trix.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:12k
- /*
- * sound/trix.c
- *
- * Low level driver for the MediaTrix AudioTrix Pro
- * (MT-0002-PC Control Chip)
- *
- *
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
- * Version 2 (June 1991). See the "COPYING" file distributed with this software
- * for more info.
- *
- * Changes
- * Alan Cox Modularisation, cleanup.
- * Christoph Hellwig Adapted to module_init/module_exit
- * Arnaldo C. de Melo Got rid of attach_uart401
- */
-
- #include <linux/init.h>
- #include <linux/module.h>
- #include "sound_config.h"
- #include "sb.h"
- #include "sound_firmware.h"
- #include "ad1848.h"
- #include "mpu401.h"
- #include "trix_boot.h"
- static int kilroy_was_here = 0; /* Don't detect twice */
- static int sb_initialized = 0;
- static int mpu_initialized = 0;
- static int *trix_osp = NULL;
- static int mpu = 0;
- static int joystick=0;
- static unsigned char trix_read(int addr)
- {
- outb(((unsigned char) addr), 0x390); /* MT-0002-PC ASIC address */
- return inb(0x391); /* MT-0002-PC ASIC data */
- }
- static void trix_write(int addr, int data)
- {
- outb(((unsigned char) addr), 0x390); /* MT-0002-PC ASIC address */
- outb(((unsigned char) data), 0x391); /* MT-0002-PC ASIC data */
- }
- static void download_boot(int base)
- {
- int i = 0, n = trix_boot_len;
- if (trix_boot_len == 0)
- return;
- trix_write(0xf8, 0x00); /* ??????? */
- outb((0x01), base + 6); /* Clear the internal data pointer */
- outb((0x00), base + 6); /* Restart */
- /*
- * Write the boot code to the RAM upload/download register.
- * Each write increments the internal data pointer.
- */
- outb((0x01), base + 6); /* Clear the internal data pointer */
- outb((0x1A), 0x390); /* Select RAM download/upload port */
- for (i = 0; i < n; i++)
- outb((trix_boot[i]), 0x391);
- for (i = n; i < 10016; i++) /* Clear up to first 16 bytes of data RAM */
- outb((0x00), 0x391);
- outb((0x00), base + 6); /* Reset */
- outb((0x50), 0x390); /* ?????? */
- }
- static int trix_set_wss_port(struct address_info *hw_config)
- {
- unsigned char addr_bits;
- if (check_region(0x390, 2))
- {
- printk(KERN_ERR "AudioTrix: Config port I/O conflictn");
- return 0;
- }
- if (kilroy_was_here) /* Already initialized */
- return 0;
- if (trix_read(0x15) != 0x71) /* No ASIC signature */
- {
- MDB(printk(KERN_ERR "No AudioTrix ASIC signature foundn"));
- return 0;
- }
- kilroy_was_here = 1;
- /*
- * Reset some registers.
- */
- trix_write(0x13, 0);
- trix_write(0x14, 0);
- /*
- * Configure the ASIC to place the codec to the proper I/O location
- */
- switch (hw_config->io_base)
- {
- case 0x530:
- addr_bits = 0;
- break;
- case 0x604:
- addr_bits = 1;
- break;
- case 0xE80:
- addr_bits = 2;
- break;
- case 0xF40:
- addr_bits = 3;
- break;
- default:
- return 0;
- }
- trix_write(0x19, (trix_read(0x19) & 0x03) | addr_bits);
- return 1;
- }
- /*
- * Probe and attach routines for the Windows Sound System mode of
- * AudioTrix Pro
- */
- static int __init probe_trix_wss(struct address_info *hw_config)
- {
- int ret;
- /*
- * Check if the IO port returns valid signature. The original MS Sound
- * system returns 0x04 while some cards (AudioTrix Pro for example)
- * return 0x00.
- */
- if (check_region(hw_config->io_base, 8))
- {
- printk(KERN_ERR "AudioTrix: MSS I/O port conflict (%x)n", hw_config->io_base);
- return 0;
- }
- trix_osp = hw_config->osp;
- if (!trix_set_wss_port(hw_config))
- return 0;
- if ((inb(hw_config->io_base + 3) & 0x3f) != 0x00)
- {
- MDB(printk(KERN_ERR "No MSS signature detected on port 0x%xn", hw_config->io_base));
- return 0;
- }
- if (hw_config->irq > 11)
- {
- printk(KERN_ERR "AudioTrix: Bad WSS IRQ %dn", hw_config->irq);
- return 0;
- }
- if (hw_config->dma != 0 && hw_config->dma != 1 && hw_config->dma != 3)
- {
- printk(KERN_ERR "AudioTrix: Bad WSS DMA %dn", hw_config->dma);
- return 0;
- }
- if (hw_config->dma2 != -1 && hw_config->dma2 != hw_config->dma)
- if (hw_config->dma2 != 0 && hw_config->dma2 != 1 && hw_config->dma2 != 3)
- {
- printk(KERN_ERR "AudioTrix: Bad capture DMA %dn", hw_config->dma2);
- return 0;
- }
- /*
- * Check that DMA0 is not in use with a 8 bit board.
- */
- if (hw_config->dma == 0 && inb(hw_config->io_base + 3) & 0x80)
- {
- printk(KERN_ERR "AudioTrix: Can't use DMA0 with a 8 bit card slotn");
- return 0;
- }
- if (hw_config->irq > 7 && hw_config->irq != 9 && inb(hw_config->io_base + 3) & 0x80)
- {
- printk(KERN_ERR "AudioTrix: Can't use IRQ%d with a 8 bit card slotn", hw_config->irq);
- return 0;
- }
- ret = ad1848_detect(hw_config->io_base + 4, NULL, hw_config->osp);
- if (ret)
- {
- if(joystick==1)
- trix_write(0x15, 0x80);
- request_region(0x390, 2, "AudioTrix");
- }
- return ret;
- }
- static void __init attach_trix_wss(struct address_info *hw_config)
- {
- static unsigned char interrupt_bits[12] = {
- 0, 0, 0, 0, 0, 0, 0, 0x08, 0, 0x10, 0x18, 0x20
- };
- char bits;
- static unsigned char dma_bits[4] = {
- 1, 2, 0, 3
- };
- int config_port = hw_config->io_base + 0;
- int dma1 = hw_config->dma, dma2 = hw_config->dma2;
- int old_num_mixers = num_mixers;
- trix_osp = hw_config->osp;
- if (!kilroy_was_here)
- {
- DDB(printk("AudioTrix: Attach called but not probed yet???n"));
- return;
- }
-
- /*
- * Set the IRQ and DMA addresses.
- */
- bits = interrupt_bits[hw_config->irq];
- if (bits == 0)
- {
- printk("AudioTrix: Bad IRQ (%d)n", hw_config->irq);
- return;
- }
- outb((bits | 0x40), config_port);
- if (hw_config->dma2 == -1 || hw_config->dma2 == hw_config->dma)
- {
- bits |= dma_bits[dma1];
- dma2 = dma1;
- }
- else
- {
- unsigned char tmp;
- tmp = trix_read(0x13) & ~30;
- trix_write(0x13, tmp | 0x80 | (dma1 << 4));
- tmp = trix_read(0x14) & ~30;
- trix_write(0x14, tmp | 0x80 | (dma2 << 4));
- }
- outb((bits), config_port); /* Write IRQ+DMA setup */
- hw_config->slots[0] = ad1848_init("AudioTrix Pro", hw_config->io_base + 4,
- hw_config->irq,
- dma1,
- dma2,
- 0,
- hw_config->osp,
- THIS_MODULE);
- request_region(hw_config->io_base, 4, "MSS config");
- if (num_mixers > old_num_mixers) /* Mixer got installed */
- {
- AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE); /* Line in */
- AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD);
- AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH); /* OPL4 */
- AD1848_REROUTE(SOUND_MIXER_SPEAKER, SOUND_MIXER_ALTPCM); /* SB */
- }
- }
- static int __init probe_trix_sb(struct address_info *hw_config)
- {
- int tmp;
- unsigned char conf;
- static signed char irq_translate[] = {
- -1, -1, -1, 0, 1, 2, -1, 3
- };
- if (trix_boot_len == 0)
- return 0; /* No boot code -> no fun */
- if (!kilroy_was_here)
- return 0; /* AudioTrix Pro has not been detected earlier */
- if (sb_initialized)
- return 0;
- if (check_region(hw_config->io_base, 16))
- {
- printk(KERN_ERR "AudioTrix: SB I/O port conflict (%x)n", hw_config->io_base);
- return 0;
- }
- if ((hw_config->io_base & 0xffffff8f) != 0x200)
- return 0;
- tmp = hw_config->irq;
- if (tmp > 7)
- return 0;
- if (irq_translate[tmp] == -1)
- return 0;
- tmp = hw_config->dma;
- if (tmp != 1 && tmp != 3)
- return 0;
- conf = 0x84; /* DMA and IRQ enable */
- conf |= hw_config->io_base & 0x70; /* I/O address bits */
- conf |= irq_translate[hw_config->irq];
- if (hw_config->dma == 3)
- conf |= 0x08;
- trix_write(0x1b, conf);
- download_boot(hw_config->io_base);
- sb_initialized = 1;
- hw_config->name = "AudioTrix SB";
- return sb_dsp_detect(hw_config, 0, 0, NULL);
- }
- static void __init attach_trix_sb(struct address_info *hw_config)
- {
- extern int sb_be_quiet;
- int old_quiet;
- hw_config->driver_use_1 = SB_NO_MIDI | SB_NO_MIXER | SB_NO_RECORDING;
- /* Prevent false alarms */
- old_quiet = sb_be_quiet;
- sb_be_quiet = 1;
- sb_dsp_init(hw_config, THIS_MODULE);
- sb_be_quiet = old_quiet;
- }
- static int __init probe_trix_mpu(struct address_info *hw_config)
- {
- unsigned char conf;
- static int irq_bits[] = {
- -1, -1, -1, 1, 2, 3, -1, 4, -1, 5
- };
- if (!kilroy_was_here)
- {
- DDB(printk("Trix: WSS and SB modes must be initialized before MPUn"));
- return 0; /* AudioTrix Pro has not been detected earlier */
- }
- if (!sb_initialized)
- {
- DDB(printk("Trix: SB mode must be initialized before MPUn"));
- return 0;
- }
- if (mpu_initialized)
- {
- DDB(printk("Trix: MPU mode already initializedn"));
- return 0;
- }
- if (hw_config->irq > 9)
- {
- printk(KERN_ERR "AudioTrix: Bad MPU IRQ %dn", hw_config->irq);
- return 0;
- }
- if (irq_bits[hw_config->irq] == -1)
- {
- printk(KERN_ERR "AudioTrix: Bad MPU IRQ %dn", hw_config->irq);
- return 0;
- }
- switch (hw_config->io_base)
- {
- case 0x330:
- conf = 0x00;
- break;
- case 0x370:
- conf = 0x04;
- break;
- case 0x3b0:
- conf = 0x08;
- break;
- case 0x3f0:
- conf = 0x0c;
- break;
- default:
- return 0; /* Invalid port */
- }
- conf |= irq_bits[hw_config->irq] << 4;
- trix_write(0x19, (trix_read(0x19) & 0x83) | conf);
- mpu_initialized = 1;
- hw_config->name = "AudioTrix Pro";
- return probe_uart401(hw_config, THIS_MODULE);
- }
- static void __exit unload_trix_wss(struct address_info *hw_config)
- {
- int dma2 = hw_config->dma2;
- if (dma2 == -1)
- dma2 = hw_config->dma;
- release_region(0x390, 2);
- release_region(hw_config->io_base, 4);
- ad1848_unload(hw_config->io_base + 4,
- hw_config->irq,
- hw_config->dma,
- dma2,
- 0);
- sound_unload_audiodev(hw_config->slots[0]);
- }
- static inline void __exit unload_trix_mpu(struct address_info *hw_config)
- {
- unload_uart401(hw_config);
- }
- static inline void __exit unload_trix_sb(struct address_info *hw_config)
- {
- sb_dsp_unload(hw_config, mpu);
- }
- static struct address_info cfg;
- static struct address_info cfg2;
- static struct address_info cfg_mpu;
- static int sb = 0;
- static int fw_load;
- static int __initdata io = -1;
- static int __initdata irq = -1;
- static int __initdata dma = -1;
- static int __initdata dma2 = -1; /* Set this for modules that need it */
- static int __initdata sb_io = -1;
- static int __initdata sb_dma = -1;
- static int __initdata sb_irq = -1;
- static int __initdata mpu_io = -1;
- static int __initdata mpu_irq = -1;
- MODULE_PARM(io,"i");
- MODULE_PARM(irq,"i");
- MODULE_PARM(dma,"i");
- MODULE_PARM(dma2,"i");
- MODULE_PARM(sb_io,"i");
- MODULE_PARM(sb_dma,"i");
- MODULE_PARM(sb_irq,"i");
- MODULE_PARM(mpu_io,"i");
- MODULE_PARM(mpu_irq,"i");
- MODULE_PARM(joystick, "i");
- static int __init init_trix(void)
- {
- printk(KERN_INFO "MediaTrix audio driver Copyright (C) by Hannu Savolainen 1993-1996n");
- cfg.io_base = io;
- cfg.irq = irq;
- cfg.dma = dma;
- cfg.dma2 = dma2;
- cfg2.io_base = sb_io;
- cfg2.irq = sb_irq;
- cfg2.dma = sb_dma;
- cfg_mpu.io_base = mpu_io;
- cfg_mpu.irq = mpu_irq;
- if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
- printk(KERN_INFO "I/O, IRQ, DMA and type are mandatoryn");
- return -EINVAL;
- }
- if (cfg2.io_base != -1 && (cfg2.irq == -1 || cfg2.dma == -1)) {
- printk(KERN_INFO "CONFIG_SB_IRQ and CONFIG_SB_DMA must be specified if SB_IO is set.n");
- return -EINVAL;
- }
- if (cfg_mpu.io_base != -1 && cfg_mpu.irq == -1) {
- printk(KERN_INFO "CONFIG_MPU_IRQ must be specified if MPU_IO is set.n");
- return -EINVAL;
- }
- if (!trix_boot)
- {
- fw_load = 1;
- trix_boot_len = mod_firmware_load("/etc/sound/trxpro.bin",
- (char **) &trix_boot);
- }
- if (!probe_trix_wss(&cfg))
- return -ENODEV;
- attach_trix_wss(&cfg);
- /*
- * We must attach in the right order to get the firmware
- * loaded up in time.
- */
- if (cfg2.io_base != -1) {
- sb = probe_trix_sb(&cfg2);
- if (sb)
- attach_trix_sb(&cfg2);
- }
-
- if (cfg_mpu.io_base != -1)
- mpu = probe_trix_mpu(&cfg_mpu);
- return 0;
- }
- static void __exit cleanup_trix(void)
- {
- if (fw_load && trix_boot)
- vfree(trix_boot);
- if (sb)
- unload_trix_sb(&cfg2);
- if (mpu)
- unload_trix_mpu(&cfg_mpu);
- unload_trix_wss(&cfg);
- }
- module_init(init_trix);
- module_exit(cleanup_trix);
- #ifndef MODULE
- static int __init setup_trix (char *str)
- {
- /* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, mpu_io, mpu_irq */
- int ints[9];
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
- io = ints[1];
- irq = ints[2];
- dma = ints[3];
- dma2 = ints[4];
- sb_io = ints[5];
- sb_irq = ints[6];
- sb_dma = ints[6];
- mpu_io = ints[7];
- mpu_irq = ints[8];
- return 1;
- }
- __setup("trix=", setup_trix);
- #endif
- MODULE_LICENSE("GPL");