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1189 lines
32 KiB
1189 lines
32 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (c) 1999 by Uros Bizjak <[email protected]> |
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* Takashi Iwai <[email protected]> |
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* |
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* SB16ASP/AWE32 CSP control |
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* |
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* CSP microcode loader: |
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* alsa-tools/sb16_csp/ |
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*/ |
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#include <linux/delay.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <sound/core.h> |
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#include <sound/control.h> |
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#include <sound/info.h> |
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#include <sound/sb16_csp.h> |
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#include <sound/initval.h> |
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MODULE_AUTHOR("Uros Bizjak <[email protected]>"); |
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MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor"); |
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MODULE_LICENSE("GPL"); |
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MODULE_FIRMWARE("sb16/mulaw_main.csp"); |
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MODULE_FIRMWARE("sb16/alaw_main.csp"); |
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MODULE_FIRMWARE("sb16/ima_adpcm_init.csp"); |
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MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp"); |
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MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp"); |
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#ifdef SNDRV_LITTLE_ENDIAN |
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#define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24)) |
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#else |
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#define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24)) |
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#endif |
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#define RIFF_HEADER CSP_HDR_VALUE('R', 'I', 'F', 'F') |
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#define CSP__HEADER CSP_HDR_VALUE('C', 'S', 'P', ' ') |
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#define LIST_HEADER CSP_HDR_VALUE('L', 'I', 'S', 'T') |
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#define FUNC_HEADER CSP_HDR_VALUE('f', 'u', 'n', 'c') |
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#define CODE_HEADER CSP_HDR_VALUE('c', 'o', 'd', 'e') |
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#define INIT_HEADER CSP_HDR_VALUE('i', 'n', 'i', 't') |
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#define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n') |
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|
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/* |
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* RIFF data format |
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*/ |
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struct riff_header { |
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__le32 name; |
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__le32 len; |
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}; |
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struct desc_header { |
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struct riff_header info; |
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__le16 func_nr; |
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__le16 VOC_type; |
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__le16 flags_play_rec; |
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__le16 flags_16bit_8bit; |
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__le16 flags_stereo_mono; |
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__le16 flags_rates; |
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}; |
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/* |
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* prototypes |
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*/ |
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static void snd_sb_csp_free(struct snd_hwdep *hw); |
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static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file); |
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static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg); |
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static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file); |
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static int csp_detect(struct snd_sb *chip, int *version); |
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static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val); |
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static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val); |
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static int read_register(struct snd_sb *chip, unsigned char reg); |
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static int set_mode_register(struct snd_sb *chip, unsigned char mode); |
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static int get_version(struct snd_sb *chip); |
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static int snd_sb_csp_riff_load(struct snd_sb_csp * p, |
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struct snd_sb_csp_microcode __user * code); |
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static int snd_sb_csp_unload(struct snd_sb_csp * p); |
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static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags); |
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static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode); |
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static int snd_sb_csp_check_version(struct snd_sb_csp * p); |
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static int snd_sb_csp_use(struct snd_sb_csp * p); |
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static int snd_sb_csp_unuse(struct snd_sb_csp * p); |
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static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels); |
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static int snd_sb_csp_stop(struct snd_sb_csp * p); |
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static int snd_sb_csp_pause(struct snd_sb_csp * p); |
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static int snd_sb_csp_restart(struct snd_sb_csp * p); |
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static int snd_sb_qsound_build(struct snd_sb_csp * p); |
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static void snd_sb_qsound_destroy(struct snd_sb_csp * p); |
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static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p); |
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static int init_proc_entry(struct snd_sb_csp * p, int device); |
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static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer); |
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/* |
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* Detect CSP chip and create a new instance |
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*/ |
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int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep) |
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{ |
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struct snd_sb_csp *p; |
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int version; |
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int err; |
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struct snd_hwdep *hw; |
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if (rhwdep) |
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*rhwdep = NULL; |
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if (csp_detect(chip, &version)) |
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return -ENODEV; |
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err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw); |
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if (err < 0) |
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return err; |
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p = kzalloc(sizeof(*p), GFP_KERNEL); |
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if (!p) { |
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snd_device_free(chip->card, hw); |
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return -ENOMEM; |
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} |
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p->chip = chip; |
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p->version = version; |
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/* CSP operators */ |
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p->ops.csp_use = snd_sb_csp_use; |
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p->ops.csp_unuse = snd_sb_csp_unuse; |
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p->ops.csp_autoload = snd_sb_csp_autoload; |
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p->ops.csp_start = snd_sb_csp_start; |
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p->ops.csp_stop = snd_sb_csp_stop; |
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p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer; |
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mutex_init(&p->access_mutex); |
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sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f)); |
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hw->iface = SNDRV_HWDEP_IFACE_SB16CSP; |
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hw->private_data = p; |
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hw->private_free = snd_sb_csp_free; |
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/* operators - only write/ioctl */ |
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hw->ops.open = snd_sb_csp_open; |
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hw->ops.ioctl = snd_sb_csp_ioctl; |
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hw->ops.release = snd_sb_csp_release; |
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/* create a proc entry */ |
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init_proc_entry(p, device); |
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if (rhwdep) |
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*rhwdep = hw; |
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return 0; |
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} |
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/* |
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* free_private for hwdep instance |
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*/ |
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static void snd_sb_csp_free(struct snd_hwdep *hwdep) |
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{ |
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int i; |
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struct snd_sb_csp *p = hwdep->private_data; |
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if (p) { |
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if (p->running & SNDRV_SB_CSP_ST_RUNNING) |
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snd_sb_csp_stop(p); |
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for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i) |
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release_firmware(p->csp_programs[i]); |
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kfree(p); |
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} |
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} |
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/* ------------------------------ */ |
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/* |
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* open the device exclusively |
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*/ |
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static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file) |
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{ |
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struct snd_sb_csp *p = hw->private_data; |
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return (snd_sb_csp_use(p)); |
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} |
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/* |
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* ioctl for hwdep device: |
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*/ |
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static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg) |
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{ |
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struct snd_sb_csp *p = hw->private_data; |
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struct snd_sb_csp_info info; |
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struct snd_sb_csp_start start_info; |
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int err; |
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if (snd_BUG_ON(!p)) |
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return -EINVAL; |
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if (snd_sb_csp_check_version(p)) |
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return -ENODEV; |
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switch (cmd) { |
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/* get information */ |
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case SNDRV_SB_CSP_IOCTL_INFO: |
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memset(&info, 0, sizeof(info)); |
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*info.codec_name = *p->codec_name; |
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info.func_nr = p->func_nr; |
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info.acc_format = p->acc_format; |
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info.acc_channels = p->acc_channels; |
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info.acc_width = p->acc_width; |
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info.acc_rates = p->acc_rates; |
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info.csp_mode = p->mode; |
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info.run_channels = p->run_channels; |
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info.run_width = p->run_width; |
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info.version = p->version; |
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info.state = p->running; |
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if (copy_to_user((void __user *)arg, &info, sizeof(info))) |
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err = -EFAULT; |
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else |
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err = 0; |
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break; |
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/* load CSP microcode */ |
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case SNDRV_SB_CSP_IOCTL_LOAD_CODE: |
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err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? |
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-EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg)); |
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break; |
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case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE: |
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err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? |
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-EBUSY : snd_sb_csp_unload(p)); |
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break; |
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/* change CSP running state */ |
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case SNDRV_SB_CSP_IOCTL_START: |
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if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info))) |
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err = -EFAULT; |
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else |
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err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels); |
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break; |
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case SNDRV_SB_CSP_IOCTL_STOP: |
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err = snd_sb_csp_stop(p); |
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break; |
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case SNDRV_SB_CSP_IOCTL_PAUSE: |
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err = snd_sb_csp_pause(p); |
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break; |
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case SNDRV_SB_CSP_IOCTL_RESTART: |
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err = snd_sb_csp_restart(p); |
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break; |
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default: |
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err = -ENOTTY; |
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break; |
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} |
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return err; |
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} |
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/* |
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* close the device |
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*/ |
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static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file) |
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{ |
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struct snd_sb_csp *p = hw->private_data; |
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return (snd_sb_csp_unuse(p)); |
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} |
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/* ------------------------------ */ |
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/* |
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* acquire device |
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*/ |
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static int snd_sb_csp_use(struct snd_sb_csp * p) |
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{ |
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mutex_lock(&p->access_mutex); |
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if (p->used) { |
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mutex_unlock(&p->access_mutex); |
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return -EAGAIN; |
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} |
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p->used++; |
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mutex_unlock(&p->access_mutex); |
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return 0; |
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} |
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/* |
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* release device |
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*/ |
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static int snd_sb_csp_unuse(struct snd_sb_csp * p) |
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{ |
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mutex_lock(&p->access_mutex); |
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p->used--; |
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mutex_unlock(&p->access_mutex); |
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return 0; |
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} |
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/* |
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* load microcode via ioctl: |
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* code is user-space pointer |
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*/ |
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static int snd_sb_csp_riff_load(struct snd_sb_csp * p, |
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struct snd_sb_csp_microcode __user * mcode) |
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{ |
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struct snd_sb_csp_mc_header info; |
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unsigned char __user *data_ptr; |
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unsigned char __user *data_end; |
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unsigned short func_nr = 0; |
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struct riff_header file_h, item_h, code_h; |
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__le32 item_type; |
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struct desc_header funcdesc_h; |
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unsigned long flags; |
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int err; |
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if (copy_from_user(&info, mcode, sizeof(info))) |
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return -EFAULT; |
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data_ptr = mcode->data; |
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if (copy_from_user(&file_h, data_ptr, sizeof(file_h))) |
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return -EFAULT; |
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if ((le32_to_cpu(file_h.name) != RIFF_HEADER) || |
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(le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) { |
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snd_printd("%s: Invalid RIFF header\n", __func__); |
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return -EINVAL; |
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} |
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data_ptr += sizeof(file_h); |
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data_end = data_ptr + le32_to_cpu(file_h.len); |
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if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) |
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return -EFAULT; |
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if (le32_to_cpu(item_type) != CSP__HEADER) { |
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snd_printd("%s: Invalid RIFF file type\n", __func__); |
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return -EINVAL; |
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} |
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data_ptr += sizeof (item_type); |
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for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) { |
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if (copy_from_user(&item_h, data_ptr, sizeof(item_h))) |
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return -EFAULT; |
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data_ptr += sizeof(item_h); |
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if (le32_to_cpu(item_h.name) != LIST_HEADER) |
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continue; |
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if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) |
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return -EFAULT; |
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switch (le32_to_cpu(item_type)) { |
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case FUNC_HEADER: |
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if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h))) |
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return -EFAULT; |
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func_nr = le16_to_cpu(funcdesc_h.func_nr); |
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break; |
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case CODE_HEADER: |
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if (func_nr != info.func_req) |
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break; /* not required function, try next */ |
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data_ptr += sizeof(item_type); |
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/* destroy QSound mixer element */ |
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if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { |
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snd_sb_qsound_destroy(p); |
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} |
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/* Clear all flags */ |
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p->running = 0; |
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p->mode = 0; |
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/* load microcode blocks */ |
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for (;;) { |
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if (data_ptr >= data_end) |
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return -EINVAL; |
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if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) |
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return -EFAULT; |
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/* init microcode blocks */ |
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if (le32_to_cpu(code_h.name) != INIT_HEADER) |
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break; |
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data_ptr += sizeof(code_h); |
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err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len), |
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SNDRV_SB_CSP_LOAD_INITBLOCK); |
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if (err) |
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return err; |
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data_ptr += le32_to_cpu(code_h.len); |
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} |
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/* main microcode block */ |
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if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) |
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return -EFAULT; |
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if (le32_to_cpu(code_h.name) != MAIN_HEADER) { |
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snd_printd("%s: Missing 'main' microcode\n", __func__); |
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return -EINVAL; |
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} |
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data_ptr += sizeof(code_h); |
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err = snd_sb_csp_load_user(p, data_ptr, |
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le32_to_cpu(code_h.len), 0); |
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if (err) |
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return err; |
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/* fill in codec header */ |
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strscpy(p->codec_name, info.codec_name, sizeof(p->codec_name)); |
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p->func_nr = func_nr; |
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p->mode = le16_to_cpu(funcdesc_h.flags_play_rec); |
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switch (le16_to_cpu(funcdesc_h.VOC_type)) { |
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case 0x0001: /* QSound decoder */ |
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if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) { |
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if (snd_sb_qsound_build(p) == 0) |
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/* set QSound flag and clear all other mode flags */ |
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p->mode = SNDRV_SB_CSP_MODE_QSOUND; |
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} |
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p->acc_format = 0; |
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break; |
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case 0x0006: /* A Law codec */ |
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p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; |
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break; |
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case 0x0007: /* Mu Law codec */ |
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p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; |
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break; |
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case 0x0011: /* what Creative thinks is IMA ADPCM codec */ |
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case 0x0200: /* Creative ADPCM codec */ |
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p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; |
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break; |
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case 201: /* Text 2 Speech decoder */ |
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/* TODO: Text2Speech handling routines */ |
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p->acc_format = 0; |
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break; |
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case 0x0202: /* Fast Speech 8 codec */ |
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case 0x0203: /* Fast Speech 10 codec */ |
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p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL; |
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break; |
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default: /* other codecs are unsupported */ |
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p->acc_format = p->acc_width = p->acc_rates = 0; |
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p->mode = 0; |
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snd_printd("%s: Unsupported CSP codec type: 0x%04x\n", |
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__func__, |
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le16_to_cpu(funcdesc_h.VOC_type)); |
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return -EINVAL; |
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} |
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p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono); |
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p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit); |
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p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates); |
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|
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/* Decouple CSP from IRQ and DMAREQ lines */ |
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spin_lock_irqsave(&p->chip->reg_lock, flags); |
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set_mode_register(p->chip, 0xfc); |
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set_mode_register(p->chip, 0x00); |
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spin_unlock_irqrestore(&p->chip->reg_lock, flags); |
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|
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/* finished loading successfully */ |
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p->running = SNDRV_SB_CSP_ST_LOADED; /* set LOADED flag */ |
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return 0; |
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} |
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} |
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snd_printd("%s: Function #%d not found\n", __func__, info.func_req); |
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return -EINVAL; |
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} |
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|
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/* |
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* unload CSP microcode |
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*/ |
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static int snd_sb_csp_unload(struct snd_sb_csp * p) |
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{ |
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if (p->running & SNDRV_SB_CSP_ST_RUNNING) |
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return -EBUSY; |
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if (!(p->running & SNDRV_SB_CSP_ST_LOADED)) |
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return -ENXIO; |
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|
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/* clear supported formats */ |
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p->acc_format = 0; |
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p->acc_channels = p->acc_width = p->acc_rates = 0; |
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/* destroy QSound mixer element */ |
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if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { |
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snd_sb_qsound_destroy(p); |
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} |
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/* clear all flags */ |
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p->running = 0; |
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p->mode = 0; |
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return 0; |
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} |
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|
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/* |
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* send command sequence to DSP |
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*/ |
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static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size) |
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{ |
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int i; |
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for (i = 0; i < size; i++) { |
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if (!snd_sbdsp_command(chip, seq[i])) |
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return -EIO; |
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} |
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return 0; |
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} |
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|
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/* |
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* set CSP codec parameter |
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*/ |
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static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val) |
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{ |
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unsigned char dsp_cmd[3]; |
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|
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dsp_cmd[0] = 0x05; /* CSP set codec parameter */ |
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dsp_cmd[1] = val; /* Parameter value */ |
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dsp_cmd[2] = par; /* Parameter */ |
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command_seq(chip, dsp_cmd, 3); |
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snd_sbdsp_command(chip, 0x03); /* DSP read? */ |
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if (snd_sbdsp_get_byte(chip) != par) |
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return -EIO; |
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return 0; |
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} |
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|
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/* |
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* set CSP register |
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*/ |
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static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val) |
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{ |
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unsigned char dsp_cmd[3]; |
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|
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dsp_cmd[0] = 0x0e; /* CSP set register */ |
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dsp_cmd[1] = reg; /* CSP Register */ |
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dsp_cmd[2] = val; /* value */ |
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return command_seq(chip, dsp_cmd, 3); |
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} |
|
|
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/* |
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* read CSP register |
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* return < 0 -> error |
|
*/ |
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static int read_register(struct snd_sb *chip, unsigned char reg) |
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{ |
|
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_unlock_irqrestore(&p->chip->mixer_lock, flags); |
|
|
|
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 */ |
|
spin_lock_irqsave(&p->chip->mixer_lock, flags); |
|
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_unlock_irqrestore(&p->chip->mixer_lock, flags); |
|
|
|
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 */ |
|
spin_lock_irqsave(&p->chip->mixer_lock, flags); |
|
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; |
|
struct snd_kcontrol *kctl; |
|
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); |
|
|
|
kctl = snd_ctl_new1(&snd_sb_qsound_switch, p); |
|
err = snd_ctl_add(card, kctl); |
|
if (err < 0) |
|
goto __error; |
|
p->qsound_switch = kctl; |
|
kctl = snd_ctl_new1(&snd_sb_qsound_space, p); |
|
err = snd_ctl_add(card, kctl); |
|
if (err < 0) |
|
goto __error; |
|
p->qsound_space = kctl; |
|
|
|
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); |
|
p->qsound_switch = NULL; |
|
} |
|
if (p->qsound_space) { |
|
snd_ctl_remove(card, p->qsound_space); |
|
p->qsound_space = NULL; |
|
} |
|
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]; |
|
|
|
sprintf(name, "cspD%d", device); |
|
snd_card_ro_proc_new(p->chip->card, name, 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);
|
|
|