diff options
Diffstat (limited to 'kernel/sound/isa/cmi8328.c')
| -rw-r--r-- | kernel/sound/isa/cmi8328.c | 483 |
1 files changed, 483 insertions, 0 deletions
diff --git a/kernel/sound/isa/cmi8328.c b/kernel/sound/isa/cmi8328.c new file mode 100644 index 000000000..2c89d95da --- /dev/null +++ b/kernel/sound/isa/cmi8328.c @@ -0,0 +1,483 @@ +/* + * Driver for C-Media CMI8328-based soundcards, such as AudioExcel AV500 + * Copyright (c) 2012 Ondrej Zary + * + * AudioExcel AV500 card consists of: + * - CMI8328 - main chip (SB Pro emulation, gameport, OPL3, MPU401, CD-ROM) + * - CS4231A - WSS codec + * - Dream SAM9233+GMS950400+RAM+ROM: Wavetable MIDI, connected to MPU401 + */ + +#include <linux/init.h> +#include <linux/isa.h> +#include <linux/module.h> +#include <linux/gameport.h> +#include <asm/dma.h> +#include <sound/core.h> +#include <sound/wss.h> +#include <sound/opl3.h> +#include <sound/mpu401.h> +#define SNDRV_LEGACY_FIND_FREE_IOPORT +#define SNDRV_LEGACY_FIND_FREE_IRQ +#define SNDRV_LEGACY_FIND_FREE_DMA +#include <sound/initval.h> + +MODULE_AUTHOR("Ondrej Zary <linux@rainbow-software.org>"); +MODULE_DESCRIPTION("C-Media CMI8328"); +MODULE_LICENSE("GPL"); + +#if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE) +#define SUPPORT_JOYSTICK 1 +#endif + +/* I/O port is configured by jumpers on the card to one of these */ +static int cmi8328_ports[] = { 0x530, 0xe80, 0xf40, 0x604 }; +#define CMI8328_MAX ARRAY_SIZE(cmi8328_ports) + +static int index[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = -1}; +static char *id[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = NULL}; +static long port[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT}; +static int irq[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ}; +static int dma1[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA}; +static int dma2[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA}; +static long mpuport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT}; +static int mpuirq[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ}; +#ifdef SUPPORT_JOYSTICK +static bool gameport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = true}; +#endif + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for CMI8328 soundcard."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for CMI8328 soundcard."); + +module_param_array(port, long, NULL, 0444); +MODULE_PARM_DESC(port, "Port # for CMI8328 driver."); +module_param_array(irq, int, NULL, 0444); +MODULE_PARM_DESC(irq, "IRQ # for CMI8328 driver."); +module_param_array(dma1, int, NULL, 0444); +MODULE_PARM_DESC(dma1, "DMA1 for CMI8328 driver."); +module_param_array(dma2, int, NULL, 0444); +MODULE_PARM_DESC(dma2, "DMA2 for CMI8328 driver."); + +module_param_array(mpuport, long, NULL, 0444); +MODULE_PARM_DESC(mpuport, "MPU-401 port # for CMI8328 driver."); +module_param_array(mpuirq, int, NULL, 0444); +MODULE_PARM_DESC(mpuirq, "IRQ # for CMI8328 MPU-401 port."); +#ifdef SUPPORT_JOYSTICK +module_param_array(gameport, bool, NULL, 0444); +MODULE_PARM_DESC(gameport, "Enable gameport."); +#endif + +struct snd_cmi8328 { + u16 port; + u8 cfg[3]; + u8 wss_cfg; + struct snd_card *card; + struct snd_wss *wss; +#ifdef SUPPORT_JOYSTICK + struct gameport *gameport; +#endif +}; + +/* CMI8328 configuration registers */ +#define CFG1 0x61 +#define CFG1_SB_DISABLE (1 << 0) +#define CFG1_GAMEPORT (1 << 1) +/* + * bit 0: SB: 0=enabled, 1=disabled + * bit 1: gameport: 0=disabled, 1=enabled + * bits 2-4: SB IRQ: 001=3, 010=5, 011=7, 100=9, 101=10, 110=11 + * bits 5-6: SB DMA: 00=disabled (when SB disabled), 01=DMA0, 10=DMA1, 11=DMA3 + * bit 7: SB port: 0=0x220, 1=0x240 + */ +#define CFG2 0x62 +#define CFG2_MPU_ENABLE (1 << 2) +/* + * bits 0-1: CD-ROM mode: 00=disabled, 01=Panasonic, 10=Sony/Mitsumi/Wearnes, + 11=IDE + * bit 2: MPU401: 0=disabled, 1=enabled + * bits 3-4: MPU401 IRQ: 00=3, 01=5, 10=7, 11=9, + * bits 5-7: MPU401 port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x332, + 101=0x334, 110=0x336 + */ +#define CFG3 0x63 +/* + * bits 0-2: CD-ROM IRQ: 000=disabled, 001=3, 010=5, 011=7, 100=9, 101=10, + 110=11 + * bits 3-4: CD-ROM DMA: 00=disabled, 01=DMA0, 10=DMA1, 11=DMA3 + * bits 5-7: CD-ROM port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x340, + 101=0x350, 110=0x360, 111=0x370 + */ + +static u8 snd_cmi8328_cfg_read(u16 port, u8 reg) +{ + outb(0x43, port + 3); + outb(0x21, port + 3); + outb(reg, port + 3); + return inb(port); +} + +static void snd_cmi8328_cfg_write(u16 port, u8 reg, u8 val) +{ + outb(0x43, port + 3); + outb(0x21, port + 3); + outb(reg, port + 3); + outb(val, port + 3); /* yes, value goes to the same port as index */ +} + +#ifdef CONFIG_PM +static void snd_cmi8328_cfg_save(u16 port, u8 cfg[]) +{ + cfg[0] = snd_cmi8328_cfg_read(port, CFG1); + cfg[1] = snd_cmi8328_cfg_read(port, CFG2); + cfg[2] = snd_cmi8328_cfg_read(port, CFG3); +} + +static void snd_cmi8328_cfg_restore(u16 port, u8 cfg[]) +{ + snd_cmi8328_cfg_write(port, CFG1, cfg[0]); + snd_cmi8328_cfg_write(port, CFG2, cfg[1]); + snd_cmi8328_cfg_write(port, CFG3, cfg[2]); +} +#endif /* CONFIG_PM */ + +static int snd_cmi8328_mixer(struct snd_wss *chip) +{ + struct snd_card *card; + struct snd_ctl_elem_id id1, id2; + int err; + + card = chip->card; + + memset(&id1, 0, sizeof(id1)); + memset(&id2, 0, sizeof(id2)); + id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + /* rename AUX0 switch to CD */ + strcpy(id1.name, "Aux Playback Switch"); + strcpy(id2.name, "CD Playback Switch"); + err = snd_ctl_rename_id(card, &id1, &id2); + if (err < 0) { + snd_printk(KERN_ERR "error renaming control\n"); + return err; + } + /* rename AUX0 volume to CD */ + strcpy(id1.name, "Aux Playback Volume"); + strcpy(id2.name, "CD Playback Volume"); + err = snd_ctl_rename_id(card, &id1, &id2); + if (err < 0) { + snd_printk(KERN_ERR "error renaming control\n"); + return err; + } + /* rename AUX1 switch to Synth */ + strcpy(id1.name, "Aux Playback Switch"); + id1.index = 1; + strcpy(id2.name, "Synth Playback Switch"); + err = snd_ctl_rename_id(card, &id1, &id2); + if (err < 0) { + snd_printk(KERN_ERR "error renaming control\n"); + return err; + } + /* rename AUX1 volume to Synth */ + strcpy(id1.name, "Aux Playback Volume"); + id1.index = 1; + strcpy(id2.name, "Synth Playback Volume"); + err = snd_ctl_rename_id(card, &id1, &id2); + if (err < 0) { + snd_printk(KERN_ERR "error renaming control\n"); + return err; + } + + return 0; +} + +/* find index of an item in "-1"-ended array */ +int array_find(int array[], int item) +{ + int i; + + for (i = 0; array[i] != -1; i++) + if (array[i] == item) + return i; + + return -1; +} +/* the same for long */ +int array_find_l(long array[], long item) +{ + int i; + + for (i = 0; array[i] != -1; i++) + if (array[i] == item) + return i; + + return -1; +} + +static int snd_cmi8328_probe(struct device *pdev, unsigned int ndev) +{ + struct snd_card *card; + struct snd_opl3 *opl3; + struct snd_cmi8328 *cmi; +#ifdef SUPPORT_JOYSTICK + struct resource *res; +#endif + int err, pos; + static long mpu_ports[] = { 0x330, 0x300, 0x310, 0x320, 0x332, 0x334, + 0x336, -1 }; + static u8 mpu_port_bits[] = { 3, 0, 1, 2, 4, 5, 6 }; + static int mpu_irqs[] = { 9, 7, 5, 3, -1 }; + static u8 mpu_irq_bits[] = { 3, 2, 1, 0 }; + static int irqs[] = { 9, 10, 11, 7, -1 }; + static u8 irq_bits[] = { 2, 3, 4, 1 }; + static int dma1s[] = { 3, 1, 0, -1 }; + static u8 dma_bits[] = { 3, 2, 1 }; + static int dma2s[][2] = { {1, -1}, {0, -1}, {-1, -1}, {0, -1} }; + u16 port = cmi8328_ports[ndev]; + u8 val; + + /* 0xff is invalid configuration (but settable - hope it isn't set) */ + if (snd_cmi8328_cfg_read(port, CFG1) == 0xff) + return -ENODEV; + /* the SB disable bit must NEVER EVER be cleared or the WSS dies */ + snd_cmi8328_cfg_write(port, CFG1, CFG1_SB_DISABLE); + if (snd_cmi8328_cfg_read(port, CFG1) != CFG1_SB_DISABLE) + return -ENODEV; + /* disable everything first */ + snd_cmi8328_cfg_write(port, CFG2, 0); /* disable CDROM and MPU401 */ + snd_cmi8328_cfg_write(port, CFG3, 0); /* disable CDROM IRQ and DMA */ + + if (irq[ndev] == SNDRV_AUTO_IRQ) { + irq[ndev] = snd_legacy_find_free_irq(irqs); + if (irq[ndev] < 0) { + snd_printk(KERN_ERR "unable to find a free IRQ\n"); + return -EBUSY; + } + } + if (dma1[ndev] == SNDRV_AUTO_DMA) { + dma1[ndev] = snd_legacy_find_free_dma(dma1s); + if (dma1[ndev] < 0) { + snd_printk(KERN_ERR "unable to find a free DMA1\n"); + return -EBUSY; + } + } + if (dma2[ndev] == SNDRV_AUTO_DMA) { + dma2[ndev] = snd_legacy_find_free_dma(dma2s[dma1[ndev] % 4]); + if (dma2[ndev] < 0) { + snd_printk(KERN_WARNING "unable to find a free DMA2, full-duplex will not work\n"); + dma2[ndev] = -1; + } + } + /* configure WSS IRQ... */ + pos = array_find(irqs, irq[ndev]); + if (pos < 0) { + snd_printk(KERN_ERR "invalid IRQ %d\n", irq[ndev]); + return -EINVAL; + } + val = irq_bits[pos] << 3; + /* ...and DMA... */ + pos = array_find(dma1s, dma1[ndev]); + if (pos < 0) { + snd_printk(KERN_ERR "invalid DMA1 %d\n", dma1[ndev]); + return -EINVAL; + } + val |= dma_bits[pos]; + /* ...and DMA2 */ + if (dma2[ndev] >= 0 && dma1[ndev] != dma2[ndev]) { + pos = array_find(dma2s[dma1[ndev]], dma2[ndev]); + if (pos < 0) { + snd_printk(KERN_ERR "invalid DMA2 %d\n", dma2[ndev]); + return -EINVAL; + } + val |= 0x04; /* enable separate capture DMA */ + } + outb(val, port); + + err = snd_card_new(pdev, index[ndev], id[ndev], THIS_MODULE, + sizeof(struct snd_cmi8328), &card); + if (err < 0) + return err; + cmi = card->private_data; + cmi->card = card; + cmi->port = port; + cmi->wss_cfg = val; + + err = snd_wss_create(card, port + 4, -1, irq[ndev], dma1[ndev], + dma2[ndev], WSS_HW_DETECT, 0, &cmi->wss); + if (err < 0) + goto error; + + err = snd_wss_pcm(cmi->wss, 0); + if (err < 0) + goto error; + + err = snd_wss_mixer(cmi->wss); + if (err < 0) + goto error; + err = snd_cmi8328_mixer(cmi->wss); + if (err < 0) + goto error; + + if (snd_wss_timer(cmi->wss, 0) < 0) + snd_printk(KERN_WARNING "error initializing WSS timer\n"); + + if (mpuport[ndev] == SNDRV_AUTO_PORT) { + mpuport[ndev] = snd_legacy_find_free_ioport(mpu_ports, 2); + if (mpuport[ndev] < 0) + snd_printk(KERN_ERR "unable to find a free MPU401 port\n"); + } + if (mpuirq[ndev] == SNDRV_AUTO_IRQ) { + mpuirq[ndev] = snd_legacy_find_free_irq(mpu_irqs); + if (mpuirq[ndev] < 0) + snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n"); + } + /* enable and configure MPU401 */ + if (mpuport[ndev] > 0 && mpuirq[ndev] > 0) { + val = CFG2_MPU_ENABLE; + pos = array_find_l(mpu_ports, mpuport[ndev]); + if (pos < 0) + snd_printk(KERN_WARNING "invalid MPU401 port 0x%lx\n", + mpuport[ndev]); + else { + val |= mpu_port_bits[pos] << 5; + pos = array_find(mpu_irqs, mpuirq[ndev]); + if (pos < 0) + snd_printk(KERN_WARNING "invalid MPU401 IRQ %d\n", + mpuirq[ndev]); + else { + val |= mpu_irq_bits[pos] << 3; + snd_cmi8328_cfg_write(port, CFG2, val); + if (snd_mpu401_uart_new(card, 0, + MPU401_HW_MPU401, mpuport[ndev], + 0, mpuirq[ndev], NULL) < 0) + snd_printk(KERN_ERR "error initializing MPU401\n"); + } + } + } + /* OPL3 is hardwired to 0x388 and cannot be disabled */ + if (snd_opl3_create(card, 0x388, 0x38a, OPL3_HW_AUTO, 0, &opl3) < 0) + snd_printk(KERN_ERR "error initializing OPL3\n"); + else + if (snd_opl3_hwdep_new(opl3, 0, 1, NULL) < 0) + snd_printk(KERN_WARNING "error initializing OPL3 hwdep\n"); + + strcpy(card->driver, "CMI8328"); + strcpy(card->shortname, "C-Media CMI8328"); + sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d,%d", + card->shortname, cmi->wss->port, irq[ndev], dma1[ndev], + (dma2[ndev] >= 0) ? dma2[ndev] : dma1[ndev]); + + dev_set_drvdata(pdev, card); + err = snd_card_register(card); + if (err < 0) + goto error; +#ifdef SUPPORT_JOYSTICK + if (!gameport[ndev]) + return 0; + /* gameport is hardwired to 0x200 */ + res = request_region(0x200, 8, "CMI8328 gameport"); + if (!res) + snd_printk(KERN_WARNING "unable to allocate gameport I/O port\n"); + else { + struct gameport *gp = cmi->gameport = gameport_allocate_port(); + if (!cmi->gameport) + release_and_free_resource(res); + else { + gameport_set_name(gp, "CMI8328 Gameport"); + gameport_set_phys(gp, "%s/gameport0", dev_name(pdev)); + gameport_set_dev_parent(gp, pdev); + gp->io = 0x200; + gameport_set_port_data(gp, res); + /* Enable gameport */ + snd_cmi8328_cfg_write(port, CFG1, + CFG1_SB_DISABLE | CFG1_GAMEPORT); + gameport_register_port(gp); + } + } +#endif + return 0; +error: + snd_card_free(card); + + return err; +} + +static int snd_cmi8328_remove(struct device *pdev, unsigned int dev) +{ + struct snd_card *card = dev_get_drvdata(pdev); + struct snd_cmi8328 *cmi = card->private_data; + +#ifdef SUPPORT_JOYSTICK + if (cmi->gameport) { + struct resource *res = gameport_get_port_data(cmi->gameport); + gameport_unregister_port(cmi->gameport); + release_and_free_resource(res); + } +#endif + /* disable everything */ + snd_cmi8328_cfg_write(cmi->port, CFG1, CFG1_SB_DISABLE); + snd_cmi8328_cfg_write(cmi->port, CFG2, 0); + snd_cmi8328_cfg_write(cmi->port, CFG3, 0); + snd_card_free(card); + return 0; +} + +#ifdef CONFIG_PM +static int snd_cmi8328_suspend(struct device *pdev, unsigned int n, + pm_message_t state) +{ + struct snd_card *card = dev_get_drvdata(pdev); + struct snd_cmi8328 *cmi; + + if (!card) /* ignore absent devices */ + return 0; + cmi = card->private_data; + snd_cmi8328_cfg_save(cmi->port, cmi->cfg); + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); + snd_pcm_suspend_all(cmi->wss->pcm); + cmi->wss->suspend(cmi->wss); + + return 0; +} + +static int snd_cmi8328_resume(struct device *pdev, unsigned int n) +{ + struct snd_card *card = dev_get_drvdata(pdev); + struct snd_cmi8328 *cmi; + + if (!card) /* ignore absent devices */ + return 0; + cmi = card->private_data; + snd_cmi8328_cfg_restore(cmi->port, cmi->cfg); + outb(cmi->wss_cfg, cmi->port); + cmi->wss->resume(cmi->wss); + snd_power_change_state(card, SNDRV_CTL_POWER_D0); + + return 0; +} +#endif + +static struct isa_driver snd_cmi8328_driver = { + .probe = snd_cmi8328_probe, + .remove = snd_cmi8328_remove, +#ifdef CONFIG_PM + .suspend = snd_cmi8328_suspend, + .resume = snd_cmi8328_resume, +#endif + .driver = { + .name = "cmi8328" + }, +}; + +static int __init alsa_card_cmi8328_init(void) +{ + return isa_register_driver(&snd_cmi8328_driver, CMI8328_MAX); +} + +static void __exit alsa_card_cmi8328_exit(void) +{ + isa_unregister_driver(&snd_cmi8328_driver); +} + +module_init(alsa_card_cmi8328_init) +module_exit(alsa_card_cmi8328_exit) |