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-rw-r--r--sound/oss/mad16.c1097
1 files changed, 1097 insertions, 0 deletions
diff --git a/sound/oss/mad16.c b/sound/oss/mad16.c
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+++ b/sound/oss/mad16.c
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+/*
+ * 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 <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 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");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 21:35:07 +0100