diff options
Diffstat (limited to 'sound/pci/als4000.c')
| -rw-r--r-- | sound/pci/als4000.c | 789 |
1 files changed, 789 insertions, 0 deletions
diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c new file mode 100644 index 00000000000..f1a5f5723ee --- /dev/null +++ b/sound/pci/als4000.c @@ -0,0 +1,789 @@ +/* + * 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> + * Copyright (C) 2002 by Andreas Mohr <hw7oshyuv3001@sneakemail.com> + * + * 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. + * + * Note: this is no longer true. Pretty verbose chip docu (ALS4000a.PDF) + * can be found on the ALSA web site. + * + * 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. + * + * FMDAC: + * - 0x4f -> port 0x14 + * - port 0x15 |= 1 + * + * Enable/disable 3D sound: + * - 0x50 -> port 0x14 + * - change bit 6 (0x40) of port 0x15 + * + * Set QSound: + * - 0xdb -> port 0x14 + * - set port 0x15: + * 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0) + * + * Set KSound: + * - value -> some port 0x0c0d + * + * 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/pci.h> +#include <linux/slab.h> +#include <linux/gameport.h> +#include <linux/moduleparam.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> +#include <sound/initval.h> + +MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>"); +MODULE_DESCRIPTION("Avance Logic ALS4000"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}"); + +#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) +#define SUPPORT_JOYSTICK 1 +#endif + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ +#ifdef SUPPORT_JOYSTICK +static int joystick_port[SNDRV_CARDS]; +#endif + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard."); +#ifdef SUPPORT_JOYSTICK +module_param_array(joystick_port, int, NULL, 0444); +MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)"); +#endif + +typedef struct { + struct pci_dev *pci; + unsigned long gcr; +#ifdef SUPPORT_JOYSTICK + struct gameport *gameport; +#endif +} snd_card_als4000_t; + +static struct pci_device_id snd_als4000_ids[] = { + { 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--; + + /* FIXME: from second playback on, there's a lot more clicks and pops + * involved here than on first playback. Fiddling with + * tons of different settings didn't help (DMA, speaker on/off, + * reordering, ...). Something seems to get enabled on playback + * that I haven't found out how to disable again, which then causes + * the switching pops to reach the speakers the next time here. */ + spin_lock_irqsave(&chip->reg_lock, flags); + snd_als4000_set_rate(chip, runtime->rate); + snd_als4000_set_playback_dma(chip, runtime->dma_addr, size); + + /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */ + /* 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) +{ + sb_t *chip = snd_pcm_substream_chip(substream); + int result = 0; + + spin_lock(&chip->mixer_lock); + 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(&chip->mixer_lock); + return result; +} + +static int snd_als4000_playback_trigger(snd_pcm_substream_t * substream, int cmd) +{ + sb_t *chip = snd_pcm_substream_chip(substream); + int result = 0; + + spin_lock(&chip->reg_lock); + 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(&chip->reg_lock); + return result; +} + +static snd_pcm_uframes_t snd_als4000_capture_pointer(snd_pcm_substream_t * substream) +{ + sb_t *chip = snd_pcm_substream_chip(substream); + unsigned int result; + + spin_lock(&chip->reg_lock); + result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff; + spin_unlock(&chip->reg_lock); + return bytes_to_frames( substream->runtime, result ); +} + +static snd_pcm_uframes_t snd_als4000_playback_pointer(snd_pcm_substream_t * substream) +{ + sb_t *chip = snd_pcm_substream_chip(substream); + unsigned result; + + spin_lock(&chip->reg_lock); + result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff; + spin_unlock(&chip->reg_lock); + return bytes_to_frames( substream->runtime, result ); +} + +static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + sb_t *chip = dev_id; + 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 interrupt */ + snd_mpu401_uart_interrupt(irq, chip->rmidi, regs); + /* release the gcr */ + outb(gcr_status, chip->alt_port + 0xe); + + spin_lock(&chip->mixer_lock); + sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS); + spin_unlock(&chip->mixer_lock); + + if (sb_status & SB_IRQTYPE_8BIT) + snd_sb_ack_8bit(chip); + if (sb_status & SB_IRQTYPE_16BIT) + snd_sb_ack_16bit(chip); + if (sb_status & SB_IRQTYPE_MPUIN) + inb(chip->mpu_port); + if (sb_status & 0x20) + inb(SBP(chip, RESET)); + return IRQ_HANDLED; +} + +/*****************************************************************/ + +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 = pcm->private_data; + 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_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), + 64*1024, 64*1024); + + chip->pcm = pcm; + + return 0; +} + +/******************************************************************/ + +static void 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 tmp; + int i; + + /* do some more configuration */ + spin_lock_irq(&chip->mixer_lock); + 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_irq(&chip->mixer_lock); + + spin_lock_irq(&chip->reg_lock); + /* 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_irq(&chip->reg_lock); +} + +#ifdef SUPPORT_JOYSTICK +static int __devinit snd_als4000_create_gameport(snd_card_als4000_t *acard, int dev) +{ + struct gameport *gp; + struct resource *r; + int io_port; + + if (joystick_port[dev] == 0) + return -ENODEV; + + if (joystick_port[dev] == 1) { /* auto-detect */ + for (io_port = 0x200; io_port <= 0x218; io_port += 8) { + r = request_region(io_port, 8, "ALS4000 gameport"); + if (r) + break; + } + } else { + io_port = joystick_port[dev]; + r = request_region(io_port, 8, "ALS4000 gameport"); + } + + if (!r) { + printk(KERN_WARNING "als4000: cannot reserve joystick ports\n"); + return -EBUSY; + } + + acard->gameport = gp = gameport_allocate_port(); + if (!gp) { + printk(KERN_ERR "als4000: cannot allocate memory for gameport\n"); + release_resource(r); + kfree_nocheck(r); + return -ENOMEM; + } + + gameport_set_name(gp, "ALS4000 Gameport"); + gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci)); + gameport_set_dev_parent(gp, &acard->pci->dev); + gp->io = io_port; + gameport_set_port_data(gp, r); + + /* Enable legacy joystick port */ + snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1); + + gameport_register_port(acard->gameport); + + return 0; +} + +static void snd_als4000_free_gameport(snd_card_als4000_t *acard) +{ + if (acard->gameport) { + struct resource *r = gameport_get_port_data(acard->gameport); + + gameport_unregister_port(acard->gameport); + acard->gameport = NULL; + + snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */ + release_resource(r); + kfree_nocheck(r); + } +} +#else +static inline int snd_als4000_create_gameport(snd_card_als4000_t *acard, int dev) { return -ENOSYS; } +static inline void snd_als4000_free_gameport(snd_card_als4000_t *acard) { } +#endif + +static void snd_card_als4000_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); + /* free resources */ + snd_als4000_free_gameport(acard); + pci_release_regions(acard->pci); + pci_disable_device(acard->pci); +} + +static int __devinit snd_card_als4000_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) +{ + static int dev; + snd_card_t *card; + snd_card_als4000_t *acard; + unsigned long gcr; + sb_t *chip; + opl3_t *opl3; + unsigned short word; + int err; + + if (dev >= SNDRV_CARDS) + return -ENODEV; + if (!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_set_dma_mask(pci, 0x00ffffff) < 0 || + pci_set_consistent_dma_mask(pci, 0x00ffffff) < 0) { + snd_printk("architecture does not support 24bit PCI busmaster DMA\n"); + pci_disable_device(pci); + return -ENXIO; + } + + if ((err = pci_request_regions(pci, "ALS4000")) < 0) { + pci_disable_device(pci); + return err; + } + gcr = pci_resource_start(pci, 0); + + pci_read_config_word(pci, PCI_COMMAND, &word); + pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO); + pci_set_master(pci); + + card = snd_card_new(index[dev], id[dev], THIS_MODULE, + sizeof( snd_card_als4000_t ) ); + if (card == NULL) { + pci_release_regions(pci); + pci_disable_device(pci); + return -ENOMEM; + } + + acard = (snd_card_als4000_t *)card->private_data; + acard->pci = pci; + acard->gcr = gcr; + card->private_free = snd_card_als4000_free; + + /* disable all legacy ISA stuff */ + snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); + + if ((err = snd_sbdsp_create(card, + gcr + 0x10, + pci->irq, + snd_als4000_interrupt, + -1, + -1, + SB_HW_ALS4000, + &chip)) < 0) { + snd_card_free(card); + return err; + } + + chip->pci = pci; + chip->alt_port = gcr; + snd_card_set_dev(card, &pci->dev); + + snd_als4000_configure(chip); + + 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_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; + } + } + + snd_als4000_create_gameport(acard, dev); + + 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_als4000_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_als4000_probe, + .remove = __devexit_p(snd_card_als4000_remove), +}; + +static int __init alsa_card_als4000_init(void) +{ + return pci_module_init(&driver); +} + +static void __exit alsa_card_als4000_exit(void) +{ + pci_unregister_driver(&driver); +} + +module_init(alsa_card_als4000_init) +module_exit(alsa_card_als4000_exit) |