1 #ifndef __SOUND_SB16_CSP_H 2 #define __SOUND_SB16_CSP_H 3 4 /* 5 * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> 6 * Takashi Iwai <tiwai@suse.de> 7 * 8 * SB16ASP/AWE32 CSP control 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 * 24 */ 25 26 /* CSP modes */ 27 #define SNDRV_SB_CSP_MODE_NONE 0x00 28 #define SNDRV_SB_CSP_MODE_DSP_READ 0x01 /* Record from DSP */ 29 #define SNDRV_SB_CSP_MODE_DSP_WRITE 0x02 /* Play to DSP */ 30 #define SNDRV_SB_CSP_MODE_QSOUND 0x04 /* QSound */ 31 32 /* CSP load flags */ 33 #define SNDRV_SB_CSP_LOAD_FROMUSER 0x01 34 #define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02 35 36 /* CSP sample width */ 37 #define SNDRV_SB_CSP_SAMPLE_8BIT 0x01 38 #define SNDRV_SB_CSP_SAMPLE_16BIT 0x02 39 40 /* CSP channels */ 41 #define SNDRV_SB_CSP_MONO 0x01 42 #define SNDRV_SB_CSP_STEREO 0x02 43 44 /* CSP rates */ 45 #define SNDRV_SB_CSP_RATE_8000 0x01 46 #define SNDRV_SB_CSP_RATE_11025 0x02 47 #define SNDRV_SB_CSP_RATE_22050 0x04 48 #define SNDRV_SB_CSP_RATE_44100 0x08 49 #define SNDRV_SB_CSP_RATE_ALL 0x0f 50 51 /* CSP running state */ 52 #define SNDRV_SB_CSP_ST_IDLE 0x00 53 #define SNDRV_SB_CSP_ST_LOADED 0x01 54 #define SNDRV_SB_CSP_ST_RUNNING 0x02 55 #define SNDRV_SB_CSP_ST_PAUSED 0x04 56 #define SNDRV_SB_CSP_ST_AUTO 0x08 57 #define SNDRV_SB_CSP_ST_QSOUND 0x10 58 59 /* maximum QSound value (180 degrees right) */ 60 #define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20 61 62 /* maximum microcode RIFF file size */ 63 #define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000 64 65 /* microcode header */ 66 struct snd_sb_csp_mc_header { 67 char codec_name[16]; /* id name of codec */ 68 unsigned short func_req; /* requested function */ 69 }; 70 71 /* microcode to be loaded */ 72 struct snd_sb_csp_microcode { 73 struct snd_sb_csp_mc_header info; 74 unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE]; 75 }; 76 77 /* start CSP with sample_width in mono/stereo */ 78 struct snd_sb_csp_start { 79 int sample_width; /* sample width, look above */ 80 int channels; /* channels, look above */ 81 }; 82 83 /* CSP information */ 84 struct snd_sb_csp_info { 85 char codec_name[16]; /* id name of codec */ 86 unsigned short func_nr; /* function number */ 87 unsigned int acc_format; /* accepted PCM formats */ 88 unsigned short acc_channels; /* accepted channels */ 89 unsigned short acc_width; /* accepted sample width */ 90 unsigned short acc_rates; /* accepted sample rates */ 91 unsigned short csp_mode; /* CSP mode, see above */ 92 unsigned short run_channels; /* current channels */ 93 unsigned short run_width; /* current sample width */ 94 unsigned short version; /* version id: 0x10 - 0x1f */ 95 unsigned short state; /* state bits */ 96 }; 97 98 /* HWDEP controls */ 99 /* get CSP information */ 100 #define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, struct snd_sb_csp_info) 101 /* load microcode to CSP */ 102 /* NOTE: struct snd_sb_csp_microcode overflows the max size (13 bits) 103 * defined for some architectures like MIPS, and it leads to build errors. 104 * (x86 and co have 14-bit size, thus it's valid, though.) 105 * As a workaround for skipping the size-limit check, here we don't use the 106 * normal _IOW() macro but _IOC() with the manual argument. 107 */ 108 #define SNDRV_SB_CSP_IOCTL_LOAD_CODE \ 109 _IOC(_IOC_WRITE, 'H', 0x11, sizeof(struct snd_sb_csp_microcode)) 110 /* unload microcode from CSP */ 111 #define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12) 112 /* start CSP */ 113 #define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start) 114 /* stop CSP */ 115 #define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14) 116 /* pause CSP and DMA transfer */ 117 #define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15) 118 /* restart CSP and DMA transfer */ 119 #define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16) 120 121 #ifdef __KERNEL__ 122 #include "sb.h" 123 #include "hwdep.h" 124 #include <linux/firmware.h> 125 126 struct snd_sb_csp; 127 128 /* indices for the known CSP programs */ 129 enum { 130 CSP_PROGRAM_MULAW, 131 CSP_PROGRAM_ALAW, 132 CSP_PROGRAM_ADPCM_INIT, 133 CSP_PROGRAM_ADPCM_PLAYBACK, 134 CSP_PROGRAM_ADPCM_CAPTURE, 135 136 CSP_PROGRAM_COUNT 137 }; 138 139 /* 140 * CSP operators 141 */ 142 struct snd_sb_csp_ops { 143 int (*csp_use) (struct snd_sb_csp * p); 144 int (*csp_unuse) (struct snd_sb_csp * p); 145 int (*csp_autoload) (struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode); 146 int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels); 147 int (*csp_stop) (struct snd_sb_csp * p); 148 int (*csp_qsound_transfer) (struct snd_sb_csp * p); 149 }; 150 151 /* 152 * CSP private data 153 */ 154 struct snd_sb_csp { 155 struct snd_sb *chip; /* SB16 DSP */ 156 int used; /* usage flag - exclusive */ 157 char codec_name[16]; /* name of codec */ 158 unsigned short func_nr; /* function number */ 159 unsigned int acc_format; /* accepted PCM formats */ 160 int acc_channels; /* accepted channels */ 161 int acc_width; /* accepted sample width */ 162 int acc_rates; /* accepted sample rates */ 163 int mode; /* MODE */ 164 int run_channels; /* current CSP channels */ 165 int run_width; /* current sample width */ 166 int version; /* CSP version (0x10 - 0x1f) */ 167 int running; /* running state */ 168 169 struct snd_sb_csp_ops ops; /* operators */ 170 171 spinlock_t q_lock; /* locking */ 172 int q_enabled; /* enabled flag */ 173 int qpos_left; /* left position */ 174 int qpos_right; /* right position */ 175 int qpos_changed; /* position changed flag */ 176 177 struct snd_kcontrol *qsound_switch; 178 struct snd_kcontrol *qsound_space; 179 180 struct mutex access_mutex; /* locking */ 181 182 const struct firmware *csp_programs[CSP_PROGRAM_COUNT]; 183 }; 184 185 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep); 186 #endif 187 188 #endif /* __SOUND_SB16_CSP */ 189