| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jaroslav Kysela | 5468 | 90.26% | 7 | 25.00% |
| Takashi Iwai | 258 | 4.26% | 8 | 28.57% |
| Clemens Ladisch | 183 | 3.02% | 2 | 7.14% |
| Al Viro | 75 | 1.24% | 2 | 7.14% |
| Alexey Dobriyan | 22 | 0.36% | 2 | 7.14% |
| Harvey Harrison | 14 | 0.23% | 1 | 3.57% |
| Li Zefan | 13 | 0.21% | 1 | 3.57% |
| Dan Carpenter | 13 | 0.21% | 1 | 3.57% |
| Ingo Molnar | 6 | 0.10% | 1 | 3.57% |
| Paul Gortmaker | 3 | 0.05% | 1 | 3.57% |
| Bhumika Goyal | 2 | 0.03% | 1 | 3.57% |
| Benjamin Collins | 1 | 0.02% | 1 | 3.57% |
| Total | 6058 | 28 |
/* * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> * Takashi Iwai <tiwai@suse.de> * * SB16ASP/AWE32 CSP control * * CSP microcode loader: * alsa-tools/sb16_csp/ * * 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 <linux/delay.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/module.h> #include <sound/core.h> #include <sound/control.h> #include <sound/info.h> #include <sound/sb16_csp.h> #include <sound/initval.h> MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>"); MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor"); MODULE_LICENSE("GPL"); MODULE_FIRMWARE("sb16/mulaw_main.csp"); MODULE_FIRMWARE("sb16/alaw_main.csp"); MODULE_FIRMWARE("sb16/ima_adpcm_init.csp"); MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp"); MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp"); #ifdef SNDRV_LITTLE_ENDIAN #define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24)) #else #define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24)) #endif #define RIFF_HEADER CSP_HDR_VALUE('R', 'I', 'F', 'F') #define CSP__HEADER CSP_HDR_VALUE('C', 'S', 'P', ' ') #define LIST_HEADER CSP_HDR_VALUE('L', 'I', 'S', 'T') #define FUNC_HEADER CSP_HDR_VALUE('f', 'u', 'n', 'c') #define CODE_HEADER CSP_HDR_VALUE('c', 'o', 'd', 'e') #define INIT_HEADER CSP_HDR_VALUE('i', 'n', 'i', 't') #define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n') /* * RIFF data format */ struct riff_header { __le32 name; __le32 len; }; struct desc_header { struct riff_header info; __le16 func_nr; __le16 VOC_type; __le16 flags_play_rec; __le16 flags_16bit_8bit; __le16 flags_stereo_mono; __le16 flags_rates; }; /* * prototypes */ static void snd_sb_csp_free(struct snd_hwdep *hw); static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file); static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg); static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file); static int csp_detect(struct snd_sb *chip, int *version); static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val); static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val); static int read_register(struct snd_sb *chip, unsigned char reg); static int set_mode_register(struct snd_sb *chip, unsigned char mode); static int get_version(struct snd_sb *chip); static int snd_sb_csp_riff_load(struct snd_sb_csp * p, struct snd_sb_csp_microcode __user * code); static int snd_sb_csp_unload(struct snd_sb_csp * p); static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags); static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode); static int snd_sb_csp_check_version(struct snd_sb_csp * p); static int snd_sb_csp_use(struct snd_sb_csp * p); static int snd_sb_csp_unuse(struct snd_sb_csp * p); static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels); static int snd_sb_csp_stop(struct snd_sb_csp * p); static int snd_sb_csp_pause(struct snd_sb_csp * p); static int snd_sb_csp_restart(struct snd_sb_csp * p); static int snd_sb_qsound_build(struct snd_sb_csp * p); static void snd_sb_qsound_destroy(struct snd_sb_csp * p); static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p); static int init_proc_entry(struct snd_sb_csp * p, int device); static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer); /* * Detect CSP chip and create a new instance */ int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep) { struct snd_sb_csp *p; int uninitialized_var(version); int err; struct snd_hwdep *hw; if (rhwdep) *rhwdep = NULL; if (csp_detect(chip, &version)) return -ENODEV; if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0) return err; if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) { snd_device_free(chip->card, hw); return -ENOMEM; } p->chip = chip; p->version = version; /* CSP operators */ p->ops.csp_use = snd_sb_csp_use; p->ops.csp_unuse = snd_sb_csp_unuse; p->ops.csp_autoload = snd_sb_csp_autoload; p->ops.csp_start = snd_sb_csp_start; p->ops.csp_stop = snd_sb_csp_stop; p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer; mutex_init(&p->access_mutex); sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f)); hw->iface = SNDRV_HWDEP_IFACE_SB16CSP; hw->private_data = p; hw->private_free = snd_sb_csp_free; /* operators - only write/ioctl */ hw->ops.open = snd_sb_csp_open; hw->ops.ioctl = snd_sb_csp_ioctl; hw->ops.release = snd_sb_csp_release; /* create a proc entry */ init_proc_entry(p, device); if (rhwdep) *rhwdep = hw; return 0; } /* * free_private for hwdep instance */ static void snd_sb_csp_free(struct snd_hwdep *hwdep) { int i; struct snd_sb_csp *p = hwdep->private_data; if (p) { if (p->running & SNDRV_SB_CSP_ST_RUNNING) snd_sb_csp_stop(p); for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i) release_firmware(p->csp_programs[i]); kfree(p); } } /* ------------------------------ */ /* * open the device exclusively */ static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file) { struct snd_sb_csp *p = hw->private_data; return (snd_sb_csp_use(p)); } /* * ioctl for hwdep device: */ static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg) { struct snd_sb_csp *p = hw->private_data; struct snd_sb_csp_info info; struct snd_sb_csp_start start_info; int err; if (snd_BUG_ON(!p)) return -EINVAL; if (snd_sb_csp_check_version(p)) return -ENODEV; switch (cmd) { /* get information */ case SNDRV_SB_CSP_IOCTL_INFO: memset(&info, 0, sizeof(info)); *info.codec_name = *p->codec_name; info.func_nr = p->func_nr; info.acc_format = p->acc_format; info.acc_channels = p->acc_channels; info.acc_width = p->acc_width; info.acc_rates = p->acc_rates; info.csp_mode = p->mode; info.run_channels = p->run_channels; info.run_width = p->run_width; info.version = p->version; info.state = p->running; if (copy_to_user((void __user *)arg, &info, sizeof(info))) err = -EFAULT; else err = 0; break; /* load CSP microcode */ case SNDRV_SB_CSP_IOCTL_LOAD_CODE: err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg)); break; case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE: err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? -EBUSY : snd_sb_csp_unload(p)); break; /* change CSP running state */ case SNDRV_SB_CSP_IOCTL_START: if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info))) err = -EFAULT; else err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels); break; case SNDRV_SB_CSP_IOCTL_STOP: err = snd_sb_csp_stop(p); break; case SNDRV_SB_CSP_IOCTL_PAUSE: err = snd_sb_csp_pause(p); break; case SNDRV_SB_CSP_IOCTL_RESTART: err = snd_sb_csp_restart(p); break; default: err = -ENOTTY; break; } return err; } /* * close the device */ static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file) { struct snd_sb_csp *p = hw->private_data; return (snd_sb_csp_unuse(p)); } /* ------------------------------ */ /* * acquire device */ static int snd_sb_csp_use(struct snd_sb_csp * p) { mutex_lock(&p->access_mutex); if (p->used) { mutex_unlock(&p->access_mutex); return -EAGAIN; } p->used++; mutex_unlock(&p->access_mutex); return 0; } /* * release device */ static int snd_sb_csp_unuse(struct snd_sb_csp * p) { mutex_lock(&p->access_mutex); p->used--; mutex_unlock(&p->access_mutex); return 0; } /* * load microcode via ioctl: * code is user-space pointer */ static int snd_sb_csp_riff_load(struct snd_sb_csp * p, struct snd_sb_csp_microcode __user * mcode) { struct snd_sb_csp_mc_header info; unsigned char __user *data_ptr; unsigned char __user *data_end; unsigned short func_nr = 0; struct riff_header file_h, item_h, code_h; __le32 item_type; struct desc_header funcdesc_h; unsigned long flags; int err; if (copy_from_user(&info, mcode, sizeof(info))) return -EFAULT; data_ptr = mcode->data; if (copy_from_user(&file_h, data_ptr, sizeof(file_h))) return -EFAULT; if ((le32_to_cpu(file_h.name) != RIFF_HEADER) || (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) { snd_printd("%s: Invalid RIFF header\n", __func__); return -EINVAL; } data_ptr += sizeof(file_h); data_end = data_ptr + le32_to_cpu(file_h.len); if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) return -EFAULT; if (le32_to_cpu(item_type) != CSP__HEADER) { snd_printd("%s: Invalid RIFF file type\n", __func__); return -EINVAL; } data_ptr += sizeof (item_type); for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) { if (copy_from_user(&item_h, data_ptr, sizeof(item_h))) return -EFAULT; data_ptr += sizeof(item_h); if (le32_to_cpu(item_h.name) != LIST_HEADER) continue; if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) return -EFAULT; switch (le32_to_cpu(item_type)) { case FUNC_HEADER: if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h))) return -EFAULT; func_nr = le16_to_cpu(funcdesc_h.func_nr); break; case CODE_HEADER: if (func_nr != info.func_req) break; /* not required function, try next */ data_ptr += sizeof(item_type); /* destroy QSound mixer element */ if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { snd_sb_qsound_destroy(p); } /* Clear all flags */ p->running = 0; p->mode = 0; /* load microcode blocks */ for (;;) { if (data_ptr >= data_end) return -EINVAL; if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) return -EFAULT; /* init microcode blocks */ if (le32_to_cpu(code_h.name) != INIT_HEADER) break; data_ptr += sizeof(code_h); err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len), SNDRV_SB_CSP_LOAD_INITBLOCK); if (err) return err; data_ptr += le32_to_cpu(code_h.len); } /* main microcode block */ if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) return -EFAULT; if (le32_to_cpu(code_h.name) != MAIN_HEADER) { snd_printd("%s: Missing 'main' microcode\n", __func__); return -EINVAL; } data_ptr += sizeof(code_h); err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len), 0); if (err) return err; /* fill in codec header */ strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name)); p->func_nr = func_nr; p->mode = le16_to_cpu(funcdesc_h.flags_play_rec); switch (le16_to_cpu(funcdesc_h.VOC_type)) { case 0x0001: /* QSound decoder */ if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) { if (snd_sb_qsound_build(p) == 0) /* set QSound flag and clear all other mode flags */ p->mode = SNDRV_SB_CSP_MODE_QSOUND; } p->acc_format = 0; break; case 0x0006: /* A Law codec */ p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; break; case 0x0007: /* Mu Law codec */ p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; break; case 0x0011: /* what Creative thinks is IMA ADPCM codec */ case 0x0200: /* Creative ADPCM codec */ p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; break; case 201: /* Text 2 Speech decoder */ /* TODO: Text2Speech handling routines */ p->acc_format = 0; break; case 0x0202: /* Fast Speech 8 codec */ case 0x0203: /* Fast Speech 10 codec */ p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL; break; default: /* other codecs are unsupported */ p->acc_format = p->acc_width = p->acc_rates = 0; p->mode = 0; snd_printd("%s: Unsupported CSP codec type: 0x%04x\n", __func__, le16_to_cpu(funcdesc_h.VOC_type)); return -EINVAL; } p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono); p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit); p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates); /* Decouple CSP from IRQ and DMAREQ lines */ spin_lock_irqsave(&p->chip->reg_lock, flags); set_mode_register(p->chip, 0xfc); set_mode_register(p->chip, 0x00); spin_unlock_irqrestore(&p->chip->reg_lock, flags); /* finished loading successfully */ p->running = SNDRV_SB_CSP_ST_LOADED; /* set LOADED flag */ return 0; } } snd_printd("%s: Function #%d not found\n", __func__, info.func_req); return -EINVAL; } /* * unload CSP microcode */ static int snd_sb_csp_unload(struct snd_sb_csp * p) { if (p->running & SNDRV_SB_CSP_ST_RUNNING) return -EBUSY; if (!(p->running & SNDRV_SB_CSP_ST_LOADED)) return -ENXIO; /* clear supported formats */ p->acc_format = 0; p->acc_channels = p->acc_width = p->acc_rates = 0; /* destroy QSound mixer element */ if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { snd_sb_qsound_destroy(p); } /* clear all flags */ p->running = 0; p->mode = 0; return 0; } /* * send command sequence to DSP */ static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size) { int i; for (i = 0; i < size; i++) { if (!snd_sbdsp_command(chip, seq[i])) return -EIO; } return 0; } /* * set CSP codec parameter */ static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val) { unsigned char dsp_cmd[3]; dsp_cmd[0] = 0x05; /* CSP set codec parameter */ dsp_cmd[1] = val; /* Parameter value */ dsp_cmd[2] = par; /* Parameter */ command_seq(chip, dsp_cmd, 3); snd_sbdsp_command(chip, 0x03); /* DSP read? */ if (snd_sbdsp_get_byte(chip) != par) return -EIO; return 0; } /* * set CSP register */ static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val) { unsigned char dsp_cmd[3]; dsp_cmd[0] = 0x0e; /* CSP set register */ dsp_cmd[1] = reg; /* CSP Register */ dsp_cmd[2] = val; /* value */ return command_seq(chip, dsp_cmd, 3); } /* * read CSP register * return < 0 -> error */ static int read_register(struct snd_sb *chip, unsigned char reg) { unsigned char dsp_cmd[2]; dsp_cmd[0] = 0x0f; /* CSP read register */ dsp_cmd[1] = reg; /* CSP Register */ command_seq(chip, dsp_cmd, 2); return snd_sbdsp_get_byte(chip); /* Read DSP value */ } /* * set CSP mode register */ static int set_mode_register(struct snd_sb *chip, unsigned char mode) { unsigned char dsp_cmd[2]; dsp_cmd[0] = 0x04; /* CSP set mode register */ dsp_cmd[1] = mode; /* mode */ return command_seq(chip, dsp_cmd, 2); } /* * Detect CSP * return 0 if CSP exists. */ static int csp_detect(struct snd_sb *chip, int *version) { unsigned char csp_test1, csp_test2; unsigned long flags; int result = -ENODEV; spin_lock_irqsave(&chip->reg_lock, flags); set_codec_parameter(chip, 0x00, 0x00); set_mode_register(chip, 0xfc); /* 0xfc = ?? */ csp_test1 = read_register(chip, 0x83); set_register(chip, 0x83, ~csp_test1); csp_test2 = read_register(chip, 0x83); if (csp_test2 != (csp_test1 ^ 0xff)) goto __fail; set_register(chip, 0x83, csp_test1); csp_test2 = read_register(chip, 0x83); if (csp_test2 != csp_test1) goto __fail; set_mode_register(chip, 0x00); /* 0x00 = ? */ *version = get_version(chip); snd_sbdsp_reset(chip); /* reset DSP after getversion! */ if (*version >= 0x10 && *version <= 0x1f) result = 0; /* valid version id */ __fail: spin_unlock_irqrestore(&chip->reg_lock, flags); return result; } /* * get CSP version number */ static int get_version(struct snd_sb *chip) { unsigned char dsp_cmd[2]; dsp_cmd[0] = 0x08; /* SB_DSP_!something! */ dsp_cmd[1] = 0x03; /* get chip version id? */ command_seq(chip, dsp_cmd, 2); return (snd_sbdsp_get_byte(chip)); } /* * check if the CSP version is valid */ static int snd_sb_csp_check_version(struct snd_sb_csp * p) { if (p->version < 0x10 || p->version > 0x1f) { snd_printd("%s: Invalid CSP version: 0x%x\n", __func__, p->version); return 1; } return 0; } /* * download microcode to CSP (microcode should have one "main" block). */ static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags) { int status, i; int err; int result = -EIO; unsigned long flags; spin_lock_irqsave(&p->chip->reg_lock, flags); snd_sbdsp_command(p->chip, 0x01); /* CSP download command */ if (snd_sbdsp_get_byte(p->chip)) { snd_printd("%s: Download command failed\n", __func__); goto __fail; } /* Send CSP low byte (size - 1) */ snd_sbdsp_command(p->chip, (unsigned char)(size - 1)); /* Send high byte */ snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8)); /* send microcode sequence */ /* load from kernel space */ while (size--) { if (!snd_sbdsp_command(p->chip, *buf++)) goto __fail; } if (snd_sbdsp_get_byte(p->chip)) goto __fail; if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) { i = 0; /* some codecs (FastSpeech) take some time to initialize */ while (1) { snd_sbdsp_command(p->chip, 0x03); status = snd_sbdsp_get_byte(p->chip); if (status == 0x55 || ++i >= 10) break; udelay (10); } if (status != 0x55) { snd_printd("%s: Microcode initialization failed\n", __func__); goto __fail; } } else { /* * Read mixer register SB_DSP4_DMASETUP after loading 'main' code. * Start CSP chip if no 16bit DMA channel is set - some kind * of autorun or perhaps a bugfix? */ spin_lock(&p->chip->mixer_lock); status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP); spin_unlock(&p->chip->mixer_lock); if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) { err = (set_codec_parameter(p->chip, 0xaa, 0x00) || set_codec_parameter(p->chip, 0xff, 0x00)); snd_sbdsp_reset(p->chip); /* really! */ if (err) goto __fail; set_mode_register(p->chip, 0xc0); /* c0 = STOP */ set_mode_register(p->chip, 0x70); /* 70 = RUN */ } } result = 0; __fail: spin_unlock_irqrestore(&p->chip->reg_lock, flags); return result; } static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags) { int err; unsigned char *kbuf; kbuf = memdup_user(buf, size); if (IS_ERR(kbuf)) return PTR_ERR(kbuf); err = snd_sb_csp_load(p, kbuf, size, load_flags); kfree(kbuf); return err; } static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags) { static const char *const names[] = { "sb16/mulaw_main.csp", "sb16/alaw_main.csp", "sb16/ima_adpcm_init.csp", "sb16/ima_adpcm_playback.csp", "sb16/ima_adpcm_capture.csp", }; const struct firmware *program; BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT); program = p->csp_programs[index]; if (!program) { int err = request_firmware(&program, names[index], p->chip->card->dev); if (err < 0) return err; p->csp_programs[index] = program; } return snd_sb_csp_load(p, program->data, program->size, flags); } /* * autoload hardware codec if necessary * return 0 if CSP is loaded and ready to run (p->running != 0) */ static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode) { unsigned long flags; int err = 0; /* if CSP is running or manually loaded then exit */ if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED)) return -EBUSY; /* autoload microcode only if requested hardware codec is not already loaded */ if (((1U << (__force int)pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) { p->running = SNDRV_SB_CSP_ST_AUTO; } else { switch (pcm_sfmt) { case SNDRV_PCM_FORMAT_MU_LAW: err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0); p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; break; case SNDRV_PCM_FORMAT_A_LAW: err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0); p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; break; case SNDRV_PCM_FORMAT_IMA_ADPCM: err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT, SNDRV_SB_CSP_LOAD_INITBLOCK); if (err) break; if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) { err = snd_sb_csp_firmware_load (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0); p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE; } else { err = snd_sb_csp_firmware_load (p, CSP_PROGRAM_ADPCM_CAPTURE, 0); p->mode = SNDRV_SB_CSP_MODE_DSP_READ; } p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; break; default: /* Decouple CSP from IRQ and DMAREQ lines */ if (p->running & SNDRV_SB_CSP_ST_AUTO) { spin_lock_irqsave(&p->chip->reg_lock, flags); set_mode_register(p->chip, 0xfc); set_mode_register(p->chip, 0x00); spin_unlock_irqrestore(&p->chip->reg_lock, flags); p->running = 0; /* clear autoloaded flag */ } return -EINVAL; } if (err) { p->acc_format = 0; p->acc_channels = p->acc_width = p->acc_rates = 0; p->running = 0; /* clear autoloaded flag */ p->mode = 0; return (err); } else { p->running = SNDRV_SB_CSP_ST_AUTO; /* set autoloaded flag */ p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT; /* only 16 bit data */ p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO; p->acc_rates = SNDRV_SB_CSP_RATE_ALL; /* HW codecs accept all rates */ } } return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO; } /* * start CSP */ static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels) { unsigned char s_type; /* sample type */ unsigned char mixL, mixR; int result = -EIO; unsigned long flags; if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) { snd_printd("%s: Microcode not loaded\n", __func__); return -ENXIO; } if (p->running & SNDRV_SB_CSP_ST_RUNNING) { snd_printd("%s: CSP already running\n", __func__); return -EBUSY; } if (!(sample_width & p->acc_width)) { snd_printd("%s: Unsupported PCM sample width\n", __func__); return -EINVAL; } if (!(channels & p->acc_channels)) { snd_printd("%s: Invalid number of channels\n", __func__); return -EINVAL; } /* Mute PCM volume */ spin_lock_irqsave(&p->chip->mixer_lock, flags); mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV); mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1); snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7); snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7); spin_lock(&p->chip->reg_lock); set_mode_register(p->chip, 0xc0); /* c0 = STOP */ set_mode_register(p->chip, 0x70); /* 70 = RUN */ s_type = 0x00; if (channels == SNDRV_SB_CSP_MONO) s_type = 0x11; /* 000n 000n (n = 1 if mono) */ if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT) s_type |= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */ if (set_codec_parameter(p->chip, 0x81, s_type)) { snd_printd("%s: Set sample type command failed\n", __func__); goto __fail; } if (set_codec_parameter(p->chip, 0x80, 0x00)) { snd_printd("%s: Codec start command failed\n", __func__); goto __fail; } p->run_width = sample_width; p->run_channels = channels; p->running |= SNDRV_SB_CSP_ST_RUNNING; if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) { set_codec_parameter(p->chip, 0xe0, 0x01); /* enable QSound decoder */ set_codec_parameter(p->chip, 0x00, 0xff); set_codec_parameter(p->chip, 0x01, 0xff); p->running |= SNDRV_SB_CSP_ST_QSOUND; /* set QSound startup value */ snd_sb_csp_qsound_transfer(p); } result = 0; __fail: spin_unlock(&p->chip->reg_lock); /* restore PCM volume */ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL); snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR); spin_unlock_irqrestore(&p->chip->mixer_lock, flags); return result; } /* * stop CSP */ static int snd_sb_csp_stop(struct snd_sb_csp * p) { int result; unsigned char mixL, mixR; unsigned long flags; if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) return 0; /* Mute PCM volume */ spin_lock_irqsave(&p->chip->mixer_lock, flags); mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV); mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1); snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7); snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7); spin_lock(&p->chip->reg_lock); if (p->running & SNDRV_SB_CSP_ST_QSOUND) { set_codec_parameter(p->chip, 0xe0, 0x01); /* disable QSound decoder */ set_codec_parameter(p->chip, 0x00, 0x00); set_codec_parameter(p->chip, 0x01, 0x00); p->running &= ~SNDRV_SB_CSP_ST_QSOUND; } result = set_mode_register(p->chip, 0xc0); /* c0 = STOP */ spin_unlock(&p->chip->reg_lock); /* restore PCM volume */ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL); snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR); spin_unlock_irqrestore(&p->chip->mixer_lock, flags); if (!(result)) p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING); return result; } /* * pause CSP codec and hold DMA transfer */ static int snd_sb_csp_pause(struct snd_sb_csp * p) { int result; unsigned long flags; if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) return -EBUSY; spin_lock_irqsave(&p->chip->reg_lock, flags); result = set_codec_parameter(p->chip, 0x80, 0xff); spin_unlock_irqrestore(&p->chip->reg_lock, flags); if (!(result)) p->running |= SNDRV_SB_CSP_ST_PAUSED; return result; } /* * restart CSP codec and resume DMA transfer */ static int snd_sb_csp_restart(struct snd_sb_csp * p) { int result; unsigned long flags; if (!(p->running & SNDRV_SB_CSP_ST_PAUSED)) return -EBUSY; spin_lock_irqsave(&p->chip->reg_lock, flags); result = set_codec_parameter(p->chip, 0x80, 0x00); spin_unlock_irqrestore(&p->chip->reg_lock, flags); if (!(result)) p->running &= ~SNDRV_SB_CSP_ST_PAUSED; return result; } /* ------------------------------ */ /* * QSound mixer control for PCM */ #define snd_sb_qsound_switch_info snd_ctl_boolean_mono_info static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0; return 0; } static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); unsigned long flags; int change; unsigned char nval; nval = ucontrol->value.integer.value[0] & 0x01; spin_lock_irqsave(&p->q_lock, flags); change = p->q_enabled != nval; p->q_enabled = nval; spin_unlock_irqrestore(&p->q_lock, flags); return change; } static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 2; uinfo->value.integer.min = 0; uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; return 0; } static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); unsigned long flags; spin_lock_irqsave(&p->q_lock, flags); ucontrol->value.integer.value[0] = p->qpos_left; ucontrol->value.integer.value[1] = p->qpos_right; spin_unlock_irqrestore(&p->q_lock, flags); return 0; } static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); unsigned long flags; int change; unsigned char nval1, nval2; nval1 = ucontrol->value.integer.value[0]; if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; nval2 = ucontrol->value.integer.value[1]; if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; spin_lock_irqsave(&p->q_lock, flags); change = p->qpos_left != nval1 || p->qpos_right != nval2; p->qpos_left = nval1; p->qpos_right = nval2; p->qpos_changed = change; spin_unlock_irqrestore(&p->q_lock, flags); return change; } static const struct snd_kcontrol_new snd_sb_qsound_switch = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "3D Control - Switch", .info = snd_sb_qsound_switch_info, .get = snd_sb_qsound_switch_get, .put = snd_sb_qsound_switch_put }; static const struct snd_kcontrol_new snd_sb_qsound_space = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "3D Control - Space", .info = snd_sb_qsound_space_info, .get = snd_sb_qsound_space_get, .put = snd_sb_qsound_space_put }; static int snd_sb_qsound_build(struct snd_sb_csp * p) { struct snd_card *card; int err; if (snd_BUG_ON(!p)) return -EINVAL; card = p->chip->card; p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2; p->qpos_changed = 0; spin_lock_init(&p->q_lock); if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0) goto __error; if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0) goto __error; return 0; __error: snd_sb_qsound_destroy(p); return err; } static void snd_sb_qsound_destroy(struct snd_sb_csp * p) { struct snd_card *card; unsigned long flags; if (snd_BUG_ON(!p)) return; card = p->chip->card; down_write(&card->controls_rwsem); if (p->qsound_switch) snd_ctl_remove(card, p->qsound_switch); if (p->qsound_space) snd_ctl_remove(card, p->qsound_space); up_write(&card->controls_rwsem); /* cancel pending transfer of QSound parameters */ spin_lock_irqsave (&p->q_lock, flags); p->qpos_changed = 0; spin_unlock_irqrestore (&p->q_lock, flags); } /* * Transfer qsound parameters to CSP, * function should be called from interrupt routine */ static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p) { int err = -ENXIO; spin_lock(&p->q_lock); if (p->running & SNDRV_SB_CSP_ST_QSOUND) { set_codec_parameter(p->chip, 0xe0, 0x01); /* left channel */ set_codec_parameter(p->chip, 0x00, p->qpos_left); set_codec_parameter(p->chip, 0x02, 0x00); /* right channel */ set_codec_parameter(p->chip, 0x00, p->qpos_right); set_codec_parameter(p->chip, 0x03, 0x00); err = 0; } p->qpos_changed = 0; spin_unlock(&p->q_lock); return err; } /* ------------------------------ */ /* * proc interface */ static int init_proc_entry(struct snd_sb_csp * p, int device) { char name[16]; struct snd_info_entry *entry; sprintf(name, "cspD%d", device); if (! snd_card_proc_new(p->chip->card, name, &entry)) snd_info_set_text_ops(entry, p, info_read); return 0; } static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_sb_csp *p = entry->private_data; snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f)); snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'), ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'), ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'), ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-')); if (p->running & SNDRV_SB_CSP_ST_LOADED) { snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr); snd_iprintf(buffer, "Sample rates: "); if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) { snd_iprintf(buffer, "All\n"); } else { snd_iprintf(buffer, "%s%s%s%s\n", ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""), ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""), ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""), ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : "")); } if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { snd_iprintf(buffer, "QSound decoder %sabled\n", p->q_enabled ? "en" : "dis"); } else { snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n", p->acc_format, ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"), ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"), ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"), ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"), ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"), ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-")); } } if (p->running & SNDRV_SB_CSP_ST_AUTO) { snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n"); } if (p->running & SNDRV_SB_CSP_ST_RUNNING) { snd_iprintf(buffer, "Processing %dbit %s PCM samples\n", ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8), ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo")); } if (p->running & SNDRV_SB_CSP_ST_QSOUND) { snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n", p->qpos_left, p->qpos_right); } } /* */ EXPORT_SYMBOL(snd_sb_csp_new);
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