root/sound/pci/pcxhr/pcxhr.c

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DEFINITIONS

This source file includes following definitions.
  1. pcxhr_pll_freq_register
  2. pcxhr_get_clock_reg
  3. pcxhr_sub_set_clock
  4. pcxhr_set_clock
  5. pcxhr_sub_get_external_clock
  6. pcxhr_get_external_clock
  7. pcxhr_set_stream_state
  8. pcxhr_set_format
  9. pcxhr_update_r_buffer
  10. pcxhr_pipe_sample_count
  11. pcxhr_stream_scheduled_get_pipe
  12. pcxhr_start_linked_stream
  13. pcxhr_trigger
  14. pcxhr_hardware_timer
  15. pcxhr_prepare
  16. pcxhr_hw_params
  17. pcxhr_hw_free
  18. pcxhr_open
  19. pcxhr_close
  20. pcxhr_stream_pointer
  21. pcxhr_create_pcm
  22. pcxhr_chip_free
  23. pcxhr_chip_dev_free
  24. pcxhr_create
  25. pcxhr_proc_info
  26. pcxhr_proc_sync
  27. pcxhr_proc_gpio_read
  28. pcxhr_proc_gpo_write
  29. pcxhr_proc_ltc
  30. pcxhr_proc_init
  31. pcxhr_free
  32. pcxhr_probe
  33. pcxhr_remove

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Driver for Digigram pcxhr compatible soundcards
   4  *
   5  * main file with alsa callbacks
   6  *
   7  * Copyright (c) 2004 by Digigram <alsa@digigram.com>
   8  */
   9 
  10 
  11 #include <linux/init.h>
  12 #include <linux/interrupt.h>
  13 #include <linux/slab.h>
  14 #include <linux/pci.h>
  15 #include <linux/dma-mapping.h>
  16 #include <linux/delay.h>
  17 #include <linux/module.h>
  18 #include <linux/mutex.h>
  19 
  20 #include <sound/core.h>
  21 #include <sound/initval.h>
  22 #include <sound/info.h>
  23 #include <sound/control.h>
  24 #include <sound/pcm.h>
  25 #include <sound/pcm_params.h>
  26 #include "pcxhr.h"
  27 #include "pcxhr_mixer.h"
  28 #include "pcxhr_hwdep.h"
  29 #include "pcxhr_core.h"
  30 #include "pcxhr_mix22.h"
  31 
  32 #define DRIVER_NAME "pcxhr"
  33 
  34 MODULE_AUTHOR("Markus Bollinger <bollinger@digigram.com>, "
  35               "Marc Titinger <titinger@digigram.com>");
  36 MODULE_DESCRIPTION("Digigram " DRIVER_NAME " " PCXHR_DRIVER_VERSION_STRING);
  37 MODULE_LICENSE("GPL");
  38 MODULE_SUPPORTED_DEVICE("{{Digigram," DRIVER_NAME "}}");
  39 
  40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  42 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;/* Enable this card */
  43 static bool mono[SNDRV_CARDS];                          /* capture  mono only */
  44 
  45 module_param_array(index, int, NULL, 0444);
  46 MODULE_PARM_DESC(index, "Index value for Digigram " DRIVER_NAME " soundcard");
  47 module_param_array(id, charp, NULL, 0444);
  48 MODULE_PARM_DESC(id, "ID string for Digigram " DRIVER_NAME " soundcard");
  49 module_param_array(enable, bool, NULL, 0444);
  50 MODULE_PARM_DESC(enable, "Enable Digigram " DRIVER_NAME " soundcard");
  51 module_param_array(mono, bool, NULL, 0444);
  52 MODULE_PARM_DESC(mono, "Mono capture mode (default is stereo)");
  53 
  54 enum {
  55         PCI_ID_VX882HR,
  56         PCI_ID_PCX882HR,
  57         PCI_ID_VX881HR,
  58         PCI_ID_PCX881HR,
  59         PCI_ID_VX882E,
  60         PCI_ID_PCX882E,
  61         PCI_ID_VX881E,
  62         PCI_ID_PCX881E,
  63         PCI_ID_VX1222HR,
  64         PCI_ID_PCX1222HR,
  65         PCI_ID_VX1221HR,
  66         PCI_ID_PCX1221HR,
  67         PCI_ID_VX1222E,
  68         PCI_ID_PCX1222E,
  69         PCI_ID_VX1221E,
  70         PCI_ID_PCX1221E,
  71         PCI_ID_VX222HR,
  72         PCI_ID_VX222E,
  73         PCI_ID_PCX22HR,
  74         PCI_ID_PCX22E,
  75         PCI_ID_VX222HRMIC,
  76         PCI_ID_VX222E_MIC,
  77         PCI_ID_PCX924HR,
  78         PCI_ID_PCX924E,
  79         PCI_ID_PCX924HRMIC,
  80         PCI_ID_PCX924E_MIC,
  81         PCI_ID_VX442HR,
  82         PCI_ID_PCX442HR,
  83         PCI_ID_VX442E,
  84         PCI_ID_PCX442E,
  85         PCI_ID_VX822HR,
  86         PCI_ID_PCX822HR,
  87         PCI_ID_VX822E,
  88         PCI_ID_PCX822E,
  89         PCI_ID_LAST
  90 };
  91 
  92 static const struct pci_device_id pcxhr_ids[] = {
  93         { 0x10b5, 0x9656, 0x1369, 0xb001, 0, 0, PCI_ID_VX882HR, },
  94         { 0x10b5, 0x9656, 0x1369, 0xb101, 0, 0, PCI_ID_PCX882HR, },
  95         { 0x10b5, 0x9656, 0x1369, 0xb201, 0, 0, PCI_ID_VX881HR, },
  96         { 0x10b5, 0x9656, 0x1369, 0xb301, 0, 0, PCI_ID_PCX881HR, },
  97         { 0x10b5, 0x9056, 0x1369, 0xb021, 0, 0, PCI_ID_VX882E, },
  98         { 0x10b5, 0x9056, 0x1369, 0xb121, 0, 0, PCI_ID_PCX882E, },
  99         { 0x10b5, 0x9056, 0x1369, 0xb221, 0, 0, PCI_ID_VX881E, },
 100         { 0x10b5, 0x9056, 0x1369, 0xb321, 0, 0, PCI_ID_PCX881E, },
 101         { 0x10b5, 0x9656, 0x1369, 0xb401, 0, 0, PCI_ID_VX1222HR, },
 102         { 0x10b5, 0x9656, 0x1369, 0xb501, 0, 0, PCI_ID_PCX1222HR, },
 103         { 0x10b5, 0x9656, 0x1369, 0xb601, 0, 0, PCI_ID_VX1221HR, },
 104         { 0x10b5, 0x9656, 0x1369, 0xb701, 0, 0, PCI_ID_PCX1221HR, },
 105         { 0x10b5, 0x9056, 0x1369, 0xb421, 0, 0, PCI_ID_VX1222E, },
 106         { 0x10b5, 0x9056, 0x1369, 0xb521, 0, 0, PCI_ID_PCX1222E, },
 107         { 0x10b5, 0x9056, 0x1369, 0xb621, 0, 0, PCI_ID_VX1221E, },
 108         { 0x10b5, 0x9056, 0x1369, 0xb721, 0, 0, PCI_ID_PCX1221E, },
 109         { 0x10b5, 0x9056, 0x1369, 0xba01, 0, 0, PCI_ID_VX222HR, },
 110         { 0x10b5, 0x9056, 0x1369, 0xba21, 0, 0, PCI_ID_VX222E, },
 111         { 0x10b5, 0x9056, 0x1369, 0xbd01, 0, 0, PCI_ID_PCX22HR, },
 112         { 0x10b5, 0x9056, 0x1369, 0xbd21, 0, 0, PCI_ID_PCX22E, },
 113         { 0x10b5, 0x9056, 0x1369, 0xbc01, 0, 0, PCI_ID_VX222HRMIC, },
 114         { 0x10b5, 0x9056, 0x1369, 0xbc21, 0, 0, PCI_ID_VX222E_MIC, },
 115         { 0x10b5, 0x9056, 0x1369, 0xbb01, 0, 0, PCI_ID_PCX924HR, },
 116         { 0x10b5, 0x9056, 0x1369, 0xbb21, 0, 0, PCI_ID_PCX924E, },
 117         { 0x10b5, 0x9056, 0x1369, 0xbf01, 0, 0, PCI_ID_PCX924HRMIC, },
 118         { 0x10b5, 0x9056, 0x1369, 0xbf21, 0, 0, PCI_ID_PCX924E_MIC, },
 119         { 0x10b5, 0x9656, 0x1369, 0xd001, 0, 0, PCI_ID_VX442HR, },
 120         { 0x10b5, 0x9656, 0x1369, 0xd101, 0, 0, PCI_ID_PCX442HR, },
 121         { 0x10b5, 0x9056, 0x1369, 0xd021, 0, 0, PCI_ID_VX442E, },
 122         { 0x10b5, 0x9056, 0x1369, 0xd121, 0, 0, PCI_ID_PCX442E, },
 123         { 0x10b5, 0x9656, 0x1369, 0xd201, 0, 0, PCI_ID_VX822HR, },
 124         { 0x10b5, 0x9656, 0x1369, 0xd301, 0, 0, PCI_ID_PCX822HR, },
 125         { 0x10b5, 0x9056, 0x1369, 0xd221, 0, 0, PCI_ID_VX822E, },
 126         { 0x10b5, 0x9056, 0x1369, 0xd321, 0, 0, PCI_ID_PCX822E, },
 127         { 0, }
 128 };
 129 
 130 MODULE_DEVICE_TABLE(pci, pcxhr_ids);
 131 
 132 struct board_parameters {
 133         char* board_name;
 134         short playback_chips;
 135         short capture_chips;
 136         short fw_file_set;
 137         short firmware_num;
 138 };
 139 static struct board_parameters pcxhr_board_params[] = {
 140 [PCI_ID_VX882HR] =      { "VX882HR",      4, 4, 0, 41 },
 141 [PCI_ID_PCX882HR] =     { "PCX882HR",     4, 4, 0, 41 },
 142 [PCI_ID_VX881HR] =      { "VX881HR",      4, 4, 0, 41 },
 143 [PCI_ID_PCX881HR] =     { "PCX881HR",     4, 4, 0, 41 },
 144 [PCI_ID_VX882E] =       { "VX882e",       4, 4, 1, 41 },
 145 [PCI_ID_PCX882E] =      { "PCX882e",      4, 4, 1, 41 },
 146 [PCI_ID_VX881E] =       { "VX881e",       4, 4, 1, 41 },
 147 [PCI_ID_PCX881E] =      { "PCX881e",      4, 4, 1, 41 },
 148 [PCI_ID_VX1222HR] =     { "VX1222HR",     6, 1, 2, 42 },
 149 [PCI_ID_PCX1222HR] =    { "PCX1222HR",    6, 1, 2, 42 },
 150 [PCI_ID_VX1221HR] =     { "VX1221HR",     6, 1, 2, 42 },
 151 [PCI_ID_PCX1221HR] =    { "PCX1221HR",    6, 1, 2, 42 },
 152 [PCI_ID_VX1222E] =      { "VX1222e",      6, 1, 3, 42 },
 153 [PCI_ID_PCX1222E] =     { "PCX1222e",     6, 1, 3, 42 },
 154 [PCI_ID_VX1221E] =      { "VX1221e",      6, 1, 3, 42 },
 155 [PCI_ID_PCX1221E] =     { "PCX1221e",     6, 1, 3, 42 },
 156 [PCI_ID_VX222HR] =      { "VX222HR",      1, 1, 4, 44 },
 157 [PCI_ID_VX222E] =       { "VX222e",       1, 1, 4, 44 },
 158 [PCI_ID_PCX22HR] =      { "PCX22HR",      1, 0, 4, 44 },
 159 [PCI_ID_PCX22E] =       { "PCX22e",       1, 0, 4, 44 },
 160 [PCI_ID_VX222HRMIC] =   { "VX222HR-Mic",  1, 1, 5, 44 },
 161 [PCI_ID_VX222E_MIC] =   { "VX222e-Mic",   1, 1, 5, 44 },
 162 [PCI_ID_PCX924HR] =     { "PCX924HR",     1, 1, 5, 44 },
 163 [PCI_ID_PCX924E] =      { "PCX924e",      1, 1, 5, 44 },
 164 [PCI_ID_PCX924HRMIC] =  { "PCX924HR-Mic", 1, 1, 5, 44 },
 165 [PCI_ID_PCX924E_MIC] =  { "PCX924e-Mic",  1, 1, 5, 44 },
 166 [PCI_ID_VX442HR] =      { "VX442HR",      2, 2, 0, 41 },
 167 [PCI_ID_PCX442HR] =     { "PCX442HR",     2, 2, 0, 41 },
 168 [PCI_ID_VX442E] =       { "VX442e",       2, 2, 1, 41 },
 169 [PCI_ID_PCX442E] =      { "PCX442e",      2, 2, 1, 41 },
 170 [PCI_ID_VX822HR] =      { "VX822HR",      4, 1, 2, 42 },
 171 [PCI_ID_PCX822HR] =     { "PCX822HR",     4, 1, 2, 42 },
 172 [PCI_ID_VX822E] =       { "VX822e",       4, 1, 3, 42 },
 173 [PCI_ID_PCX822E] =      { "PCX822e",      4, 1, 3, 42 },
 174 };
 175 
 176 /* boards without hw AES1 and SRC onboard are all using fw_file_set==4 */
 177 /* VX222HR, VX222e, PCX22HR and PCX22e */
 178 #define PCXHR_BOARD_HAS_AES1(x) (x->fw_file_set != 4)
 179 /* some boards do not support 192kHz on digital AES input plugs */
 180 #define PCXHR_BOARD_AESIN_NO_192K(x) ((x->capture_chips == 0) || \
 181                                       (x->fw_file_set == 0)   || \
 182                                       (x->fw_file_set == 2))
 183 
 184 static int pcxhr_pll_freq_register(unsigned int freq, unsigned int* pllreg,
 185                                    unsigned int* realfreq)
 186 {
 187         unsigned int reg;
 188 
 189         if (freq < 6900 || freq > 110000)
 190                 return -EINVAL;
 191         reg = (28224000 * 2) / freq;
 192         reg = (reg - 1) / 2;
 193         if (reg < 0x200)
 194                 *pllreg = reg + 0x800;
 195         else if (reg < 0x400)
 196                 *pllreg = reg & 0x1ff;
 197         else if (reg < 0x800) {
 198                 *pllreg = ((reg >> 1) & 0x1ff) + 0x200;
 199                 reg &= ~1;
 200         } else {
 201                 *pllreg = ((reg >> 2) & 0x1ff) + 0x400;
 202                 reg &= ~3;
 203         }
 204         if (realfreq)
 205                 *realfreq = (28224000 / (reg + 1));
 206         return 0;
 207 }
 208 
 209 
 210 #define PCXHR_FREQ_REG_MASK             0x1f
 211 #define PCXHR_FREQ_QUARTZ_48000         0x00
 212 #define PCXHR_FREQ_QUARTZ_24000         0x01
 213 #define PCXHR_FREQ_QUARTZ_12000         0x09
 214 #define PCXHR_FREQ_QUARTZ_32000         0x08
 215 #define PCXHR_FREQ_QUARTZ_16000         0x04
 216 #define PCXHR_FREQ_QUARTZ_8000          0x0c
 217 #define PCXHR_FREQ_QUARTZ_44100         0x02
 218 #define PCXHR_FREQ_QUARTZ_22050         0x0a
 219 #define PCXHR_FREQ_QUARTZ_11025         0x06
 220 #define PCXHR_FREQ_PLL                  0x05
 221 #define PCXHR_FREQ_QUARTZ_192000        0x10
 222 #define PCXHR_FREQ_QUARTZ_96000         0x18
 223 #define PCXHR_FREQ_QUARTZ_176400        0x14
 224 #define PCXHR_FREQ_QUARTZ_88200         0x1c
 225 #define PCXHR_FREQ_QUARTZ_128000        0x12
 226 #define PCXHR_FREQ_QUARTZ_64000         0x1a
 227 
 228 #define PCXHR_FREQ_WORD_CLOCK           0x0f
 229 #define PCXHR_FREQ_SYNC_AES             0x0e
 230 #define PCXHR_FREQ_AES_1                0x07
 231 #define PCXHR_FREQ_AES_2                0x0b
 232 #define PCXHR_FREQ_AES_3                0x03
 233 #define PCXHR_FREQ_AES_4                0x0d
 234 
 235 static int pcxhr_get_clock_reg(struct pcxhr_mgr *mgr, unsigned int rate,
 236                                unsigned int *reg, unsigned int *freq)
 237 {
 238         unsigned int val, realfreq, pllreg;
 239         struct pcxhr_rmh rmh;
 240         int err;
 241 
 242         realfreq = rate;
 243         switch (mgr->use_clock_type) {
 244         case PCXHR_CLOCK_TYPE_INTERNAL :        /* clock by quartz or pll */
 245                 switch (rate) {
 246                 case 48000 :    val = PCXHR_FREQ_QUARTZ_48000;  break;
 247                 case 24000 :    val = PCXHR_FREQ_QUARTZ_24000;  break;
 248                 case 12000 :    val = PCXHR_FREQ_QUARTZ_12000;  break;
 249                 case 32000 :    val = PCXHR_FREQ_QUARTZ_32000;  break;
 250                 case 16000 :    val = PCXHR_FREQ_QUARTZ_16000;  break;
 251                 case 8000 :     val = PCXHR_FREQ_QUARTZ_8000;   break;
 252                 case 44100 :    val = PCXHR_FREQ_QUARTZ_44100;  break;
 253                 case 22050 :    val = PCXHR_FREQ_QUARTZ_22050;  break;
 254                 case 11025 :    val = PCXHR_FREQ_QUARTZ_11025;  break;
 255                 case 192000 :   val = PCXHR_FREQ_QUARTZ_192000; break;
 256                 case 96000 :    val = PCXHR_FREQ_QUARTZ_96000;  break;
 257                 case 176400 :   val = PCXHR_FREQ_QUARTZ_176400; break;
 258                 case 88200 :    val = PCXHR_FREQ_QUARTZ_88200;  break;
 259                 case 128000 :   val = PCXHR_FREQ_QUARTZ_128000; break;
 260                 case 64000 :    val = PCXHR_FREQ_QUARTZ_64000;  break;
 261                 default :
 262                         val = PCXHR_FREQ_PLL;
 263                         /* get the value for the pll register */
 264                         err = pcxhr_pll_freq_register(rate, &pllreg, &realfreq);
 265                         if (err)
 266                                 return err;
 267                         pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
 268                         rmh.cmd[0] |= IO_NUM_REG_GENCLK;
 269                         rmh.cmd[1]  = pllreg & MASK_DSP_WORD;
 270                         rmh.cmd[2]  = pllreg >> 24;
 271                         rmh.cmd_len = 3;
 272                         err = pcxhr_send_msg(mgr, &rmh);
 273                         if (err < 0) {
 274                                 dev_err(&mgr->pci->dev,
 275                                            "error CMD_ACCESS_IO_WRITE "
 276                                            "for PLL register : %x!\n", err);
 277                                 return err;
 278                         }
 279                 }
 280                 break;
 281         case PCXHR_CLOCK_TYPE_WORD_CLOCK:
 282                 val = PCXHR_FREQ_WORD_CLOCK;
 283                 break;
 284         case PCXHR_CLOCK_TYPE_AES_SYNC:
 285                 val = PCXHR_FREQ_SYNC_AES;
 286                 break;
 287         case PCXHR_CLOCK_TYPE_AES_1:
 288                 val = PCXHR_FREQ_AES_1;
 289                 break;
 290         case PCXHR_CLOCK_TYPE_AES_2:
 291                 val = PCXHR_FREQ_AES_2;
 292                 break;
 293         case PCXHR_CLOCK_TYPE_AES_3:
 294                 val = PCXHR_FREQ_AES_3;
 295                 break;
 296         case PCXHR_CLOCK_TYPE_AES_4:
 297                 val = PCXHR_FREQ_AES_4;
 298                 break;
 299         default:
 300                 return -EINVAL;
 301         }
 302         *reg = val;
 303         *freq = realfreq;
 304         return 0;
 305 }
 306 
 307 
 308 static int pcxhr_sub_set_clock(struct pcxhr_mgr *mgr,
 309                                unsigned int rate,
 310                                int *changed)
 311 {
 312         unsigned int val, realfreq, speed;
 313         struct pcxhr_rmh rmh;
 314         int err;
 315 
 316         err = pcxhr_get_clock_reg(mgr, rate, &val, &realfreq);
 317         if (err)
 318                 return err;
 319 
 320         /* codec speed modes */
 321         if (rate < 55000)
 322                 speed = 0;      /* single speed */
 323         else if (rate < 100000)
 324                 speed = 1;      /* dual speed */
 325         else
 326                 speed = 2;      /* quad speed */
 327         if (mgr->codec_speed != speed) {
 328                 pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE); /* mute outputs */
 329                 rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
 330                 if (DSP_EXT_CMD_SET(mgr)) {
 331                         rmh.cmd[1]  = 1;
 332                         rmh.cmd_len = 2;
 333                 }
 334                 err = pcxhr_send_msg(mgr, &rmh);
 335                 if (err)
 336                         return err;
 337 
 338                 pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE); /* set speed ratio */
 339                 rmh.cmd[0] |= IO_NUM_SPEED_RATIO;
 340                 rmh.cmd[1] = speed;
 341                 rmh.cmd_len = 2;
 342                 err = pcxhr_send_msg(mgr, &rmh);
 343                 if (err)
 344                         return err;
 345         }
 346         /* set the new frequency */
 347         dev_dbg(&mgr->pci->dev, "clock register : set %x\n", val);
 348         err = pcxhr_write_io_num_reg_cont(mgr, PCXHR_FREQ_REG_MASK,
 349                                           val, changed);
 350         if (err)
 351                 return err;
 352 
 353         mgr->sample_rate_real = realfreq;
 354         mgr->cur_clock_type = mgr->use_clock_type;
 355 
 356         /* unmute after codec speed modes */
 357         if (mgr->codec_speed != speed) {
 358                 pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ); /* unmute outputs */
 359                 rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
 360                 if (DSP_EXT_CMD_SET(mgr)) {
 361                         rmh.cmd[1]  = 1;
 362                         rmh.cmd_len = 2;
 363                 }
 364                 err = pcxhr_send_msg(mgr, &rmh);
 365                 if (err)
 366                         return err;
 367                 mgr->codec_speed = speed;       /* save new codec speed */
 368         }
 369 
 370         dev_dbg(&mgr->pci->dev, "pcxhr_sub_set_clock to %dHz (realfreq=%d)\n",
 371                     rate, realfreq);
 372         return 0;
 373 }
 374 
 375 #define PCXHR_MODIFY_CLOCK_S_BIT        0x04
 376 
 377 #define PCXHR_IRQ_TIMER_FREQ            92000
 378 #define PCXHR_IRQ_TIMER_PERIOD          48
 379 
 380 int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate)
 381 {
 382         struct pcxhr_rmh rmh;
 383         int err, changed;
 384 
 385         if (rate == 0)
 386                 return 0; /* nothing to do */
 387 
 388         if (mgr->is_hr_stereo)
 389                 err = hr222_sub_set_clock(mgr, rate, &changed);
 390         else
 391                 err = pcxhr_sub_set_clock(mgr, rate, &changed);
 392 
 393         if (err)
 394                 return err;
 395 
 396         if (changed) {
 397                 pcxhr_init_rmh(&rmh, CMD_MODIFY_CLOCK);
 398                 rmh.cmd[0] |= PCXHR_MODIFY_CLOCK_S_BIT; /* resync fifos  */
 399                 if (rate < PCXHR_IRQ_TIMER_FREQ)
 400                         rmh.cmd[1] = PCXHR_IRQ_TIMER_PERIOD;
 401                 else
 402                         rmh.cmd[1] = PCXHR_IRQ_TIMER_PERIOD * 2;
 403                 rmh.cmd[2] = rate;
 404                 rmh.cmd_len = 3;
 405                 err = pcxhr_send_msg(mgr, &rmh);
 406                 if (err)
 407                         return err;
 408         }
 409         return 0;
 410 }
 411 
 412 
 413 static int pcxhr_sub_get_external_clock(struct pcxhr_mgr *mgr,
 414                                         enum pcxhr_clock_type clock_type,
 415                                         int *sample_rate)
 416 {
 417         struct pcxhr_rmh rmh;
 418         unsigned char reg;
 419         int err, rate;
 420 
 421         switch (clock_type) {
 422         case PCXHR_CLOCK_TYPE_WORD_CLOCK:
 423                 reg = REG_STATUS_WORD_CLOCK;
 424                 break;
 425         case PCXHR_CLOCK_TYPE_AES_SYNC:
 426                 reg = REG_STATUS_AES_SYNC;
 427                 break;
 428         case PCXHR_CLOCK_TYPE_AES_1:
 429                 reg = REG_STATUS_AES_1;
 430                 break;
 431         case PCXHR_CLOCK_TYPE_AES_2:
 432                 reg = REG_STATUS_AES_2;
 433                 break;
 434         case PCXHR_CLOCK_TYPE_AES_3:
 435                 reg = REG_STATUS_AES_3;
 436                 break;
 437         case PCXHR_CLOCK_TYPE_AES_4:
 438                 reg = REG_STATUS_AES_4;
 439                 break;
 440         default:
 441                 return -EINVAL;
 442         }
 443         pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
 444         rmh.cmd_len = 2;
 445         rmh.cmd[0] |= IO_NUM_REG_STATUS;
 446         if (mgr->last_reg_stat != reg) {
 447                 rmh.cmd[1]  = reg;
 448                 err = pcxhr_send_msg(mgr, &rmh);
 449                 if (err)
 450                         return err;
 451                 udelay(100);    /* wait minimum 2 sample_frames at 32kHz ! */
 452                 mgr->last_reg_stat = reg;
 453         }
 454         rmh.cmd[1]  = REG_STATUS_CURRENT;
 455         err = pcxhr_send_msg(mgr, &rmh);
 456         if (err)
 457                 return err;
 458         switch (rmh.stat[1] & 0x0f) {
 459         case REG_STATUS_SYNC_32000 :    rate = 32000; break;
 460         case REG_STATUS_SYNC_44100 :    rate = 44100; break;
 461         case REG_STATUS_SYNC_48000 :    rate = 48000; break;
 462         case REG_STATUS_SYNC_64000 :    rate = 64000; break;
 463         case REG_STATUS_SYNC_88200 :    rate = 88200; break;
 464         case REG_STATUS_SYNC_96000 :    rate = 96000; break;
 465         case REG_STATUS_SYNC_128000 :   rate = 128000; break;
 466         case REG_STATUS_SYNC_176400 :   rate = 176400; break;
 467         case REG_STATUS_SYNC_192000 :   rate = 192000; break;
 468         default: rate = 0;
 469         }
 470         dev_dbg(&mgr->pci->dev, "External clock is at %d Hz\n", rate);
 471         *sample_rate = rate;
 472         return 0;
 473 }
 474 
 475 
 476 int pcxhr_get_external_clock(struct pcxhr_mgr *mgr,
 477                              enum pcxhr_clock_type clock_type,
 478                              int *sample_rate)
 479 {
 480         if (mgr->is_hr_stereo)
 481                 return hr222_get_external_clock(mgr, clock_type,
 482                                                 sample_rate);
 483         else
 484                 return pcxhr_sub_get_external_clock(mgr, clock_type,
 485                                                     sample_rate);
 486 }
 487 
 488 /*
 489  *  start or stop playback/capture substream
 490  */
 491 static int pcxhr_set_stream_state(struct snd_pcxhr *chip,
 492                                   struct pcxhr_stream *stream)
 493 {
 494         int err;
 495         struct pcxhr_rmh rmh;
 496         int stream_mask, start;
 497 
 498         if (stream->status == PCXHR_STREAM_STATUS_SCHEDULE_RUN)
 499                 start = 1;
 500         else {
 501                 if (stream->status != PCXHR_STREAM_STATUS_SCHEDULE_STOP) {
 502                         dev_err(chip->card->dev,
 503                                 "pcxhr_set_stream_state CANNOT be stopped\n");
 504                         return -EINVAL;
 505                 }
 506                 start = 0;
 507         }
 508         if (!stream->substream)
 509                 return -EINVAL;
 510 
 511         stream->timer_abs_periods = 0;
 512         stream->timer_period_frag = 0;  /* reset theoretical stream pos */
 513         stream->timer_buf_periods = 0;
 514         stream->timer_is_synced = 0;
 515 
 516         stream_mask =
 517           stream->pipe->is_capture ? 1 : 1<<stream->substream->number;
 518 
 519         pcxhr_init_rmh(&rmh, start ? CMD_START_STREAM : CMD_STOP_STREAM);
 520         pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture,
 521                                   stream->pipe->first_audio, 0, stream_mask);
 522 
 523         chip = snd_pcm_substream_chip(stream->substream);
 524 
 525         err = pcxhr_send_msg(chip->mgr, &rmh);
 526         if (err)
 527                 dev_err(chip->card->dev,
 528                         "ERROR pcxhr_set_stream_state err=%x;\n", err);
 529         stream->status =
 530           start ? PCXHR_STREAM_STATUS_STARTED : PCXHR_STREAM_STATUS_STOPPED;
 531         return err;
 532 }
 533 
 534 #define HEADER_FMT_BASE_LIN             0xfed00000
 535 #define HEADER_FMT_BASE_FLOAT           0xfad00000
 536 #define HEADER_FMT_INTEL                0x00008000
 537 #define HEADER_FMT_24BITS               0x00004000
 538 #define HEADER_FMT_16BITS               0x00002000
 539 #define HEADER_FMT_UPTO11               0x00000200
 540 #define HEADER_FMT_UPTO32               0x00000100
 541 #define HEADER_FMT_MONO                 0x00000080
 542 
 543 static int pcxhr_set_format(struct pcxhr_stream *stream)
 544 {
 545         int err, is_capture, sample_rate, stream_num;
 546         struct snd_pcxhr *chip;
 547         struct pcxhr_rmh rmh;
 548         unsigned int header;
 549 
 550         chip = snd_pcm_substream_chip(stream->substream);
 551         switch (stream->format) {
 552         case SNDRV_PCM_FORMAT_U8:
 553                 header = HEADER_FMT_BASE_LIN;
 554                 break;
 555         case SNDRV_PCM_FORMAT_S16_LE:
 556                 header = HEADER_FMT_BASE_LIN |
 557                          HEADER_FMT_16BITS | HEADER_FMT_INTEL;
 558                 break;
 559         case SNDRV_PCM_FORMAT_S16_BE:
 560                 header = HEADER_FMT_BASE_LIN | HEADER_FMT_16BITS;
 561                 break;
 562         case SNDRV_PCM_FORMAT_S24_3LE:
 563                 header = HEADER_FMT_BASE_LIN |
 564                          HEADER_FMT_24BITS | HEADER_FMT_INTEL;
 565                 break;
 566         case SNDRV_PCM_FORMAT_S24_3BE:
 567                 header = HEADER_FMT_BASE_LIN | HEADER_FMT_24BITS;
 568                 break;
 569         case SNDRV_PCM_FORMAT_FLOAT_LE:
 570                 header = HEADER_FMT_BASE_FLOAT | HEADER_FMT_INTEL;
 571                 break;
 572         default:
 573                 dev_err(chip->card->dev,
 574                         "error pcxhr_set_format() : unknown format\n");
 575                 return -EINVAL;
 576         }
 577 
 578         sample_rate = chip->mgr->sample_rate;
 579         if (sample_rate <= 32000 && sample_rate !=0) {
 580                 if (sample_rate <= 11025)
 581                         header |= HEADER_FMT_UPTO11;
 582                 else
 583                         header |= HEADER_FMT_UPTO32;
 584         }
 585         if (stream->channels == 1)
 586                 header |= HEADER_FMT_MONO;
 587 
 588         is_capture = stream->pipe->is_capture;
 589         stream_num = is_capture ? 0 : stream->substream->number;
 590 
 591         pcxhr_init_rmh(&rmh, is_capture ?
 592                        CMD_FORMAT_STREAM_IN : CMD_FORMAT_STREAM_OUT);
 593         pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio,
 594                                   stream_num, 0);
 595         if (is_capture) {
 596                 /* bug with old dsp versions: */
 597                 /* bit 12 also sets the format of the playback stream */
 598                 if (DSP_EXT_CMD_SET(chip->mgr))
 599                         rmh.cmd[0] |= 1<<10;
 600                 else
 601                         rmh.cmd[0] |= 1<<12;
 602         }
 603         rmh.cmd[1] = 0;
 604         rmh.cmd_len = 2;
 605         if (DSP_EXT_CMD_SET(chip->mgr)) {
 606                 /* add channels and set bit 19 if channels>2 */
 607                 rmh.cmd[1] = stream->channels;
 608                 if (!is_capture) {
 609                         /* playback : add channel mask to command */
 610                         rmh.cmd[2] = (stream->channels == 1) ? 0x01 : 0x03;
 611                         rmh.cmd_len = 3;
 612                 }
 613         }
 614         rmh.cmd[rmh.cmd_len++] = header >> 8;
 615         rmh.cmd[rmh.cmd_len++] = (header & 0xff) << 16;
 616         err = pcxhr_send_msg(chip->mgr, &rmh);
 617         if (err)
 618                 dev_err(chip->card->dev,
 619                         "ERROR pcxhr_set_format err=%x;\n", err);
 620         return err;
 621 }
 622 
 623 static int pcxhr_update_r_buffer(struct pcxhr_stream *stream)
 624 {
 625         int err, is_capture, stream_num;
 626         struct pcxhr_rmh rmh;
 627         struct snd_pcm_substream *subs = stream->substream;
 628         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 629 
 630         is_capture = (subs->stream == SNDRV_PCM_STREAM_CAPTURE);
 631         stream_num = is_capture ? 0 : subs->number;
 632 
 633         dev_dbg(chip->card->dev,
 634                 "pcxhr_update_r_buffer(pcm%c%d) : addr(%p) bytes(%zx) subs(%d)\n",
 635                 is_capture ? 'c' : 'p',
 636                 chip->chip_idx, (void *)(long)subs->runtime->dma_addr,
 637                 subs->runtime->dma_bytes, subs->number);
 638 
 639         pcxhr_init_rmh(&rmh, CMD_UPDATE_R_BUFFERS);
 640         pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio,
 641                                   stream_num, 0);
 642 
 643         /* max buffer size is 2 MByte */
 644         snd_BUG_ON(subs->runtime->dma_bytes >= 0x200000);
 645         /* size in bits */
 646         rmh.cmd[1] = subs->runtime->dma_bytes * 8;
 647         /* most significant byte */
 648         rmh.cmd[2] = subs->runtime->dma_addr >> 24;
 649         /* this is a circular buffer */
 650         rmh.cmd[2] |= 1<<19;
 651         /* least 3 significant bytes */
 652         rmh.cmd[3] = subs->runtime->dma_addr & MASK_DSP_WORD;
 653         rmh.cmd_len = 4;
 654         err = pcxhr_send_msg(chip->mgr, &rmh);
 655         if (err)
 656                 dev_err(chip->card->dev,
 657                            "ERROR CMD_UPDATE_R_BUFFERS err=%x;\n", err);
 658         return err;
 659 }
 660 
 661 
 662 #if 0
 663 static int pcxhr_pipe_sample_count(struct pcxhr_stream *stream,
 664                                    snd_pcm_uframes_t *sample_count)
 665 {
 666         struct pcxhr_rmh rmh;
 667         int err;
 668         pcxhr_t *chip = snd_pcm_substream_chip(stream->substream);
 669         pcxhr_init_rmh(&rmh, CMD_PIPE_SAMPLE_COUNT);
 670         pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture, 0, 0,
 671                                   1<<stream->pipe->first_audio);
 672         err = pcxhr_send_msg(chip->mgr, &rmh);
 673         if (err == 0) {
 674                 *sample_count = ((snd_pcm_uframes_t)rmh.stat[0]) << 24;
 675                 *sample_count += (snd_pcm_uframes_t)rmh.stat[1];
 676         }
 677         dev_dbg(chip->card->dev, "PIPE_SAMPLE_COUNT = %lx\n", *sample_count);
 678         return err;
 679 }
 680 #endif
 681 
 682 static inline int pcxhr_stream_scheduled_get_pipe(struct pcxhr_stream *stream,
 683                                                   struct pcxhr_pipe **pipe)
 684 {
 685         if (stream->status == PCXHR_STREAM_STATUS_SCHEDULE_RUN) {
 686                 *pipe = stream->pipe;
 687                 return 1;
 688         }
 689         return 0;
 690 }
 691 
 692 static void pcxhr_start_linked_stream(struct pcxhr_mgr *mgr)
 693 {
 694         int i, j, err;
 695         struct pcxhr_pipe *pipe;
 696         struct snd_pcxhr *chip;
 697         int capture_mask = 0;
 698         int playback_mask = 0;
 699 
 700 #ifdef CONFIG_SND_DEBUG_VERBOSE
 701         ktime_t start_time, stop_time, diff_time;
 702 
 703         start_time = ktime_get();
 704 #endif
 705         mutex_lock(&mgr->setup_mutex);
 706 
 707         /* check the pipes concerned and build pipe_array */
 708         for (i = 0; i < mgr->num_cards; i++) {
 709                 chip = mgr->chip[i];
 710                 for (j = 0; j < chip->nb_streams_capt; j++) {
 711                         if (pcxhr_stream_scheduled_get_pipe(&chip->capture_stream[j], &pipe))
 712                                 capture_mask |= (1 << pipe->first_audio);
 713                 }
 714                 for (j = 0; j < chip->nb_streams_play; j++) {
 715                         if (pcxhr_stream_scheduled_get_pipe(&chip->playback_stream[j], &pipe)) {
 716                                 playback_mask |= (1 << pipe->first_audio);
 717                                 break;  /* add only once, as all playback
 718                                          * streams of one chip use the same pipe
 719                                          */
 720                         }
 721                 }
 722         }
 723         if (capture_mask == 0 && playback_mask == 0) {
 724                 mutex_unlock(&mgr->setup_mutex);
 725                 dev_err(&mgr->pci->dev, "pcxhr_start_linked_stream : no pipes\n");
 726                 return;
 727         }
 728 
 729         dev_dbg(&mgr->pci->dev, "pcxhr_start_linked_stream : "
 730                     "playback_mask=%x capture_mask=%x\n",
 731                     playback_mask, capture_mask);
 732 
 733         /* synchronous stop of all the pipes concerned */
 734         err = pcxhr_set_pipe_state(mgr,  playback_mask, capture_mask, 0);
 735         if (err) {
 736                 mutex_unlock(&mgr->setup_mutex);
 737                 dev_err(&mgr->pci->dev, "pcxhr_start_linked_stream : "
 738                            "error stop pipes (P%x C%x)\n",
 739                            playback_mask, capture_mask);
 740                 return;
 741         }
 742 
 743         /* the dsp lost format and buffer info with the stop pipe */
 744         for (i = 0; i < mgr->num_cards; i++) {
 745                 struct pcxhr_stream *stream;
 746                 chip = mgr->chip[i];
 747                 for (j = 0; j < chip->nb_streams_capt; j++) {
 748                         stream = &chip->capture_stream[j];
 749                         if (pcxhr_stream_scheduled_get_pipe(stream, &pipe)) {
 750                                 err = pcxhr_set_format(stream);
 751                                 err = pcxhr_update_r_buffer(stream);
 752                         }
 753                 }
 754                 for (j = 0; j < chip->nb_streams_play; j++) {
 755                         stream = &chip->playback_stream[j];
 756                         if (pcxhr_stream_scheduled_get_pipe(stream, &pipe)) {
 757                                 err = pcxhr_set_format(stream);
 758                                 err = pcxhr_update_r_buffer(stream);
 759                         }
 760                 }
 761         }
 762         /* start all the streams */
 763         for (i = 0; i < mgr->num_cards; i++) {
 764                 struct pcxhr_stream *stream;
 765                 chip = mgr->chip[i];
 766                 for (j = 0; j < chip->nb_streams_capt; j++) {
 767                         stream = &chip->capture_stream[j];
 768                         if (pcxhr_stream_scheduled_get_pipe(stream, &pipe))
 769                                 err = pcxhr_set_stream_state(chip, stream);
 770                 }
 771                 for (j = 0; j < chip->nb_streams_play; j++) {
 772                         stream = &chip->playback_stream[j];
 773                         if (pcxhr_stream_scheduled_get_pipe(stream, &pipe))
 774                                 err = pcxhr_set_stream_state(chip, stream);
 775                 }
 776         }
 777 
 778         /* synchronous start of all the pipes concerned */
 779         err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
 780         if (err) {
 781                 mutex_unlock(&mgr->setup_mutex);
 782                 dev_err(&mgr->pci->dev, "pcxhr_start_linked_stream : "
 783                            "error start pipes (P%x C%x)\n",
 784                            playback_mask, capture_mask);
 785                 return;
 786         }
 787 
 788         /* put the streams into the running state now
 789          * (increment pointer by interrupt)
 790          */
 791         mutex_lock(&mgr->lock);
 792         for ( i =0; i < mgr->num_cards; i++) {
 793                 struct pcxhr_stream *stream;
 794                 chip = mgr->chip[i];
 795                 for(j = 0; j < chip->nb_streams_capt; j++) {
 796                         stream = &chip->capture_stream[j];
 797                         if(stream->status == PCXHR_STREAM_STATUS_STARTED)
 798                                 stream->status = PCXHR_STREAM_STATUS_RUNNING;
 799                 }
 800                 for (j = 0; j < chip->nb_streams_play; j++) {
 801                         stream = &chip->playback_stream[j];
 802                         if (stream->status == PCXHR_STREAM_STATUS_STARTED) {
 803                                 /* playback will already have advanced ! */
 804                                 stream->timer_period_frag += mgr->granularity;
 805                                 stream->status = PCXHR_STREAM_STATUS_RUNNING;
 806                         }
 807                 }
 808         }
 809         mutex_unlock(&mgr->lock);
 810 
 811         mutex_unlock(&mgr->setup_mutex);
 812 
 813 #ifdef CONFIG_SND_DEBUG_VERBOSE
 814         stop_time = ktime_get();
 815         diff_time = ktime_sub(stop_time, start_time);
 816         dev_dbg(&mgr->pci->dev, "***TRIGGER START*** TIME = %ld (err = %x)\n",
 817                     (long)(ktime_to_ns(diff_time)), err);
 818 #endif
 819 }
 820 
 821 
 822 /*
 823  *  trigger callback
 824  */
 825 static int pcxhr_trigger(struct snd_pcm_substream *subs, int cmd)
 826 {
 827         struct pcxhr_stream *stream;
 828         struct snd_pcm_substream *s;
 829         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 830 
 831         switch (cmd) {
 832         case SNDRV_PCM_TRIGGER_START:
 833                 dev_dbg(chip->card->dev, "SNDRV_PCM_TRIGGER_START\n");
 834                 if (snd_pcm_stream_linked(subs)) {
 835                         snd_pcm_group_for_each_entry(s, subs) {
 836                                 if (snd_pcm_substream_chip(s) != chip)
 837                                         continue;
 838                                 stream = s->runtime->private_data;
 839                                 stream->status =
 840                                         PCXHR_STREAM_STATUS_SCHEDULE_RUN;
 841                                 snd_pcm_trigger_done(s, subs);
 842                         }
 843                         pcxhr_start_linked_stream(chip->mgr);
 844                 } else {
 845                         stream = subs->runtime->private_data;
 846                         dev_dbg(chip->card->dev, "Only one Substream %c %d\n",
 847                                     stream->pipe->is_capture ? 'C' : 'P',
 848                                     stream->pipe->first_audio);
 849                         if (pcxhr_set_format(stream))
 850                                 return -EINVAL;
 851                         if (pcxhr_update_r_buffer(stream))
 852                                 return -EINVAL;
 853 
 854                         stream->status = PCXHR_STREAM_STATUS_SCHEDULE_RUN;
 855                         if (pcxhr_set_stream_state(chip, stream))
 856                                 return -EINVAL;
 857                         stream->status = PCXHR_STREAM_STATUS_RUNNING;
 858                 }
 859                 break;
 860         case SNDRV_PCM_TRIGGER_STOP:
 861                 dev_dbg(chip->card->dev, "SNDRV_PCM_TRIGGER_STOP\n");
 862                 snd_pcm_group_for_each_entry(s, subs) {
 863                         stream = s->runtime->private_data;
 864                         stream->status = PCXHR_STREAM_STATUS_SCHEDULE_STOP;
 865                         if (pcxhr_set_stream_state(chip, stream))
 866                                 return -EINVAL;
 867                         snd_pcm_trigger_done(s, subs);
 868                 }
 869                 break;
 870         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 871         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 872                 /* TODO */
 873         default:
 874                 return -EINVAL;
 875         }
 876         return 0;
 877 }
 878 
 879 
 880 static int pcxhr_hardware_timer(struct pcxhr_mgr *mgr, int start)
 881 {
 882         struct pcxhr_rmh rmh;
 883         int err;
 884 
 885         pcxhr_init_rmh(&rmh, CMD_SET_TIMER_INTERRUPT);
 886         if (start) {
 887                 /* last dsp time invalid */
 888                 mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID;
 889                 rmh.cmd[0] |= mgr->granularity;
 890         }
 891         err = pcxhr_send_msg(mgr, &rmh);
 892         if (err < 0)
 893                 dev_err(&mgr->pci->dev, "error pcxhr_hardware_timer err(%x)\n",
 894                            err);
 895         return err;
 896 }
 897 
 898 /*
 899  *  prepare callback for all pcms
 900  */
 901 static int pcxhr_prepare(struct snd_pcm_substream *subs)
 902 {
 903         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 904         struct pcxhr_mgr *mgr = chip->mgr;
 905         int err = 0;
 906 
 907         dev_dbg(chip->card->dev,
 908                 "pcxhr_prepare : period_size(%lx) periods(%x) buffer_size(%lx)\n",
 909                     subs->runtime->period_size, subs->runtime->periods,
 910                     subs->runtime->buffer_size);
 911 
 912         mutex_lock(&mgr->setup_mutex);
 913 
 914         do {
 915                 /* only the first stream can choose the sample rate */
 916                 /* set the clock only once (first stream) */
 917                 if (mgr->sample_rate != subs->runtime->rate) {
 918                         err = pcxhr_set_clock(mgr, subs->runtime->rate);
 919                         if (err)
 920                                 break;
 921                         if (mgr->sample_rate == 0)
 922                                 /* start the DSP-timer */
 923                                 err = pcxhr_hardware_timer(mgr, 1);
 924                         mgr->sample_rate = subs->runtime->rate;
 925                 }
 926         } while(0);     /* do only once (so we can use break instead of goto) */
 927 
 928         mutex_unlock(&mgr->setup_mutex);
 929 
 930         return err;
 931 }
 932 
 933 
 934 /*
 935  *  HW_PARAMS callback for all pcms
 936  */
 937 static int pcxhr_hw_params(struct snd_pcm_substream *subs,
 938                            struct snd_pcm_hw_params *hw)
 939 {
 940         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 941         struct pcxhr_mgr *mgr = chip->mgr;
 942         struct pcxhr_stream *stream = subs->runtime->private_data;
 943         snd_pcm_format_t format;
 944         int err;
 945         int channels;
 946 
 947         /* set up channels */
 948         channels = params_channels(hw);
 949 
 950         /*  set up format for the stream */
 951         format = params_format(hw);
 952 
 953         mutex_lock(&mgr->setup_mutex);
 954 
 955         stream->channels = channels;
 956         stream->format = format;
 957 
 958         /* allocate buffer */
 959         err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
 960 
 961         mutex_unlock(&mgr->setup_mutex);
 962 
 963         return err;
 964 }
 965 
 966 static int pcxhr_hw_free(struct snd_pcm_substream *subs)
 967 {
 968         snd_pcm_lib_free_pages(subs);
 969         return 0;
 970 }
 971 
 972 
 973 /*
 974  *  CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
 975  */
 976 static const struct snd_pcm_hardware pcxhr_caps =
 977 {
 978         .info             = (SNDRV_PCM_INFO_MMAP |
 979                              SNDRV_PCM_INFO_INTERLEAVED |
 980                              SNDRV_PCM_INFO_MMAP_VALID |
 981                              SNDRV_PCM_INFO_SYNC_START),
 982         .formats          = (SNDRV_PCM_FMTBIT_U8 |
 983                              SNDRV_PCM_FMTBIT_S16_LE |
 984                              SNDRV_PCM_FMTBIT_S16_BE |
 985                              SNDRV_PCM_FMTBIT_S24_3LE |
 986                              SNDRV_PCM_FMTBIT_S24_3BE |
 987                              SNDRV_PCM_FMTBIT_FLOAT_LE),
 988         .rates            = (SNDRV_PCM_RATE_CONTINUOUS |
 989                              SNDRV_PCM_RATE_8000_192000),
 990         .rate_min         = 8000,
 991         .rate_max         = 192000,
 992         .channels_min     = 1,
 993         .channels_max     = 2,
 994         .buffer_bytes_max = (32*1024),
 995         /* 1 byte == 1 frame U8 mono (PCXHR_GRANULARITY is frames!) */
 996         .period_bytes_min = (2*PCXHR_GRANULARITY),
 997         .period_bytes_max = (16*1024),
 998         .periods_min      = 2,
 999         .periods_max      = (32*1024/PCXHR_GRANULARITY),
1000 };
1001 
1002 
1003 static int pcxhr_open(struct snd_pcm_substream *subs)
1004 {
1005         struct snd_pcxhr       *chip = snd_pcm_substream_chip(subs);
1006         struct pcxhr_mgr       *mgr = chip->mgr;
1007         struct snd_pcm_runtime *runtime = subs->runtime;
1008         struct pcxhr_stream    *stream;
1009         int err;
1010 
1011         mutex_lock(&mgr->setup_mutex);
1012 
1013         /* copy the struct snd_pcm_hardware struct */
1014         runtime->hw = pcxhr_caps;
1015 
1016         if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK ) {
1017                 dev_dbg(chip->card->dev, "pcxhr_open playback chip%d subs%d\n",
1018                             chip->chip_idx, subs->number);
1019                 stream = &chip->playback_stream[subs->number];
1020         } else {
1021                 dev_dbg(chip->card->dev, "pcxhr_open capture chip%d subs%d\n",
1022                             chip->chip_idx, subs->number);
1023                 if (mgr->mono_capture)
1024                         runtime->hw.channels_max = 1;
1025                 else
1026                         runtime->hw.channels_min = 2;
1027                 stream = &chip->capture_stream[subs->number];
1028         }
1029         if (stream->status != PCXHR_STREAM_STATUS_FREE){
1030                 /* streams in use */
1031                 dev_err(chip->card->dev, "pcxhr_open chip%d subs%d in use\n",
1032                            chip->chip_idx, subs->number);
1033                 mutex_unlock(&mgr->setup_mutex);
1034                 return -EBUSY;
1035         }
1036 
1037         /* float format support is in some cases buggy on stereo cards */
1038         if (mgr->is_hr_stereo)
1039                 runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_FLOAT_LE;
1040 
1041         /* buffer-size should better be multiple of period-size */
1042         err = snd_pcm_hw_constraint_integer(runtime,
1043                                             SNDRV_PCM_HW_PARAM_PERIODS);
1044         if (err < 0) {
1045                 mutex_unlock(&mgr->setup_mutex);
1046                 return err;
1047         }
1048 
1049         /* if a sample rate is already used or fixed by external clock,
1050          * the stream cannot change
1051          */
1052         if (mgr->sample_rate)
1053                 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
1054         else {
1055                 if (mgr->use_clock_type != PCXHR_CLOCK_TYPE_INTERNAL) {
1056                         int external_rate;
1057                         if (pcxhr_get_external_clock(mgr, mgr->use_clock_type,
1058                                                      &external_rate) ||
1059                             external_rate == 0) {
1060                                 /* cannot detect the external clock rate */
1061                                 mutex_unlock(&mgr->setup_mutex);
1062                                 return -EBUSY;
1063                         }
1064                         runtime->hw.rate_min = external_rate;
1065                         runtime->hw.rate_max = external_rate;
1066                 }
1067         }
1068 
1069         stream->status      = PCXHR_STREAM_STATUS_OPEN;
1070         stream->substream   = subs;
1071         stream->channels    = 0; /* not configured yet */
1072 
1073         runtime->private_data = stream;
1074 
1075         /* better get a divisor of granularity values (96 or 192) */
1076         snd_pcm_hw_constraint_step(runtime, 0,
1077                                    SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32);
1078         snd_pcm_hw_constraint_step(runtime, 0,
1079                                    SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 32);
1080         snd_pcm_set_sync(subs);
1081 
1082         mgr->ref_count_rate++;
1083 
1084         mutex_unlock(&mgr->setup_mutex);
1085         return 0;
1086 }
1087 
1088 
1089 static int pcxhr_close(struct snd_pcm_substream *subs)
1090 {
1091         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
1092         struct pcxhr_mgr *mgr = chip->mgr;
1093         struct pcxhr_stream *stream = subs->runtime->private_data;
1094 
1095         mutex_lock(&mgr->setup_mutex);
1096 
1097         dev_dbg(chip->card->dev, "pcxhr_close chip%d subs%d\n",
1098                     chip->chip_idx, subs->number);
1099 
1100         /* sample rate released */
1101         if (--mgr->ref_count_rate == 0) {
1102                 mgr->sample_rate = 0;   /* the sample rate is no more locked */
1103                 pcxhr_hardware_timer(mgr, 0);   /* stop the DSP-timer */
1104         }
1105 
1106         stream->status    = PCXHR_STREAM_STATUS_FREE;
1107         stream->substream = NULL;
1108 
1109         mutex_unlock(&mgr->setup_mutex);
1110 
1111         return 0;
1112 }
1113 
1114 
1115 static snd_pcm_uframes_t pcxhr_stream_pointer(struct snd_pcm_substream *subs)
1116 {
1117         u_int32_t timer_period_frag;
1118         int timer_buf_periods;
1119         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
1120         struct snd_pcm_runtime *runtime = subs->runtime;
1121         struct pcxhr_stream *stream  = runtime->private_data;
1122 
1123         mutex_lock(&chip->mgr->lock);
1124 
1125         /* get the period fragment and the nb of periods in the buffer */
1126         timer_period_frag = stream->timer_period_frag;
1127         timer_buf_periods = stream->timer_buf_periods;
1128 
1129         mutex_unlock(&chip->mgr->lock);
1130 
1131         return (snd_pcm_uframes_t)((timer_buf_periods * runtime->period_size) +
1132                                    timer_period_frag);
1133 }
1134 
1135 
1136 static const struct snd_pcm_ops pcxhr_ops = {
1137         .open      = pcxhr_open,
1138         .close     = pcxhr_close,
1139         .ioctl     = snd_pcm_lib_ioctl,
1140         .prepare   = pcxhr_prepare,
1141         .hw_params = pcxhr_hw_params,
1142         .hw_free   = pcxhr_hw_free,
1143         .trigger   = pcxhr_trigger,
1144         .pointer   = pcxhr_stream_pointer,
1145 };
1146 
1147 /*
1148  */
1149 int pcxhr_create_pcm(struct snd_pcxhr *chip)
1150 {
1151         int err;
1152         struct snd_pcm *pcm;
1153         char name[32];
1154 
1155         snprintf(name, sizeof(name), "pcxhr %d", chip->chip_idx);
1156         if ((err = snd_pcm_new(chip->card, name, 0,
1157                                chip->nb_streams_play,
1158                                chip->nb_streams_capt, &pcm)) < 0) {
1159                 dev_err(chip->card->dev, "cannot create pcm %s\n", name);
1160                 return err;
1161         }
1162         pcm->private_data = chip;
1163 
1164         if (chip->nb_streams_play)
1165                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcxhr_ops);
1166         if (chip->nb_streams_capt)
1167                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcxhr_ops);
1168 
1169         pcm->info_flags = 0;
1170         pcm->nonatomic = true;
1171         strcpy(pcm->name, name);
1172 
1173         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1174                                               snd_dma_pci_data(chip->mgr->pci),
1175                                               32*1024, 32*1024);
1176         chip->pcm = pcm;
1177         return 0;
1178 }
1179 
1180 static int pcxhr_chip_free(struct snd_pcxhr *chip)
1181 {
1182         kfree(chip);
1183         return 0;
1184 }
1185 
1186 static int pcxhr_chip_dev_free(struct snd_device *device)
1187 {
1188         struct snd_pcxhr *chip = device->device_data;
1189         return pcxhr_chip_free(chip);
1190 }
1191 
1192 
1193 /*
1194  */
1195 static int pcxhr_create(struct pcxhr_mgr *mgr,
1196                         struct snd_card *card, int idx)
1197 {
1198         int err;
1199         struct snd_pcxhr *chip;
1200         static struct snd_device_ops ops = {
1201                 .dev_free = pcxhr_chip_dev_free,
1202         };
1203 
1204         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1205         if (!chip)
1206                 return -ENOMEM;
1207 
1208         chip->card = card;
1209         chip->chip_idx = idx;
1210         chip->mgr = mgr;
1211 
1212         if (idx < mgr->playback_chips)
1213                 /* stereo or mono streams */
1214                 chip->nb_streams_play = PCXHR_PLAYBACK_STREAMS;
1215 
1216         if (idx < mgr->capture_chips) {
1217                 if (mgr->mono_capture)
1218                         chip->nb_streams_capt = 2;      /* 2 mono streams */
1219                 else
1220                         chip->nb_streams_capt = 1;      /* or 1 stereo stream */
1221         }
1222 
1223         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1224                 pcxhr_chip_free(chip);
1225                 return err;
1226         }
1227 
1228         mgr->chip[idx] = chip;
1229 
1230         return 0;
1231 }
1232 
1233 /* proc interface */
1234 static void pcxhr_proc_info(struct snd_info_entry *entry,
1235                             struct snd_info_buffer *buffer)
1236 {
1237         struct snd_pcxhr *chip = entry->private_data;
1238         struct pcxhr_mgr *mgr = chip->mgr;
1239 
1240         snd_iprintf(buffer, "\n%s\n", mgr->name);
1241 
1242         /* stats available when embedded DSP is running */
1243         if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1244                 struct pcxhr_rmh rmh;
1245                 short ver_maj = (mgr->dsp_version >> 16) & 0xff;
1246                 short ver_min = (mgr->dsp_version >> 8) & 0xff;
1247                 short ver_build = mgr->dsp_version & 0xff;
1248                 snd_iprintf(buffer, "module version %s\n",
1249                             PCXHR_DRIVER_VERSION_STRING);
1250                 snd_iprintf(buffer, "dsp version %d.%d.%d\n",
1251                             ver_maj, ver_min, ver_build);
1252                 if (mgr->board_has_analog)
1253                         snd_iprintf(buffer, "analog io available\n");
1254                 else
1255                         snd_iprintf(buffer, "digital only board\n");
1256 
1257                 /* calc cpu load of the dsp */
1258                 pcxhr_init_rmh(&rmh, CMD_GET_DSP_RESOURCES);
1259                 if( ! pcxhr_send_msg(mgr, &rmh) ) {
1260                         int cur = rmh.stat[0];
1261                         int ref = rmh.stat[1];
1262                         if (ref > 0) {
1263                                 if (mgr->sample_rate_real != 0 &&
1264                                     mgr->sample_rate_real != 48000) {
1265                                         ref = (ref * 48000) /
1266                                           mgr->sample_rate_real;
1267                                         if (mgr->sample_rate_real >=
1268                                             PCXHR_IRQ_TIMER_FREQ)
1269                                                 ref *= 2;
1270                                 }
1271                                 cur = 100 - (100 * cur) / ref;
1272                                 snd_iprintf(buffer, "cpu load    %d%%\n", cur);
1273                                 snd_iprintf(buffer, "buffer pool %d/%d\n",
1274                                             rmh.stat[2], rmh.stat[3]);
1275                         }
1276                 }
1277                 snd_iprintf(buffer, "dma granularity : %d\n",
1278                             mgr->granularity);
1279                 snd_iprintf(buffer, "dsp time errors : %d\n",
1280                             mgr->dsp_time_err);
1281                 snd_iprintf(buffer, "dsp async pipe xrun errors : %d\n",
1282                             mgr->async_err_pipe_xrun);
1283                 snd_iprintf(buffer, "dsp async stream xrun errors : %d\n",
1284                             mgr->async_err_stream_xrun);
1285                 snd_iprintf(buffer, "dsp async last other error : %x\n",
1286                             mgr->async_err_other_last);
1287                 /* debug zone dsp */
1288                 rmh.cmd[0] = 0x4200 + PCXHR_SIZE_MAX_STATUS;
1289                 rmh.cmd_len = 1;
1290                 rmh.stat_len = PCXHR_SIZE_MAX_STATUS;
1291                 rmh.dsp_stat = 0;
1292                 rmh.cmd_idx = CMD_LAST_INDEX;
1293                 if( ! pcxhr_send_msg(mgr, &rmh) ) {
1294                         int i;
1295                         if (rmh.stat_len > 8)
1296                                 rmh.stat_len = 8;
1297                         for (i = 0; i < rmh.stat_len; i++)
1298                                 snd_iprintf(buffer, "debug[%02d] = %06x\n",
1299                                             i,  rmh.stat[i]);
1300                 }
1301         } else
1302                 snd_iprintf(buffer, "no firmware loaded\n");
1303         snd_iprintf(buffer, "\n");
1304 }
1305 static void pcxhr_proc_sync(struct snd_info_entry *entry,
1306                             struct snd_info_buffer *buffer)
1307 {
1308         struct snd_pcxhr *chip = entry->private_data;
1309         struct pcxhr_mgr *mgr = chip->mgr;
1310         static const char *textsHR22[3] = {
1311                 "Internal", "AES Sync", "AES 1"
1312         };
1313         static const char *textsPCXHR[7] = {
1314                 "Internal", "Word", "AES Sync",
1315                 "AES 1", "AES 2", "AES 3", "AES 4"
1316         };
1317         const char **texts;
1318         int max_clock;
1319         if (mgr->is_hr_stereo) {
1320                 texts = textsHR22;
1321                 max_clock = HR22_CLOCK_TYPE_MAX;
1322         } else {
1323                 texts = textsPCXHR;
1324                 max_clock = PCXHR_CLOCK_TYPE_MAX;
1325         }
1326 
1327         snd_iprintf(buffer, "\n%s\n", mgr->name);
1328         snd_iprintf(buffer, "Current Sample Clock\t: %s\n",
1329                     texts[mgr->cur_clock_type]);
1330         snd_iprintf(buffer, "Current Sample Rate\t= %d\n",
1331                     mgr->sample_rate_real);
1332         /* commands available when embedded DSP is running */
1333         if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1334                 int i, err, sample_rate;
1335                 for (i = 1; i <= max_clock; i++) {
1336                         err = pcxhr_get_external_clock(mgr, i, &sample_rate);
1337                         if (err)
1338                                 break;
1339                         snd_iprintf(buffer, "%s Clock\t\t= %d\n",
1340                                     texts[i], sample_rate);
1341                 }
1342         } else
1343                 snd_iprintf(buffer, "no firmware loaded\n");
1344         snd_iprintf(buffer, "\n");
1345 }
1346 
1347 static void pcxhr_proc_gpio_read(struct snd_info_entry *entry,
1348                                  struct snd_info_buffer *buffer)
1349 {
1350         struct snd_pcxhr *chip = entry->private_data;
1351         struct pcxhr_mgr *mgr = chip->mgr;
1352         /* commands available when embedded DSP is running */
1353         if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1354                 /* gpio ports on stereo boards only available */
1355                 int value = 0;
1356                 hr222_read_gpio(mgr, 1, &value);        /* GPI */
1357                 snd_iprintf(buffer, "GPI: 0x%x\n", value);
1358                 hr222_read_gpio(mgr, 0, &value);        /* GP0 */
1359                 snd_iprintf(buffer, "GPO: 0x%x\n", value);
1360         } else
1361                 snd_iprintf(buffer, "no firmware loaded\n");
1362         snd_iprintf(buffer, "\n");
1363 }
1364 static void pcxhr_proc_gpo_write(struct snd_info_entry *entry,
1365                                  struct snd_info_buffer *buffer)
1366 {
1367         struct snd_pcxhr *chip = entry->private_data;
1368         struct pcxhr_mgr *mgr = chip->mgr;
1369         char line[64];
1370         int value;
1371         /* commands available when embedded DSP is running */
1372         if (!(mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)))
1373                 return;
1374         while (!snd_info_get_line(buffer, line, sizeof(line))) {
1375                 if (sscanf(line, "GPO: 0x%x", &value) != 1)
1376                         continue;
1377                 hr222_write_gpo(mgr, value);    /* GP0 */
1378         }
1379 }
1380 
1381 /* Access to the results of the CMD_GET_TIME_CODE RMH */
1382 #define TIME_CODE_VALID_MASK    0x00800000
1383 #define TIME_CODE_NEW_MASK      0x00400000
1384 #define TIME_CODE_BACK_MASK     0x00200000
1385 #define TIME_CODE_WAIT_MASK     0x00100000
1386 
1387 /* Values for the CMD_MANAGE_SIGNAL RMH */
1388 #define MANAGE_SIGNAL_TIME_CODE 0x01
1389 #define MANAGE_SIGNAL_MIDI      0x02
1390 
1391 /* linear time code read proc*/
1392 static void pcxhr_proc_ltc(struct snd_info_entry *entry,
1393                            struct snd_info_buffer *buffer)
1394 {
1395         struct snd_pcxhr *chip = entry->private_data;
1396         struct pcxhr_mgr *mgr = chip->mgr;
1397         struct pcxhr_rmh rmh;
1398         unsigned int ltcHrs, ltcMin, ltcSec, ltcFrm;
1399         int err;
1400         /* commands available when embedded DSP is running */
1401         if (!(mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX))) {
1402                 snd_iprintf(buffer, "no firmware loaded\n");
1403                 return;
1404         }
1405         if (!mgr->capture_ltc) {
1406                 pcxhr_init_rmh(&rmh, CMD_MANAGE_SIGNAL);
1407                 rmh.cmd[0] |= MANAGE_SIGNAL_TIME_CODE;
1408                 err = pcxhr_send_msg(mgr, &rmh);
1409                 if (err) {
1410                         snd_iprintf(buffer, "ltc not activated (%d)\n", err);
1411                         return;
1412                 }
1413                 if (mgr->is_hr_stereo)
1414                         hr222_manage_timecode(mgr, 1);
1415                 else
1416                         pcxhr_write_io_num_reg_cont(mgr, REG_CONT_VALSMPTE,
1417                                                     REG_CONT_VALSMPTE, NULL);
1418                 mgr->capture_ltc = 1;
1419         }
1420         pcxhr_init_rmh(&rmh, CMD_GET_TIME_CODE);
1421         err = pcxhr_send_msg(mgr, &rmh);
1422         if (err) {
1423                 snd_iprintf(buffer, "ltc read error (err=%d)\n", err);
1424                 return ;
1425         }
1426         ltcHrs = 10*((rmh.stat[0] >> 8) & 0x3) + (rmh.stat[0] & 0xf);
1427         ltcMin = 10*((rmh.stat[1] >> 16) & 0x7) + ((rmh.stat[1] >> 8) & 0xf);
1428         ltcSec = 10*(rmh.stat[1] & 0x7) + ((rmh.stat[2] >> 16) & 0xf);
1429         ltcFrm = 10*((rmh.stat[2] >> 8) & 0x3) + (rmh.stat[2] & 0xf);
1430 
1431         snd_iprintf(buffer, "timecode: %02u:%02u:%02u-%02u\n",
1432                             ltcHrs, ltcMin, ltcSec, ltcFrm);
1433         snd_iprintf(buffer, "raw: 0x%04x%06x%06x\n", rmh.stat[0] & 0x00ffff,
1434                             rmh.stat[1] & 0xffffff, rmh.stat[2] & 0xffffff);
1435         /*snd_iprintf(buffer, "dsp ref time: 0x%06x%06x\n",
1436                             rmh.stat[3] & 0xffffff, rmh.stat[4] & 0xffffff);*/
1437         if (!(rmh.stat[0] & TIME_CODE_VALID_MASK)) {
1438                 snd_iprintf(buffer, "warning: linear timecode not valid\n");
1439         }
1440 }
1441 
1442 static void pcxhr_proc_init(struct snd_pcxhr *chip)
1443 {
1444         snd_card_ro_proc_new(chip->card, "info", chip, pcxhr_proc_info);
1445         snd_card_ro_proc_new(chip->card, "sync", chip, pcxhr_proc_sync);
1446         /* gpio available on stereo sound cards only */
1447         if (chip->mgr->is_hr_stereo)
1448                 snd_card_rw_proc_new(chip->card, "gpio", chip,
1449                                      pcxhr_proc_gpio_read,
1450                                      pcxhr_proc_gpo_write);
1451         snd_card_ro_proc_new(chip->card, "ltc", chip, pcxhr_proc_ltc);
1452 }
1453 /* end of proc interface */
1454 
1455 /*
1456  * release all the cards assigned to a manager instance
1457  */
1458 static int pcxhr_free(struct pcxhr_mgr *mgr)
1459 {
1460         unsigned int i;
1461 
1462         for (i = 0; i < mgr->num_cards; i++) {
1463                 if (mgr->chip[i])
1464                         snd_card_free(mgr->chip[i]->card);
1465         }
1466 
1467         /* reset board if some firmware was loaded */
1468         if(mgr->dsp_loaded) {
1469                 pcxhr_reset_board(mgr);
1470                 dev_dbg(&mgr->pci->dev, "reset pcxhr !\n");
1471         }
1472 
1473         /* release irq  */
1474         if (mgr->irq >= 0)
1475                 free_irq(mgr->irq, mgr);
1476 
1477         pci_release_regions(mgr->pci);
1478 
1479         /* free hostport purgebuffer */
1480         if (mgr->hostport.area) {
1481                 snd_dma_free_pages(&mgr->hostport);
1482                 mgr->hostport.area = NULL;
1483         }
1484 
1485         kfree(mgr->prmh);
1486 
1487         pci_disable_device(mgr->pci);
1488         kfree(mgr);
1489         return 0;
1490 }
1491 
1492 /*
1493  *    probe function - creates the card manager
1494  */
1495 static int pcxhr_probe(struct pci_dev *pci,
1496                        const struct pci_device_id *pci_id)
1497 {
1498         static int dev;
1499         struct pcxhr_mgr *mgr;
1500         unsigned int i;
1501         int err;
1502         size_t size;
1503         char *card_name;
1504 
1505         if (dev >= SNDRV_CARDS)
1506                 return -ENODEV;
1507         if (! enable[dev]) {
1508                 dev++;
1509                 return -ENOENT;
1510         }
1511 
1512         /* enable PCI device */
1513         if ((err = pci_enable_device(pci)) < 0)
1514                 return err;
1515         pci_set_master(pci);
1516 
1517         /* check if we can restrict PCI DMA transfers to 32 bits */
1518         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1519                 dev_err(&pci->dev,
1520                         "architecture does not support 32bit PCI busmaster DMA\n");
1521                 pci_disable_device(pci);
1522                 return -ENXIO;
1523         }
1524 
1525         /* alloc card manager */
1526         mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1527         if (! mgr) {
1528                 pci_disable_device(pci);
1529                 return -ENOMEM;
1530         }
1531 
1532         if (snd_BUG_ON(pci_id->driver_data >= PCI_ID_LAST)) {
1533                 kfree(mgr);
1534                 pci_disable_device(pci);
1535                 return -ENODEV;
1536         }
1537         card_name =
1538                 pcxhr_board_params[pci_id->driver_data].board_name;
1539         mgr->playback_chips =
1540                 pcxhr_board_params[pci_id->driver_data].playback_chips;
1541         mgr->capture_chips  =
1542                 pcxhr_board_params[pci_id->driver_data].capture_chips;
1543         mgr->fw_file_set =
1544                 pcxhr_board_params[pci_id->driver_data].fw_file_set;
1545         mgr->firmware_num  =
1546                 pcxhr_board_params[pci_id->driver_data].firmware_num;
1547         mgr->mono_capture = mono[dev];
1548         mgr->is_hr_stereo = (mgr->playback_chips == 1);
1549         mgr->board_has_aes1 = PCXHR_BOARD_HAS_AES1(mgr);
1550         mgr->board_aes_in_192k = !PCXHR_BOARD_AESIN_NO_192K(mgr);
1551 
1552         if (mgr->is_hr_stereo)
1553                 mgr->granularity = PCXHR_GRANULARITY_HR22;
1554         else
1555                 mgr->granularity = PCXHR_GRANULARITY;
1556 
1557         /* resource assignment */
1558         if ((err = pci_request_regions(pci, card_name)) < 0) {
1559                 kfree(mgr);
1560                 pci_disable_device(pci);
1561                 return err;
1562         }
1563         for (i = 0; i < 3; i++)
1564                 mgr->port[i] = pci_resource_start(pci, i);
1565 
1566         mgr->pci = pci;
1567         mgr->irq = -1;
1568 
1569         if (request_threaded_irq(pci->irq, pcxhr_interrupt,
1570                                  pcxhr_threaded_irq, IRQF_SHARED,
1571                                  KBUILD_MODNAME, mgr)) {
1572                 dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
1573                 pcxhr_free(mgr);
1574                 return -EBUSY;
1575         }
1576         mgr->irq = pci->irq;
1577 
1578         snprintf(mgr->name, sizeof(mgr->name),
1579                  "Digigram at 0x%lx & 0x%lx, 0x%lx irq %i",
1580                  mgr->port[0], mgr->port[1], mgr->port[2], mgr->irq);
1581 
1582         /* ISR lock  */
1583         mutex_init(&mgr->lock);
1584         mutex_init(&mgr->msg_lock);
1585 
1586         /* init setup mutex*/
1587         mutex_init(&mgr->setup_mutex);
1588 
1589         mgr->prmh = kmalloc(sizeof(*mgr->prmh) + 
1590                             sizeof(u32) * (PCXHR_SIZE_MAX_LONG_STATUS -
1591                                            PCXHR_SIZE_MAX_STATUS),
1592                             GFP_KERNEL);
1593         if (! mgr->prmh) {
1594                 pcxhr_free(mgr);
1595                 return -ENOMEM;
1596         }
1597 
1598         for (i=0; i < PCXHR_MAX_CARDS; i++) {
1599                 struct snd_card *card;
1600                 char tmpid[16];
1601                 int idx;
1602 
1603                 if (i >= max(mgr->playback_chips, mgr->capture_chips))
1604                         break;
1605                 mgr->num_cards++;
1606 
1607                 if (index[dev] < 0)
1608                         idx = index[dev];
1609                 else
1610                         idx = index[dev] + i;
1611 
1612                 snprintf(tmpid, sizeof(tmpid), "%s-%d",
1613                          id[dev] ? id[dev] : card_name, i);
1614                 err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
1615                                    0, &card);
1616 
1617                 if (err < 0) {
1618                         dev_err(&pci->dev, "cannot allocate the card %d\n", i);
1619                         pcxhr_free(mgr);
1620                         return err;
1621                 }
1622 
1623                 strcpy(card->driver, DRIVER_NAME);
1624                 snprintf(card->shortname, sizeof(card->shortname),
1625                          "Digigram [PCM #%d]", i);
1626                 snprintf(card->longname, sizeof(card->longname),
1627                          "%s [PCM #%d]", mgr->name, i);
1628 
1629                 if ((err = pcxhr_create(mgr, card, i)) < 0) {
1630                         snd_card_free(card);
1631                         pcxhr_free(mgr);
1632                         return err;
1633                 }
1634 
1635                 if (i == 0)
1636                         /* init proc interface only for chip0 */
1637                         pcxhr_proc_init(mgr->chip[i]);
1638 
1639                 if ((err = snd_card_register(card)) < 0) {
1640                         pcxhr_free(mgr);
1641                         return err;
1642                 }
1643         }
1644 
1645         /* create hostport purgebuffer */
1646         size = PAGE_ALIGN(sizeof(struct pcxhr_hostport));
1647         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1648                                 size, &mgr->hostport) < 0) {
1649                 pcxhr_free(mgr);
1650                 return -ENOMEM;
1651         }
1652         /* init purgebuffer */
1653         memset(mgr->hostport.area, 0, size);
1654 
1655         /* create a DSP loader */
1656         err = pcxhr_setup_firmware(mgr);
1657         if (err < 0) {
1658                 pcxhr_free(mgr);
1659                 return err;
1660         }
1661 
1662         pci_set_drvdata(pci, mgr);
1663         dev++;
1664         return 0;
1665 }
1666 
1667 static void pcxhr_remove(struct pci_dev *pci)
1668 {
1669         pcxhr_free(pci_get_drvdata(pci));
1670 }
1671 
1672 static struct pci_driver pcxhr_driver = {
1673         .name = KBUILD_MODNAME,
1674         .id_table = pcxhr_ids,
1675         .probe = pcxhr_probe,
1676         .remove = pcxhr_remove,
1677 };
1678 
1679 module_pci_driver(pcxhr_driver);

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