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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 compatable 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 <linux/config.h> #include <linux/init.h> #include <linux/module.h> #include <linux/gameport.h> #include <linux/spinlock.h> #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 spinlock_t lock=SPIN_LOCK_UNLOCKED; static int already_initialized = 0; #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 = 0; /* " " " C924 */ static int debug = 0; /* debugging output */ #ifdef DDB #undef DDB #endif #define DDB(x) {if (debug) x;} 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) { int ad_flags = 0; /* * Verify the WSS parameters */ if (check_region(hw_config->io_base, 8)) { printk(KERN_ERR "MSS: I/O port conflict\n"); return 0; } if (!ad1848_detect(hw_config->io_base + 4, &ad_flags, mad16_osp)) return 0; /* * 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; } if (hw_config->irq > 11) { printk(KERN_ERR "MSS: Bad IRQ %d\n", hw_config->irq); return 0; } if (hw_config->dma != 0 && hw_config->dma != 1 && hw_config->dma != 3) { printk(KERN_ERR "MSS: Bad DMA %d\n", hw_config->dma); 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 > 7 && 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 int __init init_c930(struct address_info *hw_config) { unsigned char cfg = 0; 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; } switch (hw_config->io_base) { case 0x530: cfg |= 0x00; break; case 0xe80: cfg |= 0x10; break; case 0xf40: cfg |= 0x20; break; case 0x604: cfg |= 0x30; break; default: printk(KERN_ERR "MAD16: Invalid codec port %x\n", hw_config->io_base); return 0; } 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; mad_write(MC4_PORT, 0x52|cfg); 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); return wss_init(hw_config); } 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; static int valid_ports[] = { 0x530, 0xe80, 0xf40, 0x604 }; unsigned char tmp; unsigned char cs4231_mode = 0; int ad_flags = 0; if (already_initialized) return 0; mad16_osp = hw_config->osp; /* * 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; if (board_type == C930) return init_c930(hw_config); 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 */ for (i = 0; i < 5; i++) { if (i > 3) /* Not a valid port */ { printk(KERN_ERR "MAD16/Mozart: Bad WSS base address 0x%x\n", hw_config->io_base); return 0; } if (valid_ports[i] == hw_config->io_base) { tmp |= i << 4; /* WSS port select bits */ break; } } /* * Set optional CD-ROM and joystick settings. */ tmp &= ~0x0f; mad_write(MC1_PORT, tmp); tmp = mad_read(MC2_PORT); 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(hw_config->io_base + 4, &ad_flags, mad16_osp)) return 0; 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))); wss_init(hw_config); return 1; } static void __init attach_mad16(struct address_info *hw_config) { static signed char interrupt_bits[12] = { -1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20 }; 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 ad_flags = 0, dma = hw_config->dma, dma2 = hw_config->dma2; unsigned char dma2_bit = 0; already_initialized = 1; if (!ad1848_detect(hw_config->io_base + 4, &ad_flags, mad16_osp)) return; /* * Set the IRQ and DMA addresses. */ if (board_type == C930 || c924pnp) interrupt_bits[5] = 0x28; /* Also IRQ5 is possible on C930 */ bits = interrupt_bits[hw_config->irq]; if (bits == -1) return; 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", hw_config->io_base + 4, hw_config->irq, dma, dma2, 0, hw_config->osp, THIS_MODULE); request_region(hw_config->io_base, 4, "mad16 WSS config"); } static int __init probe_mad16_mpu(struct address_info *hw_config) { static int mpu_attached = 0; unsigned char tmp; if (!already_initialized) /* The MSS port must be initialized first */ return 0; if (mpu_attached) /* Don't let them call this twice */ return 0; mpu_attached = 1; 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 (!sb_dsp_detect(hw_config, 0, 0, NULL)) 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 = 1; MODULE_PARM(mpu_io, "i"); MODULE_PARM(mpu_irq, "i"); MODULE_PARM(io,"i"); MODULE_PARM(dma,"i"); MODULE_PARM(dma16,"i"); MODULE_PARM(irq,"i"); MODULE_PARM(cdtype,"i"); MODULE_PARM(cdirq,"i"); MODULE_PARM(cdport,"i"); MODULE_PARM(cddma,"i"); MODULE_PARM(opl4,"i"); MODULE_PARM(joystick,"i"); MODULE_PARM(debug,"i"); 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 __init 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 (!probe_mad16(&cfg)) return -ENODEV; cfg_mpu.io_base = mpu_io; cfg_mpu.irq = mpu_irq; attach_mad16(&cfg); found_mpu = probe_mad16_mpu(&cfg_mpu); if (joystick == 1) { /* register gameport */ if (!request_region(0x201, 1, "mad16 gameport")) printk(KERN_ERR "mad16: gameport address 0x201 already in use\n"); else { printk(KERN_ERR "mad16: gameport enabled at 0x201\n"); gameport.io = 0x201; gameport_register_port(&gameport); } } else printk(KERN_ERR "mad16: gameport disabled.\n"); return 0; } static void __exit cleanup_mad16(void) { if (found_mpu) unload_mad16_mpu(&cfg_mpu); unload_mad16(&cfg); } 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"); |