diff options
author | sos <sos@FreeBSD.org> | 1998-12-27 14:21:37 +0000 |
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committer | sos <sos@FreeBSD.org> | 1998-12-27 14:21:37 +0000 |
commit | 3ea5a3c11d9de75d335ebfbfd17a2eedaa15a8d8 (patch) | |
tree | 05ebe7b416c792cb29dd64c665bfc9e8d1743080 /sys/i386/isa/sound/sscape.c | |
parent | 6e00996c0599fe131e89c9b8095eef18f39f7560 (diff) | |
download | FreeBSD-src-3ea5a3c11d9de75d335ebfbfd17a2eedaa15a8d8.zip FreeBSD-src-3ea5a3c11d9de75d335ebfbfd17a2eedaa15a8d8.tar.gz |
Pre 3.0 branch cleanup sos#2: sound
Superceded by the snd driver...
Diffstat (limited to 'sys/i386/isa/sound/sscape.c')
-rw-r--r-- | sys/i386/isa/sound/sscape.c | 1061 |
1 files changed, 0 insertions, 1061 deletions
diff --git a/sys/i386/isa/sound/sscape.c b/sys/i386/isa/sound/sscape.c deleted file mode 100644 index 28ef044..0000000 --- a/sys/i386/isa/sound/sscape.c +++ /dev/null @@ -1,1061 +0,0 @@ -/* - * sound/sscape.c - * - * Low level driver for Ensoniq Soundscape - * - * Copyright by Hannu Savolainen 1994 - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. 2. - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - -#include <i386/isa/sound/sound_config.h> - -#if NSSCAPE > 0 - -#include <i386/isa/sound/coproc.h> - -#define EXCLUDE_NATIVE_PCM - -/* - * I/O ports - */ -#define MIDI_DATA 0 -#define MIDI_CTRL 1 -#define HOST_CTRL 2 -#define TX_READY 0x02 -#define RX_READY 0x01 -#define HOST_DATA 3 -#define ODIE_ADDR 4 -#define ODIE_DATA 5 - -/* - * Indirect registers - */ -#define GA_INTSTAT_REG 0 -#define GA_INTENA_REG 1 -#define GA_DMAA_REG 2 -#define GA_DMAB_REG 3 -#define GA_INTCFG_REG 4 -#define GA_DMACFG_REG 5 -#define GA_CDCFG_REG 6 -#define GA_SMCFGA_REG 7 -#define GA_SMCFGB_REG 8 -#define GA_HMCTL_REG 9 - -/* - * DMA channel identifiers (A and B) - */ -#define SSCAPE_DMA_A 0 -#define SSCAPE_DMA_B 1 - -#define PORT(name) (devc->base+name) - -/* - * Host commands recognized by the OBP microcode - */ -#define CMD_GEN_HOST_ACK 0x80 -#define CMD_GEN_MPU_ACK 0x81 -#define CMD_GET_BOARD_TYPE 0x82 -#define CMD_SET_CONTROL 0x88 -#define CMD_GET_CONTROL 0x89 -#define CTL_MASTER_VOL 0 -#define CTL_MIC_MODE 2 -#define CTL_SYNTH_VOL 4 -#define CTL_WAVE_VOL 7 -#define CMD_SET_MT32 0x96 -#define CMD_GET_MT32 0x97 -#define CMD_SET_EXTMIDI 0x9b -#define CMD_GET_EXTMIDI 0x9c - -#define CMD_ACK 0x80 - -typedef struct sscape_info { - int base, irq, dma; - int ok; /* Properly detected */ - int failed; - int dma_allocated; - int my_audiodev; - int opened; - sound_os_info *osp; -} - - sscape_info; -static struct sscape_info dev_info = -{0}; -static struct sscape_info *devc = &dev_info; - -static int *sscape_sleeper = NULL; -static volatile struct snd_wait sscape_sleep_flag = -{0}; - -/* Some older cards have assigned interrupt bits differently than new ones */ -static char valid_interrupts_old[] = -{9, 7, 5, 15}; - -static char valid_interrupts_new[] = -{9, 5, 7, 10}; - -static char *valid_interrupts = valid_interrupts_new; - -#ifdef REVEAL_SPEA -static char old_hardware = 1; - -#else -static char old_hardware = 0; - -#endif - -static u_char -sscape_read(struct sscape_info * devc, int reg) -{ - u_long flags; - u_char val; - - flags = splhigh(); - outb(PORT(ODIE_ADDR), reg); - val = inb(PORT(ODIE_DATA)); - splx(flags); - return val; -} - -static void -sscape_write(struct sscape_info * devc, int reg, int data) -{ - u_long flags; - - flags = splhigh(); - outb(PORT(ODIE_ADDR), reg); - outb(PORT(ODIE_DATA), data); - splx(flags); -} - -static void -host_open(struct sscape_info * devc) -{ - outb(PORT(HOST_CTRL), 0x00); /* Put the board to the host mode */ -} - -static void -host_close(struct sscape_info * devc) -{ - outb(PORT(HOST_CTRL), 0x03); /* Put the board to the MIDI mode */ -} - -static int -host_write(struct sscape_info * devc, u_char *data, int count) -{ - u_long flags; - int i, timeout_val; - - flags = splhigh(); - - /* - * Send the command and data bytes - */ - - for (i = 0; i < count; i++) { - for (timeout_val = 10000; timeout_val > 0; timeout_val--) - if (inb(PORT(HOST_CTRL)) & TX_READY) - break; - - if (timeout_val <= 0) { - splx(flags); - return 0; - } - outb(PORT(HOST_DATA), data[i]); - } - - - splx(flags); - - return 1; -} - -static int -host_read(struct sscape_info * devc) -{ - u_long flags; - int timeout_val; - u_char data; - - flags = splhigh(); - - /* - * Read a byte - */ - - for (timeout_val = 10000; timeout_val > 0; timeout_val--) - if (inb(PORT(HOST_CTRL)) & RX_READY) - break; - - if (timeout_val <= 0) { - splx(flags); - return -1; - } - data = inb(PORT(HOST_DATA)); - - splx(flags); - - return data; -} - -static int -host_command1(struct sscape_info * devc, int cmd) -{ - u_char buf[10]; - - buf[0] = (u_char) (cmd & 0xff); - - return host_write(devc, buf, 1); -} - -static int -host_command2(struct sscape_info * devc, int cmd, int parm1) -{ - u_char buf[10]; - - buf[0] = (u_char) (cmd & 0xff); - buf[1] = (u_char) (parm1 & 0xff); - - return host_write(devc, buf, 2); -} - -static int -host_command3(struct sscape_info * devc, int cmd, int parm1, int parm2) -{ - u_char buf[10]; - - buf[0] = (u_char) (cmd & 0xff); - buf[1] = (u_char) (parm1 & 0xff); - buf[2] = (u_char) (parm2 & 0xff); - - return host_write(devc, buf, 3); -} - -static void -set_mt32(struct sscape_info * devc, int value) -{ - host_open(devc); - host_command2(devc, CMD_SET_MT32, - value ? 1 : 0); - if (host_read(devc) != CMD_ACK) { - printf("SNDSCAPE: Setting MT32 mode failed\n"); - } - host_close(devc); -} - -static void -set_control(struct sscape_info * devc, int ctrl, int value) -{ - host_open(devc); - host_command3(devc, CMD_SET_CONTROL, ctrl, value); - if (host_read(devc) != CMD_ACK) { - printf("SNDSCAPE: Setting control (%d) failed\n", ctrl); - } - host_close(devc); -} - -static int -get_board_type(struct sscape_info * devc) -{ - int tmp; - - host_open(devc); - if (!host_command1(devc, CMD_GET_BOARD_TYPE)) - tmp = -1; - else - tmp = host_read(devc); - host_close(devc); - return tmp; -} - -void -sscapeintr(int irq) -{ - u_char bits, tmp; - - DEB(printf("sscapeintr(0x%02x)\n", (bits = sscape_read(devc, GA_INTSTAT_REG)))); - if ((sscape_sleep_flag.mode & WK_SLEEP)) { - sscape_sleep_flag.mode = WK_WAKEUP; - wakeup(sscape_sleeper); - } - if (bits & 0x02) { /* Host interface interrupt */ - printf("SSCAPE: Host interrupt, data=%02x\n", host_read(devc)); - } -#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI) - if (bits & 0x01) { - static int debug = 0; - - mpuintr(irq); - if (debug++ > 10) { /* Temporary debugging hack */ - sscape_write(devc, GA_INTENA_REG, 0x00); /* Disable all interr. */ - } - } -#endif - - /* - * Acknowledge interrupts (toggle the interrupt bits) - */ - - tmp = sscape_read(devc, GA_INTENA_REG); - sscape_write(devc, GA_INTENA_REG, (~bits & 0x0e) | (tmp & 0xf1)); -} - - -static void -do_dma(struct sscape_info * devc, int dma_chan, u_long buf, int blk_size, int mode) -{ - u_char temp; - - if (dma_chan != SSCAPE_DMA_A) { - printf("SSCAPE: Tried to use DMA channel != A. Why?\n"); - return; - } - DMAbuf_start_dma(devc->my_audiodev, buf, blk_size, mode); - - temp = devc->dma << 4; /* Setup DMA channel select bits */ - if (devc->dma <= 3) - temp |= 0x80; /* 8 bit DMA channel */ - - temp |= 1; /* Trigger DMA */ - sscape_write(devc, GA_DMAA_REG, temp); - temp &= 0xfe; /* Clear DMA trigger */ - sscape_write(devc, GA_DMAA_REG, temp); -} - -static int -verify_mpu(struct sscape_info * devc) -{ - /* - * The SoundScape board could be in three modes (MPU, 8250 and host). - * If the card is not in the MPU mode, enabling the MPU driver will - * cause infinite loop (the driver believes that there is always some - * received data in the buffer. - * - * Detect this by looking if there are more than 10 received MIDI bytes - * (0x00) in the buffer. - */ - - int i; - - for (i = 0; i < 10; i++) { - if (inb(devc->base + HOST_CTRL) & 0x80) - return 1; - - if (inb(devc->base) != 0x00) - return 1; - } - - printf("SoundScape: The device is not in the MPU-401 mode\n"); - return 0; -} - -static int -sscape_coproc_open(void *dev_info, int sub_device) -{ - if (sub_device == COPR_MIDI) { - set_mt32(devc, 0); - if (!verify_mpu(devc)) - return -(EIO); - } - sscape_sleep_flag.aborting = 0; - sscape_sleep_flag.mode = WK_NONE; - return 0; -} - -static void -sscape_coproc_close(void *dev_info, int sub_device) -{ - struct sscape_info *devc = dev_info; - u_long flags; - - flags = splhigh(); - if (devc->dma_allocated) { - sscape_write(devc, GA_DMAA_REG, 0x20); /* DMA channel disabled */ -#ifdef CONFIG_NATIVE_PCM -#endif - devc->dma_allocated = 0; - } - sscape_sleep_flag.aborting = 0; - sscape_sleep_flag.mode = WK_NONE; - splx(flags); - - return; -} - -static void -sscape_coproc_reset(void *dev_info) -{ -} - -static int -sscape_download_boot(struct sscape_info * devc, u_char *block, int size, int flag) -{ - u_long flags; - u_char temp; - int done, timeout_val; - - if (flag & CPF_FIRST) { - /* - * First block. Have to allocate DMA and to reset the board - * before continuing. - */ - - flags = splhigh(); - if (devc->dma_allocated == 0) { - devc->dma_allocated = 1; - } - splx(flags); - - sscape_write(devc, GA_HMCTL_REG, - (temp = sscape_read(devc, GA_HMCTL_REG)) & 0x3f); /* Reset */ - - for (timeout_val = 10000; timeout_val > 0; timeout_val--) - sscape_read(devc, GA_HMCTL_REG); /* Delay */ - - /* Take board out of reset */ - sscape_write(devc, GA_HMCTL_REG, - (temp = sscape_read(devc, GA_HMCTL_REG)) | 0x80); - } - /* - * Transfer one code block using DMA - */ - bcopy(block, audio_devs[devc->my_audiodev]->dmap_out->raw_buf, size); - - flags = splhigh(); - /******** INTERRUPTS DISABLED NOW ********/ - do_dma(devc, SSCAPE_DMA_A, - audio_devs[devc->my_audiodev]->dmap_out->raw_buf_phys, - size, 1); - - /* - * Wait until transfer completes. - */ - sscape_sleep_flag.aborting = 0; - sscape_sleep_flag.mode = WK_NONE; - done = 0; - timeout_val = 100; - while (!done && timeout_val-- > 0) { - int chn; - sscape_sleeper = &chn; - DO_SLEEP(chn, sscape_sleep_flag, 1); - - done = 1; - } - - splx(flags); - if (!done) - return 0; - - if (flag & CPF_LAST) { - /* - * Take the board out of reset - */ - outb(PORT(HOST_CTRL), 0x00); - outb(PORT(MIDI_CTRL), 0x00); - - temp = sscape_read(devc, GA_HMCTL_REG); - temp |= 0x40; - sscape_write(devc, GA_HMCTL_REG, temp); /* Kickstart the board */ - - /* - * Wait until the ODB wakes up - */ - - flags = splhigh(); - done = 0; - timeout_val = 5 * hz; - while (!done && timeout_val-- > 0) { - int chn; - - sscape_sleeper = &chn; - DO_SLEEP(chn, sscape_sleep_flag, 1); - - if (inb(PORT(HOST_DATA)) == 0xff) /* OBP startup acknowledge */ - done = 1; - } - splx(flags); - if (!done) { - printf("SoundScape: The OBP didn't respond after code download\n"); - return 0; - } - flags = splhigh(); - done = 0; - timeout_val = 5 * hz; - while (!done && timeout_val-- > 0) { - int chn; - - sscape_sleeper = &chn; - DO_SLEEP(chn, sscape_sleep_flag, 1); - - if (inb(PORT(HOST_DATA)) == 0xfe) /* Host startup acknowledge */ - done = 1; - } - splx(flags); - if (!done) { - printf("SoundScape: OBP Initialization failed.\n"); - return 0; - } - printf("SoundScape board of type %d initialized OK\n", - get_board_type(devc)); - - set_control(devc, CTL_MASTER_VOL, 100); - set_control(devc, CTL_SYNTH_VOL, 100); - -#ifdef SSCAPE_DEBUG3 - /* - * Temporary debugging aid. Print contents of the registers - * after downloading the code. - */ - { - int i; - - for (i = 0; i < 13; i++) - printf("I%d = %02x (new value)\n", i, sscape_read(devc, i)); - } -#endif - - } - return 1; -} - -static int -download_boot_block(void *dev_info, copr_buffer * buf) -{ - if (buf->len <= 0 || buf->len > sizeof(buf->data)) - return -(EINVAL); - - if (!sscape_download_boot(devc, buf->data, buf->len, buf->flags)) { - printf("SSCAPE: Unable to load microcode block to the OBP.\n"); - return -(EIO); - } - return 0; -} - -static int -sscape_coproc_ioctl(void *dev_info, u_int cmd, ioctl_arg arg, int local) -{ - - switch (cmd) { - case SNDCTL_COPR_RESET: - sscape_coproc_reset(dev_info); - return 0; - break; - - case SNDCTL_COPR_LOAD: - { - copr_buffer *buf; - int err; - - buf = (copr_buffer *) malloc(sizeof(copr_buffer), M_TEMP, M_WAITOK); - if (buf == NULL) - return -(ENOSPC); - bcopy(&(((char *) arg)[0]), (char *) buf, sizeof(*buf)); - err = download_boot_block(dev_info, buf); - free(buf, M_TEMP); - return err; - } - break; - - default: - return -(EINVAL); - } - -} - -static coproc_operations sscape_coproc_operations = -{ - "SoundScape M68K", - sscape_coproc_open, - sscape_coproc_close, - sscape_coproc_ioctl, - sscape_coproc_reset, - &dev_info -}; - -static int -sscape_audio_open(int dev, int mode) -{ - u_long flags; - sscape_info *devc = (sscape_info *) audio_devs[dev]->devc; - - flags = splhigh(); - if (devc->opened) { - splx(flags); - return -(EBUSY); - } - devc->opened = 1; - splx(flags); -#ifdef SSCAPE_DEBUG4 - /* - * Temporary debugging aid. Print contents of the registers when the - * device is opened. - */ - { - int i; - - for (i = 0; i < 13; i++) - printf("I%d = %02x\n", i, sscape_read(devc, i)); - } -#endif - - return 0; -} - -static void -sscape_audio_close(int dev) -{ - u_long flags; - sscape_info *devc = (sscape_info *) audio_devs[dev]->devc; - - DEB(printf("sscape_audio_close(void)\n")); - - flags = splhigh(); - - devc->opened = 0; - - splx(flags); -} - -static int -set_speed(sscape_info * devc, int arg) -{ - return 8000; -} - -static int -set_channels(sscape_info * devc, int arg) -{ - return 1; -} - -static int -set_format(sscape_info * devc, int arg) -{ - return AFMT_U8; -} - -static int -sscape_audio_ioctl(int dev, u_int cmd, ioctl_arg arg, int local) -{ - sscape_info *devc = (sscape_info *) audio_devs[dev]->devc; - - switch (cmd) { - case SOUND_PCM_WRITE_RATE: - if (local) - return set_speed(devc, (int) arg); - return *(int *) arg = set_speed(devc, (*(int *) arg)); - - case SOUND_PCM_READ_RATE: - if (local) - return 8000; - return *(int *) arg = 8000; - - case SNDCTL_DSP_STEREO: - if (local) - return set_channels(devc, (int) arg + 1) - 1; - return *(int *) arg = set_channels(devc, (*(int *) arg) + 1) - 1; - - case SOUND_PCM_WRITE_CHANNELS: - if (local) - return set_channels(devc, (int) arg); - return *(int *) arg = set_channels(devc, (*(int *) arg)); - - case SOUND_PCM_READ_CHANNELS: - if (local) - return 1; - return *(int *) arg = 1; - - case SNDCTL_DSP_SAMPLESIZE: - if (local) - return set_format(devc, (int) arg); - return *(int *) arg = set_format(devc, (*(int *) arg)); - - case SOUND_PCM_READ_BITS: - if (local) - return 8; - return *(int *) arg = 8; - - default:; - } - return -(EINVAL); -} - -static void -sscape_audio_output_block(int dev, u_long buf, int count, int intrflag, int dma_restart) -{ -} - -static void -sscape_audio_start_input(int dev, u_long buf, int count, int intrflag, int dma_restart) -{ -} - -static int -sscape_audio_prepare_for_input(int dev, int bsize, int bcount) -{ - return 0; -} - -static int -sscape_audio_prepare_for_output(int dev, int bsize, int bcount) -{ - return 0; -} - -static void -sscape_audio_halt(int dev) -{ -} - -static void -sscape_audio_reset(int dev) -{ - sscape_audio_halt(dev); -} - - -#if !defined(EXCLUDE_NATIVE_PCM) && defined(CONFIG_AUDIO) -static struct audio_operations sscape_audio_operations = -{ - "Not functional", - 0, - AFMT_U8 | AFMT_S16_LE, - NULL, - sscape_audio_open, - sscape_audio_close, - sscape_audio_output_block, - sscape_audio_start_input, - sscape_audio_ioctl, - sscape_audio_prepare_for_input, - sscape_audio_prepare_for_output, - sscape_audio_reset, - sscape_audio_halt, - NULL, - NULL -}; -#endif /* !defined(EXCLUDE_NATIVE_PCM) && defined(CONFIG_AUDIO) */ - -static int sscape_detected = 0; - -void -attach_sscape(struct address_info * hw_config) -{ -#ifndef SSCAPE_REGS - /* - * Config register values for Spea/V7 Media FX and Ensoniq S-2000. - * These values are card dependent. If you have another SoundScape - * based card, you have to find the correct values. Do the following: - * - Compile this driver with SSCAPE_DEBUG1 defined. - Shut down and - * power off your machine. - Boot with DOS so that the SSINIT.EXE - * program is run. - Warm boot to {Linux|SYSV|BSD} and write down the - * lines displayed when detecting the SoundScape. - Modify the - * following list to use the values printed during boot. Undefine the - * SSCAPE_DEBUG1 - */ -#define SSCAPE_REGS { \ -/* I0 */ 0x00, \ - 0xf0, /* Note! Ignored. Set always to 0xf0 */ \ - 0x20, /* Note! Ignored. Set always to 0x20 */ \ - 0x20, /* Note! Ignored. Set always to 0x20 */ \ - 0xf5, /* Ignored */ \ - 0x10, \ - 0x00, \ - 0x2e, /* I7 MEM config A. Likely to vary between models */ \ - 0x00, /* I8 MEM config B. Likely to vary between models */ \ -/* I9 */ 0x40 /* Ignored */ \ - } -#endif - - u_long flags; - static u_char regs[10] = SSCAPE_REGS; - - int i, irq_bits = 0xff; - - if (sscape_detected != hw_config->io_base) - return; - - if (old_hardware) { - valid_interrupts = valid_interrupts_old; - conf_printf("Ensoniq Soundscape (old)", hw_config); - } else - conf_printf("Ensoniq Soundscape", hw_config); - - for (i = 0; i < sizeof(valid_interrupts); i++) - if (hw_config->irq == valid_interrupts[i]) { - irq_bits = i; - break; - } - if (hw_config->irq > 15 || (regs[4] = irq_bits == 0xff)) { - printf("Invalid IRQ%d\n", hw_config->irq); - return; - } - flags = splhigh(); - - for (i = 1; i < 10; i++) - switch (i) { - case 1: /* Host interrupt enable */ - sscape_write(devc, i, 0xf0); /* All interrupts enabled */ - break; - - case 2: /* DMA A status/trigger register */ - case 3: /* DMA B status/trigger register */ - sscape_write(devc, i, 0x20); /* DMA channel disabled */ - break; - - case 4: /* Host interrupt config reg */ - sscape_write(devc, i, 0xf0 | (irq_bits << 2) | irq_bits); - break; - - case 5: /* Don't destroy CD-ROM DMA config bits (0xc0) */ - sscape_write(devc, i, (regs[i] & 0x3f) | - (sscape_read(devc, i) & 0xc0)); - break; - - case 6: /* CD-ROM config. Don't touch. */ - break; - - case 9: /* Master control reg. Don't modify CR-ROM - * bits. Disable SB emul */ - sscape_write(devc, i, (sscape_read(devc, i) & 0xf0) | 0x00); - break; - - default: - sscape_write(devc, i, regs[i]); - } - - splx(flags); - -#ifdef SSCAPE_DEBUG2 - /* - * Temporary debugging aid. Print contents of the registers after - * changing them. - */ - { - int i; - - for (i = 0; i < 13; i++) - printf("I%d = %02x (new value)\n", i, sscape_read(devc, i)); - } -#endif - -#if defined(CONFIG_MIDI) && defined(CONFIG_MPU_EMU) - if (probe_mpu401(hw_config)) - hw_config->always_detect = 1; - { - int prev_devs; - - prev_devs = num_midis; - attach_mpu401(hw_config); - - if (num_midis == (prev_devs + 1)) /* The MPU driver - * installed itself */ - midi_devs[prev_devs]->coproc = &sscape_coproc_operations; - } -#endif - -#ifndef EXCLUDE_NATIVE_PCM - /* Not supported yet */ - -#ifdef CONFIG_AUDIO - if (num_audiodevs < MAX_AUDIO_DEV) { - int my_dev; - - audio_devs[my_dev = num_audiodevs++] = &sscape_audio_operations; - audio_devs[my_dev]->dmachan1 = hw_config->dma; - audio_devs[my_dev]->buffsize = DSP_BUFFSIZE; - audio_devs[my_dev]->devc = devc; - devc->my_audiodev = my_dev; - devc->opened = 0; - audio_devs[my_dev]->coproc = &sscape_coproc_operations; - if (snd_set_irq_handler(hw_config->irq, sscapeintr, devc->osp) < 0) - printf("Error: Can't allocate IRQ for SoundScape\n"); - sscape_write(devc, GA_INTENA_REG, 0x80); /* Master IRQ enable */ - } else - printf("SoundScape: More than enough audio devices detected\n"); -#endif -#endif - devc->ok = 1; - devc->failed = 0; - return; -} - -int -probe_sscape(struct address_info * hw_config) -{ - u_char save; - - devc->failed = 1; - devc->base = hw_config->io_base; - devc->irq = hw_config->irq; - devc->dma = hw_config->dma; - devc->osp = hw_config->osp; - - if (sscape_detected != 0 && sscape_detected != hw_config->io_base) - return 0; - - /* - * First check that the address register of "ODIE" is there and that - * it has exactly 4 writeable bits. First 4 bits - */ - if ((save = inb(PORT(ODIE_ADDR))) & 0xf0) - return 0; - - outb(PORT(ODIE_ADDR), 0x00); - if (inb(PORT(ODIE_ADDR)) != 0x00) - return 0; - - outb(PORT(ODIE_ADDR), 0xff); - if (inb(PORT(ODIE_ADDR)) != 0x0f) - return 0; - - outb(PORT(ODIE_ADDR), save); - - /* - * Now verify that some indirect registers return zero on some bits. - * This may break the driver with some future revisions of "ODIE" - * but... - */ - - if (sscape_read(devc, 0) & 0x0c) - return 0; - - if (sscape_read(devc, 1) & 0x0f) - return 0; - - if (sscape_read(devc, 5) & 0x0f) - return 0; - -#ifdef SSCAPE_DEBUG1 - /* - * Temporary debugging aid. Print contents of the registers before - * changing them. - */ - { - int i; - - for (i = 0; i < 13; i++) - printf("I%d = %02x (old value)\n", i, sscape_read(devc, i)); - } -#endif - - if (old_hardware) { /* Check that it's really an old Spea/Reveal card. */ - u_char tmp; - int cc; - - if (!((tmp = sscape_read(devc, GA_HMCTL_REG)) & 0xc0)) { - sscape_write(devc, GA_HMCTL_REG, tmp | 0x80); - for (cc = 0; cc < 200000; ++cc) - inb(devc->base + ODIE_ADDR); - } else - old_hardware = 0; - } - if (0) { - printf("sscape.c: Can't allocate DMA channel\n"); - return 0; - } - sscape_detected = hw_config->io_base; - - return 1; -} - -int -probe_ss_mss(struct address_info * hw_config) -{ - int i, irq_bits = 0xff; - - if (devc->failed) - return 0; - - if (devc->ok == 0) { - printf("SoundScape: Invalid initialization order.\n"); - return 0; - } - for (i = 0; i < sizeof(valid_interrupts); i++) - if (hw_config->irq == valid_interrupts[i]) { - irq_bits = i; - break; - } - if (hw_config->irq > 15 || irq_bits == 0xff) { - printf("SoundScape: Invalid MSS IRQ%d\n", hw_config->irq); - return 0; - } - return ad1848_detect(hw_config->io_base, NULL, hw_config->osp); -} - -void -attach_ss_mss(struct address_info * hw_config) -{ - /* - * This routine configures the SoundScape card for use with the Win - * Sound System driver. The AD1848 codec interface uses the CD-ROM - * config registers of the "ODIE". - */ - - int i, irq_bits = 0xff; - -#ifndef CONFIG_NATIVE_PCM - int prev_devs = num_audiodevs; -#endif - - /* - * Setup the DMA polarity. - */ - sscape_write(devc, GA_DMACFG_REG, 0x50); - - /* - * Take the gate-arry off of the DMA channel. - */ - sscape_write(devc, GA_DMAB_REG, 0x20); - - /* - * Init the AD1848 (CD-ROM) config reg. - */ - - for (i = 0; i < sizeof(valid_interrupts); i++) - if (hw_config->irq == valid_interrupts[i]) { - irq_bits = i; - break; - } - sscape_write(devc, GA_CDCFG_REG, 0x89 | (hw_config->dma << 4) | - (irq_bits << 1)); - - if (hw_config->irq == devc->irq) - printf("SoundScape: Warning! WSS mode can't share IRQ with MIDI\n"); - - ad1848_init("SoundScape", hw_config->io_base, - hw_config->irq, - hw_config->dma, - hw_config->dma, - 0, - devc->osp); - -#ifndef CONFIG_NATIVE_PCM - /* Check if the AD1848 driver installed itself */ - if (num_audiodevs == (prev_devs + 1)) - audio_devs[prev_devs]->coproc = &sscape_coproc_operations; -#endif - - return; -} - -#endif |