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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [sound/] [trix.c] - Rev 1772
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/* * sound/trix.c * * Low level driver for the MediaTrix AudioTrix Pro * (MT-0002-PC Control Chip) */ /* * Copyright (C) by Hannu Savolainen 1993-1996 * * USS/Lite 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. */ #include <linux/config.h> #include "sound_config.h" #include "sb.h" #if defined(CONFIG_TRIX) #ifdef INCLUDE_TRIX_BOOT #include "trix_boot.h" #else static unsigned char *trix_boot = NULL; static int trix_boot_len = 0; #endif 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 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 ("AudioTrix: Config port I/O conflict\n"); return 0; } if (kilroy_was_here) /* Already initialized */ return 0; if (trix_read (0x15) != 0x71) /* No ASIC signature */ { DDB (printk ("No AudioTrix ASIC signature found\n")); 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 */ int 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 ("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) { DDB (printk ("No MSS signature detected on port 0x%x\n", hw_config->io_base)); return 0; } if (hw_config->irq > 11) { printk ("AudioTrix: Bad WSS IRQ %d\n", hw_config->irq); return 0; } if (hw_config->dma != 0 && hw_config->dma != 1 && hw_config->dma != 3) { printk ("AudioTrix: Bad WSS DMA %d\n", hw_config->dma); return 0; } if (hw_config->dma2 != -1) if (hw_config->dma2 != 0 && hw_config->dma2 != 1 && hw_config->dma2 != 3) { printk ("AudioTrix: Bad capture DMA %d\n", 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 ("AudioTrix: Can't use DMA0 with a 8 bit card\n"); return 0; } if (hw_config->irq > 7 && hw_config->irq != 9 && inb (hw_config->io_base + 3) & 0x80) { printk ("AudioTrix: Can't use IRQ%d with a 8 bit card\n", hw_config->irq); return 0; } ret = ad1848_detect (hw_config->io_base + 4, NULL, hw_config->osp); if (ret) request_region (0x390, 2, "AudioTrix"); return ret; } void 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; 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 */ ad1848_init ("AudioTrix Pro", hw_config->io_base + 4, hw_config->irq, dma1, dma2, 0, hw_config->osp); request_region (hw_config->io_base, 4, "MSS config"); } int probe_trix_sb (struct address_info *hw_config) { int tmp; unsigned char conf; static 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 ("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"; #ifdef CONFIG_SBDSP return probe_sb (hw_config); #else return 0; #endif } void attach_trix_sb (struct address_info *hw_config) { #ifdef CONFIG_SBDSP hw_config->driver_use_1 = SB_NO_MIDI | SB_NO_MIXER | SB_NO_RECORDING; attach_sb_card (hw_config); #endif } void attach_trix_mpu (struct address_info *hw_config) { #if defined(CONFIG_UART401) && defined(CONFIG_MIDI) hw_config->name = "AudioTrix Pro"; attach_uart401 (hw_config); #endif } int probe_trix_mpu (struct address_info *hw_config) { #if defined(CONFIG_UART401) && defined(CONFIG_MIDI) unsigned char conf; static char 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 MPU\n")); return 0; /* AudioTrix Pro has not been detected earlier */ } if (!sb_initialized) { DDB (printk ("Trix: SB mode must be initialized before MPU\n")); return 0; } if (mpu_initialized) { DDB (printk ("Trix: MPU mode already initialized\n")); return 0; } if (check_region (hw_config->io_base, 4)) { printk ("AudioTrix: MPU I/O port conflict (%x)\n", hw_config->io_base); return 0; } if (hw_config->irq > 9) { printk ("AudioTrix: Bad MPU IRQ %d\n", hw_config->irq); return 0; } if (irq_bits[hw_config->irq] == -1) { printk ("AudioTrix: Bad MPU IRQ %d\n", 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; return probe_uart401 (hw_config); #else return 0; #endif } void 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); } void unload_trix_mpu (struct address_info *hw_config) { #if defined(CONFIG_UART401) && defined(CONFIG_MIDI) unload_uart401 (hw_config); #endif } void unload_trix_sb (struct address_info *hw_config) { #ifdef CONFIG_SBDSP unload_sb (hw_config); #endif } #endif
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