From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- sound/oss/mad16.c | 1097 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1097 insertions(+) create mode 100644 sound/oss/mad16.c (limited to 'sound/oss/mad16.c') diff --git a/sound/oss/mad16.c b/sound/oss/mad16.c new file mode 100644 index 00000000000..a7067f16991 --- /dev/null +++ b/sound/oss/mad16.c @@ -0,0 +1,1097 @@ +/* + * Copyright (C) by Hannu Savolainen 1993-1997 + * + * mad16.c + * + * Initialization code for OPTi MAD16 compatible audio chips. Including + * + * OPTi 82C928 MAD16 (replaced by C929) + * OAK OTI-601D Mozart + * OAK OTI-605 Mozart (later version with MPU401 Midi) + * OPTi 82C929 MAD16 Pro + * OPTi 82C930 + * OPTi 82C924 + * + * These audio interface chips don't produce sound themselves. They just + * connect some other components (OPL-[234] and a WSS compatible codec) + * to the PC bus and perform I/O, DMA and IRQ address decoding. There is + * also a UART for the MPU-401 mode (not 82C928/Mozart). + * The Mozart chip appears to be compatible with the 82C928, although later + * issues of the card, using the OTI-605 chip, have an MPU-401 compatible Midi + * port. This port is configured differently to that of the OPTi audio chips. + * + * Changes + * + * Alan Cox Clean up, added module selections. + * + * A. Wik Added support for Opti924 PnP. + * Improved debugging support. 16-May-1998 + * Fixed bug. 16-Jun-1998 + * + * Torsten Duwe Made Opti924 PnP support non-destructive + * 23-Dec-1998 + * + * Paul Grayson Added support for Midi on later Mozart cards. + * 25-Nov-1999 + * Christoph Hellwig Adapted to module_init/module_exit. + * Arnaldo C. de Melo got rid of attach_uart401 21-Sep-2000 + * + * Pavel Rabel Clean up Nov-2000 + */ + +#include +#include +#include +#include +#include +#include "sound_config.h" + +#include "ad1848.h" +#include "sb.h" +#include "mpu401.h" + +static int mad16_conf; +static int mad16_cdsel; +static struct gameport *gameport; +static DEFINE_SPINLOCK(lock); + +#define C928 1 +#define MOZART 2 +#define C929 3 +#define C930 4 +#define C924 5 + +/* + * Registers + * + * The MAD16 occupies I/O ports 0xf8d to 0xf93 (fixed locations). + * All ports are inactive by default. They can be activated by + * writing 0xE2 or 0xE3 to the password register. The password is valid + * only until the next I/O read or write. + * + * 82C930 uses 0xE4 as the password and indirect addressing to access + * the config registers. + */ + +#define MC0_PORT 0xf8c /* Dummy port */ +#define MC1_PORT 0xf8d /* SB address, CD-ROM interface type, joystick */ +#define MC2_PORT 0xf8e /* CD-ROM address, IRQ, DMA, plus OPL4 bit */ +#define MC3_PORT 0xf8f +#define PASSWD_REG 0xf8f +#define MC4_PORT 0xf90 +#define MC5_PORT 0xf91 +#define MC6_PORT 0xf92 +#define MC7_PORT 0xf93 +#define MC8_PORT 0xf94 +#define MC9_PORT 0xf95 +#define MC10_PORT 0xf96 +#define MC11_PORT 0xf97 +#define MC12_PORT 0xf98 + +static int board_type = C928; + +static int *mad16_osp; +static int c931_detected; /* minor differences from C930 */ +static char c924pnp; /* " " " C924 */ +static int debug; /* debugging output */ + +#ifdef DDB +#undef DDB +#endif +#define DDB(x) do {if (debug) x;} while (0) + +static unsigned char mad_read(int port) +{ + unsigned long flags; + unsigned char tmp; + + spin_lock_irqsave(&lock,flags); + + switch (board_type) /* Output password */ + { + case C928: + case MOZART: + outb((0xE2), PASSWD_REG); + break; + + case C929: + outb((0xE3), PASSWD_REG); + break; + + case C930: + /* outb(( 0xE4), PASSWD_REG); */ + break; + + case C924: + /* the c924 has its ports relocated by -128 if + PnP is enabled -aw */ + if (!c924pnp) + outb((0xE5), PASSWD_REG); else + outb((0xE5), PASSWD_REG - 0x80); + break; + } + + if (board_type == C930) + { + outb((port - MC0_PORT), 0xe0e); /* Write to index reg */ + tmp = inb(0xe0f); /* Read from data reg */ + } + else + if (!c924pnp) + tmp = inb(port); else + tmp = inb(port-0x80); + spin_unlock_irqrestore(&lock,flags); + + return tmp; +} + +static void mad_write(int port, int value) +{ + unsigned long flags; + + spin_lock_irqsave(&lock,flags); + + switch (board_type) /* Output password */ + { + case C928: + case MOZART: + outb((0xE2), PASSWD_REG); + break; + + case C929: + outb((0xE3), PASSWD_REG); + break; + + case C930: + /* outb(( 0xE4), PASSWD_REG); */ + break; + + case C924: + if (!c924pnp) + outb((0xE5), PASSWD_REG); else + outb((0xE5), PASSWD_REG - 0x80); + break; + } + + if (board_type == C930) + { + outb((port - MC0_PORT), 0xe0e); /* Write to index reg */ + outb(((unsigned char) (value & 0xff)), 0xe0f); + } + else + if (!c924pnp) + outb(((unsigned char) (value & 0xff)), port); else + outb(((unsigned char) (value & 0xff)), port-0x80); + spin_unlock_irqrestore(&lock,flags); +} + +static int __init detect_c930(void) +{ + unsigned char tmp = mad_read(MC1_PORT); + + if ((tmp & 0x06) != 0x06) + { + DDB(printk("Wrong C930 signature (%x)\n", tmp)); + /* return 0; */ + } + mad_write(MC1_PORT, 0); + + if (mad_read(MC1_PORT) != 0x06) + { + DDB(printk("Wrong C930 signature2 (%x)\n", tmp)); + /* return 0; */ + } + mad_write(MC1_PORT, tmp); /* Restore bits */ + + mad_write(MC7_PORT, 0); + if ((tmp = mad_read(MC7_PORT)) != 0) + { + DDB(printk("MC7 not writable (%x)\n", tmp)); + return 0; + } + mad_write(MC7_PORT, 0xcb); + if ((tmp = mad_read(MC7_PORT)) != 0xcb) + { + DDB(printk("MC7 not writable2 (%x)\n", tmp)); + return 0; + } + + tmp = mad_read(MC0_PORT+18); + if (tmp == 0xff || tmp == 0x00) + return 1; + /* We probably have a C931 */ + DDB(printk("Detected C931 config=0x%02x\n", tmp)); + c931_detected = 1; + + /* + * We cannot configure the chip if it is in PnP mode. + * If we have a CSN assigned (bit 8 in MC13) we first try + * a software reset, then a software power off, finally + * Clearing PnP mode. The last option is not + * Bit 8 in MC13 + */ + if ((mad_read(MC0_PORT+13) & 0x80) == 0) + return 1; + + /* Software reset */ + mad_write(MC9_PORT, 0x02); + mad_write(MC9_PORT, 0x00); + + if ((mad_read(MC0_PORT+13) & 0x80) == 0) + return 1; + + /* Power off, and on again */ + mad_write(MC9_PORT, 0xc2); + mad_write(MC9_PORT, 0xc0); + + if ((mad_read(MC0_PORT+13) & 0x80) == 0) + return 1; + +#if 0 + /* Force off PnP mode. This is not recommended because + * the PnP bios will not recognize the chip on the next + * warm boot and may assignd different resources to other + * PnP/PCI cards. + */ + mad_write(MC0_PORT+17, 0x04); +#endif + return 1; +} + +static int __init detect_mad16(void) +{ + unsigned char tmp, tmp2, bit; + int i, port; + + /* + * Check that reading a register doesn't return bus float (0xff) + * when the card is accessed using password. This may fail in case + * the card is in low power mode. Normally at least the power saving + * mode bit should be 0. + */ + + if ((tmp = mad_read(MC1_PORT)) == 0xff) + { + DDB(printk("MC1_PORT returned 0xff\n")); + return 0; + } + for (i = 0xf8d; i <= 0xf98; i++) + if (!c924pnp) + DDB(printk("Port %0x (init value) = %0x\n", i, mad_read(i))); + else + DDB(printk("Port %0x (init value) = %0x\n", i-0x80, mad_read(i))); + + if (board_type == C930) + return detect_c930(); + + /* + * Now check that the gate is closed on first I/O after writing + * the password. (This is how a MAD16 compatible card works). + */ + + if ((tmp2 = inb(MC1_PORT)) == tmp) /* It didn't close */ + { + DDB(printk("MC1_PORT didn't close after read (0x%02x)\n", tmp2)); + return 0; + } + + bit = (c924pnp) ? 0x20 : 0x80; + port = (c924pnp) ? MC2_PORT : MC1_PORT; + + tmp = mad_read(port); + mad_write(port, tmp ^ bit); /* Toggle a bit */ + if ((tmp2 = mad_read(port)) != (tmp ^ bit)) /* Compare the bit */ + { + mad_write(port, tmp); /* Restore */ + DDB(printk("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2)); + return 0; + } + mad_write(port, tmp); /* Restore */ + return 1; /* Bingo */ +} + +static int __init wss_init(struct address_info *hw_config) +{ + /* + * 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 ((inb(hw_config->io_base + 3) & 0x3f) != 0x04 && + (inb(hw_config->io_base + 3) & 0x3f) != 0x00) + { + DDB(printk("No MSS signature detected on port 0x%x (0x%x)\n", hw_config->io_base, inb(hw_config->io_base + 3))); + 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("MSS: Can't use DMA0 with a 8 bit card/slot\n"); + return 0; + } + if (hw_config->irq > 9 && inb(hw_config->io_base + 3) & 0x80) + printk(KERN_ERR "MSS: Can't use IRQ%d with a 8 bit card/slot\n", hw_config->irq); + return 1; +} + +static void __init init_c930(struct address_info *hw_config, int base) +{ + unsigned char cfg = 0; + + cfg |= (0x0f & mad16_conf); + + if(c931_detected) + { + /* Bit 0 has reversd meaning. Bits 1 and 2 sese + reversed on write. + Support only IDE cdrom. IDE port programmed + somewhere else. */ + cfg = (cfg & 0x09) ^ 0x07; + } + cfg |= base << 4; + mad_write(MC1_PORT, cfg); + + /* MC2 is CD configuration. Don't touch it. */ + + mad_write(MC3_PORT, 0); /* Disable SB mode IRQ and DMA */ + + /* bit 2 of MC4 reverses it's meaning between the C930 + and the C931. */ + cfg = c931_detected ? 0x04 : 0x00; + + if(mad16_cdsel & 0x20) + mad_write(MC4_PORT, 0x62|cfg); /* opl4 */ + else + mad_write(MC4_PORT, 0x52|cfg); /* opl3 */ + + mad_write(MC5_PORT, 0x3C); /* Init it into mode2 */ + mad_write(MC6_PORT, 0x02); /* Enable WSS, Disable MPU and SB */ + mad_write(MC7_PORT, 0xCB); + mad_write(MC10_PORT, 0x11); +} + +static int __init chip_detect(void) +{ + int i; + + /* + * Then try to detect with the old password + */ + board_type = C924; + + DDB(printk("Detect using password = 0xE5\n")); + + if (detect_mad16()) { + return 1; + } + + board_type = C928; + + DDB(printk("Detect using password = 0xE2\n")); + + if (detect_mad16()) + { + unsigned char model; + + if (((model = mad_read(MC3_PORT)) & 0x03) == 0x03) { + DDB(printk("mad16.c: Mozart detected\n")); + board_type = MOZART; + } else { + DDB(printk("mad16.c: 82C928 detected???\n")); + board_type = C928; + } + return 1; + } + + board_type = C929; + + DDB(printk("Detect using password = 0xE3\n")); + + if (detect_mad16()) + { + DDB(printk("mad16.c: 82C929 detected\n")); + return 1; + } + + if (inb(PASSWD_REG) != 0xff) + return 0; + + /* + * First relocate MC# registers to 0xe0e/0xe0f, disable password + */ + + outb((0xE4), PASSWD_REG); + outb((0x80), PASSWD_REG); + + board_type = C930; + + DDB(printk("Detect using password = 0xE4\n")); + + for (i = 0xf8d; i <= 0xf93; i++) + DDB(printk("port %03x = %02x\n", i, mad_read(i))); + + if(detect_mad16()) { + DDB(printk("mad16.c: 82C930 detected\n")); + return 1; + } + + /* The C931 has the password reg at F8D */ + outb((0xE4), 0xF8D); + outb((0x80), 0xF8D); + DDB(printk("Detect using password = 0xE4 for C931\n")); + + if (detect_mad16()) { + return 1; + } + + board_type = C924; + c924pnp++; + DDB(printk("Detect using password = 0xE5 (again), port offset -0x80\n")); + if (detect_mad16()) { + DDB(printk("mad16.c: 82C924 PnP detected\n")); + return 1; + } + + c924pnp=0; + + return 0; +} + +static int __init probe_mad16(struct address_info *hw_config) +{ + int i; + unsigned char tmp; + unsigned char cs4231_mode = 0; + + int ad_flags = 0; + + signed char bits; + + static char dma_bits[4] = { + 1, 2, 0, 3 + }; + + int config_port = hw_config->io_base + 0, version_port = hw_config->io_base + 3; + int dma = hw_config->dma, dma2 = hw_config->dma2; + unsigned char dma2_bit = 0; + int base; + struct resource *ports; + + mad16_osp = hw_config->osp; + + switch (hw_config->io_base) { + case 0x530: + base = 0; + break; + case 0xe80: + base = 1; + break; + case 0xf40: + base = 2; + break; + case 0x604: + base = 3; + break; + default: + printk(KERN_ERR "MAD16/Mozart: Bad WSS base address 0x%x\n", hw_config->io_base); + return 0; + } + + if (dma != 0 && dma != 1 && dma != 3) { + printk(KERN_ERR "MSS: Bad DMA %d\n", dma); + return 0; + } + + /* + * Check that all ports return 0xff (bus float) when no password + * is written to the password register. + */ + + DDB(printk("--- Detecting MAD16 / Mozart ---\n")); + if (!chip_detect()) + return 0; + + switch (hw_config->irq) { + case 7: + bits = 8; + break; + case 9: + bits = 0x10; + break; + case 10: + bits = 0x18; + break; + case 12: + bits = 0x20; + break; + case 5: /* Also IRQ5 is possible on C930 */ + if (board_type == C930 || c924pnp) { + bits = 0x28; + break; + } + default: + printk(KERN_ERR "MAD16/Mozart: Bad IRQ %d\n", hw_config->irq); + return 0; + } + + ports = request_region(hw_config->io_base + 4, 4, "ad1848"); + if (!ports) { + printk(KERN_ERR "MSS: I/O port conflict\n"); + return 0; + } + if (!request_region(hw_config->io_base, 4, "mad16 WSS config")) { + release_region(hw_config->io_base + 4, 4); + printk(KERN_ERR "MSS: I/O port conflict\n"); + return 0; + } + + if (board_type == C930) { + init_c930(hw_config, base); + goto got_it; + } + + for (i = 0xf8d; i <= 0xf93; i++) { + if (!c924pnp) + DDB(printk("port %03x = %02x\n", i, mad_read(i))); + else + DDB(printk("port %03x = %02x\n", i-0x80, mad_read(i))); + } + +/* + * Set the WSS address + */ + + tmp = (mad_read(MC1_PORT) & 0x0f) | 0x80; /* Enable WSS, Disable SB */ + tmp |= base << 4; /* WSS port select bits */ + + /* + * Set optional CD-ROM and joystick settings. + */ + + tmp &= ~0x0f; + tmp |= (mad16_conf & 0x0f); /* CD-ROM and joystick bits */ + mad_write(MC1_PORT, tmp); + + tmp = mad16_cdsel; + mad_write(MC2_PORT, tmp); + mad_write(MC3_PORT, 0xf0); /* Disable SB */ + + if (board_type == C924) /* Specific C924 init values */ + { + mad_write(MC4_PORT, 0xA0); + mad_write(MC5_PORT, 0x05); + mad_write(MC6_PORT, 0x03); + } + if (!ad1848_detect(ports, &ad_flags, mad16_osp)) + goto fail; + + if (ad_flags & (AD_F_CS4231 | AD_F_CS4248)) + cs4231_mode = 0x02; /* CS4248/CS4231 sync delay switch */ + + if (board_type == C929) + { + mad_write(MC4_PORT, 0xa2); + mad_write(MC5_PORT, 0xA5 | cs4231_mode); + mad_write(MC6_PORT, 0x03); /* Disable MPU401 */ + } + else + { + mad_write(MC4_PORT, 0x02); + mad_write(MC5_PORT, 0x30 | cs4231_mode); + } + + for (i = 0xf8d; i <= 0xf93; i++) { + if (!c924pnp) + DDB(printk("port %03x after init = %02x\n", i, mad_read(i))); + else + DDB(printk("port %03x after init = %02x\n", i-0x80, mad_read(i))); + } + +got_it: + ad_flags = 0; + if (!ad1848_detect(ports, &ad_flags, mad16_osp)) + goto fail; + + if (!wss_init(hw_config)) + goto fail; + + /* + * Set the IRQ and DMA addresses. + */ + + outb((bits | 0x40), config_port); + if ((inb(version_port) & 0x40) == 0) + printk(KERN_ERR "[IRQ Conflict?]\n"); + + /* + * Handle the capture DMA channel + */ + + if (ad_flags & AD_F_CS4231 && dma2 != -1 && dma2 != dma) + { + if (!((dma == 0 && dma2 == 1) || + (dma == 1 && dma2 == 0) || + (dma == 3 && dma2 == 0))) + { /* Unsupported combination. Try to swap channels */ + int tmp = dma; + + dma = dma2; + dma2 = tmp; + } + if ((dma == 0 && dma2 == 1) || (dma == 1 && dma2 == 0) || + (dma == 3 && dma2 == 0)) + { + dma2_bit = 0x04; /* Enable capture DMA */ + } + else + { + printk("MAD16: Invalid capture DMA\n"); + dma2 = dma; + } + } + else dma2 = dma; + + outb((bits | dma_bits[dma] | dma2_bit), config_port); /* Write IRQ+DMA setup */ + + hw_config->slots[0] = ad1848_init("mad16 WSS", ports, + hw_config->irq, + dma, + dma2, 0, + hw_config->osp, + THIS_MODULE); + return 1; + +fail: + release_region(hw_config->io_base + 4, 4); + release_region(hw_config->io_base, 4); + return 0; +} + +static int __init probe_mad16_mpu(struct address_info *hw_config) +{ + unsigned char tmp; + + if (board_type < C929) /* Early chip. No MPU support. Just SB MIDI */ + { + +#ifdef CONFIG_MAD16_OLDCARD + + tmp = mad_read(MC3_PORT); + + /* + * MAD16 SB base is defined by the WSS base. It cannot be changed + * alone. + * Ignore configured I/O base. Use the active setting. + */ + + if (mad_read(MC1_PORT) & 0x20) + hw_config->io_base = 0x240; + else + hw_config->io_base = 0x220; + + switch (hw_config->irq) + { + case 5: + tmp = (tmp & 0x3f) | 0x80; + break; + case 7: + tmp = (tmp & 0x3f); + break; + case 11: + tmp = (tmp & 0x3f) | 0x40; + break; + default: + printk(KERN_ERR "mad16/Mozart: Invalid MIDI IRQ\n"); + return 0; + } + + mad_write(MC3_PORT, tmp | 0x04); + hw_config->driver_use_1 = SB_MIDI_ONLY; + if (!request_region(hw_config->io_base, 16, "soundblaster")) + return 0; + if (!sb_dsp_detect(hw_config, 0, 0, NULL)) { + release_region(hw_config->io_base, 16); + return 0; + } + + if (mad_read(MC1_PORT) & 0x20) + hw_config->io_base = 0x240; + else + hw_config->io_base = 0x220; + + hw_config->name = "Mad16/Mozart"; + sb_dsp_init(hw_config, THIS_MODULE); + return 1; +#else + /* assuming all later Mozart cards are identified as + * either 82C928 or Mozart. If so, following code attempts + * to set MPU register. TODO - add probing + */ + + tmp = mad_read(MC8_PORT); + + switch (hw_config->irq) + { + case 5: + tmp |= 0x08; + break; + case 7: + tmp |= 0x10; + break; + case 9: + tmp |= 0x18; + break; + case 10: + tmp |= 0x20; + break; + case 11: + tmp |= 0x28; + break; + default: + printk(KERN_ERR "mad16/MOZART: invalid mpu_irq\n"); + return 0; + } + + switch (hw_config->io_base) + { + case 0x300: + tmp |= 0x01; + break; + case 0x310: + tmp |= 0x03; + break; + case 0x320: + tmp |= 0x05; + break; + case 0x330: + tmp |= 0x07; + break; + default: + printk(KERN_ERR "mad16/MOZART: invalid mpu_io\n"); + return 0; + } + + mad_write(MC8_PORT, tmp); /* write MPU port parameters */ + goto probe_401; +#endif + } + tmp = mad_read(MC6_PORT) & 0x83; + tmp |= 0x80; /* MPU-401 enable */ + + /* Set the MPU base bits */ + + switch (hw_config->io_base) + { + case 0x300: + tmp |= 0x60; + break; + case 0x310: + tmp |= 0x40; + break; + case 0x320: + tmp |= 0x20; + break; + case 0x330: + tmp |= 0x00; + break; + default: + printk(KERN_ERR "MAD16: Invalid MIDI port 0x%x\n", hw_config->io_base); + return 0; + } + + /* Set the MPU IRQ bits */ + + switch (hw_config->irq) + { + case 5: + tmp |= 0x10; + break; + case 7: + tmp |= 0x18; + break; + case 9: + tmp |= 0x00; + break; + case 10: + tmp |= 0x08; + break; + default: + printk(KERN_ERR "MAD16: Invalid MIDI IRQ %d\n", hw_config->irq); + break; + } + + mad_write(MC6_PORT, tmp); /* Write MPU401 config */ + +#ifndef CONFIG_MAD16_OLDCARD +probe_401: +#endif + hw_config->driver_use_1 = SB_MIDI_ONLY; + hw_config->name = "Mad16/Mozart"; + return probe_uart401(hw_config, THIS_MODULE); +} + +static void __exit unload_mad16(struct address_info *hw_config) +{ + ad1848_unload(hw_config->io_base + 4, + hw_config->irq, + hw_config->dma, + hw_config->dma2, 0); + release_region(hw_config->io_base, 4); + sound_unload_audiodev(hw_config->slots[0]); +} + +static void __exit unload_mad16_mpu(struct address_info *hw_config) +{ +#ifdef CONFIG_MAD16_OLDCARD + if (board_type < C929) /* Early chip. No MPU support. Just SB MIDI */ + { + sb_dsp_unload(hw_config, 0); + return; + } +#endif + + unload_uart401(hw_config); +} + +static struct address_info cfg; +static struct address_info cfg_mpu; + +static int found_mpu; + +static int __initdata mpu_io = 0; +static int __initdata mpu_irq = 0; +static int __initdata io = -1; +static int __initdata dma = -1; +static int __initdata dma16 = -1; /* Set this for modules that need it */ +static int __initdata irq = -1; +static int __initdata cdtype = 0; +static int __initdata cdirq = 0; +static int __initdata cdport = 0x340; +static int __initdata cddma = -1; +static int __initdata opl4 = 0; +static int __initdata joystick = 0; + +module_param(mpu_io, int, 0); +module_param(mpu_irq, int, 0); +module_param(io, int, 0); +module_param(dma, int, 0); +module_param(dma16, int, 0); +module_param(irq, int, 0); +module_param(cdtype, int, 0); +module_param(cdirq, int, 0); +module_param(cdport, int, 0); +module_param(cddma, int, 0); +module_param(opl4, int, 0); +module_param(joystick, bool, 0); +module_param(debug, bool, 0644); + +static int __initdata dma_map[2][8] = +{ + {0x03, -1, -1, -1, -1, 0x00, 0x01, 0x02}, + {0x03, -1, 0x01, 0x00, -1, -1, -1, -1} +}; + +static int __initdata irq_map[16] = +{ + 0x00, -1, -1, 0x0A, + -1, 0x04, -1, 0x08, + -1, 0x10, 0x14, 0x18, + -1, -1, -1, -1 +}; + +static int __devinit mad16_register_gameport(int io_port) +{ + if (!request_region(io_port, 1, "mad16 gameport")) { + printk(KERN_ERR "mad16: gameport address 0x%#x already in use\n", io_port); + return -EBUSY; + } + + gameport = gameport_allocate_port(); + if (!gameport) { + printk(KERN_ERR "mad16: can not allocate memory for gameport\n"); + release_region(io_port, 1); + return -ENOMEM; + } + + gameport_set_name(gameport, "MAD16 Gameport"); + gameport_set_phys(gameport, "isa%04x/gameport0", io_port); + gameport->io = io_port; + + gameport_register_port(gameport); + + return 0; +} + +static int __devinit init_mad16(void) +{ + int dmatype = 0; + + printk(KERN_INFO "MAD16 audio driver Copyright (C) by Hannu Savolainen 1993-1996\n"); + + printk(KERN_INFO "CDROM "); + switch (cdtype) + { + case 0x00: + printk("Disabled"); + cdirq = 0; + break; + case 0x02: + printk("Sony CDU31A"); + dmatype = 1; + if(cddma == -1) cddma = 3; + break; + case 0x04: + printk("Mitsumi"); + dmatype = 0; + if(cddma == -1) cddma = 5; + break; + case 0x06: + printk("Panasonic Lasermate"); + dmatype = 1; + if(cddma == -1) cddma = 3; + break; + case 0x08: + printk("Secondary IDE"); + dmatype = 0; + if(cddma == -1) cddma = 5; + break; + case 0x0A: + printk("Primary IDE"); + dmatype = 0; + if(cddma == -1) cddma = 5; + break; + default: + printk("\n"); + printk(KERN_ERR "Invalid CDROM type\n"); + return -EINVAL; + } + + /* + * Build the config words + */ + + mad16_conf = (joystick ^ 1) | cdtype; + mad16_cdsel = 0; + if (opl4) + mad16_cdsel |= 0x20; + + if(cdtype){ + if (cddma > 7 || cddma < 0 || dma_map[dmatype][cddma] == -1) + { + printk("\n"); + printk(KERN_ERR "Invalid CDROM DMA\n"); + return -EINVAL; + } + if (cddma) + printk(", DMA %d", cddma); + else + printk(", no DMA"); + + if (!cdirq) + printk(", no IRQ"); + else if (cdirq < 0 || cdirq > 15 || irq_map[cdirq] == -1) + { + printk(", invalid IRQ (disabling)"); + cdirq = 0; + } + else printk(", IRQ %d", cdirq); + + mad16_cdsel |= dma_map[dmatype][cddma]; + + if (cdtype < 0x08) + { + switch (cdport) + { + case 0x340: + mad16_cdsel |= 0x00; + break; + case 0x330: + mad16_cdsel |= 0x40; + break; + case 0x360: + mad16_cdsel |= 0x80; + break; + case 0x320: + mad16_cdsel |= 0xC0; + break; + default: + printk(KERN_ERR "Unknown CDROM I/O base %d\n", cdport); + return -EINVAL; + } + } + mad16_cdsel |= irq_map[cdirq]; + } + + printk(".\n"); + + cfg.io_base = io; + cfg.irq = irq; + cfg.dma = dma; + cfg.dma2 = dma16; + + if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) { + printk(KERN_ERR "I/O, DMA and irq are mandatory\n"); + return -EINVAL; + } + + if (!request_region(MC0_PORT, 12, "mad16")) + return -EBUSY; + + if (!probe_mad16(&cfg)) { + release_region(MC0_PORT, 12); + return -ENODEV; + } + + cfg_mpu.io_base = mpu_io; + cfg_mpu.irq = mpu_irq; + + found_mpu = probe_mad16_mpu(&cfg_mpu); + + if (joystick) + mad16_register_gameport(0x201); + + return 0; +} + +static void __exit cleanup_mad16(void) +{ + if (found_mpu) + unload_mad16_mpu(&cfg_mpu); + if (gameport) { + /* the gameport was initialized so we must free it up */ + gameport_unregister_port(gameport); + gameport = NULL; + release_region(0x201, 1); + } + unload_mad16(&cfg); + release_region(MC0_PORT, 12); +} + +module_init(init_mad16); +module_exit(cleanup_mad16); + +#ifndef MODULE +static int __init setup_mad16(char *str) +{ + /* io, irq */ + int ints[8]; + + str = get_options(str, ARRAY_SIZE(ints), ints); + + io = ints[1]; + irq = ints[2]; + dma = ints[3]; + dma16 = ints[4]; + mpu_io = ints[5]; + mpu_irq = ints[6]; + joystick = ints[7]; + + return 1; +} + +__setup("mad16=", setup_mad16); +#endif +MODULE_LICENSE("GPL"); -- cgit v1.2.3