release/src-rt-6.x/linux/linux-2.6/sound/drivers/vx/vx_hwdep.c

   1 /*
   2  * Driver for Digigram VX soundcards
   3  *
   4  * DSP firmware management
   5  *
   6  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22
  23 #include <sound/driver.h>
  24 #include <linux/device.h>
  25 #include <linux/firmware.h>
  26 #include <linux/vmalloc.h>
  27 #include <sound/core.h>
  28 #include <sound/hwdep.h>
  29 #include <sound/vx_core.h>
  30
  31 #ifdef SND_VX_FW_LOADER
  32
  33 MODULE_FIRMWARE("vx/bx_1_vxp.b56");
  34 MODULE_FIRMWARE("vx/bx_1_vp4.b56");
  35 MODULE_FIRMWARE("vx/x1_1_vx2.xlx");
  36 MODULE_FIRMWARE("vx/x1_2_v22.xlx");
  37 MODULE_FIRMWARE("vx/x1_1_vxp.xlx");
  38 MODULE_FIRMWARE("vx/x1_1_vp4.xlx");
  39 MODULE_FIRMWARE("vx/bd56002.boot");
  40 MODULE_FIRMWARE("vx/bd563v2.boot");
  41 MODULE_FIRMWARE("vx/bd563s3.boot");
  42 MODULE_FIRMWARE("vx/l_1_vx2.d56");
  43 MODULE_FIRMWARE("vx/l_1_v22.d56");
  44 MODULE_FIRMWARE("vx/l_1_vxp.d56");
  45 MODULE_FIRMWARE("vx/l_1_vp4.d56");
  46
  47 int snd_vx_setup_firmware(struct vx_core *chip)
  48 {
  49         static char *fw_files[VX_TYPE_NUMS][4] = {
  50                 [VX_TYPE_BOARD] = {
  51                         NULL, "x1_1_vx2.xlx", "bd56002.boot", "l_1_vx2.d56",
  52                 },
  53                 [VX_TYPE_V2] = {
  54                         NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  55                 },
  56                 [VX_TYPE_MIC] = {
  57                         NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  58                 },
  59                 [VX_TYPE_VXPOCKET] = {
  60                         "bx_1_vxp.b56", "x1_1_vxp.xlx", "bd563s3.boot", "l_1_vxp.d56"
  61                 },
  62                 [VX_TYPE_VXP440] = {
  63                         "bx_1_vp4.b56", "x1_1_vp4.xlx", "bd563s3.boot", "l_1_vp4.d56"
  64                 },
  65         };
  66
  67         int i, err;
  68
  69         for (i = 0; i < 4; i++) {
  70                 char path[32];
  71                 const struct firmware *fw;
  72                 if (! fw_files[chip->type][i])
  73                         continue;
  74                 sprintf(path, "vx/%s", fw_files[chip->type][i]);
  75                 if (request_firmware(&fw, path, chip->dev)) {
  76                         snd_printk(KERN_ERR "vx: can't load firmware %s\n", path);
  77                         return -ENOENT;
  78                 }
  79                 err = chip->ops->load_dsp(chip, i, fw);
  80                 if (err < 0) {
  81                         release_firmware(fw);
  82                         return err;
  83                 }
  84                 if (i == 1)
  85                         chip->chip_status |= VX_STAT_XILINX_LOADED;
  86 #ifdef CONFIG_PM
  87                 chip->firmware[i] = fw;
  88 #else
  89                 release_firmware(fw);
  90 #endif
  91         }
  92
  93         /* ok, we reached to the last one */
  94         /* create the devices if not built yet */
  95         if ((err = snd_vx_pcm_new(chip)) < 0)
  96                 return err;
  97
  98         if ((err = snd_vx_mixer_new(chip)) < 0)
  99                 return err;
 100
 101         if (chip->ops->add_controls)
 102                 if ((err = chip->ops->add_controls(chip)) < 0)
 103                         return err;
 104
 105         chip->chip_status |= VX_STAT_DEVICE_INIT;
 106         chip->chip_status |= VX_STAT_CHIP_INIT;
 107
 108         return snd_card_register(chip->card);
 109 }
 110
 111 /* exported */
 112 void snd_vx_free_firmware(struct vx_core *chip)
 113 {
 114 #ifdef CONFIG_PM
 115         int i;
 116         for (i = 0; i < 4; i++)
 117                 release_firmware(chip->firmware[i]);
 118 #endif
 119 }
 120
 121 #else /* old style firmware loading */
 122
 123 static int vx_hwdep_open(struct snd_hwdep *hw, struct file *file)
 124 {
 125         return 0;
 126 }
 127
 128 static int vx_hwdep_release(struct snd_hwdep *hw, struct file *file)
 129 {
 130         return 0;
 131 }
 132
 133 static int vx_hwdep_dsp_status(struct snd_hwdep *hw,
 134                                struct snd_hwdep_dsp_status *info)
 135 {
 136         static char *type_ids[VX_TYPE_NUMS] = {
 137                 [VX_TYPE_BOARD] = "vxboard",
 138                 [VX_TYPE_V2] = "vx222",
 139                 [VX_TYPE_MIC] = "vx222",
 140                 [VX_TYPE_VXPOCKET] = "vxpocket",
 141                 [VX_TYPE_VXP440] = "vxp440",
 142         };
 143         struct vx_core *vx = hw->private_data;
 144
 145         snd_assert(type_ids[vx->type], return -EINVAL);
 146         strcpy(info->id, type_ids[vx->type]);
 147         if (vx_is_pcmcia(vx))
 148                 info->num_dsps = 4;
 149         else
 150                 info->num_dsps = 3;
 151         if (vx->chip_status & VX_STAT_CHIP_INIT)
 152                 info->chip_ready = 1;
 153         info->version = VX_DRIVER_VERSION;
 154         return 0;
 155 }
 156
 157 static void free_fw(const struct firmware *fw)
 158 {
 159         if (fw) {
 160                 vfree(fw->data);
 161                 kfree(fw);
 162         }
 163 }
 164
 165 static int vx_hwdep_dsp_load(struct snd_hwdep *hw,
 166                              struct snd_hwdep_dsp_image *dsp)
 167 {
 168         struct vx_core *vx = hw->private_data;
 169         int index, err;
 170         struct firmware *fw;
 171
 172         snd_assert(vx->ops->load_dsp, return -ENXIO);
 173
 174         fw = kmalloc(sizeof(*fw), GFP_KERNEL);
 175         if (! fw) {
 176                 snd_printk(KERN_ERR "cannot allocate firmware\n");
 177                 return -ENOMEM;
 178         }
 179         fw->size = dsp->length;
 180         fw->data = vmalloc(fw->size);
 181         if (! fw->data) {
 182                 snd_printk(KERN_ERR "cannot allocate firmware image (length=%d)\n",
 183                            (int)fw->size);
 184                 kfree(fw);
 185                 return -ENOMEM;
 186         }
 187         if (copy_from_user(fw->data, dsp->image, dsp->length)) {
 188                 free_fw(fw);
 189                 return -EFAULT;
 190         }
 191
 192         index = dsp->index;
 193         if (! vx_is_pcmcia(vx))
 194                 index++;
 195         err = vx->ops->load_dsp(vx, index, fw);
 196         if (err < 0) {
 197                 free_fw(fw);
 198                 return err;
 199         }
 200 #ifdef CONFIG_PM
 201         vx->firmware[index] = fw;
 202 #else
 203         free_fw(fw);
 204 #endif
 205
 206         if (index == 1)
 207                 vx->chip_status |= VX_STAT_XILINX_LOADED;
 208         if (index < 3)
 209                 return 0;
 210
 211         /* ok, we reached to the last one */
 212         /* create the devices if not built yet */
 213         if (! (vx->chip_status & VX_STAT_DEVICE_INIT)) {
 214                 if ((err = snd_vx_pcm_new(vx)) < 0)
 215                         return err;
 216
 217                 if ((err = snd_vx_mixer_new(vx)) < 0)
 218                         return err;
 219
 220                 if (vx->ops->add_controls)
 221                         if ((err = vx->ops->add_controls(vx)) < 0)
 222                                 return err;
 223
 224                 if ((err = snd_card_register(vx->card)) < 0)
 225                         return err;
 226
 227                 vx->chip_status |= VX_STAT_DEVICE_INIT;
 228         }
 229         vx->chip_status |= VX_STAT_CHIP_INIT;
 230         return 0;
 231 }
 232
 233
 234 /* exported */
 235 int snd_vx_setup_firmware(struct vx_core *chip)
 236 {
 237         int err;
 238         struct snd_hwdep *hw;
 239
 240         if ((err = snd_hwdep_new(chip->card, SND_VX_HWDEP_ID, 0, &hw)) < 0)
 241                 return err;
 242
 243         hw->iface = SNDRV_HWDEP_IFACE_VX;
 244         hw->private_data = chip;
 245         hw->ops.open = vx_hwdep_open;
 246         hw->ops.release = vx_hwdep_release;
 247         hw->ops.dsp_status = vx_hwdep_dsp_status;
 248         hw->ops.dsp_load = vx_hwdep_dsp_load;
 249         hw->exclusive = 1;
 250         sprintf(hw->name, "VX Loader (%s)", chip->card->driver);
 251         chip->hwdep = hw;
 252
 253         return snd_card_register(chip->card);
 254 }
 255
 256 /* exported */
 257 void snd_vx_free_firmware(struct vx_core *chip)
 258 {
 259 #ifdef CONFIG_PM
 260         int i;
 261         for (i = 0; i < 4; i++)
 262                 free_fw(chip->firmware[i]);
 263 #endif
 264 }
 265
 266 #endif /* SND_VX_FW_LOADER */
 267
 268 EXPORT_SYMBOL(snd_vx_setup_firmware);
 269 EXPORT_SYMBOL(snd_vx_free_firmware);