523 строки
13 KiB
C
523 строки
13 KiB
C
/*
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* Copyright (C) by Hannu Savolainen 1993-1997
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*
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* cs4232.c
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*
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* The low level driver for Crystal CS4232 based cards. The CS4232 is
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* a PnP compatible chip which contains a CS4231A codec, SB emulation,
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* a MPU401 compatible MIDI port, joystick and synthesizer and IDE CD-ROM
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* interfaces. This is just a temporary driver until full PnP support
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* gets implemented. Just the WSS codec, FM synth and the MIDI ports are
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* supported. Other interfaces are left uninitialized.
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*
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* ifdef ...WAVEFRONT...
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*
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* Support is provided for initializing the WaveFront synth
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* interface as well, which is logical device #4. Note that if
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* you have a Tropez+ card, you probably don't need to setup
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* the CS4232-supported MIDI interface, since it corresponds to
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* the internal 26-pin header that's hard to access. Using this
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* requires an additional IRQ, a resource none too plentiful in
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* this environment. Just don't set module parameters mpuio and
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* mpuirq, and the MIDI port will be left uninitialized. You can
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* still use the ICS2115 hosted MIDI interface which corresponds
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* to the 9-pin D connector on the back of the card.
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*
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* endif ...WAVEFRONT...
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*
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* Supported chips are:
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* CS4232
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* CS4236
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* CS4236B
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*
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* Note: You will need a PnP config setup to initialise some CS4232 boards
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* anyway.
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*
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* Changes
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* John Rood Added Bose Sound System Support.
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* Toshio Spoor
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* Alan Cox Modularisation, Basic cleanups.
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* Paul Barton-Davis Separated MPU configuration, added
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* Tropez+ (WaveFront) support
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* Christoph Hellwig Adapted to module_init/module_exit,
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* simple cleanups
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* Arnaldo C. de Melo got rid of attach_uart401
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* Bartlomiej Zolnierkiewicz
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* Added some __init/__initdata/__exit
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* Marcus Meissner Added ISA PnP support.
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*/
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#include <linux/config.h>
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#include <linux/pnp.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include "sound_config.h"
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#include "ad1848.h"
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#include "mpu401.h"
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#define KEY_PORT 0x279 /* Same as LPT1 status port */
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#define CSN_NUM 0x99 /* Just a random number */
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#define INDEX_ADDRESS 0x00 /* (R0) Index Address Register */
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#define INDEX_DATA 0x01 /* (R1) Indexed Data Register */
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#define PIN_CONTROL 0x0a /* (I10) Pin Control */
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#define ENABLE_PINS 0xc0 /* XCTRL0/XCTRL1 enable */
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static void CS_OUT(unsigned char a)
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{
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outb(a, KEY_PORT);
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}
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#define CS_OUT2(a, b) {CS_OUT(a);CS_OUT(b);}
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#define CS_OUT3(a, b, c) {CS_OUT(a);CS_OUT(b);CS_OUT(c);}
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static int __initdata bss = 0;
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static int mpu_base, mpu_irq;
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static int synth_base, synth_irq;
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static int mpu_detected;
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static int probe_cs4232_mpu(struct address_info *hw_config)
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{
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/*
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* Just write down the config values.
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*/
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mpu_base = hw_config->io_base;
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mpu_irq = hw_config->irq;
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return 1;
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}
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static unsigned char crystal_key[] = /* A 32 byte magic key sequence */
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{
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0x96, 0x35, 0x9a, 0xcd, 0xe6, 0xf3, 0x79, 0xbc,
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0x5e, 0xaf, 0x57, 0x2b, 0x15, 0x8a, 0xc5, 0xe2,
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0xf1, 0xf8, 0x7c, 0x3e, 0x9f, 0x4f, 0x27, 0x13,
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0x09, 0x84, 0x42, 0xa1, 0xd0, 0x68, 0x34, 0x1a
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};
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static void sleep(unsigned howlong)
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{
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current->state = TASK_INTERRUPTIBLE;
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schedule_timeout(howlong);
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}
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static void enable_xctrl(int baseio)
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{
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unsigned char regd;
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/*
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* Some IBM Aptiva's have the Bose Sound System. By default
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* the Bose Amplifier is disabled. The amplifier will be
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* activated, by setting the XCTRL0 and XCTRL1 bits.
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* Volume of the monitor bose speakers/woofer, can then
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* be set by changing the PCM volume.
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*
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*/
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printk("cs4232: enabling Bose Sound System Amplifier.\n");
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/* Switch to Pin Control Address */
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regd = inb(baseio + INDEX_ADDRESS) & 0xe0;
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outb(((unsigned char) (PIN_CONTROL | regd)), baseio + INDEX_ADDRESS );
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/* Activate the XCTRL0 and XCTRL1 Pins */
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regd = inb(baseio + INDEX_DATA);
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outb(((unsigned char) (ENABLE_PINS | regd)), baseio + INDEX_DATA );
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}
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static int __init probe_cs4232(struct address_info *hw_config, int isapnp_configured)
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{
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int i, n;
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int base = hw_config->io_base, irq = hw_config->irq;
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int dma1 = hw_config->dma, dma2 = hw_config->dma2;
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struct resource *ports;
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if (base == -1 || irq == -1 || dma1 == -1) {
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printk(KERN_ERR "cs4232: dma, irq and io must be set.\n");
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return 0;
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}
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/*
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* Verify that the I/O port range is free.
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*/
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ports = request_region(base, 4, "ad1848");
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if (!ports) {
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printk(KERN_ERR "cs4232.c: I/O port 0x%03x not free\n", base);
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return 0;
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}
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if (ad1848_detect(ports, NULL, hw_config->osp)) {
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goto got_it; /* The card is already active */
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}
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if (isapnp_configured) {
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printk(KERN_ERR "cs4232.c: ISA PnP configured, but not detected?\n");
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goto fail;
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}
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/*
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* This version of the driver doesn't use the PnP method when configuring
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* the card but a simplified method defined by Crystal. This means that
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* just one CS4232 compatible device can exist on the system. Also this
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* method conflicts with possible PnP support in the OS. For this reason
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* driver is just a temporary kludge.
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*
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* Also the Cirrus/Crystal method doesn't always work. Try ISA PnP first ;)
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*/
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/*
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* Repeat initialization few times since it doesn't always succeed in
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* first time.
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*/
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for (n = 0; n < 4; n++)
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{
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/*
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* Wake up the card by sending a 32 byte Crystal key to the key port.
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*/
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for (i = 0; i < 32; i++)
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CS_OUT(crystal_key[i]);
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sleep(HZ / 10);
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/*
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* Now set the CSN (Card Select Number).
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*/
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CS_OUT2(0x06, CSN_NUM);
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/*
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* Then set some config bytes. First logical device 0
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*/
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CS_OUT2(0x15, 0x00); /* Select logical device 0 (WSS/SB/FM) */
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CS_OUT3(0x47, (base >> 8) & 0xff, base & 0xff); /* WSS base */
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if (!request_region(0x388, 4, "FM")) /* Not free */
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CS_OUT3(0x48, 0x00, 0x00) /* FM base off */
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else {
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release_region(0x388, 4);
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CS_OUT3(0x48, 0x03, 0x88); /* FM base 0x388 */
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}
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CS_OUT3(0x42, 0x00, 0x00); /* SB base off */
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CS_OUT2(0x22, irq); /* SB+WSS IRQ */
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CS_OUT2(0x2a, dma1); /* SB+WSS DMA */
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if (dma2 != -1)
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CS_OUT2(0x25, dma2) /* WSS DMA2 */
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else
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CS_OUT2(0x25, 4); /* No WSS DMA2 */
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CS_OUT2(0x33, 0x01); /* Activate logical dev 0 */
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sleep(HZ / 10);
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/*
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* Initialize logical device 3 (MPU)
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*/
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if (mpu_base != 0 && mpu_irq != 0)
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{
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CS_OUT2(0x15, 0x03); /* Select logical device 3 (MPU) */
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CS_OUT3(0x47, (mpu_base >> 8) & 0xff, mpu_base & 0xff); /* MPU base */
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CS_OUT2(0x22, mpu_irq); /* MPU IRQ */
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CS_OUT2(0x33, 0x01); /* Activate logical dev 3 */
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}
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if(synth_base != 0)
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{
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CS_OUT2 (0x15, 0x04); /* logical device 4 (WaveFront) */
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CS_OUT3 (0x47, (synth_base >> 8) & 0xff,
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synth_base & 0xff); /* base */
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CS_OUT2 (0x22, synth_irq); /* IRQ */
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CS_OUT2 (0x33, 0x01); /* Activate logical dev 4 */
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}
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/*
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* Finally activate the chip
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*/
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CS_OUT(0x79);
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sleep(HZ / 5);
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/*
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* Then try to detect the codec part of the chip
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*/
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if (ad1848_detect(ports, NULL, hw_config->osp))
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goto got_it;
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sleep(HZ);
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}
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fail:
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release_region(base, 4);
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return 0;
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got_it:
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if (dma2 == -1)
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dma2 = dma1;
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hw_config->slots[0] = ad1848_init("Crystal audio controller", ports,
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irq,
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dma1, /* Playback DMA */
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dma2, /* Capture DMA */
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0,
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hw_config->osp,
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THIS_MODULE);
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if (hw_config->slots[0] != -1 &&
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audio_devs[hw_config->slots[0]]->mixer_dev!=-1)
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{
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/* Assume the mixer map is as suggested in the CS4232 databook */
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AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE);
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AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD);
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AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH); /* FM synth */
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}
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if (mpu_base != 0 && mpu_irq != 0)
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{
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static struct address_info hw_config2 = {
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0
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}; /* Ensure it's initialized */
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hw_config2.io_base = mpu_base;
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hw_config2.irq = mpu_irq;
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hw_config2.dma = -1;
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hw_config2.dma2 = -1;
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hw_config2.always_detect = 0;
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hw_config2.name = NULL;
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hw_config2.driver_use_1 = 0;
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hw_config2.driver_use_2 = 0;
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hw_config2.card_subtype = 0;
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if (probe_uart401(&hw_config2, THIS_MODULE))
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{
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mpu_detected = 1;
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}
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else
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{
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mpu_base = mpu_irq = 0;
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}
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hw_config->slots[1] = hw_config2.slots[1];
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}
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if (bss)
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enable_xctrl(base);
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return 1;
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}
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static void __devexit unload_cs4232(struct address_info *hw_config)
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{
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int base = hw_config->io_base, irq = hw_config->irq;
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int dma1 = hw_config->dma, dma2 = hw_config->dma2;
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if (dma2 == -1)
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dma2 = dma1;
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ad1848_unload(base,
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irq,
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dma1, /* Playback DMA */
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dma2, /* Capture DMA */
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0);
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sound_unload_audiodev(hw_config->slots[0]);
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if (mpu_base != 0 && mpu_irq != 0 && mpu_detected)
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{
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static struct address_info hw_config2 =
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{
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0
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}; /* Ensure it's initialized */
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hw_config2.io_base = mpu_base;
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hw_config2.irq = mpu_irq;
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hw_config2.dma = -1;
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hw_config2.dma2 = -1;
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hw_config2.always_detect = 0;
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hw_config2.name = NULL;
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hw_config2.driver_use_1 = 0;
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hw_config2.driver_use_2 = 0;
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hw_config2.card_subtype = 0;
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hw_config2.slots[1] = hw_config->slots[1];
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unload_uart401(&hw_config2);
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}
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}
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static struct address_info cfg;
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static struct address_info cfg_mpu;
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static int __initdata io = -1;
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static int __initdata irq = -1;
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static int __initdata dma = -1;
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static int __initdata dma2 = -1;
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static int __initdata mpuio = -1;
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static int __initdata mpuirq = -1;
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static int __initdata synthio = -1;
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static int __initdata synthirq = -1;
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static int __initdata isapnp = 1;
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MODULE_DESCRIPTION("CS4232 based soundcard driver");
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MODULE_AUTHOR("Hannu Savolainen, Paul Barton-Davis");
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MODULE_LICENSE("GPL");
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module_param(io, int, 0);
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MODULE_PARM_DESC(io,"base I/O port for AD1848");
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module_param(irq, int, 0);
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MODULE_PARM_DESC(irq,"IRQ for AD1848 chip");
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module_param(dma, int, 0);
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MODULE_PARM_DESC(dma,"8 bit DMA for AD1848 chip");
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module_param(dma2, int, 0);
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MODULE_PARM_DESC(dma2,"16 bit DMA for AD1848 chip");
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module_param(mpuio, int, 0);
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MODULE_PARM_DESC(mpuio,"MPU 401 base address");
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module_param(mpuirq, int, 0);
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MODULE_PARM_DESC(mpuirq,"MPU 401 IRQ");
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module_param(synthio, int, 0);
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MODULE_PARM_DESC(synthio,"Maui WaveTable base I/O port");
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module_param(synthirq, int, 0);
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MODULE_PARM_DESC(synthirq,"Maui WaveTable IRQ");
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module_param(isapnp, bool, 0);
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MODULE_PARM_DESC(isapnp,"Enable ISAPnP probing (default 1)");
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module_param(bss, bool, 0);
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MODULE_PARM_DESC(bss,"Enable Bose Sound System Support (default 0)");
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/*
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* Install a CS4232 based card. Need to have ad1848 and mpu401
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* loaded ready.
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*/
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/* All cs4232 based cards have the main ad1848 card either as CSC0000 or
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* CSC0100. */
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static const struct pnp_device_id cs4232_pnp_table[] = {
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{ .id = "CSC0100", .driver_data = 0 },
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{ .id = "CSC0000", .driver_data = 0 },
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/* Guillemot Turtlebeach something appears to be cs4232 compatible
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* (untested) */
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{ .id = "GIM0100", .driver_data = 0 },
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{ .id = ""}
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};
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MODULE_DEVICE_TABLE(pnp, cs4232_pnp_table);
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static int cs4232_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
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{
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struct address_info *isapnpcfg;
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isapnpcfg=(struct address_info*)kmalloc(sizeof(*isapnpcfg),GFP_KERNEL);
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if (!isapnpcfg)
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return -ENOMEM;
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isapnpcfg->irq = pnp_irq(dev, 0);
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isapnpcfg->dma = pnp_dma(dev, 0);
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isapnpcfg->dma2 = pnp_dma(dev, 1);
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isapnpcfg->io_base = pnp_port_start(dev, 0);
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if (probe_cs4232(isapnpcfg,TRUE) == 0) {
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printk(KERN_ERR "cs4232: ISA PnP card found, but not detected?\n");
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kfree(isapnpcfg);
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return -ENODEV;
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}
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pnp_set_drvdata(dev,isapnpcfg);
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return 0;
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}
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static void __devexit cs4232_pnp_remove(struct pnp_dev *dev)
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{
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struct address_info *cfg = pnp_get_drvdata(dev);
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if (cfg) {
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unload_cs4232(cfg);
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kfree(cfg);
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}
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}
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static struct pnp_driver cs4232_driver = {
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.name = "cs4232",
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.id_table = cs4232_pnp_table,
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.probe = cs4232_pnp_probe,
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.remove = __devexit_p(cs4232_pnp_remove),
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};
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static int __init init_cs4232(void)
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{
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#ifdef CONFIG_SOUND_WAVEFRONT_MODULE
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if(synthio == -1)
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printk(KERN_INFO "cs4232: set synthio and synthirq to use the wavefront facilities.\n");
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else {
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synth_base = synthio;
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synth_irq = synthirq;
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}
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#else
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if(synthio != -1)
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printk(KERN_WARNING "cs4232: wavefront support not enabled in this driver.\n");
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#endif
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cfg.irq = -1;
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if (isapnp &&
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(pnp_register_driver(&cs4232_driver) > 0)
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)
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return 0;
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if(io==-1||irq==-1||dma==-1)
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{
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printk(KERN_ERR "cs4232: Must set io, irq and dma.\n");
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return -ENODEV;
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}
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cfg.io_base = io;
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cfg.irq = irq;
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cfg.dma = dma;
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cfg.dma2 = dma2;
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cfg_mpu.io_base = -1;
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cfg_mpu.irq = -1;
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if (mpuio != -1 && mpuirq != -1) {
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cfg_mpu.io_base = mpuio;
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cfg_mpu.irq = mpuirq;
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probe_cs4232_mpu(&cfg_mpu); /* Bug always returns 0 not OK -- AC */
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}
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if (probe_cs4232(&cfg,FALSE) == 0)
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return -ENODEV;
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return 0;
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}
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static void __exit cleanup_cs4232(void)
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{
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pnp_unregister_driver(&cs4232_driver);
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if (cfg.irq != -1)
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unload_cs4232(&cfg); /* Unloads global MPU as well, if needed */
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|
}
|
|
|
|
module_init(init_cs4232);
|
|
module_exit(cleanup_cs4232);
|
|
|
|
#ifndef MODULE
|
|
static int __init setup_cs4232(char *str)
|
|
{
|
|
/* io, irq, dma, dma2 mpuio, mpuirq*/
|
|
int ints[7];
|
|
|
|
/* If we have isapnp cards, no need for options */
|
|
if (pnp_register_driver(&cs4232_driver) > 0)
|
|
return 1;
|
|
|
|
str = get_options(str, ARRAY_SIZE(ints), ints);
|
|
|
|
io = ints[1];
|
|
irq = ints[2];
|
|
dma = ints[3];
|
|
dma2 = ints[4];
|
|
mpuio = ints[5];
|
|
mpuirq = ints[6];
|
|
|
|
return 1;
|
|
}
|
|
|
|
__setup("cs4232=", setup_cs4232);
|
|
#endif
|