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/*
* 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[] = {
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