| /* |
| * card-als4000.c - driver for Avance Logic ALS4000 based soundcards. |
| * Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>, |
| * Jaroslav Kysela <perex@suse.cz> |
| * |
| * Framework borrowed from Massimo Piccioni's card-als100.c. |
| * |
| * NOTES |
| * |
| * Since Avance does not provide any meaningful documentation, and I |
| * bought an ALS4000 based soundcard, I was forced to base this driver |
| * on reverse engineering. |
| * |
| * The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an |
| * ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport |
| * interface. These subsystems can be mapped into ISA io-port space, |
| * using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ |
| * services to the subsystems. |
| * |
| * While ALS4000 is very similar to a SoundBlaster, the differences in |
| * DMA and capturing require more changes to the SoundBlaster than |
| * desirable, so I made this separate driver. |
| * |
| * The ALS4000 can do real full duplex playback/capture. |
| * |
| * BUGS |
| * The box suggests there is some support for 3D sound, but I did not |
| * investigate this yet. |
| * |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include <sound/driver.h> |
| #include <asm/io.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/rawmidi.h> |
| #include <sound/mpu401.h> |
| #include <sound/opl3.h> |
| #include <sound/sb.h> |
| #define SNDRV_GET_ID |
| #include <sound/initval.h> |
| |
| EXPORT_NO_SYMBOLS; |
| |
| MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>"); |
| MODULE_DESCRIPTION("Avance Logic ALS4000"); |
| MODULE_LICENSE("GPL"); |
| MODULE_CLASSES("{sound}"); |
| MODULE_DEVICES("{{Avance Logic,ALS4000}}"); |
| |
| static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| static char *snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ |
| static int snd_joystick_port[SNDRV_CARDS] = |
| #ifdef CONFIG_ISA |
| {0x200}; /* enable as default */ |
| #else |
| {0}; /* disabled */ |
| #endif |
| |
| MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_index, "Index value for ALS4000 soundcard."); |
| MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC); |
| MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s"); |
| MODULE_PARM_DESC(snd_id, "ID string for ALS4000 soundcard."); |
| MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC); |
| MODULE_PARM(snd_enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_enable, "Enable ALS4000 soundcard."); |
| MODULE_PARM_SYNTAX(snd_enable, SNDRV_INDEX_DESC); |
| MODULE_PARM(snd_joystick_port, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)"); |
| MODULE_PARM_SYNTAX(snd_joystick_port, SNDRV_ENABLED); |
| |
| #define chip_t sb_t |
| |
| typedef struct { |
| unsigned long gcr; |
| } snd_card_als4000_t; |
| |
| static struct pci_device_id snd_als4000_ids[] __devinitdata = { |
| { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */ |
| { 0, } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, snd_als4000_ids); |
| |
| static inline void snd_als4000_gcr_write_addr(unsigned long port, u32 reg, u32 val) |
| { |
| outb(reg, port+0x0c); |
| outl(val, port+0x08); |
| } |
| |
| static inline void snd_als4000_gcr_write(sb_t *sb, u32 reg, u32 val) |
| { |
| snd_als4000_gcr_write_addr(sb->alt_port, reg, val); |
| } |
| |
| static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg) |
| { |
| outb(reg, port+0x0c); |
| return inl(port+0x08); |
| } |
| |
| static inline u32 snd_als4000_gcr_read(sb_t *sb, u32 reg) |
| { |
| return snd_als4000_gcr_read_addr(sb->alt_port, reg); |
| } |
| |
| static void snd_als4000_set_rate(sb_t *chip, unsigned int rate) |
| { |
| if (!(chip->mode & SB_RATE_LOCK)) { |
| snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT); |
| snd_sbdsp_command(chip, rate>>8); |
| snd_sbdsp_command(chip, rate); |
| } |
| } |
| |
| static void snd_als4000_set_capture_dma(sb_t *chip, dma_addr_t addr, unsigned size) |
| { |
| snd_als4000_gcr_write(chip, 0xa2, addr); |
| snd_als4000_gcr_write(chip, 0xa3, (size-1)); |
| } |
| |
| static void snd_als4000_set_playback_dma(sb_t *chip, dma_addr_t addr, unsigned size) |
| { |
| snd_als4000_gcr_write(chip, 0x91, addr); |
| snd_als4000_gcr_write(chip, 0x92, (size-1)|0x180000); |
| } |
| |
| #define ALS4000_FORMAT_SIGNED (1<<0) |
| #define ALS4000_FORMAT_16BIT (1<<1) |
| #define ALS4000_FORMAT_STEREO (1<<2) |
| |
| static int snd_als4000_get_format(snd_pcm_runtime_t *runtime) |
| { |
| int result; |
| |
| result = 0; |
| if (snd_pcm_format_signed(runtime->format)) |
| result |= ALS4000_FORMAT_SIGNED; |
| if (snd_pcm_format_physical_width(runtime->format) == 16) |
| result |= ALS4000_FORMAT_16BIT; |
| if (runtime->channels > 1) |
| result |= ALS4000_FORMAT_STEREO; |
| return result; |
| } |
| |
| /* structure for setting up playback */ |
| static struct { |
| unsigned char dsp_cmd, dma_on, dma_off, format; |
| } playback_cmd_vals[]={ |
| /* ALS4000_FORMAT_U8_MONO */ |
| { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO }, |
| /* ALS4000_FORMAT_S8_MONO */ |
| { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO }, |
| /* ALS4000_FORMAT_U16L_MONO */ |
| { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO }, |
| /* ALS4000_FORMAT_S16L_MONO */ |
| { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO }, |
| /* ALS4000_FORMAT_U8_STEREO */ |
| { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO }, |
| /* ALS4000_FORMAT_S8_STEREO */ |
| { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO }, |
| /* ALS4000_FORMAT_U16L_STEREO */ |
| { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO }, |
| /* ALS4000_FORMAT_S16L_STEREO */ |
| { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO }, |
| }; |
| #define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format]) |
| |
| /* structure for setting up capture */ |
| enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 }; |
| static unsigned char capture_cmd_vals[]= |
| { |
| CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */ |
| CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */ |
| CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */ |
| CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */ |
| CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */ |
| CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */ |
| CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */ |
| CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */ |
| }; |
| #define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format]) |
| |
| static int snd_als4000_hw_params(snd_pcm_substream_t * substream, |
| snd_pcm_hw_params_t * hw_params) |
| { |
| return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); |
| } |
| |
| static int snd_als4000_hw_free(snd_pcm_substream_t * substream) |
| { |
| snd_pcm_lib_free_pages(substream); |
| return 0; |
| } |
| |
| static int snd_als4000_capture_prepare(snd_pcm_substream_t * substream) |
| { |
| unsigned long flags; |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| unsigned long size; |
| unsigned count; |
| |
| chip->capture_format = snd_als4000_get_format(runtime); |
| |
| size = snd_pcm_lib_buffer_bytes(substream); |
| count = snd_pcm_lib_period_bytes(substream); |
| |
| if (chip->capture_format & ALS4000_FORMAT_16BIT) |
| count >>=1; |
| count--; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| snd_als4000_set_rate(chip, runtime->rate); |
| snd_als4000_set_capture_dma(chip, runtime->dma_addr, size); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| spin_lock_irqsave(&chip->mixer_lock, flags ); |
| snd_sbmixer_write(chip, 0xdc, count); |
| snd_sbmixer_write(chip, 0xdd, count>>8); |
| spin_unlock_irqrestore(&chip->mixer_lock, flags ); |
| return 0; |
| } |
| |
| static int snd_als4000_playback_prepare(snd_pcm_substream_t *substream) |
| { |
| unsigned long flags; |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| unsigned long size; |
| unsigned count; |
| |
| chip->playback_format = snd_als4000_get_format(runtime); |
| |
| size = snd_pcm_lib_buffer_bytes(substream); |
| count = snd_pcm_lib_period_bytes(substream); |
| |
| if (chip->playback_format & ALS4000_FORMAT_16BIT) |
| count >>=1; |
| count--; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| snd_als4000_set_rate(chip, runtime->rate); |
| snd_als4000_set_playback_dma(chip, runtime->dma_addr, size); |
| |
| snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); |
| snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd); |
| snd_sbdsp_command(chip, playback_cmd(chip).format); |
| snd_sbdsp_command(chip, count); |
| snd_sbdsp_command(chip, count>>8); |
| snd_sbdsp_command(chip, playback_cmd(chip).dma_off); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| |
| return 0; |
| } |
| |
| static int snd_als4000_capture_trigger(snd_pcm_substream_t * substream, int cmd) |
| { |
| unsigned long flags; |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| int result = 0; |
| |
| spin_lock_irqsave(&chip->mixer_lock, flags); |
| if (cmd == SNDRV_PCM_TRIGGER_START) { |
| chip->mode |= SB_RATE_LOCK_CAPTURE; |
| snd_sbmixer_write(chip, 0xde, capture_cmd(chip)); |
| } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
| chip->mode &= ~SB_RATE_LOCK_CAPTURE; |
| snd_sbmixer_write(chip, 0xde, 0); |
| } else { |
| result = -EINVAL; |
| } |
| spin_unlock_irqrestore(&chip->mixer_lock, flags); |
| return result; |
| } |
| |
| static int snd_als4000_playback_trigger(snd_pcm_substream_t * substream, int cmd) |
| { |
| unsigned long flags; |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| int result = 0; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| if (cmd == SNDRV_PCM_TRIGGER_START) { |
| chip->mode |= SB_RATE_LOCK_PLAYBACK; |
| snd_sbdsp_command(chip, playback_cmd(chip).dma_on); |
| } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
| snd_sbdsp_command(chip, playback_cmd(chip).dma_off); |
| chip->mode &= ~SB_RATE_LOCK_PLAYBACK; |
| } else { |
| result = -EINVAL; |
| } |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return result; |
| } |
| |
| static snd_pcm_uframes_t snd_als4000_capture_pointer(snd_pcm_substream_t * substream) |
| { |
| unsigned long flags; |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| unsigned int result; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff; |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return bytes_to_frames( substream->runtime, result ); |
| } |
| |
| static snd_pcm_uframes_t snd_als4000_playback_pointer(snd_pcm_substream_t * substream) |
| { |
| unsigned long flags; |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| unsigned result; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff; |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return bytes_to_frames( substream->runtime, result ); |
| } |
| |
| static void snd_als4000_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| sb_t *chip = snd_magic_cast(sb_t, dev_id, return); |
| unsigned long flags; |
| unsigned gcr_status; |
| unsigned sb_status; |
| |
| /* find out which bit of the ALS4000 produced the interrupt */ |
| gcr_status = inb(chip->alt_port + 0xe); |
| |
| if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */ |
| snd_pcm_period_elapsed(chip->playback_substream); |
| if ((gcr_status & 0x40) && (chip->capture_substream)) /* capturing */ |
| snd_pcm_period_elapsed(chip->capture_substream); |
| if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interupt */ |
| snd_mpu401_uart_interrupt(irq, chip->rmidi, regs); |
| /* release the gcr */ |
| outb(gcr_status, chip->alt_port + 0xe); |
| |
| spin_lock_irqsave(&chip->mixer_lock, flags); |
| sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS); |
| spin_unlock_irqrestore(&chip->mixer_lock, flags); |
| |
| if (sb_status & SB_IRQTYPE_8BIT) |
| inb(SBP(chip, DATA_AVAIL)); |
| if (sb_status & SB_IRQTYPE_16BIT) |
| inb(SBP(chip, DATA_AVAIL_16)); |
| if (sb_status & SB_IRQTYPE_MPUIN) |
| inb(chip->mpu_port); |
| if (sb_status & 0x20) |
| inb(SBP(chip, RESET)); |
| } |
| |
| /*****************************************************************/ |
| |
| static snd_pcm_hardware_t snd_als4000_playback = |
| { |
| info: (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_MMAP_VALID), |
| formats: SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | |
| SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ |
| rates: SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, |
| rate_min: 4000, |
| rate_max: 48000, |
| channels_min: 1, |
| channels_max: 2, |
| buffer_bytes_max: 65536, |
| period_bytes_min: 64, |
| period_bytes_max: 65536, |
| periods_min: 1, |
| periods_max: 1024, |
| fifo_size: 0 |
| }; |
| |
| static snd_pcm_hardware_t snd_als4000_capture = |
| { |
| info: (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_MMAP_VALID), |
| formats: SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | |
| SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ |
| rates: SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, |
| rate_min: 4000, |
| rate_max: 48000, |
| channels_min: 1, |
| channels_max: 2, |
| buffer_bytes_max: 65536, |
| period_bytes_min: 64, |
| period_bytes_max: 65536, |
| periods_min: 1, |
| periods_max: 1024, |
| fifo_size: 0 |
| }; |
| |
| /*****************************************************************/ |
| |
| static int snd_als4000_playback_open(snd_pcm_substream_t * substream) |
| { |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| |
| chip->playback_substream = substream; |
| runtime->hw = snd_als4000_playback; |
| return 0; |
| } |
| |
| static int snd_als4000_playback_close(snd_pcm_substream_t * substream) |
| { |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| |
| chip->playback_substream = NULL; |
| snd_pcm_lib_free_pages(substream); |
| return 0; |
| } |
| |
| static int snd_als4000_capture_open(snd_pcm_substream_t * substream) |
| { |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| |
| chip->capture_substream = substream; |
| runtime->hw = snd_als4000_capture; |
| return 0; |
| } |
| |
| static int snd_als4000_capture_close(snd_pcm_substream_t * substream) |
| { |
| sb_t *chip = snd_pcm_substream_chip(substream); |
| |
| chip->capture_substream = NULL; |
| snd_pcm_lib_free_pages(substream); |
| return 0; |
| } |
| |
| /******************************************************************/ |
| |
| static snd_pcm_ops_t snd_als4000_playback_ops = { |
| open: snd_als4000_playback_open, |
| close: snd_als4000_playback_close, |
| ioctl: snd_pcm_lib_ioctl, |
| hw_params: snd_als4000_hw_params, |
| hw_free: snd_als4000_hw_free, |
| prepare: snd_als4000_playback_prepare, |
| trigger: snd_als4000_playback_trigger, |
| pointer: snd_als4000_playback_pointer |
| }; |
| |
| static snd_pcm_ops_t snd_als4000_capture_ops = { |
| open: snd_als4000_capture_open, |
| close: snd_als4000_capture_close, |
| ioctl: snd_pcm_lib_ioctl, |
| hw_params: snd_als4000_hw_params, |
| hw_free: snd_als4000_hw_free, |
| prepare: snd_als4000_capture_prepare, |
| trigger: snd_als4000_capture_trigger, |
| pointer: snd_als4000_capture_pointer |
| }; |
| |
| static void snd_als4000_pcm_free(snd_pcm_t *pcm) |
| { |
| sb_t *chip = snd_magic_cast(sb_t, pcm->private_data, return); |
| chip->pcm = NULL; |
| snd_pcm_lib_preallocate_free_for_all(pcm); |
| } |
| |
| static int __devinit snd_als4000_pcm(sb_t *chip, int device) |
| { |
| snd_pcm_t *pcm; |
| int err; |
| |
| if ((err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm)) < 0) |
| return err; |
| pcm->private_free = snd_als4000_pcm_free; |
| pcm->private_data = chip; |
| pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops); |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops); |
| |
| snd_pcm_lib_preallocate_pci_pages_for_all(chip->pci, pcm, 64*1024, 64*1024); |
| |
| chip->pcm = pcm; |
| |
| return 0; |
| } |
| |
| /******************************************************************/ |
| |
| static void __devinit snd_als4000_set_addr(unsigned long gcr, |
| unsigned int sb, |
| unsigned int mpu, |
| unsigned int opl, |
| unsigned int game) |
| { |
| u32 confA = 0; |
| u32 confB = 0; |
| |
| if (mpu > 0) |
| confB |= (mpu | 1) << 16; |
| if (sb > 0) |
| confB |= (sb | 1); |
| if (game > 0) |
| confA |= (game | 1) << 16; |
| if (opl > 0) |
| confA |= (opl | 1); |
| snd_als4000_gcr_write_addr(gcr, 0xa8, confA); |
| snd_als4000_gcr_write_addr(gcr, 0xa9, confB); |
| } |
| |
| static void __devinit snd_als4000_configure(sb_t *chip) |
| { |
| unsigned long flags; |
| unsigned tmp; |
| int i; |
| |
| /* do some more configuration */ |
| spin_lock_irqsave(&chip->mixer_lock, flags); |
| tmp = snd_sbmixer_read(chip, 0xc0); |
| snd_sbmixer_write(chip, 0xc0, tmp|0x80); |
| /* always select DMA channel 0, since we do not actually use DMA */ |
| snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0); |
| snd_sbmixer_write(chip, 0xc0, tmp&0x7f); |
| spin_unlock_irqrestore(&chip->mixer_lock, flags); |
| |
| spin_lock_irqsave(&chip->reg_lock,flags); |
| /* magic number. Enables interrupts(?) */ |
| snd_als4000_gcr_write(chip, 0x8c, 0x28000); |
| for(i = 0x91; i <= 0x96; ++i) |
| snd_als4000_gcr_write(chip, i, 0); |
| |
| snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99)); |
| spin_unlock_irqrestore(&chip->reg_lock,flags); |
| } |
| |
| static void snd_card_als4k_free( snd_card_t *card ) |
| { |
| snd_card_als4000_t * acard = (snd_card_als4000_t *)card->private_data; |
| /* make sure that interrupts are disabled */ |
| snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0); |
| } |
| |
| static int __devinit snd_card_als4k_probe(struct pci_dev *pci, |
| const struct pci_device_id *id) |
| { |
| static int dev = 0; |
| snd_card_t *card; |
| snd_card_als4000_t *acard; |
| unsigned long gcr; |
| struct resource *res_gcr_port; |
| sb_t *chip; |
| opl3_t *opl3; |
| unsigned short word; |
| int err; |
| |
| if (dev >= SNDRV_CARDS) |
| return -ENODEV; |
| if (!snd_enable[dev]) { |
| dev++; |
| return -ENOENT; |
| } |
| |
| /* enable PCI device */ |
| if ((err = pci_enable_device(pci)) < 0) { |
| return err; |
| } |
| /* check, if we can restrict PCI DMA transfers to 24 bits */ |
| if (!pci_dma_supported(pci, 0x00ffffff)) { |
| snd_printk("architecture does not support 24bit PCI busmaster DMA\n"); |
| return -ENXIO; |
| } |
| pci_set_dma_mask(pci, 0x00ffffff); |
| |
| gcr = pci_resource_start(pci, 0); |
| if ((res_gcr_port = request_region(gcr, 0x40, "ALS4000")) == NULL) { |
| snd_printk("unable to grab region 0x%lx-0x%lx\n", gcr, gcr + 0x40 - 1); |
| return -EBUSY; |
| } |
| |
| pci_read_config_word(pci, PCI_COMMAND, &word); |
| pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO); |
| pci_set_master(pci); |
| |
| /* disable all legacy ISA stuff except for joystick */ |
| snd_als4000_set_addr(gcr, 0, 0, 0, snd_joystick_port[dev]); |
| |
| card = snd_card_new(snd_index[dev], snd_id[dev], THIS_MODULE, |
| sizeof( snd_card_als4000_t ) ); |
| if (card == NULL) { |
| release_resource(res_gcr_port); |
| kfree_nocheck(res_gcr_port); |
| return -ENOMEM; |
| } |
| |
| acard = (snd_card_als4000_t *)card->private_data; |
| acard->gcr = gcr; |
| card->private_free = snd_card_als4k_free; |
| |
| if ((err = snd_sbdsp_create(card, |
| gcr + 0x10, |
| pci->irq, |
| snd_als4000_interrupt, |
| -1, |
| -1, |
| SB_HW_ALS4000, |
| &chip)) < 0) { |
| release_resource(res_gcr_port); |
| kfree_nocheck(res_gcr_port); |
| snd_card_free(card); |
| return err; |
| } |
| |
| chip->pci = pci; |
| chip->alt_port = gcr; |
| chip->res_alt_port = res_gcr_port; |
| |
| snd_als4000_configure(chip); |
| |
| if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000, |
| gcr+0x30, 1, pci->irq, 0, |
| &chip->rmidi)) < 0) { |
| snd_card_free(card); |
| printk(KERN_ERR "als4000: no MPU-401device at 0x%lx ?\n", gcr+0x30); |
| return err; |
| } |
| |
| if ((err = snd_als4000_pcm(chip, 0)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| if ((err = snd_sbmixer_new(chip)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| if (snd_opl3_create(card, gcr+0x10, gcr+0x12, |
| OPL3_HW_AUTO, 1, &opl3) < 0) { |
| printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx ?\n", |
| gcr+0x10, gcr+0x12 ); |
| } else { |
| if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| } |
| |
| strcpy(card->driver, "ALS4000"); |
| strcpy(card->shortname, "Avance Logic ALS4000"); |
| sprintf(card->longname, "%s at 0x%lx, irq %i", |
| card->shortname, chip->alt_port, chip->irq); |
| |
| if ((err = snd_card_register(card)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| pci_set_drvdata(pci, card); |
| dev++; |
| return 0; |
| } |
| |
| static void __devexit snd_card_als4k_remove(struct pci_dev *pci) |
| { |
| snd_card_free(pci_get_drvdata(pci)); |
| pci_set_drvdata(pci, NULL); |
| } |
| |
| static struct pci_driver driver = { |
| name: "ALS4000", |
| id_table: snd_als4000_ids, |
| probe: snd_card_als4k_probe, |
| remove: __devexit_p(snd_card_als4k_remove), |
| }; |
| |
| static int __init alsa_card_als4k_init(void) |
| { |
| int err; |
| |
| if ((err = pci_module_init(&driver)) < 0) { |
| #ifdef MODULE |
| printk(KERN_ERR "no ALS4000 based soundcards found or device busy\n"); |
| #endif |
| return err; |
| } |
| return 0; |
| } |
| |
| static void __exit alsa_card_als4k_exit(void) |
| { |
| pci_unregister_driver(&driver); |
| } |
| |
| module_init(alsa_card_als4k_init) |
| module_exit(alsa_card_als4k_exit) |
| |
| #ifndef MODULE |
| |
| /* format is: snd-als4000=snd_enable,snd_index,snd_id */ |
| |
| static int __init alsa_card_als4000_setup(char *str) |
| { |
| static unsigned __initdata nr_dev = 0; |
| |
| if (nr_dev >= SNDRV_CARDS) |
| return 0; |
| (void)(get_option(&str,&snd_enable[nr_dev]) == 2 && |
| get_option(&str,&snd_index[nr_dev]) == 2 && |
| get_id(&str,&snd_id[nr_dev]) == 2); |
| nr_dev++; |
| return 1; |
| } |
| |
| __setup("snd-als4000=", alsa_card_als4000_setup); |
| |
| #endif /* ifndef MODULE */ |