MMAP_SUPPORT + bool "Enable MMAP Support" + depends on SND_BF5XX_AC97 + default y + help + Say y if you want AC97 driver to support mmap mode. + We introduce an intermediate buffer to simulate mmap. + +config SND_BF5XX_MULTICHAN_SUPPORT + bool "Enable Multichannel Support" + depends on SND_BF5XX_AC97 + default n + help + Say y if you want AC97 driver to support up to 5.1 channel audio. + this mode will consume much more memory for DMA. + +config SND_BF5XX_HAVE_COLD_RESET + bool "BOARD has COLD Reset GPIO" + depends on SND_BF5XX_AC97 + default y if BFIN548_EZKIT + default n if !BFIN548_EZKIT + +config SND_BF5XX_RESET_GPIO_NUM + int "Set a GPIO for cold reset" + depends on SND_BF5XX_HAVE_COLD_RESET + range 0 159 + default 19 if BFIN548_EZKIT + default 5 if BFIN537_STAMP + default 0 + help + Set the correct GPIO for RESET the sound chip. + +config SND_BF5XX_SOC_AD1980 + tristate "SoC AD1980/1 Audio support for BF5xx (Obsolete)" + depends on SND_BF5XX_AC97 + select SND_BF5XX_SOC_AC97 + select SND_SOC_AD1980 + help + Say Y if you want to add support for SoC audio on BF5xx STAMP/EZKIT. + + Warning: + Because Analog Devices Inc. discontinued the ad1980 sound chip since + Sep. 2009, this ad1980 driver is not maintained, tested and supported + by ADI now. + +config SND_BF5XX_SOC_SPORT + tristate + +config SND_BF6XX_SOC_SPORT + tristate + +config SND_BF5XX_SOC_I2S + tristate + +config SND_BF6XX_SOC_I2S + tristate + +config SND_BF5XX_SOC_AC97 + tristate + +config SND_BF5XX_SPORT_NUM + int "Set a SPORT for Sound chip" + depends on (SND_BF5XX_SOC_SPORT || SND_BF6XX_SOC_SPORT) + range 0 3 if BF54x + range 0 1 if !BF54x + default 0 + help + Set the correct SPORT for sound chip. diff --git a/kernel/sound/soc/blackfin/Makefile b/kernel/sound/soc/blackfin/Makefile new file mode 100644 index 000000000..f21e948b2 --- /dev/null +++ b/kernel/sound/soc/blackfin/Makefile @@ -0,0 +1,39 @@ +# Blackfin Platform Support +snd-bf5xx-ac97-objs := bf5xx-ac97-pcm.o +snd-bf5xx-i2s-objs := bf5xx-i2s-pcm.o +snd-soc-bf5xx-sport-objs := bf5xx-sport.o +snd-soc-bf6xx-sport-objs := bf6xx-sport.o +snd-soc-bf5xx-ac97-objs := bf5xx-ac97.o +snd-soc-bf5xx-i2s-objs := bf5xx-i2s.o +snd-soc-bf6xx-i2s-objs := bf6xx-i2s.o + +obj-$(CONFIG_SND_BF5XX_AC97) += snd-bf5xx-ac97.o +obj-$(CONFIG_SND_BF5XX_I2S) += snd-bf5xx-i2s.o +obj-$(CONFIG_SND_BF5XX_SOC_SPORT) += snd-soc-bf5xx-sport.o +obj-$(CONFIG_SND_BF6XX_SOC_SPORT) += snd-soc-bf6xx-sport.o +obj-$(CONFIG_SND_BF5XX_SOC_AC97) += snd-soc-bf5xx-ac97.o +obj-$(CONFIG_SND_BF5XX_SOC_I2S) += snd-soc-bf5xx-i2s.o +obj-$(CONFIG_SND_BF6XX_SOC_I2S) += snd-soc-bf6xx-i2s.o + +# Blackfin Machine Support +snd-ad1836-objs := bf5xx-ad1836.o +snd-ad1980-objs := bf5xx-ad1980.o +snd-ssm2602-objs := bf5xx-ssm2602.o +snd-ad73311-objs := bf5xx-ad73311.o +snd-ad193x-objs := bf5xx-ad193x.o +snd-soc-bfin-eval-adau1373-objs := bfin-eval-adau1373.o +snd-soc-bfin-eval-adau1x61-objs := bfin-eval-adau1x61.o +snd-soc-bfin-eval-adau1x81-objs := bfin-eval-adau1x81.o +snd-soc-bfin-eval-adau1701-objs := bfin-eval-adau1701.o +snd-soc-bfin-eval-adav80x-objs := bfin-eval-adav80x.o + +obj-$(CONFIG_SND_BF5XX_SOC_AD1836) += snd-ad1836.o +obj-$(CONFIG_SND_BF5XX_SOC_AD1980) += snd-ad1980.o +obj-$(CONFIG_SND_BF5XX_SOC_SSM2602) += snd-ssm2602.o +obj-$(CONFIG_SND_BF5XX_SOC_AD73311) += snd-ad73311.o +obj-$(CONFIG_SND_BF5XX_SOC_AD193X) += snd-ad193x.o +obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373) += snd-soc-bfin-eval-adau1373.o +obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61) += snd-soc-bfin-eval-adau1x61.o +obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X81) += snd-soc-bfin-eval-adau1x81.o +obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1701) += snd-soc-bfin-eval-adau1701.o +obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X) += snd-soc-bfin-eval-adav80x.o diff --git a/kernel/sound/soc/blackfin/bf5xx-ac97-pcm.c b/kernel/sound/soc/blackfin/bf5xx-ac97-pcm.c new file mode 100644 index 000000000..238913e03 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-ac97-pcm.c @@ -0,0 +1,475 @@ +/* + * File: sound/soc/blackfin/bf5xx-ac97-pcm.c + * Author: Cliff Cai <Cliff.Cai@analog.com> + * + * Created: Tue June 06 2008 + * Description: DMA Driver for AC97 sound chip + * + * Modified: + * Copyright 2008 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/gfp.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <asm/dma.h> + +#include "bf5xx-ac97.h" +#include "bf5xx-sport.h" + +static unsigned int ac97_chan_mask[] = { + SP_FL, /* Mono */ + SP_STEREO, /* Stereo */ + SP_2DOT1, /* 2.1*/ + SP_QUAD,/*Quadraquic*/ + SP_FL | SP_FR | SP_FC | SP_SL | SP_SR,/*5 channels */ + SP_5DOT1, /* 5.1 */ +}; + +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) +static void bf5xx_mmap_copy(struct snd_pcm_substream *substream, + snd_pcm_uframes_t count) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + unsigned int chan_mask = ac97_chan_mask[runtime->channels - 1]; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + bf5xx_pcm_to_ac97((struct ac97_frame *)sport->tx_dma_buf + + sport->tx_pos, (__u16 *)runtime->dma_area + sport->tx_pos * + runtime->channels, count, chan_mask); + sport->tx_pos += runtime->period_size; + if (sport->tx_pos >= runtime->buffer_size) + sport->tx_pos %= runtime->buffer_size; + sport->tx_delay_pos = sport->tx_pos; + } else { + bf5xx_ac97_to_pcm((struct ac97_frame *)sport->rx_dma_buf + + sport->rx_pos, (__u16 *)runtime->dma_area + sport->rx_pos * + runtime->channels, count); + sport->rx_pos += runtime->period_size; + if (sport->rx_pos >= runtime->buffer_size) + sport->rx_pos %= runtime->buffer_size; + } +} +#endif + +static void bf5xx_dma_irq(void *data) +{ + struct snd_pcm_substream *pcm = data; +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + struct snd_pcm_runtime *runtime = pcm->runtime; + struct sport_device *sport = runtime->private_data; + bf5xx_mmap_copy(pcm, runtime->period_size); + if (pcm->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (sport->once == 0) { + snd_pcm_period_elapsed(pcm); + bf5xx_mmap_copy(pcm, runtime->period_size); + sport->once = 1; + } + } +#endif + snd_pcm_period_elapsed(pcm); +} + +/* The memory size for pure pcm data is 128*1024 = 0x20000 bytes. + * The total rx/tx buffer is for ac97 frame to hold all pcm data + * is 0x20000 * sizeof(struct ac97_frame) / 4. + */ +static const struct snd_pcm_hardware bf5xx_pcm_hardware = { + .info = SNDRV_PCM_INFO_INTERLEAVED | +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | +#endif + SNDRV_PCM_INFO_BLOCK_TRANSFER, + + .period_bytes_min = 32, + .period_bytes_max = 0x10000, + .periods_min = 1, + .periods_max = PAGE_SIZE/32, + .buffer_bytes_max = 0x20000, /* 128 kbytes */ + .fifo_size = 16, +}; + +static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + size_t size = bf5xx_pcm_hardware.buffer_bytes_max + * sizeof(struct ac97_frame) / 4; + + snd_pcm_lib_malloc_pages(substream, size); + + return 0; +} + +static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream) +{ +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + sport->once = 0; + if (runtime->dma_area) + memset(runtime->dma_area, 0, runtime->buffer_size); + memset(sport->tx_dma_buf, 0, runtime->buffer_size * + sizeof(struct ac97_frame)); + } else + memset(sport->rx_dma_buf, 0, runtime->buffer_size * + sizeof(struct ac97_frame)); +#endif + snd_pcm_lib_free_pages(substream); + return 0; +} + +static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + + /* An intermediate buffer is introduced for implementing mmap for + * SPORT working in TMD mode(include AC97). + */ +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + sport_set_tx_callback(sport, bf5xx_dma_irq, substream); + sport_config_tx_dma(sport, sport->tx_dma_buf, runtime->periods, + runtime->period_size * sizeof(struct ac97_frame)); + } else { + sport_set_rx_callback(sport, bf5xx_dma_irq, substream); + sport_config_rx_dma(sport, sport->rx_dma_buf, runtime->periods, + runtime->period_size * sizeof(struct ac97_frame)); + } +#else + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + sport_set_tx_callback(sport, bf5xx_dma_irq, substream); + sport_config_tx_dma(sport, runtime->dma_area, runtime->periods, + runtime->period_size * sizeof(struct ac97_frame)); + } else { + sport_set_rx_callback(sport, bf5xx_dma_irq, substream); + sport_config_rx_dma(sport, runtime->dma_area, runtime->periods, + runtime->period_size * sizeof(struct ac97_frame)); + } +#endif + return 0; +} + +static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + int ret = 0; + + pr_debug("%s enter\n", __func__); + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + bf5xx_mmap_copy(substream, runtime->period_size); + sport->tx_delay_pos = 0; +#endif + sport_tx_start(sport); + } else + sport_rx_start(sport); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + sport->tx_pos = 0; +#endif + sport_tx_stop(sport); + } else { +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + sport->rx_pos = 0; +#endif + sport_rx_stop(sport); + } + break; + default: + ret = -EINVAL; + } + return ret; +} + +static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + unsigned int curr; + +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + curr = sport->tx_delay_pos; + else + curr = sport->rx_pos; +#else + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + curr = sport_curr_offset_tx(sport) / sizeof(struct ac97_frame); + else + curr = sport_curr_offset_rx(sport) / sizeof(struct ac97_frame); + +#endif + return curr; +} + +static int bf5xx_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai); + struct snd_pcm_runtime *runtime = substream->runtime; + int ret; + + pr_debug("%s enter\n", __func__); + snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware); + + ret = snd_pcm_hw_constraint_integer(runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) + goto out; + + if (sport_handle != NULL) + runtime->private_data = sport_handle; + else { + pr_err("sport_handle is NULL\n"); + return -1; + } + return 0; + + out: + return ret; +} + +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) +static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + size_t size = vma->vm_end - vma->vm_start; + vma->vm_start = (unsigned long)runtime->dma_area; + vma->vm_end = vma->vm_start + size; + vma->vm_flags |= VM_SHARED; + return 0 ; +} +#else +static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel, + snd_pcm_uframes_t pos, + void __user *buf, snd_pcm_uframes_t count) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + unsigned int chan_mask = ac97_chan_mask[runtime->channels - 1]; + pr_debug("%s copy pos:0x%lx count:0x%lx\n", + substream->stream ? "Capture" : "Playback", pos, count); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + bf5xx_pcm_to_ac97((struct ac97_frame *)runtime->dma_area + pos, + (__u16 *)buf, count, chan_mask); + else + bf5xx_ac97_to_pcm((struct ac97_frame *)runtime->dma_area + pos, + (__u16 *)buf, count); + return 0; +} +#endif + +static struct snd_pcm_ops bf5xx_pcm_ac97_ops = { + .open = bf5xx_pcm_open, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = bf5xx_pcm_hw_params, + .hw_free = bf5xx_pcm_hw_free, + .prepare = bf5xx_pcm_prepare, + .trigger = bf5xx_pcm_trigger, + .pointer = bf5xx_pcm_pointer, +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + .mmap = bf5xx_pcm_mmap, +#else + .copy = bf5xx_pcm_copy, +#endif +}; + +static int bf5xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream) +{ + struct snd_soc_pcm_runtime *rtd = pcm->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai); + struct snd_pcm_substream *substream = pcm->streams[stream].substream; + struct snd_dma_buffer *buf = &substream->dma_buffer; + size_t size = bf5xx_pcm_hardware.buffer_bytes_max + * sizeof(struct ac97_frame) / 4; + + buf->dev.type = SNDRV_DMA_TYPE_DEV; + buf->dev.dev = pcm->card->dev; + buf->private_data = NULL; + buf->area = dma_alloc_coherent(pcm->card->dev, size, + &buf->addr, GFP_KERNEL); + if (!buf->area) { + pr_err("Failed to allocate dma memory\n"); + pr_err("Please increase uncached DMA memory region\n"); + return -ENOMEM; + } + buf->bytes = size; + + pr_debug("%s, area:%p, size:0x%08lx\n", __func__, + buf->area, buf->bytes); + + if (stream == SNDRV_PCM_STREAM_PLAYBACK) + sport_handle->tx_buf = buf->area; + else + sport_handle->rx_buf = buf->area; + +/* + * Need to allocate local buffer when enable + * MMAP for SPORT working in TMD mode (include AC97). + */ +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (!sport_handle->tx_dma_buf) { + sport_handle->tx_dma_buf = dma_alloc_coherent(NULL, \ + size, &sport_handle->tx_dma_phy, GFP_KERNEL); + if (!sport_handle->tx_dma_buf) { + pr_err("Failed to allocate memory for tx dma buf - Please increase uncached DMA memory region\n"); + return -ENOMEM; + } else + memset(sport_handle->tx_dma_buf, 0, size); + } else + memset(sport_handle->tx_dma_buf, 0, size); + } else { + if (!sport_handle->rx_dma_buf) { + sport_handle->rx_dma_buf = dma_alloc_coherent(NULL, \ + size, &sport_handle->rx_dma_phy, GFP_KERNEL); + if (!sport_handle->rx_dma_buf) { + pr_err("Failed to allocate memory for rx dma buf - Please increase uncached DMA memory region\n"); + return -ENOMEM; + } else + memset(sport_handle->rx_dma_buf, 0, size); + } else + memset(sport_handle->rx_dma_buf, 0, size); + } +#endif + return 0; +} + +static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm) +{ + struct snd_pcm_substream *substream; + struct snd_dma_buffer *buf; + int stream; +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + struct snd_soc_pcm_runtime *rtd = pcm->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai); + size_t size = bf5xx_pcm_hardware.buffer_bytes_max * + sizeof(struct ac97_frame) / 4; +#endif + for (stream = 0; stream < 2; stream++) { + substream = pcm->streams[stream].substream; + if (!substream) + continue; + + buf = &substream->dma_buffer; + if (!buf->area) + continue; + dma_free_coherent(NULL, buf->bytes, buf->area, 0); + buf->area = NULL; +#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (sport_handle->tx_dma_buf) + dma_free_coherent(NULL, size, \ + sport_handle->tx_dma_buf, 0); + sport_handle->tx_dma_buf = NULL; + } else { + + if (sport_handle->rx_dma_buf) + dma_free_coherent(NULL, size, \ + sport_handle->rx_dma_buf, 0); + sport_handle->rx_dma_buf = NULL; + } +#endif + } +} + +static int bf5xx_pcm_ac97_new(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_card *card = rtd->card->snd_card; + struct snd_pcm *pcm = rtd->pcm; + int ret; + + pr_debug("%s enter\n", __func__); + ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) { + ret = bf5xx_pcm_preallocate_dma_buffer(pcm, + SNDRV_PCM_STREAM_PLAYBACK); + if (ret) + goto out; + } + + if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { + ret = bf5xx_pcm_preallocate_dma_buffer(pcm, + SNDRV_PCM_STREAM_CAPTURE); + if (ret) + goto out; + } + out: + return ret; +} + +static struct snd_soc_platform_driver bf5xx_ac97_soc_platform = { + .ops = &bf5xx_pcm_ac97_ops, + .pcm_new = bf5xx_pcm_ac97_new, + .pcm_free = bf5xx_pcm_free_dma_buffers, +}; + +static int bf5xx_soc_platform_probe(struct platform_device *pdev) +{ + return snd_soc_register_platform(&pdev->dev, &bf5xx_ac97_soc_platform); +} + +static int bf5xx_soc_platform_remove(struct platform_device *pdev) +{ + snd_soc_unregister_platform(&pdev->dev); + return 0; +} + +static struct platform_driver bf5xx_pcm_driver = { + .driver = { + .name = "bfin-ac97-pcm-audio", + }, + + .probe = bf5xx_soc_platform_probe, + .remove = bf5xx_soc_platform_remove, +}; + +module_platform_driver(bf5xx_pcm_driver); + +MODULE_AUTHOR("Cliff Cai"); +MODULE_DESCRIPTION("ADI Blackfin AC97 PCM DMA module"); +MODULE_LICENSE("GPL"); diff --git a/kernel/sound/soc/blackfin/bf5xx-ac97.c b/kernel/sound/soc/blackfin/bf5xx-ac97.c new file mode 100644 index 000000000..a040cfe29 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-ac97.c @@ -0,0 +1,388 @@ +/* + * bf5xx-ac97.c -- AC97 support for the ADI blackfin chip. + * + * Author: Roy Huang + * Created: 11th. June 2007 + * Copyright: Analog Device Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/interrupt.h> +#include <linux/wait.h> +#include <linux/delay.h> +#include <linux/slab.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/ac97_codec.h> +#include <sound/initval.h> +#include <sound/soc.h> + +#include <asm/irq.h> +#include <asm/portmux.h> +#include <linux/mutex.h> +#include <linux/gpio.h> + +#include "bf5xx-sport.h" +#include "bf5xx-ac97.h" + +/* Anomaly notes: + * 05000250 - AD1980 is running in TDM mode and RFS/TFS are generated by SPORT + * contrtoller. But, RFSDIV and TFSDIV are always set to 16*16-1, + * while the max AC97 data size is 13*16. The DIV is always larger + * than data size. AD73311 and ad2602 are not running in TDM mode. + * AD1836 and AD73322 depend on external RFS/TFS only. So, this + * anomaly does not affect blackfin sound drivers. +*/ + +static struct sport_device *ac97_sport_handle; + +void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, + size_t count, unsigned int chan_mask) +{ + while (count--) { + dst->ac97_tag = TAG_VALID; + if (chan_mask & SP_FL) { + dst->ac97_pcm_r = *src++; + dst->ac97_tag |= TAG_PCM_RIGHT; + } + if (chan_mask & SP_FR) { + dst->ac97_pcm_l = *src++; + dst->ac97_tag |= TAG_PCM_LEFT; + + } +#if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) + if (chan_mask & SP_SR) { + dst->ac97_sl = *src++; + dst->ac97_tag |= TAG_PCM_SL; + } + if (chan_mask & SP_SL) { + dst->ac97_sr = *src++; + dst->ac97_tag |= TAG_PCM_SR; + } + if (chan_mask & SP_LFE) { + dst->ac97_lfe = *src++; + dst->ac97_tag |= TAG_PCM_LFE; + } + if (chan_mask & SP_FC) { + dst->ac97_center = *src++; + dst->ac97_tag |= TAG_PCM_CENTER; + } +#endif + dst++; + } +} +EXPORT_SYMBOL(bf5xx_pcm_to_ac97); + +void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u16 *dst, + size_t count) +{ + while (count--) { + *(dst++) = src->ac97_pcm_l; + *(dst++) = src->ac97_pcm_r; + src++; + } +} +EXPORT_SYMBOL(bf5xx_ac97_to_pcm); + +static unsigned int sport_tx_curr_frag(struct sport_device *sport) +{ + return sport->tx_curr_frag = sport_curr_offset_tx(sport) / + sport->tx_fragsize; +} + +static void enqueue_cmd(struct snd_ac97 *ac97, __u16 addr, __u16 data) +{ + struct sport_device *sport = ac97_sport_handle; + int *cmd_count = sport->private_data; + int nextfrag = sport_tx_curr_frag(sport); + struct ac97_frame *nextwrite; + + sport_incfrag(sport, &nextfrag, 1); + + nextwrite = (struct ac97_frame *)(sport->tx_buf + + nextfrag * sport->tx_fragsize); + pr_debug("sport->tx_buf:%p, nextfrag:0x%x nextwrite:%p, cmd_count:%d\n", + sport->tx_buf, nextfrag, nextwrite, cmd_count[nextfrag]); + nextwrite[cmd_count[nextfrag]].ac97_tag |= TAG_CMD; + nextwrite[cmd_count[nextfrag]].ac97_addr = addr; + nextwrite[cmd_count[nextfrag]].ac97_data = data; + ++cmd_count[nextfrag]; + pr_debug("ac97_sport: Inserting %02x/%04x into fragment %d\n", + addr >> 8, data, nextfrag); +} + +static unsigned short bf5xx_ac97_read(struct snd_ac97 *ac97, + unsigned short reg) +{ + struct sport_device *sport_handle = ac97_sport_handle; + struct ac97_frame out_frame[2], in_frame[2]; + + pr_debug("%s enter 0x%x\n", __func__, reg); + + /* When dma descriptor is enabled, the register should not be read */ + if (sport_handle->tx_run || sport_handle->rx_run) { + pr_err("Could you send a mail to cliff.cai@analog.com " + "to report this?\n"); + return -EFAULT; + } + + memset(&out_frame, 0, 2 * sizeof(struct ac97_frame)); + memset(&in_frame, 0, 2 * sizeof(struct ac97_frame)); + out_frame[0].ac97_tag = TAG_VALID | TAG_CMD; + out_frame[0].ac97_addr = ((reg << 8) | 0x8000); + sport_send_and_recv(sport_handle, (unsigned char *)&out_frame, + (unsigned char *)&in_frame, + 2 * sizeof(struct ac97_frame)); + return in_frame[1].ac97_data; +} + +void bf5xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, + unsigned short val) +{ + struct sport_device *sport_handle = ac97_sport_handle; + + pr_debug("%s enter 0x%x:0x%04x\n", __func__, reg, val); + + if (sport_handle->tx_run) { + enqueue_cmd(ac97, (reg << 8), val); /* write */ + enqueue_cmd(ac97, (reg << 8) | 0x8000, 0); /* read back */ + } else { + struct ac97_frame frame; + memset(&frame, 0, sizeof(struct ac97_frame)); + frame.ac97_tag = TAG_VALID | TAG_CMD; + frame.ac97_addr = (reg << 8); + frame.ac97_data = val; + sport_send_and_recv(sport_handle, (unsigned char *)&frame, \ + NULL, sizeof(struct ac97_frame)); + } +} + +static void bf5xx_ac97_warm_reset(struct snd_ac97 *ac97) +{ + struct sport_device *sport_handle = ac97_sport_handle; + u16 gpio = P_IDENT(sport_handle->pin_req[3]); + + pr_debug("%s enter\n", __func__); + + peripheral_free_list(sport_handle->pin_req); + gpio_request(gpio, "bf5xx-ac97"); + gpio_direction_output(gpio, 1); + udelay(2); + gpio_set_value(gpio, 0); + udelay(1); + gpio_free(gpio); + peripheral_request_list(sport_handle->pin_req, "soc-audio"); +} + +static void bf5xx_ac97_cold_reset(struct snd_ac97 *ac97) +{ +#ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET + pr_debug("%s enter\n", __func__); + + /* It is specified for bf548-ezkit */ + gpio_set_value(CONFIG_SND_BF5XX_RESET_GPIO_NUM, 0); + /* Keep reset pin low for 1 ms */ + mdelay(1); + gpio_set_value(CONFIG_SND_BF5XX_RESET_GPIO_NUM, 1); + /* Wait for bit clock recover */ + mdelay(1); +#else + pr_info("%s: Not implemented\n", __func__); +#endif +} + +static struct snd_ac97_bus_ops bf5xx_ac97_ops = { + .read = bf5xx_ac97_read, + .write = bf5xx_ac97_write, + .warm_reset = bf5xx_ac97_warm_reset, + .reset = bf5xx_ac97_cold_reset, +}; + +#ifdef CONFIG_PM +static int bf5xx_ac97_suspend(struct snd_soc_dai *dai) +{ + struct sport_device *sport = snd_soc_dai_get_drvdata(dai); + + pr_debug("%s : sport %d\n", __func__, dai->id); + if (!dai->active) + return 0; + if (dai->capture_active) + sport_rx_stop(sport); + if (dai->playback_active) + sport_tx_stop(sport); + return 0; +} + +static int bf5xx_ac97_resume(struct snd_soc_dai *dai) +{ + int ret; + struct sport_device *sport = snd_soc_dai_get_drvdata(dai); + + pr_debug("%s : sport %d\n", __func__, dai->id); + if (!dai->active) + return 0; + +#if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) + ret = sport_set_multichannel(sport, 16, 0x3FF, 0x3FF, 1); +#else + ret = sport_set_multichannel(sport, 16, 0x1F, 0x1F, 1); +#endif + if (ret) { + pr_err("SPORT is busy!\n"); + return -EBUSY; + } + + ret = sport_config_rx(sport, IRFS, 0xF, 0, (16*16-1)); + if (ret) { + pr_err("SPORT is busy!\n"); + return -EBUSY; + } + + ret = sport_config_tx(sport, ITFS, 0xF, 0, (16*16-1)); + if (ret) { + pr_err("SPORT is busy!\n"); + return -EBUSY; + } + + return 0; +} + +#else +#define bf5xx_ac97_suspend NULL +#define bf5xx_ac97_resume NULL +#endif + +static struct snd_soc_dai_driver bfin_ac97_dai = { + .bus_control = true, + .suspend = bf5xx_ac97_suspend, + .resume = bf5xx_ac97_resume, + .playback = { + .stream_name = "AC97 Playback", + .channels_min = 2, +#if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) + .channels_max = 6, +#else + .channels_max = 2, +#endif + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, }, + .capture = { + .stream_name = "AC97 Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, }, +}; + +static const struct snd_soc_component_driver bfin_ac97_component = { + .name = "bfin-ac97", +}; + +static int asoc_bfin_ac97_probe(struct platform_device *pdev) +{ + struct sport_device *sport_handle; + int ret; + +#ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET + /* Request PB3 as reset pin */ + ret = devm_gpio_request_one(&pdev->dev, + CONFIG_SND_BF5XX_RESET_GPIO_NUM, + GPIOF_OUT_INIT_HIGH, "SND_AD198x RESET"); + if (ret) { + dev_err(&pdev->dev, + "Failed to request GPIO_%d for reset: %d\n", + CONFIG_SND_BF5XX_RESET_GPIO_NUM, ret); + return ret; + } +#endif + + sport_handle = sport_init(pdev, 2, sizeof(struct ac97_frame), + PAGE_SIZE); + if (!sport_handle) { + ret = -ENODEV; + goto sport_err; + } + + /*SPORT works in TDM mode to simulate AC97 transfers*/ +#if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) + ret = sport_set_multichannel(sport_handle, 16, 0x3FF, 0x3FF, 1); +#else + ret = sport_set_multichannel(sport_handle, 16, 0x1F, 0x1F, 1); +#endif + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + goto sport_config_err; + } + + ret = sport_config_rx(sport_handle, IRFS, 0xF, 0, (16*16-1)); + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + goto sport_config_err; + } + + ret = sport_config_tx(sport_handle, ITFS, 0xF, 0, (16*16-1)); + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + goto sport_config_err; + } + + ret = snd_soc_set_ac97_ops(&bf5xx_ac97_ops); + if (ret != 0) { + dev_err(&pdev->dev, "Failed to set AC'97 ops: %d\n", ret); + goto sport_config_err; + } + + ret = snd_soc_register_component(&pdev->dev, &bfin_ac97_component, + &bfin_ac97_dai, 1); + if (ret) { + pr_err("Failed to register DAI: %d\n", ret); + goto sport_config_err; + } + + ac97_sport_handle = sport_handle; + + return 0; + +sport_config_err: + sport_done(sport_handle); +sport_err: + snd_soc_set_ac97_ops(NULL); + + return ret; +} + +static int asoc_bfin_ac97_remove(struct platform_device *pdev) +{ + struct sport_device *sport_handle = platform_get_drvdata(pdev); + + snd_soc_unregister_component(&pdev->dev); + sport_done(sport_handle); + snd_soc_set_ac97_ops(NULL); + + return 0; +} + +static struct platform_driver asoc_bfin_ac97_driver = { + .driver = { + .name = "bfin-ac97", + }, + + .probe = asoc_bfin_ac97_probe, + .remove = asoc_bfin_ac97_remove, +}; + +module_platform_driver(asoc_bfin_ac97_driver); + +MODULE_AUTHOR("Roy Huang"); +MODULE_DESCRIPTION("AC97 driver for ADI Blackfin"); +MODULE_LICENSE("GPL"); diff --git a/kernel/sound/soc/blackfin/bf5xx-ac97.h b/kernel/sound/soc/blackfin/bf5xx-ac97.h new file mode 100644 index 000000000..a680fdc9b --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-ac97.h @@ -0,0 +1,57 @@ +/* + * sound/soc/blackfin/bf5xx-ac97.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _BF5XX_AC97_H +#define _BF5XX_AC97_H + +/* Frame format in memory, only support stereo currently */ +struct ac97_frame { + u16 ac97_tag; /* slot 0 */ + u16 ac97_addr; /* slot 1 */ + u16 ac97_data; /* slot 2 */ + u16 ac97_pcm_l; /*slot 3:front left*/ + u16 ac97_pcm_r; /*slot 4:front left*/ +#if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) + u16 ac97_mdm_l1; + u16 ac97_center; /*slot 6:center*/ + u16 ac97_sl; /*slot 7:surround left*/ + u16 ac97_sr; /*slot 8:surround right*/ + u16 ac97_lfe; /*slot 9:lfe*/ +#endif +} __attribute__ ((packed)); + +/* Speaker location */ +#define SP_FL 0x0001 +#define SP_FR 0x0010 +#define SP_FC 0x0002 +#define SP_LFE 0x0020 +#define SP_SL 0x0004 +#define SP_SR 0x0040 + +#define SP_STEREO (SP_FL | SP_FR) +#define SP_2DOT1 (SP_FL | SP_FR | SP_LFE) +#define SP_QUAD (SP_FL | SP_FR | SP_SL | SP_SR) +#define SP_5DOT1 (SP_FL | SP_FR | SP_FC | SP_LFE | SP_SL | SP_SR) + +#define TAG_VALID 0x8000 +#define TAG_CMD 0x6000 +#define TAG_PCM_LEFT 0x1000 +#define TAG_PCM_RIGHT 0x0800 +#define TAG_PCM_MDM_L1 0x0400 +#define TAG_PCM_CENTER 0x0200 +#define TAG_PCM_SL 0x0100 +#define TAG_PCM_SR 0x0080 +#define TAG_PCM_LFE 0x0040 + +void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, \ + size_t count, unsigned int chan_mask); + +void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u16 *dst, \ + size_t count); + +#endif diff --git a/kernel/sound/soc/blackfin/bf5xx-ad1836.c b/kernel/sound/soc/blackfin/bf5xx-ad1836.c new file mode 100644 index 000000000..5bf1501e5 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-ad1836.c @@ -0,0 +1,118 @@ +/* + * File: sound/soc/blackfin/bf5xx-ad1836.c + * Author: Barry Song <Barry.Song@analog.com> + * + * Created: Aug 4 2009 + * Description: Board driver for ad1836 sound chip + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include <asm/blackfin.h> +#include <asm/cacheflush.h> +#include <asm/irq.h> +#include <asm/dma.h> +#include <asm/portmux.h> + +#include "../codecs/ad1836.h" + +static struct snd_soc_card bf5xx_ad1836; + +static int bf5xx_ad1836_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + unsigned int channel_map[] = {0, 4, 1, 5, 2, 6, 3, 7}; + int ret = 0; + + /* set cpu DAI channel mapping */ + ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map), + channel_map, ARRAY_SIZE(channel_map), channel_map); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xFF, 0xFF, 8, 32); + if (ret < 0) + return ret; + + return 0; +} + +#define BF5XX_AD1836_DAIFMT (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_IF | \ + SND_SOC_DAIFMT_CBM_CFM) + +static struct snd_soc_dai_link bf5xx_ad1836_dai = { + .name = "ad1836", + .stream_name = "AD1836", + .codec_dai_name = "ad1836-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .dai_fmt = BF5XX_AD1836_DAIFMT, + .init = bf5xx_ad1836_init, +}; + +static struct snd_soc_card bf5xx_ad1836 = { + .name = "bfin-ad1836", + .owner = THIS_MODULE, + .dai_link = &bf5xx_ad1836_dai, + .num_links = 1, +}; + +static int bf5xx_ad1836_driver_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &bf5xx_ad1836; + const char **link_name; + int ret; + + link_name = pdev->dev.platform_data; + if (!link_name) { + dev_err(&pdev->dev, "No platform data supplied\n"); + return -EINVAL; + } + bf5xx_ad1836_dai.cpu_dai_name = link_name[0]; + bf5xx_ad1836_dai.codec_name = link_name[1]; + + card->dev = &pdev->dev; + platform_set_drvdata(pdev, card); + + ret = snd_soc_register_card(card); + if (ret) + dev_err(&pdev->dev, "Failed to register card\n"); + return ret; +} + +static int bf5xx_ad1836_driver_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + return 0; +} + +static struct platform_driver bf5xx_ad1836_driver = { + .driver = { + .name = "bfin-snd-ad1836", + .pm = &snd_soc_pm_ops, + }, + .probe = bf5xx_ad1836_driver_probe, + .remove = bf5xx_ad1836_driver_remove, +}; +module_platform_driver(bf5xx_ad1836_driver); + +/* Module information */ +MODULE_AUTHOR("Barry Song"); +MODULE_DESCRIPTION("ALSA SoC AD1836 board driver"); +MODULE_LICENSE("GPL"); + diff --git a/kernel/sound/soc/blackfin/bf5xx-ad193x.c b/kernel/sound/soc/blackfin/bf5xx-ad193x.c new file mode 100644 index 000000000..603ad1f2b --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-ad193x.c @@ -0,0 +1,131 @@ +/* + * File: sound/soc/blackfin/bf5xx-ad193x.c + * Author: Barry Song <Barry.Song@analog.com> + * + * Created: Thur June 4 2009 + * Description: Board driver for ad193x sound chip + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include <asm/blackfin.h> +#include <asm/cacheflush.h> +#include <asm/irq.h> +#include <asm/dma.h> +#include <asm/portmux.h> + +#include "../codecs/ad193x.h" + +static struct snd_soc_card bf5xx_ad193x; + +static int bf5xx_ad193x_link_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int ret; + + /* set the codec system clock for DAC and ADC */ + ret = snd_soc_dai_set_sysclk(codec_dai, 0, 24576000, SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + /* set codec DAI slots, 8 channels, all channels are enabled */ + ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xFF, 0xFF, 8, 32); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xFF, 0xFF, 8, 32); + if (ret < 0) + return ret; + + return 0; +} + +#define BF5XX_AD193X_DAIFMT (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_IF | \ + SND_SOC_DAIFMT_CBM_CFM) + +static struct snd_soc_dai_link bf5xx_ad193x_dai[] = { + { + .name = "ad193x", + .stream_name = "AD193X", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name ="ad193x-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "spi0.5", + .dai_fmt = BF5XX_AD193X_DAIFMT, + .init = bf5xx_ad193x_link_init, + }, + { + .name = "ad193x", + .stream_name = "AD193X", + .cpu_dai_name = "bfin-i2s.1", + .codec_dai_name ="ad193x-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "spi0.5", + .dai_fmt = BF5XX_AD193X_DAIFMT, + .init = bf5xx_ad193x_link_init, + }, +}; + +static struct snd_soc_card bf5xx_ad193x = { + .name = "bfin-ad193x", + .owner = THIS_MODULE, + .dai_link = &bf5xx_ad193x_dai[CONFIG_SND_BF5XX_SPORT_NUM], + .num_links = 1, +}; + +static struct platform_device *bfxx_ad193x_snd_device; + +static int __init bf5xx_ad193x_init(void) +{ + int ret; + + bfxx_ad193x_snd_device = platform_device_alloc("soc-audio", -1); + if (!bfxx_ad193x_snd_device) + return -ENOMEM; + + platform_set_drvdata(bfxx_ad193x_snd_device, &bf5xx_ad193x); + ret = platform_device_add(bfxx_ad193x_snd_device); + + if (ret) + platform_device_put(bfxx_ad193x_snd_device); + + return ret; +} + +static void __exit bf5xx_ad193x_exit(void) +{ + platform_device_unregister(bfxx_ad193x_snd_device); +} + +module_init(bf5xx_ad193x_init); +module_exit(bf5xx_ad193x_exit); + +/* Module information */ +MODULE_AUTHOR("Barry Song"); +MODULE_DESCRIPTION("ALSA SoC AD193X board driver"); +MODULE_LICENSE("GPL"); + diff --git a/kernel/sound/soc/blackfin/bf5xx-ad1980.c b/kernel/sound/soc/blackfin/bf5xx-ad1980.c new file mode 100644 index 000000000..0fa81a523 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-ad1980.c @@ -0,0 +1,109 @@ +/* + * File: sound/soc/blackfin/bf5xx-ad1980.c + * Author: Cliff Cai <Cliff.Cai@analog.com> + * + * Created: Tue June 06 2008 + * Description: Board driver for AD1980/1 audio codec + * + * Modified: + * Copyright 2008 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * WARNING: + * + * Because Analog Devices Inc. discontinued the ad1980 sound chip since + * Sep. 2009, this ad1980 driver is not maintained, tested and supported + * by ADI now. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/device.h> +#include <asm/dma.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> + +#include <linux/gpio.h> +#include <asm/portmux.h> + +#include "bf5xx-ac97.h" + +static struct snd_soc_card bf5xx_board; + +static struct snd_soc_dai_link bf5xx_board_dai[] = { + { + .name = "AC97", + .stream_name = "AC97 HiFi", + .cpu_dai_name = "bfin-ac97.0", + .codec_dai_name = "ad1980-hifi", + .platform_name = "bfin-ac97-pcm-audio", + .codec_name = "ad1980", + }, + { + .name = "AC97", + .stream_name = "AC97 HiFi", + .cpu_dai_name = "bfin-ac97.1", + .codec_dai_name = "ad1980-hifi", + .platform_name = "bfin-ac97-pcm-audio", + .codec_name = "ad1980", + }, +}; + +static struct snd_soc_card bf5xx_board = { + .name = "bfin-ad1980", + .owner = THIS_MODULE, + .dai_link = &bf5xx_board_dai[CONFIG_SND_BF5XX_SPORT_NUM], + .num_links = 1, +}; + +static struct platform_device *bf5xx_board_snd_device; + +static int __init bf5xx_board_init(void) +{ + int ret; + + bf5xx_board_snd_device = platform_device_alloc("soc-audio", -1); + if (!bf5xx_board_snd_device) + return -ENOMEM; + + platform_set_drvdata(bf5xx_board_snd_device, &bf5xx_board); + ret = platform_device_add(bf5xx_board_snd_device); + + if (ret) + platform_device_put(bf5xx_board_snd_device); + + return ret; +} + +static void __exit bf5xx_board_exit(void) +{ + platform_device_unregister(bf5xx_board_snd_device); +} + +module_init(bf5xx_board_init); +module_exit(bf5xx_board_exit); + +/* Module information */ +MODULE_AUTHOR("Cliff Cai"); +MODULE_DESCRIPTION("ALSA SoC AD1980/1 BF5xx board (Obsolete)"); +MODULE_LICENSE("GPL"); diff --git a/kernel/sound/soc/blackfin/bf5xx-ad73311.c b/kernel/sound/soc/blackfin/bf5xx-ad73311.c new file mode 100644 index 000000000..786bbdd96 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-ad73311.c @@ -0,0 +1,212 @@ +/* + * File: sound/soc/blackfin/bf5xx-ad73311.c + * Author: Cliff Cai <Cliff.Cai@analog.com> + * + * Created: Thur Sep 25 2008 + * Description: Board driver for ad73311 sound chip + * + * Modified: + * Copyright 2008 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/gpio.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include <asm/blackfin.h> +#include <asm/cacheflush.h> +#include <asm/irq.h> +#include <asm/dma.h> +#include <asm/portmux.h> + +#include "../codecs/ad73311.h" +#include "bf5xx-sport.h" + +#if CONFIG_SND_BF5XX_SPORT_NUM == 0 +#define bfin_write_SPORT_TCR1 bfin_write_SPORT0_TCR1 +#define bfin_read_SPORT_TCR1 bfin_read_SPORT0_TCR1 +#define bfin_write_SPORT_TCR2 bfin_write_SPORT0_TCR2 +#define bfin_write_SPORT_TX16 bfin_write_SPORT0_TX16 +#define bfin_read_SPORT_STAT bfin_read_SPORT0_STAT +#else +#define bfin_write_SPORT_TCR1 bfin_write_SPORT1_TCR1 +#define bfin_read_SPORT_TCR1 bfin_read_SPORT1_TCR1 +#define bfin_write_SPORT_TCR2 bfin_write_SPORT1_TCR2 +#define bfin_write_SPORT_TX16 bfin_write_SPORT1_TX16 +#define bfin_read_SPORT_STAT bfin_read_SPORT1_STAT +#endif + +#define GPIO_SE CONFIG_SND_BFIN_AD73311_SE + +static struct snd_soc_card bf5xx_ad73311; + +static int snd_ad73311_startup(void) +{ + pr_debug("%s enter\n", __func__); + + /* Pull up SE pin on AD73311L */ + gpio_set_value(GPIO_SE, 1); + return 0; +} + +static int snd_ad73311_configure(void) +{ + unsigned short ctrl_regs[6]; + unsigned short status = 0; + int count = 0; + + /* DMCLK = MCLK = 16.384 MHz + * SCLK = DMCLK/8 = 2.048 MHz + * Sample Rate = DMCLK/2048 = 8 KHz + */ + ctrl_regs[0] = AD_CONTROL | AD_WRITE | CTRL_REG_B | REGB_MCDIV(0) | \ + REGB_SCDIV(0) | REGB_DIRATE(0); + ctrl_regs[1] = AD_CONTROL | AD_WRITE | CTRL_REG_C | REGC_PUDEV | \ + REGC_PUADC | REGC_PUDAC | REGC_PUREF | REGC_REFUSE ; + ctrl_regs[2] = AD_CONTROL | AD_WRITE | CTRL_REG_D | REGD_OGS(2) | \ + REGD_IGS(2); + ctrl_regs[3] = AD_CONTROL | AD_WRITE | CTRL_REG_E | REGE_DA(0x1f); + ctrl_regs[4] = AD_CONTROL | AD_WRITE | CTRL_REG_F | REGF_SEEN ; + ctrl_regs[5] = AD_CONTROL | AD_WRITE | CTRL_REG_A | REGA_MODE_DATA; + + local_irq_disable(); + snd_ad73311_startup(); + udelay(1); + + bfin_write_SPORT_TCR1(TFSR); + bfin_write_SPORT_TCR2(0xF); + SSYNC(); + + /* SPORT Tx Register is a 8 x 16 FIFO, all the data can be put to + * FIFO before enable SPORT to transfer the data + */ + for (count = 0; count < 6; count++) + bfin_write_SPORT_TX16(ctrl_regs[count]); + SSYNC(); + bfin_write_SPORT_TCR1(bfin_read_SPORT_TCR1() | TSPEN); + SSYNC(); + + /* When TUVF is set, the data is already send out */ + while (!(status & TUVF) && ++count < 10000) { + udelay(1); + status = bfin_read_SPORT_STAT(); + SSYNC(); + } + bfin_write_SPORT_TCR1(bfin_read_SPORT_TCR1() & ~TSPEN); + SSYNC(); + local_irq_enable(); + + if (count >= 10000) { + printk(KERN_ERR "ad73311: failed to configure codec\n"); + return -1; + } + return 0; +} + +static int bf5xx_probe(struct snd_soc_card *card) +{ + int err; + if (gpio_request(GPIO_SE, "AD73311_SE")) { + printk(KERN_ERR "%s: Failed ro request GPIO_%d\n", __func__, GPIO_SE); + return -EBUSY; + } + + gpio_direction_output(GPIO_SE, 0); + + err = snd_ad73311_configure(); + if (err < 0) + return -EFAULT; + + return 0; +} + +#define BF5XX_AD7311_DAI_FMT (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | \ + SND_SOC_DAIFMT_CBM_CFM) + +static struct snd_soc_dai_link bf5xx_ad73311_dai[] = { + { + .name = "ad73311", + .stream_name = "AD73311", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "ad73311-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "ad73311", + .dai_fmt = BF5XX_AD7311_DAI_FMT, + }, + { + .name = "ad73311", + .stream_name = "AD73311", + .cpu_dai_name = "bfin-i2s.1", + .codec_dai_name = "ad73311-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "ad73311", + .dai_fmt = BF5XX_AD7311_DAI_FMT, + }, +}; + +static struct snd_soc_card bf5xx_ad73311 = { + .name = "bfin-ad73311", + .owner = THIS_MODULE, + .probe = bf5xx_probe, + .dai_link = &bf5xx_ad73311_dai[CONFIG_SND_BF5XX_SPORT_NUM], + .num_links = 1, +}; + +static struct platform_device *bf5xx_ad73311_snd_device; + +static int __init bf5xx_ad73311_init(void) +{ + int ret; + + pr_debug("%s enter\n", __func__); + bf5xx_ad73311_snd_device = platform_device_alloc("soc-audio", -1); + if (!bf5xx_ad73311_snd_device) + return -ENOMEM; + + platform_set_drvdata(bf5xx_ad73311_snd_device, &bf5xx_ad73311); + ret = platform_device_add(bf5xx_ad73311_snd_device); + + if (ret) + platform_device_put(bf5xx_ad73311_snd_device); + + return ret; +} + +static void __exit bf5xx_ad73311_exit(void) +{ + pr_debug("%s enter\n", __func__); + platform_device_unregister(bf5xx_ad73311_snd_device); +} + +module_init(bf5xx_ad73311_init); +module_exit(bf5xx_ad73311_exit); + +/* Module information */ +MODULE_AUTHOR("Cliff Cai"); +MODULE_DESCRIPTION("ALSA SoC AD73311 Blackfin"); +MODULE_LICENSE("GPL"); + diff --git a/kernel/sound/soc/blackfin/bf5xx-i2s-pcm.c b/kernel/sound/soc/blackfin/bf5xx-i2s-pcm.c new file mode 100644 index 000000000..d95477afc --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-i2s-pcm.c @@ -0,0 +1,367 @@ +/* + * File: sound/soc/blackfin/bf5xx-i2s-pcm.c + * Author: Cliff Cai <Cliff.Cai@analog.com> + * + * Created: Tue June 06 2008 + * Description: DMA driver for i2s codec + * + * Modified: + * Copyright 2008 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/gfp.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <asm/dma.h> + +#include "bf5xx-sport.h" +#include "bf5xx-i2s-pcm.h" + +static void bf5xx_dma_irq(void *data) +{ + struct snd_pcm_substream *pcm = data; + snd_pcm_period_elapsed(pcm); +} + +static const struct snd_pcm_hardware bf5xx_pcm_hardware = { + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BLOCK_TRANSFER, + .period_bytes_min = 32, + .period_bytes_max = 0x10000, + .periods_min = 1, + .periods_max = PAGE_SIZE/32, + .buffer_bytes_max = 0x20000, /* 128 kbytes */ + .fifo_size = 16, +}; + +static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + unsigned int buffer_size = params_buffer_bytes(params); + struct bf5xx_i2s_pcm_data *dma_data; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + if (dma_data->tdm_mode) + buffer_size = buffer_size / params_channels(params) * 8; + + return snd_pcm_lib_malloc_pages(substream, buffer_size); +} + +static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream) +{ + snd_pcm_lib_free_pages(substream); + + return 0; +} + +static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + int period_bytes = frames_to_bytes(runtime, runtime->period_size); + struct bf5xx_i2s_pcm_data *dma_data; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + if (dma_data->tdm_mode) + period_bytes = period_bytes / runtime->channels * 8; + + pr_debug("%s enter\n", __func__); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + sport_set_tx_callback(sport, bf5xx_dma_irq, substream); + sport_config_tx_dma(sport, runtime->dma_area, + runtime->periods, period_bytes); + } else { + sport_set_rx_callback(sport, bf5xx_dma_irq, substream); + sport_config_rx_dma(sport, runtime->dma_area, + runtime->periods, period_bytes); + } + + return 0; +} + +static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + int ret = 0; + + pr_debug("%s enter\n", __func__); + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + sport_tx_start(sport); + else + sport_rx_start(sport); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + sport_tx_stop(sport); + else + sport_rx_stop(sport); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + unsigned int diff; + snd_pcm_uframes_t frames; + struct bf5xx_i2s_pcm_data *dma_data; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + pr_debug("%s enter\n", __func__); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + diff = sport_curr_offset_tx(sport); + } else { + diff = sport_curr_offset_rx(sport); + } + + /* + * TX at least can report one frame beyond the end of the + * buffer if we hit the wraparound case - clamp to within the + * buffer as the ALSA APIs require. + */ + if (diff == snd_pcm_lib_buffer_bytes(substream)) + diff = 0; + + frames = bytes_to_frames(substream->runtime, diff); + if (dma_data->tdm_mode) + frames = frames * runtime->channels / 8; + + return frames; +} + +static int bf5xx_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai); + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_dma_buffer *buf = &substream->dma_buffer; + struct bf5xx_i2s_pcm_data *dma_data; + int ret; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + pr_debug("%s enter\n", __func__); + + snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware); + if (dma_data->tdm_mode) + runtime->hw.buffer_bytes_max /= 4; + else + runtime->hw.info |= SNDRV_PCM_INFO_MMAP; + + ret = snd_pcm_hw_constraint_integer(runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) + goto out; + + if (sport_handle != NULL) { + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + sport_handle->tx_buf = buf->area; + else + sport_handle->rx_buf = buf->area; + + runtime->private_data = sport_handle; + } else { + pr_err("sport_handle is NULL\n"); + return -1; + } + return 0; + + out: + return ret; +} + +static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + size_t size = vma->vm_end - vma->vm_start; + vma->vm_start = (unsigned long)runtime->dma_area; + vma->vm_end = vma->vm_start + size; + vma->vm_flags |= VM_SHARED; + + return 0 ; +} + +static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel, + snd_pcm_uframes_t pos, void *buf, snd_pcm_uframes_t count) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + unsigned int sample_size = runtime->sample_bits / 8; + struct bf5xx_i2s_pcm_data *dma_data; + unsigned int i; + void *src, *dst; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + if (dma_data->tdm_mode) { + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + src = buf; + dst = runtime->dma_area; + dst += pos * sample_size * 8; + + while (count--) { + for (i = 0; i < runtime->channels; i++) { + memcpy(dst + dma_data->map[i] * + sample_size, src, sample_size); + src += sample_size; + } + dst += 8 * sample_size; + } + } else { + src = runtime->dma_area; + src += pos * sample_size * 8; + dst = buf; + + while (count--) { + for (i = 0; i < runtime->channels; i++) { + memcpy(dst, src + dma_data->map[i] * + sample_size, sample_size); + dst += sample_size; + } + src += 8 * sample_size; + } + } + } else { + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + src = buf; + dst = runtime->dma_area; + dst += frames_to_bytes(runtime, pos); + } else { + src = runtime->dma_area; + src += frames_to_bytes(runtime, pos); + dst = buf; + } + + memcpy(dst, src, frames_to_bytes(runtime, count)); + } + + return 0; +} + +static int bf5xx_pcm_silence(struct snd_pcm_substream *substream, + int channel, snd_pcm_uframes_t pos, snd_pcm_uframes_t count) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + unsigned int sample_size = runtime->sample_bits / 8; + void *buf = runtime->dma_area; + struct bf5xx_i2s_pcm_data *dma_data; + unsigned int offset, samples; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + if (dma_data->tdm_mode) { + offset = pos * 8 * sample_size; + samples = count * 8; + } else { + offset = frames_to_bytes(runtime, pos); + samples = count * runtime->channels; + } + + snd_pcm_format_set_silence(runtime->format, buf + offset, samples); + + return 0; +} + +static struct snd_pcm_ops bf5xx_pcm_i2s_ops = { + .open = bf5xx_pcm_open, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = bf5xx_pcm_hw_params, + .hw_free = bf5xx_pcm_hw_free, + .prepare = bf5xx_pcm_prepare, + .trigger = bf5xx_pcm_trigger, + .pointer = bf5xx_pcm_pointer, + .mmap = bf5xx_pcm_mmap, + .copy = bf5xx_pcm_copy, + .silence = bf5xx_pcm_silence, +}; + +static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_card *card = rtd->card->snd_card; + size_t size = bf5xx_pcm_hardware.buffer_bytes_max; + int ret; + + pr_debug("%s enter\n", __func__); + ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + return snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, + SNDRV_DMA_TYPE_DEV, card->dev, size, size); +} + +static struct snd_soc_platform_driver bf5xx_i2s_soc_platform = { + .ops = &bf5xx_pcm_i2s_ops, + .pcm_new = bf5xx_pcm_i2s_new, +}; + +static int bfin_i2s_soc_platform_probe(struct platform_device *pdev) +{ + return snd_soc_register_platform(&pdev->dev, &bf5xx_i2s_soc_platform); +} + +static int bfin_i2s_soc_platform_remove(struct platform_device *pdev) +{ + snd_soc_unregister_platform(&pdev->dev); + return 0; +} + +static struct platform_driver bfin_i2s_pcm_driver = { + .driver = { + .name = "bfin-i2s-pcm-audio", + }, + + .probe = bfin_i2s_soc_platform_probe, + .remove = bfin_i2s_soc_platform_remove, +}; + +module_platform_driver(bfin_i2s_pcm_driver); + +MODULE_AUTHOR("Cliff Cai"); +MODULE_DESCRIPTION("ADI Blackfin I2S PCM DMA module"); +MODULE_LICENSE("GPL"); diff --git a/kernel/sound/soc/blackfin/bf5xx-i2s-pcm.h b/kernel/sound/soc/blackfin/bf5xx-i2s-pcm.h new file mode 100644 index 000000000..1f0435249 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-i2s-pcm.h @@ -0,0 +1,17 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _BF5XX_TDM_PCM_H +#define _BF5XX_TDM_PCM_H + +#define BFIN_TDM_DAI_MAX_SLOTS 8 + +struct bf5xx_i2s_pcm_data { + unsigned int map[BFIN_TDM_DAI_MAX_SLOTS]; + bool tdm_mode; +}; + +#endif diff --git a/kernel/sound/soc/blackfin/bf5xx-i2s.c b/kernel/sound/soc/blackfin/bf5xx-i2s.c new file mode 100644 index 000000000..b69aeef64 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-i2s.c @@ -0,0 +1,391 @@ +/* + * File: sound/soc/blackfin/bf5xx-i2s.c + * Author: Cliff Cai <Cliff.Cai@analog.com> + * + * Created: Tue June 06 2008 + * Description: Blackfin I2S CPU DAI driver + * + * Modified: + * Copyright 2008 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> +#include <sound/soc.h> + +#include <asm/irq.h> +#include <asm/portmux.h> +#include <linux/mutex.h> +#include <linux/gpio.h> + +#include "bf5xx-sport.h" +#include "bf5xx-i2s-pcm.h" + +struct bf5xx_i2s_port { + u16 tcr1; + u16 rcr1; + u16 tcr2; + u16 rcr2; + int configured; + + unsigned int slots; + unsigned int tx_mask; + unsigned int rx_mask; + + struct bf5xx_i2s_pcm_data tx_dma_data; + struct bf5xx_i2s_pcm_data rx_dma_data; +}; + +static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai, + unsigned int fmt) +{ + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai); + struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; + int ret = 0; + + /* interface format:support I2S,slave mode */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + bf5xx_i2s->tcr1 |= TFSR | TCKFE; + bf5xx_i2s->rcr1 |= RFSR | RCKFE; + bf5xx_i2s->tcr2 |= TSFSE; + bf5xx_i2s->rcr2 |= RSFSE; + break; + case SND_SOC_DAIFMT_DSP_A: + bf5xx_i2s->tcr1 |= TFSR; + bf5xx_i2s->rcr1 |= RFSR; + break; + case SND_SOC_DAIFMT_LEFT_J: + ret = -EINVAL; + break; + default: + dev_err(cpu_dai->dev, "%s: Unknown DAI format type\n", + __func__); + ret = -EINVAL; + break; + } + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + break; + case SND_SOC_DAIFMT_CBS_CFS: + case SND_SOC_DAIFMT_CBM_CFS: + case SND_SOC_DAIFMT_CBS_CFM: + ret = -EINVAL; + break; + default: + dev_err(cpu_dai->dev, "%s: Unknown DAI master type\n", + __func__); + ret = -EINVAL; + break; + } + + return ret; +} + +static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); + struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; + int ret = 0; + + bf5xx_i2s->tcr2 &= ~0x1f; + bf5xx_i2s->rcr2 &= ~0x1f; + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S8: + bf5xx_i2s->tcr2 |= 7; + bf5xx_i2s->rcr2 |= 7; + sport_handle->wdsize = 1; + break; + case SNDRV_PCM_FORMAT_S16_LE: + bf5xx_i2s->tcr2 |= 15; + bf5xx_i2s->rcr2 |= 15; + sport_handle->wdsize = 2; + break; + case SNDRV_PCM_FORMAT_S24_LE: + bf5xx_i2s->tcr2 |= 23; + bf5xx_i2s->rcr2 |= 23; + sport_handle->wdsize = 3; + break; + case SNDRV_PCM_FORMAT_S32_LE: + bf5xx_i2s->tcr2 |= 31; + bf5xx_i2s->rcr2 |= 31; + sport_handle->wdsize = 4; + break; + } + + if (!bf5xx_i2s->configured) { + /* + * TX and RX are not independent,they are enabled at the + * same time, even if only one side is running. So, we + * need to configure both of them at the time when the first + * stream is opened. + * + * CPU DAI:slave mode. + */ + bf5xx_i2s->configured = 1; + ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1, + bf5xx_i2s->rcr2, 0, 0); + if (ret) { + dev_err(dai->dev, "SPORT is busy!\n"); + return -EBUSY; + } + + ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1, + bf5xx_i2s->tcr2, 0, 0); + if (ret) { + dev_err(dai->dev, "SPORT is busy!\n"); + return -EBUSY; + } + } + + return 0; +} + +static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); + struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; + + dev_dbg(dai->dev, "%s enter\n", __func__); + /* No active stream, SPORT is allowed to be configured again. */ + if (!dai->active) + bf5xx_i2s->configured = 0; +} + +static int bf5xx_i2s_set_channel_map(struct snd_soc_dai *dai, + unsigned int tx_num, unsigned int *tx_slot, + unsigned int rx_num, unsigned int *rx_slot) +{ + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); + struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; + unsigned int tx_mapped = 0, rx_mapped = 0; + unsigned int slot; + int i; + + if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) || + (rx_num > BFIN_TDM_DAI_MAX_SLOTS)) + return -EINVAL; + + for (i = 0; i < tx_num; i++) { + slot = tx_slot[i]; + if ((slot < BFIN_TDM_DAI_MAX_SLOTS) && + (!(tx_mapped & (1 << slot)))) { + bf5xx_i2s->tx_dma_data.map[i] = slot; + tx_mapped |= 1 << slot; + } else + return -EINVAL; + } + for (i = 0; i < rx_num; i++) { + slot = rx_slot[i]; + if ((slot < BFIN_TDM_DAI_MAX_SLOTS) && + (!(rx_mapped & (1 << slot)))) { + bf5xx_i2s->rx_dma_data.map[i] = slot; + rx_mapped |= 1 << slot; + } else + return -EINVAL; + } + + return 0; +} + +static int bf5xx_i2s_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, + unsigned int rx_mask, int slots, int width) +{ + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); + struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; + + if (slots % 8 != 0 || slots > 8) + return -EINVAL; + + if (width != 32) + return -EINVAL; + + bf5xx_i2s->slots = slots; + bf5xx_i2s->tx_mask = tx_mask; + bf5xx_i2s->rx_mask = rx_mask; + + bf5xx_i2s->tx_dma_data.tdm_mode = slots != 0; + bf5xx_i2s->rx_dma_data.tdm_mode = slots != 0; + + return sport_set_multichannel(sport_handle, slots, tx_mask, rx_mask, 0); +} + +#ifdef CONFIG_PM +static int bf5xx_i2s_suspend(struct snd_soc_dai *dai) +{ + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); + + dev_dbg(dai->dev, "%s : sport %d\n", __func__, dai->id); + + if (dai->capture_active) + sport_rx_stop(sport_handle); + if (dai->playback_active) + sport_tx_stop(sport_handle); + return 0; +} + +static int bf5xx_i2s_resume(struct snd_soc_dai *dai) +{ + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); + struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; + int ret; + + dev_dbg(dai->dev, "%s : sport %d\n", __func__, dai->id); + + ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1, + bf5xx_i2s->rcr2, 0, 0); + if (ret) { + dev_err(dai->dev, "SPORT is busy!\n"); + return -EBUSY; + } + + ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1, + bf5xx_i2s->tcr2, 0, 0); + if (ret) { + dev_err(dai->dev, "SPORT is busy!\n"); + return -EBUSY; + } + + return sport_set_multichannel(sport_handle, bf5xx_i2s->slots, + bf5xx_i2s->tx_mask, bf5xx_i2s->rx_mask, 0); +} + +#else +#define bf5xx_i2s_suspend NULL +#define bf5xx_i2s_resume NULL +#endif + +static int bf5xx_i2s_dai_probe(struct snd_soc_dai *dai) +{ + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); + struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; + unsigned int i; + + for (i = 0; i < BFIN_TDM_DAI_MAX_SLOTS; i++) { + bf5xx_i2s->tx_dma_data.map[i] = i; + bf5xx_i2s->rx_dma_data.map[i] = i; + } + + dai->playback_dma_data = &bf5xx_i2s->tx_dma_data; + dai->capture_dma_data = &bf5xx_i2s->rx_dma_data; + + return 0; +} + +#define BF5XX_I2S_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ + SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \ + SNDRV_PCM_RATE_96000) + +#define BF5XX_I2S_FORMATS \ + (SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) + +static const struct snd_soc_dai_ops bf5xx_i2s_dai_ops = { + .shutdown = bf5xx_i2s_shutdown, + .hw_params = bf5xx_i2s_hw_params, + .set_fmt = bf5xx_i2s_set_dai_fmt, + .set_tdm_slot = bf5xx_i2s_set_tdm_slot, + .set_channel_map = bf5xx_i2s_set_channel_map, +}; + +static struct snd_soc_dai_driver bf5xx_i2s_dai = { + .probe = bf5xx_i2s_dai_probe, + .suspend = bf5xx_i2s_suspend, + .resume = bf5xx_i2s_resume, + .playback = { + .channels_min = 2, + .channels_max = 8, + .rates = BF5XX_I2S_RATES, + .formats = BF5XX_I2S_FORMATS,}, + .capture = { + .channels_min = 2, + .channels_max = 8, + .rates = BF5XX_I2S_RATES, + .formats = BF5XX_I2S_FORMATS,}, + .ops = &bf5xx_i2s_dai_ops, +}; + +static const struct snd_soc_component_driver bf5xx_i2s_component = { + .name = "bf5xx-i2s", +}; + +static int bf5xx_i2s_probe(struct platform_device *pdev) +{ + struct sport_device *sport_handle; + int ret; + + /* configure SPORT for I2S */ + sport_handle = sport_init(pdev, 4, 8 * sizeof(u32), + sizeof(struct bf5xx_i2s_port)); + if (!sport_handle) + return -ENODEV; + + /* register with the ASoC layers */ + ret = snd_soc_register_component(&pdev->dev, &bf5xx_i2s_component, + &bf5xx_i2s_dai, 1); + if (ret) { + dev_err(&pdev->dev, "Failed to register DAI: %d\n", ret); + sport_done(sport_handle); + return ret; + } + + return 0; +} + +static int bf5xx_i2s_remove(struct platform_device *pdev) +{ + struct sport_device *sport_handle = platform_get_drvdata(pdev); + + dev_dbg(&pdev->dev, "%s enter\n", __func__); + + snd_soc_unregister_component(&pdev->dev); + sport_done(sport_handle); + + return 0; +} + +static struct platform_driver bfin_i2s_driver = { + .probe = bf5xx_i2s_probe, + .remove = bf5xx_i2s_remove, + .driver = { + .name = "bfin-i2s", + }, +}; + +module_platform_driver(bfin_i2s_driver); + +/* Module information */ +MODULE_AUTHOR("Cliff Cai"); +MODULE_DESCRIPTION("I2S driver for ADI Blackfin"); +MODULE_LICENSE("GPL"); + diff --git a/kernel/sound/soc/blackfin/bf5xx-sport.c b/kernel/sound/soc/blackfin/bf5xx-sport.c new file mode 100644 index 000000000..9dfa1241e --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-sport.c @@ -0,0 +1,1102 @@ +/* + * File: bf5xx_sport.c + * Based on: + * Author: Roy Huang <roy.huang@analog.com> + * + * Created: Tue Sep 21 10:52:42 CEST 2004 + * Description: + * Blackfin SPORT Driver + * + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/gpio.h> +#include <linux/bug.h> +#include <linux/module.h> +#include <asm/portmux.h> +#include <asm/dma.h> +#include <asm/blackfin.h> +#include <asm/cacheflush.h> + +#include "bf5xx-sport.h" +/* delay between frame sync pulse and first data bit in multichannel mode */ +#define FRAME_DELAY (1<<12) + +/* note: multichannel is in units of 8 channels, + * tdm_count is # channels NOT / 8 ! */ +int sport_set_multichannel(struct sport_device *sport, + int tdm_count, u32 tx_mask, u32 rx_mask, int packed) +{ + pr_debug("%s tdm_count=%d tx_mask:0x%08x rx_mask:0x%08x packed=%d\n", + __func__, tdm_count, tx_mask, rx_mask, packed); + + if ((sport->regs->tcr1 & TSPEN) || (sport->regs->rcr1 & RSPEN)) + return -EBUSY; + + if (tdm_count & 0x7) + return -EINVAL; + + if (tdm_count > 32) + return -EINVAL; /* Only support less than 32 channels now */ + + if (tdm_count) { + sport->regs->mcmc1 = ((tdm_count>>3)-1) << 12; + sport->regs->mcmc2 = FRAME_DELAY | MCMEN | \ + (packed ? (MCDTXPE|MCDRXPE) : 0); + + sport->regs->mtcs0 = tx_mask; + sport->regs->mrcs0 = rx_mask; + sport->regs->mtcs1 = 0; + sport->regs->mrcs1 = 0; + sport->regs->mtcs2 = 0; + sport->regs->mrcs2 = 0; + sport->regs->mtcs3 = 0; + sport->regs->mrcs3 = 0; + } else { + sport->regs->mcmc1 = 0; + sport->regs->mcmc2 = 0; + + sport->regs->mtcs0 = 0; + sport->regs->mrcs0 = 0; + } + + sport->regs->mtcs1 = 0; sport->regs->mtcs2 = 0; sport->regs->mtcs3 = 0; + sport->regs->mrcs1 = 0; sport->regs->mrcs2 = 0; sport->regs->mrcs3 = 0; + + SSYNC(); + + return 0; +} +EXPORT_SYMBOL(sport_set_multichannel); + +int sport_config_rx(struct sport_device *sport, unsigned int rcr1, + unsigned int rcr2, unsigned int clkdiv, unsigned int fsdiv) +{ + if ((sport->regs->tcr1 & TSPEN) || (sport->regs->rcr1 & RSPEN)) + return -EBUSY; + + sport->regs->rcr1 = rcr1; + sport->regs->rcr2 = rcr2; + sport->regs->rclkdiv = clkdiv; + sport->regs->rfsdiv = fsdiv; + + SSYNC(); + + return 0; +} +EXPORT_SYMBOL(sport_config_rx); + +int sport_config_tx(struct sport_device *sport, unsigned int tcr1, + unsigned int tcr2, unsigned int clkdiv, unsigned int fsdiv) +{ + if ((sport->regs->tcr1 & TSPEN) || (sport->regs->rcr1 & RSPEN)) + return -EBUSY; + + sport->regs->tcr1 = tcr1; + sport->regs->tcr2 = tcr2; + sport->regs->tclkdiv = clkdiv; + sport->regs->tfsdiv = fsdiv; + + SSYNC(); + + return 0; +} +EXPORT_SYMBOL(sport_config_tx); + +static void setup_desc(struct dmasg *desc, void *buf, int fragcount, + size_t fragsize, unsigned int cfg, + unsigned int x_count, unsigned int ycount, size_t wdsize) +{ + + int i; + + for (i = 0; i < fragcount; ++i) { + desc[i].next_desc_addr = &(desc[i + 1]); + desc[i].start_addr = (unsigned long)buf + i*fragsize; + desc[i].cfg = cfg; + desc[i].x_count = x_count; + desc[i].x_modify = wdsize; + desc[i].y_count = ycount; + desc[i].y_modify = wdsize; + } + + /* make circular */ + desc[fragcount-1].next_desc_addr = desc; + + pr_debug("setup desc: desc0=%p, next0=%p, desc1=%p," + "next1=%p\nx_count=%x,y_count=%x,addr=0x%lx,cfs=0x%x\n", + desc, desc[0].next_desc_addr, + desc+1, desc[1].next_desc_addr, + desc[0].x_count, desc[0].y_count, + desc[0].start_addr, desc[0].cfg); +} + +static int sport_start(struct sport_device *sport) +{ + enable_dma(sport->dma_rx_chan); + enable_dma(sport->dma_tx_chan); + sport->regs->rcr1 |= RSPEN; + sport->regs->tcr1 |= TSPEN; + SSYNC(); + + return 0; +} + +static int sport_stop(struct sport_device *sport) +{ + sport->regs->tcr1 &= ~TSPEN; + sport->regs->rcr1 &= ~RSPEN; + SSYNC(); + + disable_dma(sport->dma_rx_chan); + disable_dma(sport->dma_tx_chan); + return 0; +} + +static inline int sport_hook_rx_dummy(struct sport_device *sport) +{ + struct dmasg *desc, temp_desc; + unsigned long flags; + + if (WARN_ON(!sport->dummy_rx_desc) || + WARN_ON(sport->curr_rx_desc == sport->dummy_rx_desc)) + return -EINVAL; + + /* Maybe the dummy buffer descriptor ring is damaged */ + sport->dummy_rx_desc->next_desc_addr = sport->dummy_rx_desc + 1; + + local_irq_save(flags); + desc = get_dma_next_desc_ptr(sport->dma_rx_chan); + /* Copy the descriptor which will be damaged to backup */ + temp_desc = *desc; + desc->x_count = sport->dummy_count / 2; + desc->y_count = 0; + desc->next_desc_addr = sport->dummy_rx_desc; + local_irq_restore(flags); + /* Waiting for dummy buffer descriptor is already hooked*/ + while ((get_dma_curr_desc_ptr(sport->dma_rx_chan) - + sizeof(struct dmasg)) != sport->dummy_rx_desc) + continue; + sport->curr_rx_desc = sport->dummy_rx_desc; + /* Restore the damaged descriptor */ + *desc = temp_desc; + + return 0; +} + +static inline int sport_rx_dma_start(struct sport_device *sport, int dummy) +{ + if (dummy) { + sport->dummy_rx_desc->next_desc_addr = sport->dummy_rx_desc; + sport->curr_rx_desc = sport->dummy_rx_desc; + } else + sport->curr_rx_desc = sport->dma_rx_desc; + + set_dma_next_desc_addr(sport->dma_rx_chan, sport->curr_rx_desc); + set_dma_x_count(sport->dma_rx_chan, 0); + set_dma_x_modify(sport->dma_rx_chan, 0); + set_dma_config(sport->dma_rx_chan, (DMAFLOW_LARGE | NDSIZE_9 | \ + WDSIZE_32 | WNR)); + set_dma_curr_addr(sport->dma_rx_chan, sport->curr_rx_desc->start_addr); + SSYNC(); + + return 0; +} + +static inline int sport_tx_dma_start(struct sport_device *sport, int dummy) +{ + if (dummy) { + sport->dummy_tx_desc->next_desc_addr = sport->dummy_tx_desc; + sport->curr_tx_desc = sport->dummy_tx_desc; + } else + sport->curr_tx_desc = sport->dma_tx_desc; + + set_dma_next_desc_addr(sport->dma_tx_chan, sport->curr_tx_desc); + set_dma_x_count(sport->dma_tx_chan, 0); + set_dma_x_modify(sport->dma_tx_chan, 0); + set_dma_config(sport->dma_tx_chan, + (DMAFLOW_LARGE | NDSIZE_9 | WDSIZE_32)); + set_dma_curr_addr(sport->dma_tx_chan, sport->curr_tx_desc->start_addr); + SSYNC(); + + return 0; +} + +int sport_rx_start(struct sport_device *sport) +{ + unsigned long flags; + pr_debug("%s enter\n", __func__); + if (sport->rx_run) + return -EBUSY; + if (sport->tx_run) { + /* tx is running, rx is not running */ + if (WARN_ON(!sport->dma_rx_desc) || + WARN_ON(sport->curr_rx_desc != sport->dummy_rx_desc)) + return -EINVAL; + local_irq_save(flags); + while ((get_dma_curr_desc_ptr(sport->dma_rx_chan) - + sizeof(struct dmasg)) != sport->dummy_rx_desc) + continue; + sport->dummy_rx_desc->next_desc_addr = sport->dma_rx_desc; + local_irq_restore(flags); + sport->curr_rx_desc = sport->dma_rx_desc; + } else { + sport_tx_dma_start(sport, 1); + sport_rx_dma_start(sport, 0); + sport_start(sport); + } + + sport->rx_run = 1; + + return 0; +} +EXPORT_SYMBOL(sport_rx_start); + +int sport_rx_stop(struct sport_device *sport) +{ + pr_debug("%s enter\n", __func__); + + if (!sport->rx_run) + return 0; + if (sport->tx_run) { + /* TX dma is still running, hook the dummy buffer */ + sport_hook_rx_dummy(sport); + } else { + /* Both rx and tx dma will be stopped */ + sport_stop(sport); + sport->curr_rx_desc = NULL; + sport->curr_tx_desc = NULL; + } + + sport->rx_run = 0; + + return 0; +} +EXPORT_SYMBOL(sport_rx_stop); + +static inline int sport_hook_tx_dummy(struct sport_device *sport) +{ + struct dmasg *desc, temp_desc; + unsigned long flags; + + if (WARN_ON(!sport->dummy_tx_desc) || + WARN_ON(sport->curr_tx_desc == sport->dummy_tx_desc)) + return -EINVAL; + + sport->dummy_tx_desc->next_desc_addr = sport->dummy_tx_desc + 1; + + /* Shorten the time on last normal descriptor */ + local_irq_save(flags); + desc = get_dma_next_desc_ptr(sport->dma_tx_chan); + /* Store the descriptor which will be damaged */ + temp_desc = *desc; + desc->x_count = sport->dummy_count / 2; + desc->y_count = 0; + desc->next_desc_addr = sport->dummy_tx_desc; + local_irq_restore(flags); + /* Waiting for dummy buffer descriptor is already hooked*/ + while ((get_dma_curr_desc_ptr(sport->dma_tx_chan) - \ + sizeof(struct dmasg)) != sport->dummy_tx_desc) + continue; + sport->curr_tx_desc = sport->dummy_tx_desc; + /* Restore the damaged descriptor */ + *desc = temp_desc; + + return 0; +} + +int sport_tx_start(struct sport_device *sport) +{ + unsigned long flags; + pr_debug("%s: tx_run:%d, rx_run:%d\n", __func__, + sport->tx_run, sport->rx_run); + if (sport->tx_run) + return -EBUSY; + if (sport->rx_run) { + if (WARN_ON(!sport->dma_tx_desc) || + WARN_ON(sport->curr_tx_desc != sport->dummy_tx_desc)) + return -EINVAL; + /* Hook the normal buffer descriptor */ + local_irq_save(flags); + while ((get_dma_curr_desc_ptr(sport->dma_tx_chan) - + sizeof(struct dmasg)) != sport->dummy_tx_desc) + continue; + sport->dummy_tx_desc->next_desc_addr = sport->dma_tx_desc; + local_irq_restore(flags); + sport->curr_tx_desc = sport->dma_tx_desc; + } else { + + sport_tx_dma_start(sport, 0); + /* Let rx dma run the dummy buffer */ + sport_rx_dma_start(sport, 1); + sport_start(sport); + } + sport->tx_run = 1; + return 0; +} +EXPORT_SYMBOL(sport_tx_start); + +int sport_tx_stop(struct sport_device *sport) +{ + if (!sport->tx_run) + return 0; + if (sport->rx_run) { + /* RX is still running, hook the dummy buffer */ + sport_hook_tx_dummy(sport); + } else { + /* Both rx and tx dma stopped */ + sport_stop(sport); + sport->curr_rx_desc = NULL; + sport->curr_tx_desc = NULL; + } + + sport->tx_run = 0; + + return 0; +} +EXPORT_SYMBOL(sport_tx_stop); + +static inline int compute_wdsize(size_t wdsize) +{ + switch (wdsize) { + case 1: + return WDSIZE_8; + case 2: + return WDSIZE_16; + case 4: + default: + return WDSIZE_32; + } +} + +int sport_config_rx_dma(struct sport_device *sport, void *buf, + int fragcount, size_t fragsize) +{ + unsigned int x_count; + unsigned int y_count; + unsigned int cfg; + dma_addr_t addr; + + pr_debug("%s buf:%p, frag:%d, fragsize:0x%lx\n", __func__, \ + buf, fragcount, fragsize); + + x_count = fragsize / sport->wdsize; + y_count = 0; + + /* for fragments larger than 64k words we use 2d dma, + * denote fragecount as two numbers' mutliply and both of them + * are less than 64k.*/ + if (x_count >= 0x10000) { + int i, count = x_count; + + for (i = 16; i > 0; i--) { + x_count = 1 << i; + if ((count & (x_count - 1)) == 0) { + y_count = count >> i; + if (y_count < 0x10000) + break; + } + } + if (i == 0) + return -EINVAL; + } + pr_debug("%s(x_count:0x%x, y_count:0x%x)\n", __func__, + x_count, y_count); + + if (sport->dma_rx_desc) + dma_free_coherent(NULL, sport->rx_desc_bytes, + sport->dma_rx_desc, 0); + + /* Allocate a new descritor ring as current one. */ + sport->dma_rx_desc = dma_alloc_coherent(NULL, \ + fragcount * sizeof(struct dmasg), &addr, 0); + sport->rx_desc_bytes = fragcount * sizeof(struct dmasg); + + if (!sport->dma_rx_desc) { + pr_err("Failed to allocate memory for rx desc\n"); + return -ENOMEM; + } + + sport->rx_buf = buf; + sport->rx_fragsize = fragsize; + sport->rx_frags = fragcount; + + cfg = 0x7000 | DI_EN | compute_wdsize(sport->wdsize) | WNR | \ + (DESC_ELEMENT_COUNT << 8); /* large descriptor mode */ + + if (y_count != 0) + cfg |= DMA2D; + + setup_desc(sport->dma_rx_desc, buf, fragcount, fragsize, + cfg|DMAEN, x_count, y_count, sport->wdsize); + + return 0; +} +EXPORT_SYMBOL(sport_config_rx_dma); + +int sport_config_tx_dma(struct sport_device *sport, void *buf, \ + int fragcount, size_t fragsize) +{ + unsigned int x_count; + unsigned int y_count; + unsigned int cfg; + dma_addr_t addr; + + pr_debug("%s buf:%p, fragcount:%d, fragsize:0x%lx\n", + __func__, buf, fragcount, fragsize); + + x_count = fragsize/sport->wdsize; + y_count = 0; + + /* for fragments larger than 64k words we use 2d dma, + * denote fragecount as two numbers' mutliply and both of them + * are less than 64k.*/ + if (x_count >= 0x10000) { + int i, count = x_count; + + for (i = 16; i > 0; i--) { + x_count = 1 << i; + if ((count & (x_count - 1)) == 0) { + y_count = count >> i; + if (y_count < 0x10000) + break; + } + } + if (i == 0) + return -EINVAL; + } + pr_debug("%s x_count:0x%x, y_count:0x%x\n", __func__, + x_count, y_count); + + + if (sport->dma_tx_desc) { + dma_free_coherent(NULL, sport->tx_desc_bytes, \ + sport->dma_tx_desc, 0); + } + + sport->dma_tx_desc = dma_alloc_coherent(NULL, \ + fragcount * sizeof(struct dmasg), &addr, 0); + sport->tx_desc_bytes = fragcount * sizeof(struct dmasg); + if (!sport->dma_tx_desc) { + pr_err("Failed to allocate memory for tx desc\n"); + return -ENOMEM; + } + + sport->tx_buf = buf; + sport->tx_fragsize = fragsize; + sport->tx_frags = fragcount; + cfg = 0x7000 | DI_EN | compute_wdsize(sport->wdsize) | \ + (DESC_ELEMENT_COUNT << 8); /* large descriptor mode */ + + if (y_count != 0) + cfg |= DMA2D; + + setup_desc(sport->dma_tx_desc, buf, fragcount, fragsize, + cfg|DMAEN, x_count, y_count, sport->wdsize); + + return 0; +} +EXPORT_SYMBOL(sport_config_tx_dma); + +/* setup dummy dma descriptor ring, which don't generate interrupts, + * the x_modify is set to 0 */ +static int sport_config_rx_dummy(struct sport_device *sport) +{ + struct dmasg *desc; + unsigned config; + + pr_debug("%s entered\n", __func__); + if (L1_DATA_A_LENGTH) + desc = l1_data_sram_zalloc(2 * sizeof(*desc)); + else { + dma_addr_t addr; + desc = dma_alloc_coherent(NULL, 2 * sizeof(*desc), &addr, 0); + memset(desc, 0, 2 * sizeof(*desc)); + } + if (desc == NULL) { + pr_err("Failed to allocate memory for dummy rx desc\n"); + return -ENOMEM; + } + sport->dummy_rx_desc = desc; + desc->start_addr = (unsigned long)sport->dummy_buf; + config = DMAFLOW_LARGE | NDSIZE_9 | compute_wdsize(sport->wdsize) + | WNR | DMAEN; + desc->cfg = config; + desc->x_count = sport->dummy_count/sport->wdsize; + desc->x_modify = sport->wdsize; + desc->y_count = 0; + desc->y_modify = 0; + memcpy(desc+1, desc, sizeof(*desc)); + desc->next_desc_addr = desc + 1; + desc[1].next_desc_addr = desc; + return 0; +} + +static int sport_config_tx_dummy(struct sport_device *sport) +{ + struct dmasg *desc; + unsigned int config; + + pr_debug("%s entered\n", __func__); + + if (L1_DATA_A_LENGTH) + desc = l1_data_sram_zalloc(2 * sizeof(*desc)); + else { + dma_addr_t addr; + desc = dma_alloc_coherent(NULL, 2 * sizeof(*desc), &addr, 0); + memset(desc, 0, 2 * sizeof(*desc)); + } + if (!desc) { + pr_err("Failed to allocate memory for dummy tx desc\n"); + return -ENOMEM; + } + sport->dummy_tx_desc = desc; + desc->start_addr = (unsigned long)sport->dummy_buf + \ + sport->dummy_count; + config = DMAFLOW_LARGE | NDSIZE_9 | + compute_wdsize(sport->wdsize) | DMAEN; + desc->cfg = config; + desc->x_count = sport->dummy_count/sport->wdsize; + desc->x_modify = sport->wdsize; + desc->y_count = 0; + desc->y_modify = 0; + memcpy(desc+1, desc, sizeof(*desc)); + desc->next_desc_addr = desc + 1; + desc[1].next_desc_addr = desc; + return 0; +} + +unsigned long sport_curr_offset_rx(struct sport_device *sport) +{ + unsigned long curr = get_dma_curr_addr(sport->dma_rx_chan); + + return (unsigned char *)curr - sport->rx_buf; +} +EXPORT_SYMBOL(sport_curr_offset_rx); + +unsigned long sport_curr_offset_tx(struct sport_device *sport) +{ + unsigned long curr = get_dma_curr_addr(sport->dma_tx_chan); + + return (unsigned char *)curr - sport->tx_buf; +} +EXPORT_SYMBOL(sport_curr_offset_tx); + +void sport_incfrag(struct sport_device *sport, int *frag, int tx) +{ + ++(*frag); + if (tx == 1 && *frag == sport->tx_frags) + *frag = 0; + + if (tx == 0 && *frag == sport->rx_frags) + *frag = 0; +} +EXPORT_SYMBOL(sport_incfrag); + +void sport_decfrag(struct sport_device *sport, int *frag, int tx) +{ + --(*frag); + if (tx == 1 && *frag == 0) + *frag = sport->tx_frags; + + if (tx == 0 && *frag == 0) + *frag = sport->rx_frags; +} +EXPORT_SYMBOL(sport_decfrag); + +static int sport_check_status(struct sport_device *sport, + unsigned int *sport_stat, + unsigned int *rx_stat, + unsigned int *tx_stat) +{ + int status = 0; + + if (sport_stat) { + SSYNC(); + status = sport->regs->stat; + if (status & (TOVF|TUVF|ROVF|RUVF)) + sport->regs->stat = (status & (TOVF|TUVF|ROVF|RUVF)); + SSYNC(); + *sport_stat = status; + } + + if (rx_stat) { + SSYNC(); + status = get_dma_curr_irqstat(sport->dma_rx_chan); + if (status & (DMA_DONE|DMA_ERR)) + clear_dma_irqstat(sport->dma_rx_chan); + SSYNC(); + *rx_stat = status; + } + + if (tx_stat) { + SSYNC(); + status = get_dma_curr_irqstat(sport->dma_tx_chan); + if (status & (DMA_DONE|DMA_ERR)) + clear_dma_irqstat(sport->dma_tx_chan); + SSYNC(); + *tx_stat = status; + } + + return 0; +} + +int sport_dump_stat(struct sport_device *sport, char *buf, size_t len) +{ + int ret; + + ret = snprintf(buf, len, + "sts: 0x%04x\n" + "rx dma %d sts: 0x%04x tx dma %d sts: 0x%04x\n", + sport->regs->stat, + sport->dma_rx_chan, + get_dma_curr_irqstat(sport->dma_rx_chan), + sport->dma_tx_chan, + get_dma_curr_irqstat(sport->dma_tx_chan)); + buf += ret; + len -= ret; + + ret += snprintf(buf, len, + "curr_rx_desc:0x%p, curr_tx_desc:0x%p\n" + "dma_rx_desc:0x%p, dma_tx_desc:0x%p\n" + "dummy_rx_desc:0x%p, dummy_tx_desc:0x%p\n", + sport->curr_rx_desc, sport->curr_tx_desc, + sport->dma_rx_desc, sport->dma_tx_desc, + sport->dummy_rx_desc, sport->dummy_tx_desc); + + return ret; +} + +static irqreturn_t rx_handler(int irq, void *dev_id) +{ + unsigned int rx_stat; + struct sport_device *sport = dev_id; + + pr_debug("%s enter\n", __func__); + sport_check_status(sport, NULL, &rx_stat, NULL); + if (!(rx_stat & DMA_DONE)) + pr_err("rx dma is already stopped\n"); + + if (sport->rx_callback) { + sport->rx_callback(sport->rx_data); + return IRQ_HANDLED; + } + + return IRQ_NONE; +} + +static irqreturn_t tx_handler(int irq, void *dev_id) +{ + unsigned int tx_stat; + struct sport_device *sport = dev_id; + pr_debug("%s enter\n", __func__); + sport_check_status(sport, NULL, NULL, &tx_stat); + if (!(tx_stat & DMA_DONE)) { + pr_err("tx dma is already stopped\n"); + return IRQ_HANDLED; + } + if (sport->tx_callback) { + sport->tx_callback(sport->tx_data); + return IRQ_HANDLED; + } + + return IRQ_NONE; +} + +static irqreturn_t err_handler(int irq, void *dev_id) +{ + unsigned int status = 0; + struct sport_device *sport = dev_id; + + pr_debug("%s\n", __func__); + if (sport_check_status(sport, &status, NULL, NULL)) { + pr_err("error checking status ??"); + return IRQ_NONE; + } + + if (status & (TOVF|TUVF|ROVF|RUVF)) { + pr_info("sport status error:%s%s%s%s\n", + status & TOVF ? " TOVF" : "", + status & TUVF ? " TUVF" : "", + status & ROVF ? " ROVF" : "", + status & RUVF ? " RUVF" : ""); + if (status & TOVF || status & TUVF) { + disable_dma(sport->dma_tx_chan); + if (sport->tx_run) + sport_tx_dma_start(sport, 0); + else + sport_tx_dma_start(sport, 1); + enable_dma(sport->dma_tx_chan); + } else { + disable_dma(sport->dma_rx_chan); + if (sport->rx_run) + sport_rx_dma_start(sport, 0); + else + sport_rx_dma_start(sport, 1); + enable_dma(sport->dma_rx_chan); + } + } + status = sport->regs->stat; + if (status & (TOVF|TUVF|ROVF|RUVF)) + sport->regs->stat = (status & (TOVF|TUVF|ROVF|RUVF)); + SSYNC(); + + if (sport->err_callback) + sport->err_callback(sport->err_data); + + return IRQ_HANDLED; +} + +int sport_set_rx_callback(struct sport_device *sport, + void (*rx_callback)(void *), void *rx_data) +{ + if (WARN_ON(!rx_callback)) + return -EINVAL; + sport->rx_callback = rx_callback; + sport->rx_data = rx_data; + + return 0; +} +EXPORT_SYMBOL(sport_set_rx_callback); + +int sport_set_tx_callback(struct sport_device *sport, + void (*tx_callback)(void *), void *tx_data) +{ + if (WARN_ON(!tx_callback)) + return -EINVAL; + sport->tx_callback = tx_callback; + sport->tx_data = tx_data; + + return 0; +} +EXPORT_SYMBOL(sport_set_tx_callback); + +int sport_set_err_callback(struct sport_device *sport, + void (*err_callback)(void *), void *err_data) +{ + if (WARN_ON(!err_callback)) + return -EINVAL; + sport->err_callback = err_callback; + sport->err_data = err_data; + + return 0; +} +EXPORT_SYMBOL(sport_set_err_callback); + +static int sport_config_pdev(struct platform_device *pdev, struct sport_param *param) +{ + /* Extract settings from platform data */ + struct device *dev = &pdev->dev; + struct bfin_snd_platform_data *pdata = dev->platform_data; + struct resource *res; + + param->num = pdev->id; + + if (!pdata) { + dev_err(dev, "no platform_data\n"); + return -ENODEV; + } + param->pin_req = pdata->pin_req; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "no MEM resource\n"); + return -ENODEV; + } + param->regs = (struct sport_register *)res->start; + + /* first RX, then TX */ + res = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (!res) { + dev_err(dev, "no rx DMA resource\n"); + return -ENODEV; + } + param->dma_rx_chan = res->start; + + res = platform_get_resource(pdev, IORESOURCE_DMA, 1); + if (!res) { + dev_err(dev, "no tx DMA resource\n"); + return -ENODEV; + } + param->dma_tx_chan = res->start; + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!res) { + dev_err(dev, "no irq resource\n"); + return -ENODEV; + } + param->err_irq = res->start; + + return 0; +} + +struct sport_device *sport_init(struct platform_device *pdev, + unsigned int wdsize, unsigned int dummy_count, size_t priv_size) +{ + struct device *dev = &pdev->dev; + struct sport_param param; + struct sport_device *sport; + int ret; + + dev_dbg(dev, "%s enter\n", __func__); + + param.wdsize = wdsize; + param.dummy_count = dummy_count; + if (WARN_ON(param.wdsize == 0 || param.dummy_count == 0)) + return NULL; + + ret = sport_config_pdev(pdev, ¶m); + if (ret) + return NULL; + + if (peripheral_request_list(param.pin_req, "soc-audio")) { + dev_err(dev, "requesting Peripherals failed\n"); + return NULL; + } + + sport = kzalloc(sizeof(*sport), GFP_KERNEL); + if (!sport) { + dev_err(dev, "failed to allocate for sport device\n"); + goto __init_err0; + } + + sport->num = param.num; + sport->dma_rx_chan = param.dma_rx_chan; + sport->dma_tx_chan = param.dma_tx_chan; + sport->err_irq = param.err_irq; + sport->regs = param.regs; + sport->pin_req = param.pin_req; + + if (request_dma(sport->dma_rx_chan, "SPORT RX Data") == -EBUSY) { + dev_err(dev, "failed to request RX dma %d\n", sport->dma_rx_chan); + goto __init_err1; + } + if (set_dma_callback(sport->dma_rx_chan, rx_handler, sport) != 0) { + dev_err(dev, "failed to request RX irq %d\n", sport->dma_rx_chan); + goto __init_err2; + } + + if (request_dma(sport->dma_tx_chan, "SPORT TX Data") == -EBUSY) { + dev_err(dev, "failed to request TX dma %d\n", sport->dma_tx_chan); + goto __init_err2; + } + + if (set_dma_callback(sport->dma_tx_chan, tx_handler, sport) != 0) { + dev_err(dev, "failed to request TX irq %d\n", sport->dma_tx_chan); + goto __init_err3; + } + + if (request_irq(sport->err_irq, err_handler, IRQF_SHARED, "SPORT err", + sport) < 0) { + dev_err(dev, "failed to request err irq %d\n", sport->err_irq); + goto __init_err3; + } + + dev_info(dev, "dma rx:%d tx:%d, err irq:%d, regs:%p\n", + sport->dma_rx_chan, sport->dma_tx_chan, + sport->err_irq, sport->regs); + + sport->wdsize = param.wdsize; + sport->dummy_count = param.dummy_count; + + sport->private_data = kzalloc(priv_size, GFP_KERNEL); + if (!sport->private_data) { + dev_err(dev, "could not alloc priv data %zu bytes\n", priv_size); + goto __init_err4; + } + + if (L1_DATA_A_LENGTH) + sport->dummy_buf = l1_data_sram_zalloc(param.dummy_count * 2); + else + sport->dummy_buf = kzalloc(param.dummy_count * 2, GFP_KERNEL); + if (sport->dummy_buf == NULL) { + dev_err(dev, "failed to allocate dummy buffer\n"); + goto __error1; + } + + ret = sport_config_rx_dummy(sport); + if (ret) { + dev_err(dev, "failed to config rx dummy ring\n"); + goto __error2; + } + ret = sport_config_tx_dummy(sport); + if (ret) { + dev_err(dev, "failed to config tx dummy ring\n"); + goto __error3; + } + + platform_set_drvdata(pdev, sport); + + return sport; +__error3: + if (L1_DATA_A_LENGTH) + l1_data_sram_free(sport->dummy_rx_desc); + else + dma_free_coherent(NULL, 2*sizeof(struct dmasg), + sport->dummy_rx_desc, 0); +__error2: + if (L1_DATA_A_LENGTH) + l1_data_sram_free(sport->dummy_buf); + else + kfree(sport->dummy_buf); +__error1: + kfree(sport->private_data); +__init_err4: + free_irq(sport->err_irq, sport); +__init_err3: + free_dma(sport->dma_tx_chan); +__init_err2: + free_dma(sport->dma_rx_chan); +__init_err1: + kfree(sport); +__init_err0: + peripheral_free_list(param.pin_req); + return NULL; +} +EXPORT_SYMBOL(sport_init); + +void sport_done(struct sport_device *sport) +{ + if (sport == NULL) + return; + + sport_stop(sport); + if (sport->dma_rx_desc) + dma_free_coherent(NULL, sport->rx_desc_bytes, + sport->dma_rx_desc, 0); + if (sport->dma_tx_desc) + dma_free_coherent(NULL, sport->tx_desc_bytes, + sport->dma_tx_desc, 0); + +#if L1_DATA_A_LENGTH != 0 + l1_data_sram_free(sport->dummy_rx_desc); + l1_data_sram_free(sport->dummy_tx_desc); + l1_data_sram_free(sport->dummy_buf); +#else + dma_free_coherent(NULL, 2*sizeof(struct dmasg), + sport->dummy_rx_desc, 0); + dma_free_coherent(NULL, 2*sizeof(struct dmasg), + sport->dummy_tx_desc, 0); + kfree(sport->dummy_buf); +#endif + free_dma(sport->dma_rx_chan); + free_dma(sport->dma_tx_chan); + free_irq(sport->err_irq, sport); + + kfree(sport->private_data); + peripheral_free_list(sport->pin_req); + kfree(sport); +} +EXPORT_SYMBOL(sport_done); + +/* +* It is only used to send several bytes when dma is not enabled + * sport controller is configured but not enabled. + * Multichannel cannot works with pio mode */ +/* Used by ac97 to write and read codec register */ +int sport_send_and_recv(struct sport_device *sport, u8 *out_data, \ + u8 *in_data, int len) +{ + unsigned short dma_config; + unsigned short status; + unsigned long flags; + unsigned long wait = 0; + + pr_debug("%s enter, out_data:%p, in_data:%p len:%d\n", \ + __func__, out_data, in_data, len); + pr_debug("tcr1:0x%04x, tcr2:0x%04x, tclkdiv:0x%04x, tfsdiv:0x%04x\n" + "mcmc1:0x%04x, mcmc2:0x%04x\n", + sport->regs->tcr1, sport->regs->tcr2, + sport->regs->tclkdiv, sport->regs->tfsdiv, + sport->regs->mcmc1, sport->regs->mcmc2); + flush_dcache_range((unsigned)out_data, (unsigned)(out_data + len)); + + /* Enable tx dma */ + dma_config = (RESTART | WDSIZE_16 | DI_EN); + set_dma_start_addr(sport->dma_tx_chan, (unsigned long)out_data); + set_dma_x_count(sport->dma_tx_chan, len/2); + set_dma_x_modify(sport->dma_tx_chan, 2); + set_dma_config(sport->dma_tx_chan, dma_config); + enable_dma(sport->dma_tx_chan); + + if (in_data != NULL) { + invalidate_dcache_range((unsigned)in_data, \ + (unsigned)(in_data + len)); + /* Enable rx dma */ + dma_config = (RESTART | WDSIZE_16 | WNR | DI_EN); + set_dma_start_addr(sport->dma_rx_chan, (unsigned long)in_data); + set_dma_x_count(sport->dma_rx_chan, len/2); + set_dma_x_modify(sport->dma_rx_chan, 2); + set_dma_config(sport->dma_rx_chan, dma_config); + enable_dma(sport->dma_rx_chan); + } + + local_irq_save(flags); + sport->regs->tcr1 |= TSPEN; + sport->regs->rcr1 |= RSPEN; + SSYNC(); + + status = get_dma_curr_irqstat(sport->dma_tx_chan); + while (status & DMA_RUN) { + udelay(1); + status = get_dma_curr_irqstat(sport->dma_tx_chan); + pr_debug("DMA status:0x%04x\n", status); + if (wait++ > 100) + goto __over; + } + status = sport->regs->stat; + wait = 0; + + while (!(status & TXHRE)) { + pr_debug("sport status:0x%04x\n", status); + udelay(1); + status = *(unsigned short *)&sport->regs->stat; + if (wait++ > 1000) + goto __over; + } + /* Wait for the last byte sent out */ + udelay(20); + pr_debug("sport status:0x%04x\n", status); + +__over: + sport->regs->tcr1 &= ~TSPEN; + sport->regs->rcr1 &= ~RSPEN; + SSYNC(); + disable_dma(sport->dma_tx_chan); + /* Clear the status */ + clear_dma_irqstat(sport->dma_tx_chan); + if (in_data != NULL) { + disable_dma(sport->dma_rx_chan); + clear_dma_irqstat(sport->dma_rx_chan); + } + SSYNC(); + local_irq_restore(flags); + + return 0; +} +EXPORT_SYMBOL(sport_send_and_recv); + +MODULE_AUTHOR("Roy Huang"); +MODULE_DESCRIPTION("SPORT driver for ADI Blackfin"); +MODULE_LICENSE("GPL"); diff --git a/kernel/sound/soc/blackfin/bf5xx-sport.h b/kernel/sound/soc/blackfin/bf5xx-sport.h new file mode 100644 index 000000000..9fc2192fe --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-sport.h @@ -0,0 +1,174 @@ +/* + * File: bf5xx_sport.h + * Based on: + * Author: Roy Huang <roy.huang@analog.com> + * + * Created: + * Description: + * + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + + +#ifndef __BF5XX_SPORT_H__ +#define __BF5XX_SPORT_H__ + +#include <linux/types.h> +#include <linux/wait.h> +#include <linux/workqueue.h> +#include <linux/platform_device.h> +#include <asm/dma.h> +#include <asm/bfin_sport.h> + +#define DESC_ELEMENT_COUNT 9 + +struct sport_device { + int num; + int dma_rx_chan; + int dma_tx_chan; + int err_irq; + const unsigned short *pin_req; + struct sport_register *regs; + + unsigned char *rx_buf; + unsigned char *tx_buf; + unsigned int rx_fragsize; + unsigned int tx_fragsize; + unsigned int rx_frags; + unsigned int tx_frags; + unsigned int wdsize; + + /* for dummy dma transfer */ + void *dummy_buf; + unsigned int dummy_count; + + /* DMA descriptor ring head of current audio stream*/ + struct dmasg *dma_rx_desc; + struct dmasg *dma_tx_desc; + unsigned int rx_desc_bytes; + unsigned int tx_desc_bytes; + + unsigned int rx_run:1; /* rx is running */ + unsigned int tx_run:1; /* tx is running */ + + struct dmasg *dummy_rx_desc; + struct dmasg *dummy_tx_desc; + + struct dmasg *curr_rx_desc; + struct dmasg *curr_tx_desc; + + int rx_curr_frag; + int tx_curr_frag; + + unsigned int rcr1; + unsigned int rcr2; + int rx_tdm_count; + + unsigned int tcr1; + unsigned int tcr2; + int tx_tdm_count; + + void (*rx_callback)(void *data); + void *rx_data; + void (*tx_callback)(void *data); + void *tx_data; + void (*err_callback)(void *data); + void *err_data; + unsigned char *tx_dma_buf; + unsigned char *rx_dma_buf; +#ifdef CONFIG_SND_BF5XX_MMAP_SUPPORT + dma_addr_t tx_dma_phy; + dma_addr_t rx_dma_phy; + int tx_pos;/*pcm sample count*/ + int rx_pos; + unsigned int tx_buffer_size; + unsigned int rx_buffer_size; + int tx_delay_pos; + int once; +#endif + void *private_data; +}; + +struct sport_param { + int num; + int dma_rx_chan; + int dma_tx_chan; + int err_irq; + const unsigned short *pin_req; + struct sport_register *regs; + unsigned int wdsize; + unsigned int dummy_count; + void *private_data; +}; + +struct sport_device *sport_init(struct platform_device *pdev, + unsigned int wdsize, unsigned int dummy_count, size_t priv_size); + +void sport_done(struct sport_device *sport); + +/* first use these ...*/ + +/* note: multichannel is in units of 8 channels, tdm_count is number of channels + * NOT / 8 ! all channels are enabled by default */ +int sport_set_multichannel(struct sport_device *sport, int tdm_count, + u32 tx_mask, u32 rx_mask, int packed); + +int sport_config_rx(struct sport_device *sport, + unsigned int rcr1, unsigned int rcr2, + unsigned int clkdiv, unsigned int fsdiv); + +int sport_config_tx(struct sport_device *sport, + unsigned int tcr1, unsigned int tcr2, + unsigned int clkdiv, unsigned int fsdiv); + +/* ... then these: */ + +/* buffer size (in bytes) == fragcount * fragsize_bytes */ + +/* this is not a very general api, it sets the dma to 2d autobuffer mode */ + +int sport_config_rx_dma(struct sport_device *sport, void *buf, + int fragcount, size_t fragsize_bytes); + +int sport_config_tx_dma(struct sport_device *sport, void *buf, + int fragcount, size_t fragsize_bytes); + +int sport_tx_start(struct sport_device *sport); +int sport_tx_stop(struct sport_device *sport); +int sport_rx_start(struct sport_device *sport); +int sport_rx_stop(struct sport_device *sport); + +/* for use in interrupt handler */ +unsigned long sport_curr_offset_rx(struct sport_device *sport); +unsigned long sport_curr_offset_tx(struct sport_device *sport); + +void sport_incfrag(struct sport_device *sport, int *frag, int tx); +void sport_decfrag(struct sport_device *sport, int *frag, int tx); + +int sport_set_rx_callback(struct sport_device *sport, + void (*rx_callback)(void *), void *rx_data); +int sport_set_tx_callback(struct sport_device *sport, + void (*tx_callback)(void *), void *tx_data); +int sport_set_err_callback(struct sport_device *sport, + void (*err_callback)(void *), void *err_data); + +int sport_send_and_recv(struct sport_device *sport, u8 *out_data, \ + u8 *in_data, int len); +#endif /* BF53X_SPORT_H */ diff --git a/kernel/sound/soc/blackfin/bf5xx-ssm2602.c b/kernel/sound/soc/blackfin/bf5xx-ssm2602.c new file mode 100644 index 000000000..9c19ccc93 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf5xx-ssm2602.c @@ -0,0 +1,126 @@ +/* + * File: sound/soc/blackfin/bf5xx-ssm2602.c + * Author: Cliff Cai <Cliff.Cai@analog.com> + * + * Created: Tue June 06 2008 + * Description: board driver for SSM2602 sound chip + * + * Modified: + * Copyright 2008 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/device.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include <asm/dma.h> +#include <asm/portmux.h> +#include <linux/gpio.h> +#include "../codecs/ssm2602.h" +#include "bf5xx-sport.h" + +static struct snd_soc_card bf5xx_ssm2602; + +static int bf5xx_ssm2602_dai_init(struct snd_soc_pcm_runtime *rtd) +{ + /* + * If you are using a crystal source which frequency is not 12MHz + * then modify the below case statement with frequency of the crystal. + * + * If you are using the SPORT to generate clocking then this is + * where to do it. + */ + return snd_soc_dai_set_sysclk(rtd->codec_dai, SSM2602_SYSCLK, 12000000, + SND_SOC_CLOCK_IN); +} + +/* CODEC is master for BCLK and LRC in this configuration. */ +#define BF5XX_SSM2602_DAIFMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ + SND_SOC_DAIFMT_CBM_CFM) + +static struct snd_soc_dai_link bf5xx_ssm2602_dai[] = { + { + .name = "ssm2602", + .stream_name = "SSM2602", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "ssm2602-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "ssm2602.0-001b", + .init = bf5xx_ssm2602_dai_init, + .dai_fmt = BF5XX_SSM2602_DAIFMT, + }, + { + .name = "ssm2602", + .stream_name = "SSM2602", + .cpu_dai_name = "bfin-i2s.1", + .codec_dai_name = "ssm2602-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "ssm2602.0-001b", + .init = bf5xx_ssm2602_dai_init, + .dai_fmt = BF5XX_SSM2602_DAIFMT, + }, +}; + +static struct snd_soc_card bf5xx_ssm2602 = { + .name = "bfin-ssm2602", + .owner = THIS_MODULE, + .dai_link = &bf5xx_ssm2602_dai[CONFIG_SND_BF5XX_SPORT_NUM], + .num_links = 1, +}; + +static struct platform_device *bf5xx_ssm2602_snd_device; + +static int __init bf5xx_ssm2602_init(void) +{ + int ret; + + pr_debug("%s enter\n", __func__); + bf5xx_ssm2602_snd_device = platform_device_alloc("soc-audio", -1); + if (!bf5xx_ssm2602_snd_device) + return -ENOMEM; + + platform_set_drvdata(bf5xx_ssm2602_snd_device, &bf5xx_ssm2602); + ret = platform_device_add(bf5xx_ssm2602_snd_device); + + if (ret) + platform_device_put(bf5xx_ssm2602_snd_device); + + return ret; +} + +static void __exit bf5xx_ssm2602_exit(void) +{ + pr_debug("%s enter\n", __func__); + platform_device_unregister(bf5xx_ssm2602_snd_device); +} + +module_init(bf5xx_ssm2602_init); +module_exit(bf5xx_ssm2602_exit); + +/* Module information */ +MODULE_AUTHOR("Cliff Cai"); +MODULE_DESCRIPTION("ALSA SoC SSM2602 BF527-EZKIT"); +MODULE_LICENSE("GPL"); + diff --git a/kernel/sound/soc/blackfin/bf6xx-i2s.c b/kernel/sound/soc/blackfin/bf6xx-i2s.c new file mode 100644 index 000000000..bd3b4d464 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf6xx-i2s.c @@ -0,0 +1,239 @@ +/* + * bf6xx-i2s.c - Analog Devices BF6XX i2s interface driver + * + * Copyright (c) 2012 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include "bf6xx-sport.h" + +struct sport_params param; + +static int bfin_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai, + unsigned int fmt) +{ + struct sport_device *sport = snd_soc_dai_get_drvdata(cpu_dai); + struct device *dev = &sport->pdev->dev; + int ret = 0; + + param.spctl &= ~(SPORT_CTL_OPMODE | SPORT_CTL_CKRE | SPORT_CTL_FSR + | SPORT_CTL_LFS | SPORT_CTL_LAFS); + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + param.spctl |= SPORT_CTL_OPMODE | SPORT_CTL_CKRE + | SPORT_CTL_LFS; + break; + case SND_SOC_DAIFMT_DSP_A: + param.spctl |= SPORT_CTL_FSR; + break; + case SND_SOC_DAIFMT_LEFT_J: + param.spctl |= SPORT_CTL_OPMODE | SPORT_CTL_LFS + | SPORT_CTL_LAFS; + break; + default: + dev_err(dev, "%s: Unknown DAI format type\n", __func__); + ret = -EINVAL; + break; + } + + param.spctl &= ~(SPORT_CTL_ICLK | SPORT_CTL_IFS); + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + break; + case SND_SOC_DAIFMT_CBS_CFS: + case SND_SOC_DAIFMT_CBM_CFS: + case SND_SOC_DAIFMT_CBS_CFM: + ret = -EINVAL; + break; + default: + dev_err(dev, "%s: Unknown DAI master type\n", __func__); + ret = -EINVAL; + break; + } + + return ret; +} + +static int bfin_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct sport_device *sport = snd_soc_dai_get_drvdata(dai); + struct device *dev = &sport->pdev->dev; + int ret = 0; + + param.spctl &= ~SPORT_CTL_SLEN; + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S8: + param.spctl |= 0x70; + sport->wdsize = 1; + break; + case SNDRV_PCM_FORMAT_S16_LE: + param.spctl |= 0xf0; + sport->wdsize = 2; + break; + case SNDRV_PCM_FORMAT_S24_LE: + param.spctl |= 0x170; + sport->wdsize = 3; + break; + case SNDRV_PCM_FORMAT_S32_LE: + param.spctl |= 0x1f0; + sport->wdsize = 4; + break; + } + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + ret = sport_set_tx_params(sport, ¶m); + if (ret) { + dev_err(dev, "SPORT tx is busy!\n"); + return ret; + } + } else { + ret = sport_set_rx_params(sport, ¶m); + if (ret) { + dev_err(dev, "SPORT rx is busy!\n"); + return ret; + } + } + return 0; +} + +#ifdef CONFIG_PM +static int bfin_i2s_suspend(struct snd_soc_dai *dai) +{ + struct sport_device *sport = snd_soc_dai_get_drvdata(dai); + + if (dai->capture_active) + sport_rx_stop(sport); + if (dai->playback_active) + sport_tx_stop(sport); + return 0; +} + +static int bfin_i2s_resume(struct snd_soc_dai *dai) +{ + struct sport_device *sport = snd_soc_dai_get_drvdata(dai); + struct device *dev = &sport->pdev->dev; + int ret; + + ret = sport_set_tx_params(sport, ¶m); + if (ret) { + dev_err(dev, "SPORT tx is busy!\n"); + return ret; + } + ret = sport_set_rx_params(sport, ¶m); + if (ret) { + dev_err(dev, "SPORT rx is busy!\n"); + return ret; + } + + return 0; +} + +#else +#define bfin_i2s_suspend NULL +#define bfin_i2s_resume NULL +#endif + +#define BFIN_I2S_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ + SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \ + SNDRV_PCM_RATE_96000) + +#define BFIN_I2S_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +static struct snd_soc_dai_ops bfin_i2s_dai_ops = { + .hw_params = bfin_i2s_hw_params, + .set_fmt = bfin_i2s_set_dai_fmt, +}; + +static struct snd_soc_dai_driver bfin_i2s_dai = { + .suspend = bfin_i2s_suspend, + .resume = bfin_i2s_resume, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = BFIN_I2S_RATES, + .formats = BFIN_I2S_FORMATS, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rates = BFIN_I2S_RATES, + .formats = BFIN_I2S_FORMATS, + }, + .ops = &bfin_i2s_dai_ops, +}; + +static const struct snd_soc_component_driver bfin_i2s_component = { + .name = "bfin-i2s", +}; + +static int bfin_i2s_probe(struct platform_device *pdev) +{ + struct sport_device *sport; + struct device *dev = &pdev->dev; + int ret; + + sport = sport_create(pdev); + if (!sport) + return -ENODEV; + + /* register with the ASoC layers */ + ret = snd_soc_register_component(dev, &bfin_i2s_component, + &bfin_i2s_dai, 1); + if (ret) { + dev_err(dev, "Failed to register DAI: %d\n", ret); + sport_delete(sport); + return ret; + } + platform_set_drvdata(pdev, sport); + + return 0; +} + +static int bfin_i2s_remove(struct platform_device *pdev) +{ + struct sport_device *sport = platform_get_drvdata(pdev); + + snd_soc_unregister_component(&pdev->dev); + sport_delete(sport); + + return 0; +} + +static struct platform_driver bfin_i2s_driver = { + .probe = bfin_i2s_probe, + .remove = bfin_i2s_remove, + .driver = { + .name = "bfin-i2s", + }, +}; + +module_platform_driver(bfin_i2s_driver); + +MODULE_DESCRIPTION("Analog Devices BF6XX i2s interface driver"); +MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/kernel/sound/soc/blackfin/bf6xx-sport.c b/kernel/sound/soc/blackfin/bf6xx-sport.c new file mode 100644 index 000000000..dfb744381 --- /dev/null +++ b/kernel/sound/soc/blackfin/bf6xx-sport.c @@ -0,0 +1,429 @@ +/* + * bf6xx_sport.c Analog Devices BF6XX SPORT driver + * + * Copyright (c) 2012 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> + +#include <asm/blackfin.h> +#include <asm/dma.h> +#include <asm/portmux.h> + +#include "bf6xx-sport.h" + +int sport_set_tx_params(struct sport_device *sport, + struct sport_params *params) +{ + if (sport->tx_regs->spctl & SPORT_CTL_SPENPRI) + return -EBUSY; + sport->tx_regs->spctl = params->spctl | SPORT_CTL_SPTRAN; + sport->tx_regs->div = params->div; + SSYNC(); + return 0; +} +EXPORT_SYMBOL(sport_set_tx_params); + +int sport_set_rx_params(struct sport_device *sport, + struct sport_params *params) +{ + if (sport->rx_regs->spctl & SPORT_CTL_SPENPRI) + return -EBUSY; + sport->rx_regs->spctl = params->spctl & ~SPORT_CTL_SPTRAN; + sport->rx_regs->div = params->div; + SSYNC(); + return 0; +} +EXPORT_SYMBOL(sport_set_rx_params); + +static int compute_wdsize(size_t wdsize) +{ + switch (wdsize) { + case 1: + return WDSIZE_8 | PSIZE_8; + case 2: + return WDSIZE_16 | PSIZE_16; + default: + return WDSIZE_32 | PSIZE_32; + } +} + +void sport_tx_start(struct sport_device *sport) +{ + set_dma_next_desc_addr(sport->tx_dma_chan, sport->tx_desc); + set_dma_config(sport->tx_dma_chan, DMAFLOW_LIST | DI_EN + | compute_wdsize(sport->wdsize) | NDSIZE_6); + enable_dma(sport->tx_dma_chan); + sport->tx_regs->spctl |= SPORT_CTL_SPENPRI; + SSYNC(); +} +EXPORT_SYMBOL(sport_tx_start); + +void sport_rx_start(struct sport_device *sport) +{ + set_dma_next_desc_addr(sport->rx_dma_chan, sport->rx_desc); + set_dma_config(sport->rx_dma_chan, DMAFLOW_LIST | DI_EN | WNR + | compute_wdsize(sport->wdsize) | NDSIZE_6); + enable_dma(sport->rx_dma_chan); + sport->rx_regs->spctl |= SPORT_CTL_SPENPRI; + SSYNC(); +} +EXPORT_SYMBOL(sport_rx_start); + +void sport_tx_stop(struct sport_device *sport) +{ + sport->tx_regs->spctl &= ~SPORT_CTL_SPENPRI; + SSYNC(); + disable_dma(sport->tx_dma_chan); +} +EXPORT_SYMBOL(sport_tx_stop); + +void sport_rx_stop(struct sport_device *sport) +{ + sport->rx_regs->spctl &= ~SPORT_CTL_SPENPRI; + SSYNC(); + disable_dma(sport->rx_dma_chan); +} +EXPORT_SYMBOL(sport_rx_stop); + +void sport_set_tx_callback(struct sport_device *sport, + void (*tx_callback)(void *), void *tx_data) +{ + sport->tx_callback = tx_callback; + sport->tx_data = tx_data; +} +EXPORT_SYMBOL(sport_set_tx_callback); + +void sport_set_rx_callback(struct sport_device *sport, + void (*rx_callback)(void *), void *rx_data) +{ + sport->rx_callback = rx_callback; + sport->rx_data = rx_data; +} +EXPORT_SYMBOL(sport_set_rx_callback); + +static void setup_desc(struct dmasg *desc, void *buf, int fragcount, + size_t fragsize, unsigned int cfg, + unsigned int count, size_t wdsize) +{ + + int i; + + for (i = 0; i < fragcount; ++i) { + desc[i].next_desc_addr = &(desc[i + 1]); + desc[i].start_addr = (unsigned long)buf + i*fragsize; + desc[i].cfg = cfg; + desc[i].x_count = count; + desc[i].x_modify = wdsize; + desc[i].y_count = 0; + desc[i].y_modify = 0; + } + + /* make circular */ + desc[fragcount-1].next_desc_addr = desc; +} + +int sport_config_tx_dma(struct sport_device *sport, void *buf, + int fragcount, size_t fragsize) +{ + unsigned int count; + unsigned int cfg; + dma_addr_t addr; + + count = fragsize/sport->wdsize; + + if (sport->tx_desc) + dma_free_coherent(NULL, sport->tx_desc_size, + sport->tx_desc, 0); + + sport->tx_desc = dma_alloc_coherent(NULL, + fragcount * sizeof(struct dmasg), &addr, 0); + sport->tx_desc_size = fragcount * sizeof(struct dmasg); + if (!sport->tx_desc) + return -ENOMEM; + + sport->tx_buf = buf; + sport->tx_fragsize = fragsize; + sport->tx_frags = fragcount; + cfg = DMAFLOW_LIST | DI_EN | compute_wdsize(sport->wdsize) | NDSIZE_6; + + setup_desc(sport->tx_desc, buf, fragcount, fragsize, + cfg|DMAEN, count, sport->wdsize); + + return 0; +} +EXPORT_SYMBOL(sport_config_tx_dma); + +int sport_config_rx_dma(struct sport_device *sport, void *buf, + int fragcount, size_t fragsize) +{ + unsigned int count; + unsigned int cfg; + dma_addr_t addr; + + count = fragsize/sport->wdsize; + + if (sport->rx_desc) + dma_free_coherent(NULL, sport->rx_desc_size, + sport->rx_desc, 0); + + sport->rx_desc = dma_alloc_coherent(NULL, + fragcount * sizeof(struct dmasg), &addr, 0); + sport->rx_desc_size = fragcount * sizeof(struct dmasg); + if (!sport->rx_desc) + return -ENOMEM; + + sport->rx_buf = buf; + sport->rx_fragsize = fragsize; + sport->rx_frags = fragcount; + cfg = DMAFLOW_LIST | DI_EN | compute_wdsize(sport->wdsize) + | WNR | NDSIZE_6; + + setup_desc(sport->rx_desc, buf, fragcount, fragsize, + cfg|DMAEN, count, sport->wdsize); + + return 0; +} +EXPORT_SYMBOL(sport_config_rx_dma); + +unsigned long sport_curr_offset_tx(struct sport_device *sport) +{ + unsigned long curr = get_dma_curr_addr(sport->tx_dma_chan); + + return (unsigned char *)curr - sport->tx_buf; +} +EXPORT_SYMBOL(sport_curr_offset_tx); + +unsigned long sport_curr_offset_rx(struct sport_device *sport) +{ + unsigned long curr = get_dma_curr_addr(sport->rx_dma_chan); + + return (unsigned char *)curr - sport->rx_buf; +} +EXPORT_SYMBOL(sport_curr_offset_rx); + +static irqreturn_t sport_tx_irq(int irq, void *dev_id) +{ + struct sport_device *sport = dev_id; + static unsigned long status; + + status = get_dma_curr_irqstat(sport->tx_dma_chan); + if (status & (DMA_DONE|DMA_ERR)) { + clear_dma_irqstat(sport->tx_dma_chan); + SSYNC(); + } + if (sport->tx_callback) + sport->tx_callback(sport->tx_data); + return IRQ_HANDLED; +} + +static irqreturn_t sport_rx_irq(int irq, void *dev_id) +{ + struct sport_device *sport = dev_id; + unsigned long status; + + status = get_dma_curr_irqstat(sport->rx_dma_chan); + if (status & (DMA_DONE|DMA_ERR)) { + clear_dma_irqstat(sport->rx_dma_chan); + SSYNC(); + } + if (sport->rx_callback) + sport->rx_callback(sport->rx_data); + return IRQ_HANDLED; +} + +static irqreturn_t sport_err_irq(int irq, void *dev_id) +{ + struct sport_device *sport = dev_id; + struct device *dev = &sport->pdev->dev; + + if (sport->tx_regs->spctl & SPORT_CTL_DERRPRI) + dev_err(dev, "sport error: TUVF\n"); + if (sport->rx_regs->spctl & SPORT_CTL_DERRPRI) + dev_err(dev, "sport error: ROVF\n"); + + return IRQ_HANDLED; +} + +static int sport_get_resource(struct sport_device *sport) +{ + struct platform_device *pdev = sport->pdev; + struct device *dev = &pdev->dev; + struct bfin_snd_platform_data *pdata = dev->platform_data; + struct resource *res; + + if (!pdata) { + dev_err(dev, "No platform data\n"); + return -ENODEV; + } + sport->pin_req = pdata->pin_req; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "No tx MEM resource\n"); + return -ENODEV; + } + sport->tx_regs = (struct sport_register *)res->start; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(dev, "No rx MEM resource\n"); + return -ENODEV; + } + sport->rx_regs = (struct sport_register *)res->start; + + res = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (!res) { + dev_err(dev, "No tx DMA resource\n"); + return -ENODEV; + } + sport->tx_dma_chan = res->start; + + res = platform_get_resource(pdev, IORESOURCE_DMA, 1); + if (!res) { + dev_err(dev, "No rx DMA resource\n"); + return -ENODEV; + } + sport->rx_dma_chan = res->start; + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!res) { + dev_err(dev, "No tx error irq resource\n"); + return -ENODEV; + } + sport->tx_err_irq = res->start; + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 1); + if (!res) { + dev_err(dev, "No rx error irq resource\n"); + return -ENODEV; + } + sport->rx_err_irq = res->start; + + return 0; +} + +static int sport_request_resource(struct sport_device *sport) +{ + struct device *dev = &sport->pdev->dev; + int ret; + + ret = peripheral_request_list(sport->pin_req, "soc-audio"); + if (ret) { + dev_err(dev, "Unable to request sport pin\n"); + return ret; + } + + ret = request_dma(sport->tx_dma_chan, "SPORT TX Data"); + if (ret) { + dev_err(dev, "Unable to allocate DMA channel for sport tx\n"); + goto err_tx_dma; + } + set_dma_callback(sport->tx_dma_chan, sport_tx_irq, sport); + + ret = request_dma(sport->rx_dma_chan, "SPORT RX Data"); + if (ret) { + dev_err(dev, "Unable to allocate DMA channel for sport rx\n"); + goto err_rx_dma; + } + set_dma_callback(sport->rx_dma_chan, sport_rx_irq, sport); + + ret = request_irq(sport->tx_err_irq, sport_err_irq, + 0, "SPORT TX ERROR", sport); + if (ret) { + dev_err(dev, "Unable to allocate tx error IRQ for sport\n"); + goto err_tx_irq; + } + + ret = request_irq(sport->rx_err_irq, sport_err_irq, + 0, "SPORT RX ERROR", sport); + if (ret) { + dev_err(dev, "Unable to allocate rx error IRQ for sport\n"); + goto err_rx_irq; + } + + return 0; +err_rx_irq: + free_irq(sport->tx_err_irq, sport); +err_tx_irq: + free_dma(sport->rx_dma_chan); +err_rx_dma: + free_dma(sport->tx_dma_chan); +err_tx_dma: + peripheral_free_list(sport->pin_req); + return ret; +} + +static void sport_free_resource(struct sport_device *sport) +{ + free_irq(sport->rx_err_irq, sport); + free_irq(sport->tx_err_irq, sport); + free_dma(sport->rx_dma_chan); + free_dma(sport->tx_dma_chan); + peripheral_free_list(sport->pin_req); +} + +struct sport_device *sport_create(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct sport_device *sport; + int ret; + + sport = kzalloc(sizeof(*sport), GFP_KERNEL); + if (!sport) { + dev_err(dev, "Unable to allocate memory for sport device\n"); + return NULL; + } + sport->pdev = pdev; + + ret = sport_get_resource(sport); + if (ret) { + kfree(sport); + return NULL; + } + + ret = sport_request_resource(sport); + if (ret) { + kfree(sport); + return NULL; + } + + dev_dbg(dev, "SPORT create success\n"); + return sport; +} +EXPORT_SYMBOL(sport_create); + +void sport_delete(struct sport_device *sport) +{ + if (sport->tx_desc) + dma_free_coherent(NULL, sport->tx_desc_size, + sport->tx_desc, 0); + if (sport->rx_desc) + dma_free_coherent(NULL, sport->rx_desc_size, + sport->rx_desc, 0); + sport_free_resource(sport); + kfree(sport); +} +EXPORT_SYMBOL(sport_delete); + +MODULE_DESCRIPTION("Analog Devices BF6XX SPORT driver"); +MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/kernel/sound/soc/blackfin/bf6xx-sport.h b/kernel/sound/soc/blackfin/bf6xx-sport.h new file mode 100644 index 000000000..307d193cf --- /dev/null +++ b/kernel/sound/soc/blackfin/bf6xx-sport.h @@ -0,0 +1,82 @@ +/* + * bf6xx_sport - Analog Devices BF6XX SPORT driver + * + * Copyright (c) 2012 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _BF6XX_SPORT_H_ +#define _BF6XX_SPORT_H_ + +#include <linux/platform_device.h> +#include <asm/bfin_sport3.h> + +struct sport_device { + struct platform_device *pdev; + const unsigned short *pin_req; + struct sport_register *tx_regs; + struct sport_register *rx_regs; + int tx_dma_chan; + int rx_dma_chan; + int tx_err_irq; + int rx_err_irq; + + void (*tx_callback)(void *data); + void *tx_data; + void (*rx_callback)(void *data); + void *rx_data; + + struct dmasg *tx_desc; + struct dmasg *rx_desc; + unsigned int tx_desc_size; + unsigned int rx_desc_size; + unsigned char *tx_buf; + unsigned char *rx_buf; + unsigned int tx_fragsize; + unsigned int rx_fragsize; + unsigned int tx_frags; + unsigned int rx_frags; + unsigned int wdsize; +}; + +struct sport_params { + u32 spctl; + u32 div; +}; + +struct sport_device *sport_create(struct platform_device *pdev); +void sport_delete(struct sport_device *sport); +int sport_set_tx_params(struct sport_device *sport, + struct sport_params *params); +int sport_set_rx_params(struct sport_device *sport, + struct sport_params *params); +void sport_tx_start(struct sport_device *sport); +void sport_rx_start(struct sport_device *sport); +void sport_tx_stop(struct sport_device *sport); +void sport_rx_stop(struct sport_device *sport); +void sport_set_tx_callback(struct sport_device *sport, + void (*tx_callback)(void *), void *tx_data); +void sport_set_rx_callback(struct sport_device *sport, + void (*rx_callback)(void *), void *rx_data); +int sport_config_tx_dma(struct sport_device *sport, void *buf, + int fragcount, size_t fragsize); +int sport_config_rx_dma(struct sport_device *sport, void *buf, + int fragcount, size_t fragsize); +unsigned long sport_curr_offset_tx(struct sport_device *sport); +unsigned long sport_curr_offset_rx(struct sport_device *sport); + + + +#endif diff --git a/kernel/sound/soc/blackfin/bfin-eval-adau1373.c b/kernel/sound/soc/blackfin/bfin-eval-adau1373.c new file mode 100644 index 000000000..523baf582 --- /dev/null +++ b/kernel/sound/soc/blackfin/bfin-eval-adau1373.c @@ -0,0 +1,183 @@ +/* + * Machine driver for EVAL-ADAU1373 on Analog Devices bfin + * evaluation boards. + * + * Copyright 2011 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/module.h> +#include <linux/device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include "../codecs/adau1373.h" + +static const struct snd_soc_dapm_widget bfin_eval_adau1373_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Line In1", NULL), + SND_SOC_DAPM_LINE("Line In2", NULL), + SND_SOC_DAPM_LINE("Line In3", NULL), + SND_SOC_DAPM_LINE("Line In4", NULL), + + SND_SOC_DAPM_LINE("Line Out1", NULL), + SND_SOC_DAPM_LINE("Line Out2", NULL), + SND_SOC_DAPM_LINE("Stereo Out", NULL), + SND_SOC_DAPM_HP("Headphone", NULL), + SND_SOC_DAPM_HP("Earpiece", NULL), + SND_SOC_DAPM_SPK("Speaker", NULL), +}; + +static const struct snd_soc_dapm_route bfin_eval_adau1373_dapm_routes[] = { + { "AIN1L", NULL, "Line In1" }, + { "AIN1R", NULL, "Line In1" }, + { "AIN2L", NULL, "Line In2" }, + { "AIN2R", NULL, "Line In2" }, + { "AIN3L", NULL, "Line In3" }, + { "AIN3R", NULL, "Line In3" }, + { "AIN4L", NULL, "Line In4" }, + { "AIN4R", NULL, "Line In4" }, + + /* MICBIAS can be connected via a jumper to the line-in jack, since w + don't know which one is going to be used, just power both. */ + { "Line In1", NULL, "MICBIAS1" }, + { "Line In2", NULL, "MICBIAS1" }, + { "Line In3", NULL, "MICBIAS1" }, + { "Line In4", NULL, "MICBIAS1" }, + { "Line In1", NULL, "MICBIAS2" }, + { "Line In2", NULL, "MICBIAS2" }, + { "Line In3", NULL, "MICBIAS2" }, + { "Line In4", NULL, "MICBIAS2" }, + + { "Line Out1", NULL, "LOUT1L" }, + { "Line Out1", NULL, "LOUT1R" }, + { "Line Out2", NULL, "LOUT2L" }, + { "Line Out2", NULL, "LOUT2R" }, + { "Headphone", NULL, "HPL" }, + { "Headphone", NULL, "HPR" }, + { "Earpiece", NULL, "EP" }, + { "Speaker", NULL, "SPKL" }, + { "Stereo Out", NULL, "SPKR" }, +}; + +static int bfin_eval_adau1373_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int ret; + int pll_rate; + + switch (params_rate(params)) { + case 48000: + case 8000: + case 12000: + case 16000: + case 24000: + case 32000: + pll_rate = 48000 * 1024; + break; + case 44100: + case 7350: + case 11025: + case 14700: + case 22050: + case 29400: + pll_rate = 44100 * 1024; + break; + default: + return -EINVAL; + } + + ret = snd_soc_dai_set_pll(codec_dai, ADAU1373_PLL1, + ADAU1373_PLL_SRC_MCLK1, 12288000, pll_rate); + if (ret) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1373_CLK_SRC_PLL1, pll_rate, + SND_SOC_CLOCK_IN); + + return ret; +} + +static int bfin_eval_adau1373_codec_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *codec_dai = rtd->codec_dai; + unsigned int pll_rate = 48000 * 1024; + int ret; + + ret = snd_soc_dai_set_pll(codec_dai, ADAU1373_PLL1, + ADAU1373_PLL_SRC_MCLK1, 12288000, pll_rate); + if (ret) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1373_CLK_SRC_PLL1, pll_rate, + SND_SOC_CLOCK_IN); + + return ret; +} +static struct snd_soc_ops bfin_eval_adau1373_ops = { + .hw_params = bfin_eval_adau1373_hw_params, +}; + +static struct snd_soc_dai_link bfin_eval_adau1373_dai = { + .name = "adau1373", + .stream_name = "adau1373", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "adau1373-aif1", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "adau1373.0-001a", + .ops = &bfin_eval_adau1373_ops, + .init = bfin_eval_adau1373_codec_init, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, +}; + +static struct snd_soc_card bfin_eval_adau1373 = { + .name = "bfin-eval-adau1373", + .owner = THIS_MODULE, + .dai_link = &bfin_eval_adau1373_dai, + .num_links = 1, + + .dapm_widgets = bfin_eval_adau1373_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1373_dapm_widgets), + .dapm_routes = bfin_eval_adau1373_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1373_dapm_routes), +}; + +static int bfin_eval_adau1373_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &bfin_eval_adau1373; + + card->dev = &pdev->dev; + + return snd_soc_register_card(&bfin_eval_adau1373); +} + +static int bfin_eval_adau1373_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + + return 0; +} + +static struct platform_driver bfin_eval_adau1373_driver = { + .driver = { + .name = "bfin-eval-adau1373", + .pm = &snd_soc_pm_ops, + }, + .probe = bfin_eval_adau1373_probe, + .remove = bfin_eval_adau1373_remove, +}; + +module_platform_driver(bfin_eval_adau1373_driver); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ALSA SoC bfin adau1373 driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:bfin-eval-adau1373"); diff --git a/kernel/sound/soc/blackfin/bfin-eval-adau1701.c b/kernel/sound/soc/blackfin/bfin-eval-adau1701.c new file mode 100644 index 000000000..f9e926dfd --- /dev/null +++ b/kernel/sound/soc/blackfin/bfin-eval-adau1701.c @@ -0,0 +1,123 @@ +/* + * Machine driver for EVAL-ADAU1701MINIZ on Analog Devices bfin + * evaluation boards. + * + * Copyright 2011 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/module.h> +#include <linux/device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include "../codecs/adau1701.h" + +static const struct snd_soc_dapm_widget bfin_eval_adau1701_dapm_widgets[] = { + SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_LINE("Line Out", NULL), + SND_SOC_DAPM_LINE("Line In", NULL), +}; + +static const struct snd_soc_dapm_route bfin_eval_adau1701_dapm_routes[] = { + { "Speaker", NULL, "OUT0" }, + { "Speaker", NULL, "OUT1" }, + { "Line Out", NULL, "OUT2" }, + { "Line Out", NULL, "OUT3" }, + + { "IN0", NULL, "Line In" }, + { "IN1", NULL, "Line In" }, +}; + +static int bfin_eval_adau1701_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1701_CLK_SRC_OSC, 12288000, + SND_SOC_CLOCK_IN); + + return ret; +} + +static struct snd_soc_ops bfin_eval_adau1701_ops = { + .hw_params = bfin_eval_adau1701_hw_params, +}; + +#define BFIN_EVAL_ADAU1701_DAI_FMT (SND_SOC_DAIFMT_I2S | \ + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM) + +static struct snd_soc_dai_link bfin_eval_adau1701_dai[] = { + { + .name = "adau1701", + .stream_name = "adau1701", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "adau1701", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "adau1701.0-0034", + .ops = &bfin_eval_adau1701_ops, + .dai_fmt = BFIN_EVAL_ADAU1701_DAI_FMT, + }, + { + .name = "adau1701", + .stream_name = "adau1701", + .cpu_dai_name = "bfin-i2s.1", + .codec_dai_name = "adau1701", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "adau1701.0-0034", + .ops = &bfin_eval_adau1701_ops, + .dai_fmt = BFIN_EVAL_ADAU1701_DAI_FMT, + }, +}; + +static struct snd_soc_card bfin_eval_adau1701 = { + .name = "bfin-eval-adau1701", + .owner = THIS_MODULE, + .dai_link = &bfin_eval_adau1701_dai[CONFIG_SND_BF5XX_SPORT_NUM], + .num_links = 1, + + .dapm_widgets = bfin_eval_adau1701_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1701_dapm_widgets), + .dapm_routes = bfin_eval_adau1701_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1701_dapm_routes), +}; + +static int bfin_eval_adau1701_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &bfin_eval_adau1701; + + card->dev = &pdev->dev; + + return snd_soc_register_card(&bfin_eval_adau1701); +} + +static int bfin_eval_adau1701_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + + return 0; +} + +static struct platform_driver bfin_eval_adau1701_driver = { + .driver = { + .name = "bfin-eval-adau1701", + .pm = &snd_soc_pm_ops, + }, + .probe = bfin_eval_adau1701_probe, + .remove = bfin_eval_adau1701_remove, +}; + +module_platform_driver(bfin_eval_adau1701_driver); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ALSA SoC bfin ADAU1701 driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:bfin-eval-adau1701"); diff --git a/kernel/sound/soc/blackfin/bfin-eval-adau1x61.c b/kernel/sound/soc/blackfin/bfin-eval-adau1x61.c new file mode 100644 index 000000000..4229f76da --- /dev/null +++ b/kernel/sound/soc/blackfin/bfin-eval-adau1x61.c @@ -0,0 +1,141 @@ +/* + * Machine driver for EVAL-ADAU1x61MINIZ on Analog Devices bfin + * evaluation boards. + * + * Copyright 2011-2014 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/module.h> +#include <linux/device.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include "../codecs/adau17x1.h" + +static const struct snd_soc_dapm_widget bfin_eval_adau1x61_dapm_widgets[] = { + SND_SOC_DAPM_LINE("In 1", NULL), + SND_SOC_DAPM_LINE("In 2", NULL), + SND_SOC_DAPM_LINE("In 3-4", NULL), + + SND_SOC_DAPM_LINE("Diff Out L", NULL), + SND_SOC_DAPM_LINE("Diff Out R", NULL), + SND_SOC_DAPM_LINE("Stereo Out", NULL), + SND_SOC_DAPM_HP("Capless HP Out", NULL), +}; + +static const struct snd_soc_dapm_route bfin_eval_adau1x61_dapm_routes[] = { + { "LAUX", NULL, "In 3-4" }, + { "RAUX", NULL, "In 3-4" }, + { "LINP", NULL, "In 1" }, + { "LINN", NULL, "In 1"}, + { "RINP", NULL, "In 2" }, + { "RINN", NULL, "In 2" }, + + { "In 1", NULL, "MICBIAS" }, + { "In 2", NULL, "MICBIAS" }, + + { "Capless HP Out", NULL, "LHP" }, + { "Capless HP Out", NULL, "RHP" }, + { "Diff Out L", NULL, "LOUT" }, + { "Diff Out R", NULL, "ROUT" }, + { "Stereo Out", NULL, "LOUT" }, + { "Stereo Out", NULL, "ROUT" }, +}; + +static int bfin_eval_adau1x61_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int pll_rate; + int ret; + + switch (params_rate(params)) { + case 48000: + case 8000: + case 12000: + case 16000: + case 24000: + case 32000: + case 96000: + pll_rate = 48000 * 1024; + break; + case 44100: + case 7350: + case 11025: + case 14700: + case 22050: + case 29400: + case 88200: + pll_rate = 44100 * 1024; + break; + default: + return -EINVAL; + } + + ret = snd_soc_dai_set_pll(codec_dai, ADAU17X1_PLL, + ADAU17X1_PLL_SRC_MCLK, 12288000, pll_rate); + if (ret) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, ADAU17X1_CLK_SRC_PLL, pll_rate, + SND_SOC_CLOCK_IN); + + return ret; +} + +static const struct snd_soc_ops bfin_eval_adau1x61_ops = { + .hw_params = bfin_eval_adau1x61_hw_params, +}; + +static struct snd_soc_dai_link bfin_eval_adau1x61_dai = { + .name = "adau1x61", + .stream_name = "adau1x61", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "adau-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "adau1761.0-0038", + .ops = &bfin_eval_adau1x61_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, +}; + +static struct snd_soc_card bfin_eval_adau1x61 = { + .name = "bfin-eval-adau1x61", + .driver_name = "eval-adau1x61", + .dai_link = &bfin_eval_adau1x61_dai, + .num_links = 1, + + .dapm_widgets = bfin_eval_adau1x61_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1x61_dapm_widgets), + .dapm_routes = bfin_eval_adau1x61_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1x61_dapm_routes), + .fully_routed = true, +}; + +static int bfin_eval_adau1x61_probe(struct platform_device *pdev) +{ + bfin_eval_adau1x61.dev = &pdev->dev; + + return devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adau1x61); +} + +static struct platform_driver bfin_eval_adau1x61_driver = { + .driver = { + .name = "bfin-eval-adau1x61", + .pm = &snd_soc_pm_ops, + }, + .probe = bfin_eval_adau1x61_probe, +}; +module_platform_driver(bfin_eval_adau1x61_driver); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ALSA SoC bfin adau1x61 driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:bfin-eval-adau1x61"); diff --git a/kernel/sound/soc/blackfin/bfin-eval-adau1x81.c b/kernel/sound/soc/blackfin/bfin-eval-adau1x81.c new file mode 100644 index 000000000..3e01cbe53 --- /dev/null +++ b/kernel/sound/soc/blackfin/bfin-eval-adau1x81.c @@ -0,0 +1,129 @@ +/* + * Machine driver for EVAL-ADAU1x81 on Analog Devices bfin + * evaluation boards. + * + * Copyright 2011-2014 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/module.h> +#include <linux/device.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include "../codecs/adau17x1.h" + +static const struct snd_soc_dapm_widget bfin_eval_adau1x81_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Stereo In", NULL), + SND_SOC_DAPM_LINE("Beep", NULL), + + SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_HP("Headphone", NULL), +}; + +static const struct snd_soc_dapm_route bfin_eval_adau1x81_dapm_routes[] = { + { "BEEP", NULL, "Beep" }, + { "LMIC", NULL, "Stereo In" }, + { "LMIC", NULL, "Stereo In" }, + + { "Headphone", NULL, "AOUTL" }, + { "Headphone", NULL, "AOUTR" }, + { "Speaker", NULL, "SP" }, +}; + +static int bfin_eval_adau1x81_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int pll_rate; + int ret; + + switch (params_rate(params)) { + case 48000: + case 8000: + case 12000: + case 16000: + case 24000: + case 32000: + case 96000: + pll_rate = 48000 * 1024; + break; + case 44100: + case 7350: + case 11025: + case 14700: + case 22050: + case 29400: + case 88200: + pll_rate = 44100 * 1024; + break; + default: + return -EINVAL; + } + + ret = snd_soc_dai_set_pll(codec_dai, ADAU17X1_PLL, + ADAU17X1_PLL_SRC_MCLK, 12288000, pll_rate); + if (ret) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, ADAU17X1_CLK_SRC_PLL, pll_rate, + SND_SOC_CLOCK_IN); + + return ret; +} + +static const struct snd_soc_ops bfin_eval_adau1x81_ops = { + .hw_params = bfin_eval_adau1x81_hw_params, +}; + +static struct snd_soc_dai_link bfin_eval_adau1x81_dai = { + .name = "adau1x81", + .stream_name = "adau1x81", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "adau-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "adau1781.0-0038", + .ops = &bfin_eval_adau1x81_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, +}; + +static struct snd_soc_card bfin_eval_adau1x81 = { + .name = "bfin-eval-adau1x81", + .driver_name = "eval-adau1x81", + .dai_link = &bfin_eval_adau1x81_dai, + .num_links = 1, + + .dapm_widgets = bfin_eval_adau1x81_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1x81_dapm_widgets), + .dapm_routes = bfin_eval_adau1x81_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1x81_dapm_routes), + .fully_routed = true, +}; + +static int bfin_eval_adau1x81_probe(struct platform_device *pdev) +{ + bfin_eval_adau1x81.dev = &pdev->dev; + + return devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adau1x81); +} + +static struct platform_driver bfin_eval_adau1x81_driver = { + .driver = { + .name = "bfin-eval-adau1x81", + .pm = &snd_soc_pm_ops, + }, + .probe = bfin_eval_adau1x81_probe, +}; +module_platform_driver(bfin_eval_adau1x81_driver); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ALSA SoC bfin adau1x81 driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:bfin-eval-adau1x81"); diff --git a/kernel/sound/soc/blackfin/bfin-eval-adav80x.c b/kernel/sound/soc/blackfin/bfin-eval-adav80x.c new file mode 100644 index 000000000..27eee66af --- /dev/null +++ b/kernel/sound/soc/blackfin/bfin-eval-adav80x.c @@ -0,0 +1,155 @@ +/* + * Machine driver for EVAL-ADAV801 and EVAL-ADAV803 on Analog Devices bfin + * evaluation boards. + * + * Copyright 2011 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> + +#include "../codecs/adav80x.h" + +static const struct snd_soc_dapm_widget bfin_eval_adav80x_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Line Out", NULL), + SND_SOC_DAPM_LINE("Line In", NULL), +}; + +static const struct snd_soc_dapm_route bfin_eval_adav80x_dapm_routes[] = { + { "Line Out", NULL, "VOUTL" }, + { "Line Out", NULL, "VOUTR" }, + + { "VINL", NULL, "Line In" }, + { "VINR", NULL, "Line In" }, +}; + +static int bfin_eval_adav80x_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int ret; + + ret = snd_soc_dai_set_pll(codec_dai, ADAV80X_PLL1, ADAV80X_PLL_SRC_XTAL, + 27000000, params_rate(params) * 256); + if (ret) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_PLL1, + params_rate(params) * 256, SND_SOC_CLOCK_IN); + + return ret; +} + +static int bfin_eval_adav80x_codec_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *codec_dai = rtd->codec_dai; + + snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK1, 0, + SND_SOC_CLOCK_OUT); + snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK2, 0, + SND_SOC_CLOCK_OUT); + snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK3, 0, + SND_SOC_CLOCK_OUT); + + snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_XTAL, 2700000, 0); + + return 0; +} + +static struct snd_soc_ops bfin_eval_adav80x_ops = { + .hw_params = bfin_eval_adav80x_hw_params, +}; + +static struct snd_soc_dai_link bfin_eval_adav80x_dais[] = { + { + .name = "adav80x", + .stream_name = "ADAV80x HiFi", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "adav80x-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .init = bfin_eval_adav80x_codec_init, + .ops = &bfin_eval_adav80x_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + }, +}; + +static struct snd_soc_card bfin_eval_adav80x = { + .name = "bfin-eval-adav80x", + .owner = THIS_MODULE, + .dai_link = bfin_eval_adav80x_dais, + .num_links = ARRAY_SIZE(bfin_eval_adav80x_dais), + + .dapm_widgets = bfin_eval_adav80x_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adav80x_dapm_widgets), + .dapm_routes = bfin_eval_adav80x_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(bfin_eval_adav80x_dapm_routes), +}; + +enum bfin_eval_adav80x_type { + BFIN_EVAL_ADAV801, + BFIN_EVAL_ADAV803, +}; + +static int bfin_eval_adav80x_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &bfin_eval_adav80x; + const char *codec_name; + + switch (platform_get_device_id(pdev)->driver_data) { + case BFIN_EVAL_ADAV801: + codec_name = "spi0.1"; + break; + case BFIN_EVAL_ADAV803: + codec_name = "adav803.0-0034"; + break; + default: + return -EINVAL; + } + + bfin_eval_adav80x_dais[0].codec_name = codec_name; + + card->dev = &pdev->dev; + + return snd_soc_register_card(&bfin_eval_adav80x); +} + +static int bfin_eval_adav80x_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + + return 0; +} + +static const struct platform_device_id bfin_eval_adav80x_ids[] = { + { "bfin-eval-adav801", BFIN_EVAL_ADAV801 }, + { "bfin-eval-adav803", BFIN_EVAL_ADAV803 }, + { }, +}; +MODULE_DEVICE_TABLE(platform, bfin_eval_adav80x_ids); + +static struct platform_driver bfin_eval_adav80x_driver = { + .driver = { + .name = "bfin-eval-adav80x", + .pm = &snd_soc_pm_ops, + }, + .probe = bfin_eval_adav80x_probe, + .remove = bfin_eval_adav80x_remove, + .id_table = bfin_eval_adav80x_ids, +}; + +module_platform_driver(bfin_eval_adav80x_driver); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ALSA SoC bfin adav80x driver"); +MODULE_LICENSE("GPL"); |