diff options
Diffstat (limited to 'kernel/sound/usb/6fire/control.c')
| -rw-r--r-- | kernel/sound/usb/6fire/control.c | 621 |
1 files changed, 621 insertions, 0 deletions
diff --git a/kernel/sound/usb/6fire/control.c b/kernel/sound/usb/6fire/control.c new file mode 100644 index 000000000..54656eed6 --- /dev/null +++ b/kernel/sound/usb/6fire/control.c @@ -0,0 +1,621 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Mixer control + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + * + * Thanks to: + * - Holger Ruckdeschel: he found out how to control individual channel + * volumes and introduced mute switch + * + * 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/interrupt.h> +#include <sound/control.h> +#include <sound/tlv.h> + +#include "control.h" +#include "comm.h" +#include "chip.h" + +static const char * const opt_coax_texts[2] = { "Optical", "Coax" }; +static const char * const line_phono_texts[2] = { "Line", "Phono" }; + +/* + * data that needs to be sent to device. sets up card internal stuff. + * values dumped from windows driver and filtered by trial'n'error. + */ +static const struct { + u8 type; + u8 reg; + u8 value; +} +init_data[] = { + { 0x22, 0x00, 0x00 }, { 0x20, 0x00, 0x08 }, { 0x22, 0x01, 0x01 }, + { 0x20, 0x01, 0x08 }, { 0x22, 0x02, 0x00 }, { 0x20, 0x02, 0x08 }, + { 0x22, 0x03, 0x00 }, { 0x20, 0x03, 0x08 }, { 0x22, 0x04, 0x00 }, + { 0x20, 0x04, 0x08 }, { 0x22, 0x05, 0x01 }, { 0x20, 0x05, 0x08 }, + { 0x22, 0x04, 0x01 }, { 0x12, 0x04, 0x00 }, { 0x12, 0x05, 0x00 }, + { 0x12, 0x0d, 0x38 }, { 0x12, 0x21, 0x82 }, { 0x12, 0x22, 0x80 }, + { 0x12, 0x23, 0x00 }, { 0x12, 0x06, 0x02 }, { 0x12, 0x03, 0x00 }, + { 0x12, 0x02, 0x00 }, { 0x22, 0x03, 0x01 }, + { 0 } /* TERMINATING ENTRY */ +}; + +static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 }; +/* values to write to soundcard register for all samplerates */ +static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01}; +static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00}; + +static DECLARE_TLV_DB_MINMAX(tlv_output, -9000, 0); +static DECLARE_TLV_DB_MINMAX(tlv_input, -1500, 1500); + +enum { + DIGITAL_THRU_ONLY_SAMPLERATE = 3 +}; + +static void usb6fire_control_output_vol_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + int i; + + if (comm_rt) + for (i = 0; i < 6; i++) + if (!(rt->ovol_updated & (1 << i))) { + comm_rt->write8(comm_rt, 0x12, 0x0f + i, + 180 - rt->output_vol[i]); + rt->ovol_updated |= 1 << i; + } +} + +static void usb6fire_control_output_mute_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + + if (comm_rt) + comm_rt->write8(comm_rt, 0x12, 0x0e, ~rt->output_mute); +} + +static void usb6fire_control_input_vol_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + int i; + + if (comm_rt) + for (i = 0; i < 2; i++) + if (!(rt->ivol_updated & (1 << i))) { + comm_rt->write8(comm_rt, 0x12, 0x1c + i, + rt->input_vol[i] & 0x3f); + rt->ivol_updated |= 1 << i; + } +} + +static void usb6fire_control_line_phono_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + if (comm_rt) { + comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch); + comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch); + } +} + +static void usb6fire_control_opt_coax_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + if (comm_rt) { + comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch); + comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch); + } +} + +static int usb6fire_control_set_rate(struct control_runtime *rt, int rate) +{ + int ret; + struct usb_device *device = rt->chip->dev; + struct comm_runtime *comm_rt = rt->chip->comm; + + if (rate < 0 || rate >= CONTROL_N_RATES) + return -EINVAL; + + ret = usb_set_interface(device, 1, rates_altsetting[rate]); + if (ret < 0) + return ret; + + /* set soundcard clock */ + ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rate], + rates_6fire_vh[rate]); + if (ret < 0) + return ret; + + return 0; +} + +static int usb6fire_control_set_channels( + struct control_runtime *rt, int n_analog_out, + int n_analog_in, bool spdif_out, bool spdif_in) +{ + int ret; + struct comm_runtime *comm_rt = rt->chip->comm; + + /* enable analog inputs and outputs + * (one bit per stereo-channel) */ + ret = comm_rt->write16(comm_rt, 0x02, 0x02, + (1 << (n_analog_out / 2)) - 1, + (1 << (n_analog_in / 2)) - 1); + if (ret < 0) + return ret; + + /* disable digital inputs and outputs */ + /* TODO: use spdif_x to enable/disable digital channels */ + ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00); + if (ret < 0) + return ret; + + return 0; +} + +static int usb6fire_control_streaming_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + + if (comm_rt) { + if (!rt->usb_streaming && rt->digital_thru_switch) + usb6fire_control_set_rate(rt, + DIGITAL_THRU_ONLY_SAMPLERATE); + return comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, + (rt->usb_streaming ? 0x01 : 0x00) | + (rt->digital_thru_switch ? 0x08 : 0x00)); + } + return -EINVAL; +} + +static int usb6fire_control_output_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 180; + return 0; +} + +static int usb6fire_control_output_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + int changed = 0; + + if (ch > 4) { + dev_err(&rt->chip->dev->dev, + "Invalid channel in volume control."); + return -EINVAL; + } + + if (rt->output_vol[ch] != ucontrol->value.integer.value[0]) { + rt->output_vol[ch] = ucontrol->value.integer.value[0]; + rt->ovol_updated &= ~(1 << ch); + changed = 1; + } + if (rt->output_vol[ch + 1] != ucontrol->value.integer.value[1]) { + rt->output_vol[ch + 1] = ucontrol->value.integer.value[1]; + rt->ovol_updated &= ~(2 << ch); + changed = 1; + } + + if (changed) + usb6fire_control_output_vol_update(rt); + + return changed; +} + +static int usb6fire_control_output_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + + if (ch > 4) { + dev_err(&rt->chip->dev->dev, + "Invalid channel in volume control."); + return -EINVAL; + } + + ucontrol->value.integer.value[0] = rt->output_vol[ch]; + ucontrol->value.integer.value[1] = rt->output_vol[ch + 1]; + return 0; +} + +static int usb6fire_control_output_mute_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + u8 old = rt->output_mute; + u8 value = 0; + + if (ch > 4) { + dev_err(&rt->chip->dev->dev, + "Invalid channel in volume control."); + return -EINVAL; + } + + rt->output_mute &= ~(3 << ch); + if (ucontrol->value.integer.value[0]) + value |= 1; + if (ucontrol->value.integer.value[1]) + value |= 2; + rt->output_mute |= value << ch; + + if (rt->output_mute != old) + usb6fire_control_output_mute_update(rt); + + return rt->output_mute != old; +} + +static int usb6fire_control_output_mute_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + u8 value = rt->output_mute >> ch; + + if (ch > 4) { + dev_err(&rt->chip->dev->dev, + "Invalid channel in volume control."); + return -EINVAL; + } + + ucontrol->value.integer.value[0] = 1 & value; + value >>= 1; + ucontrol->value.integer.value[1] = 1 & value; + + return 0; +} + +static int usb6fire_control_input_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 30; + return 0; +} + +static int usb6fire_control_input_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + + if (rt->input_vol[0] != ucontrol->value.integer.value[0]) { + rt->input_vol[0] = ucontrol->value.integer.value[0] - 15; + rt->ivol_updated &= ~(1 << 0); + changed = 1; + } + if (rt->input_vol[1] != ucontrol->value.integer.value[1]) { + rt->input_vol[1] = ucontrol->value.integer.value[1] - 15; + rt->ivol_updated &= ~(1 << 1); + changed = 1; + } + + if (changed) + usb6fire_control_input_vol_update(rt); + + return changed; +} + +static int usb6fire_control_input_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = rt->input_vol[0] + 15; + ucontrol->value.integer.value[1] = rt->input_vol[1] + 15; + + return 0; +} + +static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + return snd_ctl_enum_info(uinfo, 1, 2, line_phono_texts); +} + +static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + if (rt->line_phono_switch != ucontrol->value.integer.value[0]) { + rt->line_phono_switch = ucontrol->value.integer.value[0]; + usb6fire_control_line_phono_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.integer.value[0] = rt->line_phono_switch; + return 0; +} + +static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + return snd_ctl_enum_info(uinfo, 1, 2, opt_coax_texts); +} + +static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + + if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) { + rt->opt_coax_switch = ucontrol->value.enumerated.item[0]; + usb6fire_control_opt_coax_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.enumerated.item[0] = rt->opt_coax_switch; + return 0; +} + +static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + + if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) { + rt->digital_thru_switch = ucontrol->value.integer.value[0]; + usb6fire_control_streaming_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.integer.value[0] = rt->digital_thru_switch; + return 0; +} + +static struct snd_kcontrol_new vol_elements[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Volume", + .index = 0, + .private_value = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = usb6fire_control_output_vol_info, + .get = usb6fire_control_output_vol_get, + .put = usb6fire_control_output_vol_put, + .tlv = { .p = tlv_output } + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Volume", + .index = 1, + .private_value = 2, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = usb6fire_control_output_vol_info, + .get = usb6fire_control_output_vol_get, + .put = usb6fire_control_output_vol_put, + .tlv = { .p = tlv_output } + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Volume", + .index = 2, + .private_value = 4, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = usb6fire_control_output_vol_info, + .get = usb6fire_control_output_vol_get, + .put = usb6fire_control_output_vol_put, + .tlv = { .p = tlv_output } + }, + {} +}; + +static struct snd_kcontrol_new mute_elements[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 0, + .private_value = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 1, + .private_value = 2, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 2, + .private_value = 4, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + {} +}; + +static struct snd_kcontrol_new elements[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Line/Phono Capture Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = usb6fire_control_line_phono_info, + .get = usb6fire_control_line_phono_get, + .put = usb6fire_control_line_phono_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Opt/Coax Capture Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = usb6fire_control_opt_coax_info, + .get = usb6fire_control_opt_coax_get, + .put = usb6fire_control_opt_coax_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Digital Thru Playback Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_mono_info, + .get = usb6fire_control_digital_thru_get, + .put = usb6fire_control_digital_thru_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Capture Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = usb6fire_control_input_vol_info, + .get = usb6fire_control_input_vol_get, + .put = usb6fire_control_input_vol_put, + .tlv = { .p = tlv_input } + }, + {} +}; + +static int usb6fire_control_add_virtual( + struct control_runtime *rt, + struct snd_card *card, + char *name, + struct snd_kcontrol_new *elems) +{ + int ret; + int i; + struct snd_kcontrol *vmaster = + snd_ctl_make_virtual_master(name, tlv_output); + struct snd_kcontrol *control; + + if (!vmaster) + return -ENOMEM; + ret = snd_ctl_add(card, vmaster); + if (ret < 0) + return ret; + + i = 0; + while (elems[i].name) { + control = snd_ctl_new1(&elems[i], rt); + if (!control) + return -ENOMEM; + ret = snd_ctl_add(card, control); + if (ret < 0) + return ret; + ret = snd_ctl_add_slave(vmaster, control); + if (ret < 0) + return ret; + i++; + } + return 0; +} + +int usb6fire_control_init(struct sfire_chip *chip) +{ + int i; + int ret; + struct control_runtime *rt = kzalloc(sizeof(struct control_runtime), + GFP_KERNEL); + struct comm_runtime *comm_rt = chip->comm; + + if (!rt) + return -ENOMEM; + + rt->chip = chip; + rt->update_streaming = usb6fire_control_streaming_update; + rt->set_rate = usb6fire_control_set_rate; + rt->set_channels = usb6fire_control_set_channels; + + i = 0; + while (init_data[i].type) { + comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg, + init_data[i].value); + i++; + } + + usb6fire_control_opt_coax_update(rt); + usb6fire_control_line_phono_update(rt); + usb6fire_control_output_vol_update(rt); + usb6fire_control_output_mute_update(rt); + usb6fire_control_input_vol_update(rt); + usb6fire_control_streaming_update(rt); + + ret = usb6fire_control_add_virtual(rt, chip->card, + "Master Playback Volume", vol_elements); + if (ret) { + dev_err(&chip->dev->dev, "cannot add control.\n"); + kfree(rt); + return ret; + } + ret = usb6fire_control_add_virtual(rt, chip->card, + "Master Playback Switch", mute_elements); + if (ret) { + dev_err(&chip->dev->dev, "cannot add control.\n"); + kfree(rt); + return ret; + } + + i = 0; + while (elements[i].name) { + ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt)); + if (ret < 0) { + kfree(rt); + dev_err(&chip->dev->dev, "cannot add control.\n"); + return ret; + } + i++; + } + + chip->control = rt; + return 0; +} + +void usb6fire_control_abort(struct sfire_chip *chip) +{} + +void usb6fire_control_destroy(struct sfire_chip *chip) +{ + kfree(chip->control); + chip->control = NULL; +} |