Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Routines for control of the CS8427 via i2c bus |
| 3 | * IEC958 (S/PDIF) receiver & transmitter by Cirrus Logic |
| 4 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz> |
| 5 | * |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <sound/driver.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/delay.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <sound/core.h> |
| 28 | #include <sound/control.h> |
| 29 | #include <sound/pcm.h> |
| 30 | #include <sound/cs8427.h> |
| 31 | #include <sound/asoundef.h> |
| 32 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 33 | static void snd_cs8427_reset(struct snd_i2c_device *cs8427); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
| 35 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| 36 | MODULE_DESCRIPTION("IEC958 (S/PDIF) receiver & transmitter by Cirrus Logic"); |
| 37 | MODULE_LICENSE("GPL"); |
| 38 | |
| 39 | #define CS8427_ADDR (0x20>>1) /* fixed address */ |
| 40 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 41 | struct cs8427_stream { |
| 42 | struct snd_pcm_substream *substream; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | char hw_status[24]; /* hardware status */ |
| 44 | char def_status[24]; /* default status */ |
| 45 | char pcm_status[24]; /* PCM private status */ |
| 46 | char hw_udata[32]; |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 47 | struct snd_kcontrol *pcm_ctl; |
| 48 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 50 | struct cs8427 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | unsigned char regmap[0x14]; /* map of first 1 + 13 registers */ |
| 52 | unsigned int rate; |
| 53 | unsigned int reset_timeout; |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 54 | struct cs8427_stream playback; |
| 55 | struct cs8427_stream capture; |
| 56 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
| 58 | static unsigned char swapbits(unsigned char val) |
| 59 | { |
| 60 | int bit; |
| 61 | unsigned char res = 0; |
| 62 | for (bit = 0; bit < 8; bit++) { |
| 63 | res <<= 1; |
| 64 | res |= val & 1; |
| 65 | val >>= 1; |
| 66 | } |
| 67 | return res; |
| 68 | } |
| 69 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 70 | int snd_cs8427_reg_write(struct snd_i2c_device *device, unsigned char reg, |
| 71 | unsigned char val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | { |
| 73 | int err; |
| 74 | unsigned char buf[2]; |
| 75 | |
| 76 | buf[0] = reg & 0x7f; |
| 77 | buf[1] = val; |
| 78 | if ((err = snd_i2c_sendbytes(device, buf, 2)) != 2) { |
Takashi Iwai | 99b359b | 2005-10-20 18:26:44 +0200 | [diff] [blame] | 79 | snd_printk(KERN_ERR "unable to send bytes 0x%02x:0x%02x to CS8427 (%i)\n", buf[0], buf[1], err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | return err < 0 ? err : -EIO; |
| 81 | } |
| 82 | return 0; |
| 83 | } |
| 84 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 85 | static int snd_cs8427_reg_read(struct snd_i2c_device *device, unsigned char reg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | { |
| 87 | int err; |
| 88 | unsigned char buf; |
| 89 | |
| 90 | if ((err = snd_i2c_sendbytes(device, ®, 1)) != 1) { |
Takashi Iwai | 99b359b | 2005-10-20 18:26:44 +0200 | [diff] [blame] | 91 | snd_printk(KERN_ERR "unable to send register 0x%x byte to CS8427\n", reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | return err < 0 ? err : -EIO; |
| 93 | } |
| 94 | if ((err = snd_i2c_readbytes(device, &buf, 1)) != 1) { |
Takashi Iwai | 99b359b | 2005-10-20 18:26:44 +0200 | [diff] [blame] | 95 | snd_printk(KERN_ERR "unable to read register 0x%x byte from CS8427\n", reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | return err < 0 ? err : -EIO; |
| 97 | } |
| 98 | return buf; |
| 99 | } |
| 100 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 101 | static int snd_cs8427_select_corudata(struct snd_i2c_device *device, int udata) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 103 | struct cs8427 *chip = device->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | int err; |
| 105 | |
| 106 | udata = udata ? CS8427_BSEL : 0; |
| 107 | if (udata != (chip->regmap[CS8427_REG_CSDATABUF] & udata)) { |
| 108 | chip->regmap[CS8427_REG_CSDATABUF] &= ~CS8427_BSEL; |
| 109 | chip->regmap[CS8427_REG_CSDATABUF] |= udata; |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 110 | err = snd_cs8427_reg_write(device, CS8427_REG_CSDATABUF, |
| 111 | chip->regmap[CS8427_REG_CSDATABUF]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | if (err < 0) |
| 113 | return err; |
| 114 | } |
| 115 | return 0; |
| 116 | } |
| 117 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 118 | static int snd_cs8427_send_corudata(struct snd_i2c_device *device, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | int udata, |
| 120 | unsigned char *ndata, |
| 121 | int count) |
| 122 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 123 | struct cs8427 *chip = device->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | char *hw_data = udata ? chip->playback.hw_udata : chip->playback.hw_status; |
| 125 | char data[32]; |
| 126 | int err, idx; |
| 127 | |
| 128 | if (!memcmp(hw_data, ndata, count)) |
| 129 | return 0; |
| 130 | if ((err = snd_cs8427_select_corudata(device, udata)) < 0) |
| 131 | return err; |
| 132 | memcpy(hw_data, ndata, count); |
| 133 | if (udata) { |
| 134 | memset(data, 0, sizeof(data)); |
| 135 | if (memcmp(hw_data, data, count) == 0) { |
| 136 | chip->regmap[CS8427_REG_UDATABUF] &= ~CS8427_UBMMASK; |
| 137 | chip->regmap[CS8427_REG_UDATABUF] |= CS8427_UBMZEROS | CS8427_EFTUI; |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 138 | if ((err = snd_cs8427_reg_write(device, CS8427_REG_UDATABUF, |
| 139 | chip->regmap[CS8427_REG_UDATABUF])) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | return err; |
| 141 | return 0; |
| 142 | } |
| 143 | } |
| 144 | data[0] = CS8427_REG_AUTOINC | CS8427_REG_CORU_DATABUF; |
| 145 | for (idx = 0; idx < count; idx++) |
| 146 | data[idx + 1] = swapbits(ndata[idx]); |
| 147 | if (snd_i2c_sendbytes(device, data, count + 1) != count + 1) |
| 148 | return -EIO; |
| 149 | return 1; |
| 150 | } |
| 151 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 152 | static void snd_cs8427_free(struct snd_i2c_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | { |
| 154 | kfree(device->private_data); |
| 155 | } |
| 156 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 157 | int snd_cs8427_create(struct snd_i2c_bus *bus, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | unsigned char addr, |
| 159 | unsigned int reset_timeout, |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 160 | struct snd_i2c_device **r_cs8427) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | { |
| 162 | static unsigned char initvals1[] = { |
| 163 | CS8427_REG_CONTROL1 | CS8427_REG_AUTOINC, |
| 164 | /* CS8427_REG_CONTROL1: RMCK to OMCK, valid PCM audio, disable mutes, TCBL=output */ |
| 165 | CS8427_SWCLK | CS8427_TCBLDIR, |
| 166 | /* CS8427_REG_CONTROL2: hold last valid audio sample, RMCK=256*Fs, normal stereo operation */ |
| 167 | 0x00, |
| 168 | /* CS8427_REG_DATAFLOW: output drivers normal operation, Tx<=serial, Rx=>serial */ |
| 169 | CS8427_TXDSERIAL | CS8427_SPDAES3RECEIVER, |
| 170 | /* CS8427_REG_CLOCKSOURCE: Run off, CMCK=256*Fs, output time base = OMCK, input time base = |
| 171 | recovered input clock, recovered input clock source is ILRCK changed to AES3INPUT (workaround, see snd_cs8427_reset) */ |
| 172 | CS8427_RXDILRCK, |
| 173 | /* CS8427_REG_SERIALINPUT: Serial audio input port data format = I2S, 24-bit, 64*Fsi */ |
| 174 | CS8427_SIDEL | CS8427_SILRPOL, |
| 175 | /* CS8427_REG_SERIALOUTPUT: Serial audio output port data format = I2S, 24-bit, 64*Fsi */ |
| 176 | CS8427_SODEL | CS8427_SOLRPOL, |
| 177 | }; |
| 178 | static unsigned char initvals2[] = { |
| 179 | CS8427_REG_RECVERRMASK | CS8427_REG_AUTOINC, |
| 180 | /* CS8427_REG_RECVERRMASK: unmask the input PLL clock, V, confidence, biphase, parity status bits */ |
| 181 | /* CS8427_UNLOCK | CS8427_V | CS8427_CONF | CS8427_BIP | CS8427_PAR, */ |
| 182 | 0xff, /* set everything */ |
| 183 | /* CS8427_REG_CSDATABUF: |
| 184 | Registers 32-55 window to CS buffer |
| 185 | Inhibit D->E transfers from overwriting first 5 bytes of CS data. |
| 186 | Inhibit D->E transfers (all) of CS data. |
| 187 | Allow E->F transfer of CS data. |
| 188 | One byte mode; both A/B channels get same written CB data. |
| 189 | A channel info is output to chip's EMPH* pin. */ |
| 190 | CS8427_CBMR | CS8427_DETCI, |
| 191 | /* CS8427_REG_UDATABUF: |
| 192 | Use internal buffer to transmit User (U) data. |
| 193 | Chip's U pin is an output. |
| 194 | Transmit all O's for user data. |
| 195 | Inhibit D->E transfers. |
| 196 | Inhibit E->F transfers. */ |
| 197 | CS8427_UD | CS8427_EFTUI | CS8427_DETUI, |
| 198 | }; |
| 199 | int err; |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 200 | struct cs8427 *chip; |
| 201 | struct snd_i2c_device *device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | unsigned char buf[24]; |
| 203 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 204 | if ((err = snd_i2c_device_create(bus, "CS8427", CS8427_ADDR | (addr & 7), |
| 205 | &device)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | return err; |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 207 | chip = device->private_data = kzalloc(sizeof(*chip), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | if (chip == NULL) { |
| 209 | snd_i2c_device_free(device); |
| 210 | return -ENOMEM; |
| 211 | } |
| 212 | device->private_free = snd_cs8427_free; |
| 213 | |
| 214 | snd_i2c_lock(bus); |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 215 | if ((err = snd_cs8427_reg_read(device, CS8427_REG_ID_AND_VER)) != |
| 216 | CS8427_VER8427A) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | snd_i2c_unlock(bus); |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 218 | snd_printk(KERN_ERR "unable to find CS8427 signature " |
| 219 | "(expected 0x%x, read 0x%x),\n", |
| 220 | CS8427_VER8427A, err); |
| 221 | snd_printk(KERN_ERR " initialization is not completed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | return -EFAULT; |
| 223 | } |
| 224 | /* turn off run bit while making changes to configuration */ |
| 225 | if ((err = snd_cs8427_reg_write(device, CS8427_REG_CLOCKSOURCE, 0x00)) < 0) |
| 226 | goto __fail; |
| 227 | /* send initial values */ |
| 228 | memcpy(chip->regmap + (initvals1[0] & 0x7f), initvals1 + 1, 6); |
| 229 | if ((err = snd_i2c_sendbytes(device, initvals1, 7)) != 7) { |
| 230 | err = err < 0 ? err : -EIO; |
| 231 | goto __fail; |
| 232 | } |
| 233 | /* Turn off CS8427 interrupt stuff that is not used in hardware */ |
| 234 | memset(buf, 0, 7); |
| 235 | /* from address 9 to 15 */ |
| 236 | buf[0] = 9; /* register */ |
| 237 | if ((err = snd_i2c_sendbytes(device, buf, 7)) != 7) |
| 238 | goto __fail; |
| 239 | /* send transfer initialization sequence */ |
| 240 | memcpy(chip->regmap + (initvals2[0] & 0x7f), initvals2 + 1, 3); |
| 241 | if ((err = snd_i2c_sendbytes(device, initvals2, 4)) != 4) { |
| 242 | err = err < 0 ? err : -EIO; |
| 243 | goto __fail; |
| 244 | } |
| 245 | /* write default channel status bytes */ |
| 246 | buf[0] = ((unsigned char)(SNDRV_PCM_DEFAULT_CON_SPDIF >> 0)); |
| 247 | buf[1] = ((unsigned char)(SNDRV_PCM_DEFAULT_CON_SPDIF >> 8)); |
| 248 | buf[2] = ((unsigned char)(SNDRV_PCM_DEFAULT_CON_SPDIF >> 16)); |
| 249 | buf[3] = ((unsigned char)(SNDRV_PCM_DEFAULT_CON_SPDIF >> 24)); |
| 250 | memset(buf + 4, 0, 24 - 4); |
| 251 | if (snd_cs8427_send_corudata(device, 0, buf, 24) < 0) |
| 252 | goto __fail; |
| 253 | memcpy(chip->playback.def_status, buf, 24); |
| 254 | memcpy(chip->playback.pcm_status, buf, 24); |
| 255 | snd_i2c_unlock(bus); |
| 256 | |
| 257 | /* turn on run bit and rock'n'roll */ |
| 258 | if (reset_timeout < 1) |
| 259 | reset_timeout = 1; |
| 260 | chip->reset_timeout = reset_timeout; |
| 261 | snd_cs8427_reset(device); |
| 262 | |
| 263 | #if 0 // it's nice for read tests |
| 264 | { |
| 265 | char buf[128]; |
| 266 | int xx; |
| 267 | buf[0] = 0x81; |
| 268 | snd_i2c_sendbytes(device, buf, 1); |
| 269 | snd_i2c_readbytes(device, buf, 127); |
| 270 | for (xx = 0; xx < 127; xx++) |
Takashi Iwai | 99b359b | 2005-10-20 18:26:44 +0200 | [diff] [blame] | 271 | printk(KERN_DEBUG "reg[0x%x] = 0x%x\n", xx+1, buf[xx]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | } |
| 273 | #endif |
| 274 | |
| 275 | if (r_cs8427) |
| 276 | *r_cs8427 = device; |
| 277 | return 0; |
| 278 | |
| 279 | __fail: |
| 280 | snd_i2c_unlock(bus); |
| 281 | snd_i2c_device_free(device); |
| 282 | return err < 0 ? err : -EIO; |
| 283 | } |
| 284 | |
| 285 | /* |
| 286 | * Reset the chip using run bit, also lock PLL using ILRCK and |
| 287 | * put back AES3INPUT. This workaround is described in latest |
| 288 | * CS8427 datasheet, otherwise TXDSERIAL will not work. |
| 289 | */ |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 290 | static void snd_cs8427_reset(struct snd_i2c_device *cs8427) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 292 | struct cs8427 *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | unsigned long end_time; |
| 294 | int data; |
| 295 | |
| 296 | snd_assert(cs8427, return); |
| 297 | chip = cs8427->private_data; |
| 298 | snd_i2c_lock(cs8427->bus); |
| 299 | chip->regmap[CS8427_REG_CLOCKSOURCE] &= ~(CS8427_RUN | CS8427_RXDMASK); |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 300 | snd_cs8427_reg_write(cs8427, CS8427_REG_CLOCKSOURCE, |
| 301 | chip->regmap[CS8427_REG_CLOCKSOURCE]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | udelay(200); |
| 303 | chip->regmap[CS8427_REG_CLOCKSOURCE] |= CS8427_RUN | CS8427_RXDILRCK; |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 304 | snd_cs8427_reg_write(cs8427, CS8427_REG_CLOCKSOURCE, |
| 305 | chip->regmap[CS8427_REG_CLOCKSOURCE]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | udelay(200); |
| 307 | snd_i2c_unlock(cs8427->bus); |
| 308 | end_time = jiffies + chip->reset_timeout; |
| 309 | while (time_after_eq(end_time, jiffies)) { |
| 310 | snd_i2c_lock(cs8427->bus); |
| 311 | data = snd_cs8427_reg_read(cs8427, CS8427_REG_RECVERRORS); |
| 312 | snd_i2c_unlock(cs8427->bus); |
| 313 | if (!(data & CS8427_UNLOCK)) |
| 314 | break; |
Nishanth Aravamudan | 8433a50 | 2005-10-24 15:02:37 +0200 | [diff] [blame] | 315 | schedule_timeout_uninterruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | } |
| 317 | snd_i2c_lock(cs8427->bus); |
| 318 | chip->regmap[CS8427_REG_CLOCKSOURCE] &= ~CS8427_RXDMASK; |
| 319 | chip->regmap[CS8427_REG_CLOCKSOURCE] |= CS8427_RXDAES3INPUT; |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 320 | snd_cs8427_reg_write(cs8427, CS8427_REG_CLOCKSOURCE, |
| 321 | chip->regmap[CS8427_REG_CLOCKSOURCE]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | snd_i2c_unlock(cs8427->bus); |
| 323 | } |
| 324 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 325 | static int snd_cs8427_in_status_info(struct snd_kcontrol *kcontrol, |
| 326 | struct snd_ctl_elem_info *uinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | { |
| 328 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 329 | uinfo->count = 1; |
| 330 | uinfo->value.integer.min = 0; |
| 331 | uinfo->value.integer.max = 255; |
| 332 | return 0; |
| 333 | } |
| 334 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 335 | static int snd_cs8427_in_status_get(struct snd_kcontrol *kcontrol, |
| 336 | struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 338 | struct snd_i2c_device *device = snd_kcontrol_chip(kcontrol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | int data; |
| 340 | |
| 341 | snd_i2c_lock(device->bus); |
| 342 | data = snd_cs8427_reg_read(device, kcontrol->private_value); |
| 343 | snd_i2c_unlock(device->bus); |
| 344 | if (data < 0) |
| 345 | return data; |
| 346 | ucontrol->value.integer.value[0] = data; |
| 347 | return 0; |
| 348 | } |
| 349 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 350 | static int snd_cs8427_qsubcode_info(struct snd_kcontrol *kcontrol, |
| 351 | struct snd_ctl_elem_info *uinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | { |
| 353 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; |
| 354 | uinfo->count = 10; |
| 355 | return 0; |
| 356 | } |
| 357 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 358 | static int snd_cs8427_qsubcode_get(struct snd_kcontrol *kcontrol, |
| 359 | struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 361 | struct snd_i2c_device *device = snd_kcontrol_chip(kcontrol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | unsigned char reg = CS8427_REG_QSUBCODE; |
| 363 | int err; |
| 364 | |
| 365 | snd_i2c_lock(device->bus); |
| 366 | if ((err = snd_i2c_sendbytes(device, ®, 1)) != 1) { |
Takashi Iwai | 99b359b | 2005-10-20 18:26:44 +0200 | [diff] [blame] | 367 | snd_printk(KERN_ERR "unable to send register 0x%x byte to CS8427\n", reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | snd_i2c_unlock(device->bus); |
| 369 | return err < 0 ? err : -EIO; |
| 370 | } |
| 371 | if ((err = snd_i2c_readbytes(device, ucontrol->value.bytes.data, 10)) != 10) { |
Takashi Iwai | 99b359b | 2005-10-20 18:26:44 +0200 | [diff] [blame] | 372 | snd_printk(KERN_ERR "unable to read Q-subcode bytes from CS8427\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | snd_i2c_unlock(device->bus); |
| 374 | return err < 0 ? err : -EIO; |
| 375 | } |
| 376 | snd_i2c_unlock(device->bus); |
| 377 | return 0; |
| 378 | } |
| 379 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 380 | static int snd_cs8427_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | { |
| 382 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
| 383 | uinfo->count = 1; |
| 384 | return 0; |
| 385 | } |
| 386 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 387 | static int snd_cs8427_spdif_get(struct snd_kcontrol *kcontrol, |
| 388 | struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 390 | struct snd_i2c_device *device = snd_kcontrol_chip(kcontrol); |
| 391 | struct cs8427 *chip = device->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
| 393 | snd_i2c_lock(device->bus); |
| 394 | memcpy(ucontrol->value.iec958.status, chip->playback.def_status, 24); |
| 395 | snd_i2c_unlock(device->bus); |
| 396 | return 0; |
| 397 | } |
| 398 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 399 | static int snd_cs8427_spdif_put(struct snd_kcontrol *kcontrol, |
| 400 | struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 402 | struct snd_i2c_device *device = snd_kcontrol_chip(kcontrol); |
| 403 | struct cs8427 *chip = device->private_data; |
| 404 | unsigned char *status = kcontrol->private_value ? |
| 405 | chip->playback.pcm_status : chip->playback.def_status; |
| 406 | struct snd_pcm_runtime *runtime = chip->playback.substream ? |
| 407 | chip->playback.substream->runtime : NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | int err, change; |
| 409 | |
| 410 | snd_i2c_lock(device->bus); |
| 411 | change = memcmp(ucontrol->value.iec958.status, status, 24) != 0; |
| 412 | memcpy(status, ucontrol->value.iec958.status, 24); |
| 413 | if (change && (kcontrol->private_value ? runtime != NULL : runtime == NULL)) { |
| 414 | err = snd_cs8427_send_corudata(device, 0, status, 24); |
| 415 | if (err < 0) |
| 416 | change = err; |
| 417 | } |
| 418 | snd_i2c_unlock(device->bus); |
| 419 | return change; |
| 420 | } |
| 421 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 422 | static int snd_cs8427_spdif_mask_info(struct snd_kcontrol *kcontrol, |
| 423 | struct snd_ctl_elem_info *uinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | { |
| 425 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
| 426 | uinfo->count = 1; |
| 427 | return 0; |
| 428 | } |
| 429 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 430 | static int snd_cs8427_spdif_mask_get(struct snd_kcontrol *kcontrol, |
| 431 | struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | { |
| 433 | memset(ucontrol->value.iec958.status, 0xff, 24); |
| 434 | return 0; |
| 435 | } |
| 436 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 437 | static struct snd_kcontrol_new snd_cs8427_iec958_controls[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | { |
| 439 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 440 | .info = snd_cs8427_in_status_info, |
| 441 | .name = "IEC958 CS8427 Input Status", |
| 442 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 443 | .get = snd_cs8427_in_status_get, |
| 444 | .private_value = 15, |
| 445 | }, |
| 446 | { |
| 447 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 448 | .info = snd_cs8427_in_status_info, |
| 449 | .name = "IEC958 CS8427 Error Status", |
| 450 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 451 | .get = snd_cs8427_in_status_get, |
| 452 | .private_value = 16, |
| 453 | }, |
| 454 | { |
| 455 | .access = SNDRV_CTL_ELEM_ACCESS_READ, |
| 456 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 457 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK), |
| 458 | .info = snd_cs8427_spdif_mask_info, |
| 459 | .get = snd_cs8427_spdif_mask_get, |
| 460 | }, |
| 461 | { |
| 462 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 463 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), |
| 464 | .info = snd_cs8427_spdif_info, |
| 465 | .get = snd_cs8427_spdif_get, |
| 466 | .put = snd_cs8427_spdif_put, |
| 467 | .private_value = 0 |
| 468 | }, |
| 469 | { |
| 470 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE, |
| 471 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 472 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM), |
| 473 | .info = snd_cs8427_spdif_info, |
| 474 | .get = snd_cs8427_spdif_get, |
| 475 | .put = snd_cs8427_spdif_put, |
| 476 | .private_value = 1 |
| 477 | }, |
| 478 | { |
| 479 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 480 | .info = snd_cs8427_qsubcode_info, |
| 481 | .name = "IEC958 Q-subcode Capture Default", |
| 482 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 483 | .get = snd_cs8427_qsubcode_get |
| 484 | }}; |
| 485 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 486 | int snd_cs8427_iec958_build(struct snd_i2c_device *cs8427, |
| 487 | struct snd_pcm_substream *play_substream, |
| 488 | struct snd_pcm_substream *cap_substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 490 | struct cs8427 *chip = cs8427->private_data; |
| 491 | struct snd_kcontrol *kctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | unsigned int idx; |
| 493 | int err; |
| 494 | |
| 495 | snd_assert(play_substream && cap_substream, return -EINVAL); |
| 496 | for (idx = 0; idx < ARRAY_SIZE(snd_cs8427_iec958_controls); idx++) { |
| 497 | kctl = snd_ctl_new1(&snd_cs8427_iec958_controls[idx], cs8427); |
| 498 | if (kctl == NULL) |
| 499 | return -ENOMEM; |
| 500 | kctl->id.device = play_substream->pcm->device; |
| 501 | kctl->id.subdevice = play_substream->number; |
| 502 | err = snd_ctl_add(cs8427->bus->card, kctl); |
| 503 | if (err < 0) |
| 504 | return err; |
| 505 | if (!strcmp(kctl->id.name, SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM))) |
| 506 | chip->playback.pcm_ctl = kctl; |
| 507 | } |
| 508 | |
| 509 | chip->playback.substream = play_substream; |
| 510 | chip->capture.substream = cap_substream; |
| 511 | snd_assert(chip->playback.pcm_ctl, return -EIO); |
| 512 | return 0; |
| 513 | } |
| 514 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 515 | int snd_cs8427_iec958_active(struct snd_i2c_device *cs8427, int active) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 517 | struct cs8427 *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | |
| 519 | snd_assert(cs8427, return -ENXIO); |
| 520 | chip = cs8427->private_data; |
| 521 | if (active) |
| 522 | memcpy(chip->playback.pcm_status, chip->playback.def_status, 24); |
| 523 | chip->playback.pcm_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; |
| 524 | snd_ctl_notify(cs8427->bus->card, SNDRV_CTL_EVENT_MASK_VALUE | |
| 525 | SNDRV_CTL_EVENT_MASK_INFO, &chip->playback.pcm_ctl->id); |
| 526 | return 0; |
| 527 | } |
| 528 | |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 529 | int snd_cs8427_iec958_pcm(struct snd_i2c_device *cs8427, unsigned int rate) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | { |
Takashi Iwai | 97f02e0 | 2005-11-17 14:17:19 +0100 | [diff] [blame] | 531 | struct cs8427 *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | char *status; |
| 533 | int err, reset; |
| 534 | |
| 535 | snd_assert(cs8427, return -ENXIO); |
| 536 | chip = cs8427->private_data; |
| 537 | status = chip->playback.pcm_status; |
| 538 | snd_i2c_lock(cs8427->bus); |
| 539 | if (status[0] & IEC958_AES0_PROFESSIONAL) { |
| 540 | status[0] &= ~IEC958_AES0_PRO_FS; |
| 541 | switch (rate) { |
| 542 | case 32000: status[0] |= IEC958_AES0_PRO_FS_32000; break; |
| 543 | case 44100: status[0] |= IEC958_AES0_PRO_FS_44100; break; |
| 544 | case 48000: status[0] |= IEC958_AES0_PRO_FS_48000; break; |
| 545 | default: status[0] |= IEC958_AES0_PRO_FS_NOTID; break; |
| 546 | } |
| 547 | } else { |
| 548 | status[3] &= ~IEC958_AES3_CON_FS; |
| 549 | switch (rate) { |
| 550 | case 32000: status[3] |= IEC958_AES3_CON_FS_32000; break; |
| 551 | case 44100: status[3] |= IEC958_AES3_CON_FS_44100; break; |
| 552 | case 48000: status[3] |= IEC958_AES3_CON_FS_48000; break; |
| 553 | } |
| 554 | } |
| 555 | err = snd_cs8427_send_corudata(cs8427, 0, status, 24); |
| 556 | if (err > 0) |
| 557 | snd_ctl_notify(cs8427->bus->card, |
| 558 | SNDRV_CTL_EVENT_MASK_VALUE, |
| 559 | &chip->playback.pcm_ctl->id); |
| 560 | reset = chip->rate != rate; |
| 561 | chip->rate = rate; |
| 562 | snd_i2c_unlock(cs8427->bus); |
| 563 | if (reset) |
| 564 | snd_cs8427_reset(cs8427); |
| 565 | return err < 0 ? err : 0; |
| 566 | } |
| 567 | |
| 568 | static int __init alsa_cs8427_module_init(void) |
| 569 | { |
| 570 | return 0; |
| 571 | } |
| 572 | |
| 573 | static void __exit alsa_cs8427_module_exit(void) |
| 574 | { |
| 575 | } |
| 576 | |
| 577 | module_init(alsa_cs8427_module_init) |
| 578 | module_exit(alsa_cs8427_module_exit) |
| 579 | |
| 580 | EXPORT_SYMBOL(snd_cs8427_create); |
| 581 | EXPORT_SYMBOL(snd_cs8427_reset); |
| 582 | EXPORT_SYMBOL(snd_cs8427_reg_write); |
| 583 | EXPORT_SYMBOL(snd_cs8427_iec958_build); |
| 584 | EXPORT_SYMBOL(snd_cs8427_iec958_active); |
| 585 | EXPORT_SYMBOL(snd_cs8427_iec958_pcm); |