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 int snd_vx_setup_firmware(vx_core_t *chip)
  34 {
  35         static char *fw_files[VX_TYPE_NUMS][4] = {
  36                 [VX_TYPE_BOARD] = {
  37                         NULL, "x1_1_vx2.xlx", "bd56002.boot", "l_1_vx2.d56",
  38                 },
  39                 [VX_TYPE_V2] = {
  40                         NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  41                 },
  42                 [VX_TYPE_MIC] = {
  43                         NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  44                 },
  45                 [VX_TYPE_VXPOCKET] = {
  46                         "bx_1_vxp.b56", "x1_1_vxp.xlx", "bd563s3.boot", "l_1_vxp.d56"
  47                 },
  48                 [VX_TYPE_VXP440] = {
  49                         "bx_1_vp4.b56", "x1_1_vp4.xlx", "bd563s3.boot", "l_1_vp4.d56"
  50                 },
  51         };
  52
  53         int i, err;
  54
  55         for (i = 0; i < 4; i++) {
  56                 char path[32];
  57                 const struct firmware *fw;
  58                 if (! fw_files[chip->type][i])
  59                         continue;
  60                 sprintf(path, "vx/%s", fw_files[chip->type][i]);
  61                 if (request_firmware(&fw, path, chip->dev)) {
  62                         snd_printk(KERN_ERR "vx: can't load firmware %s\n", path);
  63                         return -ENOENT;
  64                 }
  65                 err = chip->ops->load_dsp(chip, i, fw);
  66                 if (err < 0) {
  67                         release_firmware(fw);
  68                         return err;
  69                 }
  70                 if (i == 1)
  71                         chip->chip_status |= VX_STAT_XILINX_LOADED;
  72 #ifdef CONFIG_PM
  73                 chip->firmware[i] = fw;
  74 #else
  75                 release_firmware(fw);
  76 #endif
  77         }
  78
  79         /* ok, we reached to the last one */
  80         /* create the devices if not built yet */
  81         if ((err = snd_vx_pcm_new(chip)) < 0)
  82                 return err;
  83
  84         if ((err = snd_vx_mixer_new(chip)) < 0)
  85                 return err;
  86
  87         if (chip->ops->add_controls)
  88                 if ((err = chip->ops->add_controls(chip)) < 0)
  89                         return err;
  90
  91         chip->chip_status |= VX_STAT_DEVICE_INIT;
  92         chip->chip_status |= VX_STAT_CHIP_INIT;
  93
  94         return snd_card_register(chip->card);
  95 }
  96
  97 /* exported */
  98 void snd_vx_free_firmware(vx_core_t *chip)
  99 {
 100 #ifdef CONFIG_PM
 101         int i;
 102         for (i = 0; i < 4; i++)
 103                 release_firmware(chip->firmware[i]);
 104 #endif
 105 }
 106
 107 #else /* old style firmware loading */
 108
 109 static int vx_hwdep_open(snd_hwdep_t *hw, struct file *file)
 110 {
 111         return 0;
 112 }
 113
 114 static int vx_hwdep_release(snd_hwdep_t *hw, struct file *file)
 115 {
 116         return 0;
 117 }
 118
 119 static int vx_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *info)
 120 {
 121         static char *type_ids[VX_TYPE_NUMS] = {
 122                 [VX_TYPE_BOARD] = "vxboard",
 123                 [VX_TYPE_V2] = "vx222",
 124                 [VX_TYPE_MIC] = "vx222",
 125                 [VX_TYPE_VXPOCKET] = "vxpocket",
 126                 [VX_TYPE_VXP440] = "vxp440",
 127         };
 128         vx_core_t *vx = hw->private_data;
 129
 130         snd_assert(type_ids[vx->type], return -EINVAL);
 131         strcpy(info->id, type_ids[vx->type]);
 132         if (vx_is_pcmcia(vx))
 133                 info->num_dsps = 4;
 134         else
 135                 info->num_dsps = 3;
 136         if (vx->chip_status & VX_STAT_CHIP_INIT)
 137                 info->chip_ready = 1;
 138         info->version = VX_DRIVER_VERSION;
 139         return 0;
 140 }
 141
 142 static void free_fw(const struct firmware *fw)
 143 {
 144         if (fw) {
 145                 vfree(fw->data);
 146                 kfree(fw);
 147         }
 148 }
 149
 150 static int vx_hwdep_dsp_load(snd_hwdep_t *hw, snd_hwdep_dsp_image_t *dsp)
 151 {
 152         vx_core_t *vx = hw->private_data;
 153         int index, err;
 154         struct firmware *fw;
 155
 156         snd_assert(vx->ops->load_dsp, return -ENXIO);
 157
 158         fw = kmalloc(sizeof(*fw), GFP_KERNEL);
 159         if (! fw) {
 160                 snd_printk(KERN_ERR "cannot allocate firmware\n");
 161                 return -ENOMEM;
 162         }
 163         fw->size = dsp->length;
 164         fw->data = vmalloc(fw->size);
 165         if (! fw->data) {
 166                 snd_printk(KERN_ERR "cannot allocate firmware image (length=%d)\n",
 167                            (int)fw->size);
 168                 kfree(fw);
 169                 return -ENOMEM;
 170         }
 171         if (copy_from_user(fw->data, dsp->image, dsp->length)) {
 172                 free_fw(fw);
 173                 return -EFAULT;
 174         }
 175
 176         index = dsp->index;
 177         if (! vx_is_pcmcia(vx))
 178                 index++;
 179         err = vx->ops->load_dsp(vx, index, fw);
 180         if (err < 0) {
 181                 free_fw(fw);
 182                 return err;
 183         }
 184 #ifdef CONFIG_PM
 185         vx->firmware[index] = fw;
 186 #else
 187         free_fw(fw);
 188 #endif
 189
 190         if (index == 1)
 191                 vx->chip_status |= VX_STAT_XILINX_LOADED;
 192         if (index < 3)
 193                 return 0;
 194
 195         /* ok, we reached to the last one */
 196         /* create the devices if not built yet */
 197         if (! (vx->chip_status & VX_STAT_DEVICE_INIT)) {
 198                 if ((err = snd_vx_pcm_new(vx)) < 0)
 199                         return err;
 200
 201                 if ((err = snd_vx_mixer_new(vx)) < 0)
 202                         return err;
 203
 204                 if (vx->ops->add_controls)
 205                         if ((err = vx->ops->add_controls(vx)) < 0)
 206                                 return err;
 207
 208                 if ((err = snd_card_register(vx->card)) < 0)
 209                         return err;
 210
 211                 vx->chip_status |= VX_STAT_DEVICE_INIT;
 212         }
 213         vx->chip_status |= VX_STAT_CHIP_INIT;
 214         return 0;
 215 }
 216
 217
 218 /* exported */
 219 int snd_vx_setup_firmware(vx_core_t *chip)
 220 {
 221         int err;
 222         snd_hwdep_t *hw;
 223
 224         if ((err = snd_hwdep_new(chip->card, SND_VX_HWDEP_ID, 0, &hw)) < 0)
 225                 return err;
 226
 227         hw->iface = SNDRV_HWDEP_IFACE_VX;
 228         hw->private_data = chip;
 229         hw->ops.open = vx_hwdep_open;
 230         hw->ops.release = vx_hwdep_release;
 231         hw->ops.dsp_status = vx_hwdep_dsp_status;
 232         hw->ops.dsp_load = vx_hwdep_dsp_load;
 233         hw->exclusive = 1;
 234         sprintf(hw->name, "VX Loader (%s)", chip->card->driver);
 235         chip->hwdep = hw;
 236
 237         return snd_card_register(chip->card);
 238 }
 239
 240 /* exported */
 241 void snd_vx_free_firmware(vx_core_t *chip)
 242 {
 243 #ifdef CONFIG_PM
 244         int i;
 245         for (i = 0; i < 4; i++)
 246                 free_fw(chip->firmware[i]);
 247 #endif
 248 }
 249
 250 #endif /* SND_VX_FW_LOADER */