From: Krzysztof Helt krzysztof.h1@wp.pl

This is port of the Gallant SC-6000 driver from the OSS aedsp16 driver. This card was also sold as AudioExcel DSP 16 and Zoltrix AV302 (Audio Plus True 16).

---

I ported only SC-6000 part from the OSS driver. PCM and CD output work. Mixer also works. I haven't tested recording.

If anybody has the SC-6600 card I can port this part as well, but I do not have hardware to test.

BTW. OSS driver does not work. Sound loops during play.

diff -urpN linux-2.6.23.orig/sound/isa/Kconfig linux-2.6.23/sound/isa/Kconfig --- linux-2.6.23.orig/sound/isa/Kconfig 2007-08-19 08:35:59.000000000 +0200 +++ linux-2.6.23/sound/isa/Kconfig 2007-09-01 08:59:15.526990235 +0200 @@ -191,6 +191,17 @@ config SND_ES18XX To compile this driver as a module, choose M here: the module will be called snd-es18xx.

+config SND_SC6000 + tristate "Gallant SC-6000, Audio Excel DSP 16" + depends on SND + select SND_AD1848_LIB + help + Say Y here to include support for Gallant SC-6000 card and + compatible soundcards: Audio Excel DSP 16 and Zoltrix AV302. + + To compile this driver as a module, choose M here: the module + will be called snd-sc6000. + config SND_GUS_SYNTH tristate

diff -urpN linux-2.6.23.orig/sound/isa/Makefile linux-2.6.23/sound/isa/Makefile --- linux-2.6.23.orig/sound/isa/Makefile 2007-07-09 01:32:17.000000000 +0200 +++ linux-2.6.23/sound/isa/Makefile 2007-09-01 08:59:45.872719539 +0200 @@ -10,6 +10,7 @@ snd-cmi8330-objs := cmi8330.o snd-dt019x-objs := dt019x.o snd-es18xx-objs := es18xx.o snd-opl3sa2-objs := opl3sa2.o +snd-sc6000-objs := sc6000.o snd-sgalaxy-objs := sgalaxy.o snd-sscape-objs := sscape.o

@@ -21,6 +22,7 @@ obj-$(CONFIG_SND_CMI8330) += snd-cmi8330 obj-$(CONFIG_SND_DT019X) += snd-dt019x.o obj-$(CONFIG_SND_ES18XX) += snd-es18xx.o obj-$(CONFIG_SND_OPL3SA2) += snd-opl3sa2.o +obj-$(CONFIG_SND_SC6000) += snd-sc6000.o obj-$(CONFIG_SND_SGALAXY) += snd-sgalaxy.o obj-$(CONFIG_SND_SSCAPE) += snd-sscape.o

diff -urpN linux-2.6.23.orig/sound/isa/sc6000.c linux-2.6.23/sound/isa/sc6000.c --- linux-2.6.23.orig/sound/isa/sc6000.c 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.23/sound/isa/sc6000.c 2007-09-01 09:00:48.480287340 +0200 @@ -0,0 +1,566 @@ +/* + * Driver for Gallant SC-6000 soundcard. This card is also known as + * Audio Excel DSP 16 or Zoltrix AV302. + * 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/isa.h> +#include <asm/dma.h> +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/ad1848.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 /* */ +#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 "sc-6000: " + +/* hardware dependent functions */ + +/* + * sc6000_irq_to_softcfg - Decode irq number into cfg code. + */ +static inline 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 inline 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 inline 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(int port) +{ + int loop = 1000; + unsigned char val = 0; + + do { + val = inb(port + DSP_DATAVAIL); + if (val & 0x80) + return 0; + cpu_relax(); + } while (loop--); + + return -EAGAIN; +} + +static inline int sc6000_read(int port) +{ + if (sc6000_wait_data(port)) + return -EBUSY; + + return inb(port + DSP_READ); + +} + +static __devinit int sc6000_write(int port, int cmd) +{ + unsigned char val; + int loop = 500000; + + do { + val = inb(port + DSP_STATUS); + /* + * DSP ready to receive data if bit 7 of val == 0 + */ + if (!(val & 0x80)) { + outb(cmd, port + DSP_COMMAND); + return 0; + } + cpu_relax(); + } while (loop--); + + snd_printk(KERN_ERR PFX "DSP Command (0x%x) timeout.\n", cmd); + + return -EAGAIN; +} + +static int __devinit sc6000_dsp_get_answer(int port, int command, char *data, + int data_len) +{ + int len = 0; + + if (sc6000_write(port, command)) { + snd_printk(KERN_ERR PFX "CMD 0x%x: failed!\n", command); + return -EFAULT; + } + + do { + int val = sc6000_read(port); + + 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 : -ENXIO; +} + +static int __devinit sc6000_dsp_reset(int port) +{ + outb(1, port + DSP_RESET); + udelay(10); + outb(0, port + DSP_RESET); + udelay(20); + if (sc6000_read(port) == 0xaa) + return 0; + return -EBUSY; +} + +/* detection and initialization */ +static int __devinit sc6000_cfg_write(int port, unsigned char softcfg) +{ + + if (sc6000_write(port, WRITE_MDIRQ_CFG)) { + snd_printk(KERN_ERR PFX "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG); + return -ENXIO; + } + if (sc6000_write(port, softcfg)) { + snd_printk(KERN_ERR PFX "sc6000_cfg_write: failed!\n"); + return -ENXIO; + } + return 0; +} + +static int __devinit sc6000_setup_board(int port, int config) +{ + int loop = 10; + + do { + if (sc6000_write(port, COMMAND_88)) { + snd_printk(KERN_ERR PFX "CMD 0x%x: failed!\n", + COMMAND_88); + return -ENXIO; + } + } while ((sc6000_wait_data(port) < 0) && loop--); + + if (sc6000_read(port) < 0) { + snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n", + COMMAND_88); + return -ENXIO; + } + + if (sc6000_cfg_write(port, config)) + return -EFAULT; + + return 0; +} + +static int __devinit sc6000_init_mss(int port, int config, int mss_port, + int mss_config) +{ + if (sc6000_write(port, DSP_INIT_MSS)) { + snd_printk(KERN_ERR PFX "sc6000_init_mss [0x%x]: failed!\n", + DSP_INIT_MSS); + return -ENXIO; + } + + mdelay(10); + + if (sc6000_cfg_write(port, config)) + return -ENXIO; + + outb(mss_config, mss_port); + + return 0; +} + +static int __devinit sc6000_init_board(int port, int irq, int dma, + int mss_port, int mpu_irq) +{ + char answer[15]; + int mss_config = sc6000_irq_to_softcfg(irq) | + sc6000_dma_to_softcfg(dma); + int config = mss_config | + sc6000_mpu_irq_to_softcfg(mpu_irq); + + if (sc6000_dsp_reset(port)) { + snd_printk(KERN_ERR PFX "sc6000_dsp_reset: failed!\n"); + return -EBUSY; + } + + if (sc6000_dsp_get_answer(port, GET_DSP_COPYRIGHT, answer, 15) <= 0) { + snd_printk(KERN_ERR PFX "sc6000_dsp_copyright: failed!\n"); + return -ENXIO; + } + /* + * My SC-6000 card return "SC-6000" in DSPCopyright, so + * if we have something different, we have to be warned. + */ + if (strcmp("SC-6000", answer)) + snd_printk(KERN_ERR PFX "Warning: non SC-6000 audio card!\n"); + + if (sc6000_dsp_get_answer(port, GET_DSP_VERSION, answer, 2) < 2) { + snd_printk(KERN_ERR PFX "sc6000_dsp_version: failed!\n"); + return -ENXIO; + } + + /* + * 0x0A == (IRQ 7, DMA 1, MIRQ 0) + */ + if (sc6000_cfg_write(port, 0x0a)) { + snd_printk(KERN_ERR PFX "sc6000_stdcfg: failed!\n"); + return -EFAULT; + } + + if (sc6000_setup_board(port, config) < 0) { + snd_printk(KERN_ERR PFX "sc6000_setup_board: failed!\n"); + return -ENODEV; + } + + if (sc6000_init_mss(port, config, mss_port, + mss_config) < 0) { + snd_printk(KERN_ERR PFX "Can not initialize" + "Microsoft Sound System mode.\n"); + return -ENODEV; + } + + return 0; +} + +static int __devinit snd_sc6000_detect(int dev, int irq, int dma) +{ + int err = -ENODEV; + + snd_printk(KERN_DEBUG PFX "Initializing BASE[0x%lx] IRQ[%d] " + "DMA[%d] MIRQ[%d]\n", + port[dev], irq, dma, mpu_irq[dev]); + +/* + * We must request the port region because these are the I/O + * ports to access card's control registers. + */ + if (!request_region(port[dev], 0x10, "sc-6000 (base)")) { + snd_printk(KERN_ERR PFX + "SC-6000 port I/O port region is already in use.\n"); + return -EBUSY; + } + + err = sc6000_init_board(port[dev], irq, dma, + mss_port[dev], mpu_irq[dev]); + + release_region(port[dev], 0x10); + + return err; +} + +static int __devinit snd_sc6000_mixer(struct snd_ad1848 *chip) +{ + struct snd_card *card = chip->card; + struct snd_ctl_elem_id id1, id2; + int err; + + memset(&id1, 0, sizeof(id1)); + memset(&id2, 0, sizeof(id2)); + id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + /* reassign AUX0 to FM */ + strcpy(id1.name, "Aux Playback Switch"); + strcpy(id2.name, "FM Playback Switch"); + err = snd_ctl_rename_id(card, &id1, &id2); + if (err < 0) + return err; + strcpy(id1.name, "Aux Playback Volume"); + strcpy(id2.name, "FM Playback Volume"); + err = snd_ctl_rename_id(card, &id1, &id2); + if (err < 0) + return err; + /* reassign AUX1 to CD */ + strcpy(id1.name, "Aux Playback Switch"); id1.index = 1; + strcpy(id2.name, "CD Playback Switch"); + err = snd_ctl_rename_id(card, &id1, &id2); + if (err < 0) + return err; + strcpy(id1.name, "Aux Playback Volume"); + strcpy(id2.name, "CD Playback Volume"); + err = snd_ctl_rename_id(card, &id1, &id2); + if (err < 0) + return err; + return 0; +} + +static int __devinit snd_sc6000_match(struct device *devptr, unsigned int dev) +{ + if (!enable[dev]) + return 0; + if (port[dev] == SNDRV_AUTO_PORT) { + printk(KERN_ERR PFX "specify IO port\n"); + return 0; + } + if (mss_port[dev] == SNDRV_AUTO_IRQ) { + printk(KERN_ERR PFX "specify MSS port\n"); + return 0; + } + return 1; +} + +static int __devinit snd_sc6000_probe(struct device *devptr, unsigned int dev) +{ + static int possible_irqs[] = { 7, 9, 10, 11, -1 }; + static int possible_dmas[] = { 1, 3, 0, -1 }; + int err; + int xirq = irq[dev]; + int xdma = dma[dev]; + struct snd_card *card; + struct snd_ad1848 *chip; + + card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); + if (card == NULL) + return -ENOMEM; + + if (xirq == SNDRV_AUTO_IRQ) { + xirq = snd_legacy_find_free_irq(possible_irqs); + if (xirq < 0) { + snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); + err = -EBUSY; + goto _err; + } + } + + if (xdma == SNDRV_AUTO_DMA) { + xdma = snd_legacy_find_free_dma(possible_dmas); + if (xdma < 0) { + snd_printk(KERN_ERR PFX "unable to find a free DMA\n"); + err = -EBUSY; + goto _err; + } + } + + err = snd_sc6000_detect(dev, xirq, xdma); + if (err < 0) + goto _err; + + err = snd_ad1848_create(card, mss_port[dev] + 4, xirq, xdma, + AD1848_HW_DETECT, &chip); + if (err < 0) + goto _err; + card->private_data = chip; + + err = snd_ad1848_pcm(chip, 0, NULL); + if (err < 0) { + snd_printk(KERN_ERR PFX + "error creating new ad1848 PCM device\n"); + goto _err; + } + err = snd_ad1848_mixer(chip); + if (err < 0) { + snd_printk(KERN_ERR PFX "error creating new ad1848 mixer\n"); + goto _err; + } + err = snd_sc6000_mixer(chip); + if (err < 0) { + snd_printk(KERN_ERR PFX "the mixer rewrite failed\n"); + goto _err; + } + + strcpy(card->driver, "Gallant SC-6000"); + strcpy(card->shortname, "Gallant SC-6000"); + sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d", + mss_port[dev], xirq, xdma); + + snd_card_set_dev(card, devptr); + + err = snd_card_register(card); + if (err < 0) + goto _err; + + dev_set_drvdata(devptr, card); + return 0; + + _err: + snd_card_free(card); + return err; +} + +static int __devexit snd_sc6000_remove(struct device *devptr, unsigned int dev) +{ + snd_card_free(dev_get_drvdata(devptr)); + dev_set_drvdata(devptr, NULL); + return 0; +} + +static struct isa_driver snd_sc6000_driver = { + .match = snd_sc6000_match, + .probe = snd_sc6000_probe, + .remove = __devexit_p(snd_sc6000_remove), + /* FIXME: suspend/resume */ + .driver = { + .name = "sc6000", + }, +}; + + +static int __init alsa_card_sc6000_init(void) +{ + return isa_register_driver(&snd_sc6000_driver, SNDRV_CARDS); +} + +static void __exit alsa_card_sc6000_exit(void) +{ + isa_unregister_driver(&snd_sc6000_driver); +} + +module_init(alsa_card_sc6000_init) +module_exit(alsa_card_sc6000_exit)