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|
/*
* Driver for Gallant SC-6000 soundcard. This card is also known as
* Audio Excel DSP 16 or Zoltrix AV302.
* These cards use CompuMedia ASC-9308 chip + AD1848 codec.
*
* Copyright (C) 2007 Krzysztof Helt <krzysztof.h1@wp.pl>
*
* I don't have documentation for this card. I used the driver
* for OSS/Free included in the kernel source as reference.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/isa.h>
#include <linux/io.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/wss.h>
#include <sound/opl3.h>
#include <sound/mpu401.h>
#include <sound/control.h>
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>
MODULE_AUTHOR("Krzysztof Helt");
MODULE_DESCRIPTION("Gallant SC-6000");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Gallant, SC-6000},"
"{AudioExcel, Audio Excel DSP 16},"
"{Zoltrix, AV302}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220, 0x240 */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5, 7, 9, 10, 11 */
static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530, 0xe80 */
static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
/* 0x300, 0x310, 0x320, 0x330 */
static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5, 7, 9, 10, 0 */
static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0, 1, 3 */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
module_param_array(port, long, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
module_param_array(mss_port, long, NULL, 0444);
MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
module_param_array(mpu_port, long, NULL, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
module_param_array(irq, int, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
module_param_array(mpu_irq, int, NULL, 0444);
MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
module_param_array(dma, int, NULL, 0444);
MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
/*
* Commands of SC6000's DSP (SBPRO+special).
* Some of them are COMMAND_xx, in the future they may change.
*/
#define WRITE_MDIRQ_CFG 0x50 /* Set M&I&DRQ mask (the real config) */
#define COMMAND_52 0x52 /* */
#define READ_HARD_CFG 0x58 /* Read Hardware Config (I/O base etc) */
#define COMMAND_5C 0x5c /* */
#define COMMAND_60 0x60 /* */
#define COMMAND_66 0x66 /* */
#define COMMAND_6C 0x6c /* */
#define COMMAND_6E 0x6e /* */
#define COMMAND_88 0x88 /* Unknown command */
#define DSP_INIT_MSS 0x8c /* Enable Microsoft Sound System mode */
#define COMMAND_C5 0xc5 /* */
#define GET_DSP_VERSION 0xe1 /* Get DSP Version */
#define GET_DSP_COPYRIGHT 0xe3 /* Get DSP Copyright */
/*
* Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
* to have the actual I/O port.
* Register permissions are:
* (wo) == Write Only
* (ro) == Read Only
* (w-) == Write
* (r-) == Read
*/
#define DSP_RESET 0x06 /* offset of DSP RESET (wo) */
#define DSP_READ 0x0a /* offset of DSP READ (ro) */
#define DSP_WRITE 0x0c /* offset of DSP WRITE (w-) */
#define DSP_COMMAND 0x0c /* offset of DSP COMMAND (w-) */
#define DSP_STATUS 0x0c /* offset of DSP STATUS (r-) */
#define DSP_DATAVAIL 0x0e /* offset of DSP DATA AVAILABLE (ro) */
#define PFX "sc6000: "
#define DRV_NAME "SC-6000"
/* hardware dependent functions */
/*
* sc6000_irq_to_softcfg - Decode irq number into cfg code.
*/
static __devinit unsigned char sc6000_irq_to_softcfg(int irq)
{
unsigned char val = 0;
switch (irq) {
case 5:
val = 0x28;
break;
case 7:
val = 0x8;
break;
case 9:
val = 0x10;
break;
case 10:
val = 0x18;
break;
case 11:
val = 0x20;
break;
default:
break;
}
return val;
}
/*
* sc6000_dma_to_softcfg - Decode dma number into cfg code.
*/
static __devinit unsigned char sc6000_dma_to_softcfg(int dma)
{
unsigned char val = 0;
switch (dma) {
case 0:
val = 1;
break;
case 1:
val = 2;
break;
case 3:
val = 3;
break;
default:
break;
}
return val;
}
/*
* sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
*/
static __devinit unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
{
unsigned char val = 0;
switch (mpu_irq) {
case 5:
val = 4;
break;
case 7:
val = 0x44;
break;
case 9:
val = 0x84;
break;
case 10:
val = 0xc4;
break;
default:
break;
}
return val;
}
static __devinit int sc6000_wait_data(char __iomem *vport)
{
int loop = 1000;
unsigned char val = 0;
do {
val = ioread8(vport + DSP_DATAVAIL);
if (val & 0x80)
return 0;
cpu_relax();
} while (loop--);
return -EAGAIN;
}
static __devinit int sc6000_read(char __iomem *vport)
{
if (sc6000_wait_data(vport))
return -EBUSY;
return ioread8(vport + DSP_READ);
}
static __devinit int sc6000_write(char __iomem *vport, int cmd)
{
unsigned char val;
int loop = 500000;
do {
val = ioread8(vport + DSP_STATUS);
/*
* DSP ready to receive data if bit 7 of val == 0
*/
if (!(val & 0x80)) {
iowrite8(cmd, vport + DSP_COMMAND);
return 0;
}
cpu_relax();
} while (loop--);
snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);
return -EIO;
}
static int __devinit sc6000_dsp_get_answer(char __iomem *vport, int command,
char *data, int data_len)
{
int len = 0;
if (sc6000_write(vport, command)) {
snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
return -EIO;
}
do {
int val = sc6000_read(vport);
if (val < 0)
break;
data[len++] = val;
} while (len < data_len);
/*
* If no more data available, return to the caller, no error if len>0.
* We have no other way to know when the string is finished.
*/
return len ? len : -EIO;
}
static int __devinit sc6000_dsp_reset(char
|