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 <sound/core.h>
  27 #include <sound/hwdep.h>
  28 #include <sound/vx_core.h>
  29
  30 #ifdef SND_VX_FW_LOADER
  31
  32 int snd_vx_setup_firmware(vx_core_t *chip)
  33 {
  34         static char *fw_files[VX_TYPE_NUMS][4] = {
  35                 [VX_TYPE_BOARD] = {
  36                         NULL, "x1_1_vx2.xlx", "bd56002.boot", "l_1_vx2.d56",
  37                 },
  38                 [VX_TYPE_V2] = {
  39                         NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  40                 },
  41                 [VX_TYPE_MIC] = {
  42                         NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  43                 },
  44                 [VX_TYPE_VXPOCKET] = {
  45                         "bx_1_vxp.b56", "x1_1_vxp.xlx", "bd563s3.boot", "l_1_vxp.d56"
  46                 },
  47                 [VX_TYPE_VXP440] = {
  48                         "bx_1_vp4.b56", "x1_1_vp4.xlx", "bd563s3.boot", "l_1_vp4.d56"
  49                 },
  50         };
  51
  52         int i, err;
  53
  54         for (i = 0; i < 4; i++) {
  55                 char path[32];
  56                 const struct firmware *fw;
  57                 if (! fw_files[chip->type][i])
  58                         continue;
  59                 sprintf(path, "vx/%s", fw_files[chip->type][i]);
  60                 if (request_firmware(&fw, path, chip->dev)) {
  61                         snd_printk(KERN_ERR "vx: can't load firmware %s\n", path);
  62                         return -ENOENT;
  63                 }
  64                 err = chip->ops->load_dsp(chip, i, fw);
  65                 if (err < 0) {
  66                         release_firmware(fw);
  67                         return err;
  68                 }
  69                 if (i == 1)
  70                         chip->chip_status |= VX_STAT_XILINX_LOADED;
  71 #ifdef CONFIG_PM
  72                 chip->firmware[i] = fw;
  73 #else
  74                 release_firmware(fw);
  75 #endif
  76         }
  77
  78         /* ok, we reached to the last one */
  79         /* create the devices if not built yet */
  80         if ((err = snd_vx_pcm_new(chip)) < 0)
  81                 return err;
  82
  83         if ((err = snd_vx_mixer_new(chip)) < 0)
  84                 return err;
  85
  86         if (chip->ops->add_controls)
  87                 if ((err = chip->ops->add_controls(chip)) < 0)
  88                         return err;
  89
  90         chip->chip_status |= VX_STAT_DEVICE_INIT;
  91         chip->chip_status |= VX_STAT_CHIP_INIT;
  92
  93         return snd_card_register(chip->card);
  94 }
  95
  96 /* exported */
  97 void snd_vx_free_firmware(vx_core_t *chip)
  98 {
  99 #ifdef CONFIG_PM
 100         int i;
 101         for (i = 0; i < 4; i++)
 102                 release_firmware(chip->firmware[i]);
 103 #endif
 104 }
 105
 106 #else /* old style firmware loading */
 107
 108 static int vx_hwdep_open(snd_hwdep_t *hw, struct file *file)
 109 {
 110         return 0;
 111 }
 112
 113 static int vx_hwdep_release(snd_hwdep_t *hw, struct file *file)
 114 {
 115         return 0;
 116 }
 117
 118 static int vx_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *info)
 119 {
 120         static char *type_ids[VX_TYPE_NUMS] = {
 121                 [VX_TYPE_BOARD] = "vxboard",
 122                 [VX_TYPE_V2] = "vx222",
 123                 [VX_TYPE_MIC] = "vx222",
 124                 [VX_TYPE_VXPOCKET] = "vxpocket",
 125                 [VX_TYPE_VXP440] = "vxp440",
 126         };
 127         vx_core_t *vx = hw->private_data;
 128
 129         snd_assert(type_ids[vx->type], return -EINVAL);
 130         strcpy(info->id, type_ids[vx->type]);
 131         if (vx_is_pcmcia(vx))
 132                 info->num_dsps = 4;
 133         else
 134                 info->num_dsps = 3;
 135         if (vx->chip_status & VX_STAT_CHIP_INIT)
 136                 info->chip_ready = 1;
 137         info->version = VX_DRIVER_VERSION;
 138         return 0;
 139 }
 140
 141 static void free_fw(const struct firmware *fw)
 142 {
 143         if (fw) {
 144                 vfree(fw->data);
 145                 kfree(fw);
 146         }
 147 }
 148
 149 static int vx_hwdep_dsp_load(snd_hwdep_t *hw, snd_hwdep_dsp_image_t *dsp)
 150 {
 151         vx_core_t *vx = hw->private_data;
 152         int index, err;
 153         struct firmware *fw;
 154
 155         snd_assert(vx->ops->load_dsp, return -ENXIO);
 156
 157         fw = kmalloc(sizeof(*fw), GFP_KERNEL);
 158         if (! fw) {
 159                 snd_printk(KERN_ERR "cannot allocate firmware\n");
 160                 return -ENOMEM;
 161         }
 162         fw->size = dsp->length;
 163         fw->data = vmalloc(fw->size);
 164         if (! fw->data) {
 165                 snd_printk(KERN_ERR "cannot allocate firmware image (length=%d)\n",
 166                            (int)fw->size);
 167                 kfree(fw);
 168                 return -ENOMEM;
 169         }
 170         if (copy_from_user(fw->data, dsp->image, dsp->length)) {
 171                 free_fw(fw);
 172                 return -EFAULT;
 173         }
 174
 175         index = dsp->index;
 176         if (! vx_is_pcmcia(vx))
 177                 index++;
 178         err = vx->ops->load_dsp(vx, index, fw);
 179         if (err < 0) {
 180                 free_fw(fw);
 181                 return err;
 182         }
 183 #ifdef CONFIG_PM
 184         vx->firmware[index] = fw;
 185 #else
 186         free_fw(fw);
 187 #endif
 188
 189         if (index == 1)
 190                 vx->chip_status |= VX_STAT_XILINX_LOADED;
 191         if (index < 3)
 192                 return 0;
 193
 194         /* ok, we reached to the last one */
 195         /* create the devices if not built yet */
 196         if (! (vx->chip_status & VX_STAT_DEVICE_INIT)) {
 197                 if ((err = snd_vx_pcm_new(vx)) < 0)
 198                         return err;
 199
 200                 if ((err = snd_vx_mixer_new(vx)) < 0)
 201                         return err;
 202
 203                 if (vx->ops->add_controls)
 204                         if ((err = vx->ops->add_controls(vx)) < 0)
 205                                 return err;
 206
 207                 if ((err = snd_card_register(vx->card)) < 0)
 208                         return err;
 209
 210                 vx->chip_status |= VX_STAT_DEVICE_INIT;
 211         }
 212         vx->chip_status |= VX_STAT_CHIP_INIT;
 213         return 0;
 214 }
 215
 216
 217 /* exported */
 218 int snd_vx_setup_firmware(vx_core_t *chip)
 219 {
 220         int err;
 221         snd_hwdep_t *hw;
 222
 223         if ((err = snd_hwdep_new(chip->card, SND_VX_HWDEP_ID, 0, &hw)) < 0)
 224                 return err;
 225
 226         hw->iface = SNDRV_HWDEP_IFACE_VX;
 227         hw->private_data = chip;
 228         hw->ops.open = vx_hwdep_open;
 229         hw->ops.release = vx_hwdep_release;
 230         hw->ops.dsp_status = vx_hwdep_dsp_status;
 231         hw->ops.dsp_load = vx_hwdep_dsp_load;
 232         hw->exclusive = 1;
 233         sprintf(hw->name, "VX Loader (%s)", chip->card->driver);
 234         chip->hwdep = hw;
 235
 236         return snd_card_register(chip->card);
 237 }
 238
 239 /* exported */
 240 void snd_vx_free_firmware(vx_core_t *chip)
 241 {
 242 #ifdef CONFIG_PM
 243         int i;
 244         for (i = 0; i < 4; i++)
 245                 free_fw(chip->firmware[i]);
 246 #endif
 247 }
 248
 249 #endif /* SND_VX_FW_LOADER */