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(struct vx_core *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(struct vx_core *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(struct snd_hwdep *hw, struct file *file)
 110 {
 111         return 0;
 112 }
 113
 114 static int vx_hwdep_release(struct snd_hwdep *hw, struct file *file)
 115 {
 116         return 0;
 117 }
 118
 119 static int vx_hwdep_dsp_status(struct snd_hwdep *hw,
 120                                struct snd_hwdep_dsp_status *info)
 121 {
 122         static char *type_ids[VX_TYPE_NUMS] = {
 123                 [VX_TYPE_BOARD] = "vxboard",
 124                 [VX_TYPE_V2] = "vx222",
 125                 [VX_TYPE_MIC] = "vx222",
 126                 [VX_TYPE_VXPOCKET] = "vxpocket",
 127                 [VX_TYPE_VXP440] = "vxp440",
 128         };
 129         struct vx_core *vx = hw->private_data;
 130
 131         snd_assert(type_ids[vx->type], return -EINVAL);
 132         strcpy(info->id, type_ids[vx->type]);
 133         if (vx_is_pcmcia(vx))
 134                 info->num_dsps = 4;
 135         else
 136                 info->num_dsps = 3;
 137         if (vx->chip_status & VX_STAT_CHIP_INIT)
 138                 info->chip_ready = 1;
 139         info->version = VX_DRIVER_VERSION;
 140         return 0;
 141 }
 142
 143 static void free_fw(const struct firmware *fw)
 144 {
 145         if (fw) {
 146                 vfree(fw->data);
 147                 kfree(fw);
 148         }
 149 }
 150
 151 static int vx_hwdep_dsp_load(struct snd_hwdep *hw,
 152                              struct snd_hwdep_dsp_image *dsp)
 153 {
 154         struct vx_core *vx = hw->private_data;
 155         int index, err;
 156         struct firmware *fw;
 157
 158         snd_assert(vx->ops->load_dsp, return -ENXIO);
 159
 160         fw = kmalloc(sizeof(*fw), GFP_KERNEL);
 161         if (! fw) {
 162                 snd_printk(KERN_ERR "cannot allocate firmware\n");
 163                 return -ENOMEM;
 164         }
 165         fw->size = dsp->length;
 166         fw->data = vmalloc(fw->size);
 167         if (! fw->data) {
 168                 snd_printk(KERN_ERR "cannot allocate firmware image (length=%d)\n",
 169                            (int)fw->size);
 170                 kfree(fw);
 171                 return -ENOMEM;
 172         }
 173         if (copy_from_user(fw->data, dsp->image, dsp->length)) {
 174                 free_fw(fw);
 175                 return -EFAULT;
 176         }
 177
 178         index = dsp->index;
 179         if (! vx_is_pcmcia(vx))
 180                 index++;
 181         err = vx->ops->load_dsp(vx, index, fw);
 182         if (err < 0) {
 183                 free_fw(fw);
 184                 return err;
 185         }
 186 #ifdef CONFIG_PM
 187         vx->firmware[index] = fw;
 188 #else
 189         free_fw(fw);
 190 #endif
 191
 192         if (index == 1)
 193                 vx->chip_status |= VX_STAT_XILINX_LOADED;
 194         if (index < 3)
 195                 return 0;
 196
 197         /* ok, we reached to the last one */
 198         /* create the devices if not built yet */
 199         if (! (vx->chip_status & VX_STAT_DEVICE_INIT)) {
 200                 if ((err = snd_vx_pcm_new(vx)) < 0)
 201                         return err;
 202
 203                 if ((err = snd_vx_mixer_new(vx)) < 0)
 204                         return err;
 205
 206                 if (vx->ops->add_controls)
 207                         if ((err = vx->ops->add_controls(vx)) < 0)
 208                                 return err;
 209
 210                 if ((err = snd_card_register(vx->card)) < 0)
 211                         return err;
 212
 213                 vx->chip_status |= VX_STAT_DEVICE_INIT;
 214         }
 215         vx->chip_status |= VX_STAT_CHIP_INIT;
 216         return 0;
 217 }
 218
 219
 220 /* exported */
 221 int snd_vx_setup_firmware(struct vx_core *chip)
 222 {
 223         int err;
 224         struct snd_hwdep *hw;
 225
 226         if ((err = snd_hwdep_new(chip->card, SND_VX_HWDEP_ID, 0, &hw)) < 0)
 227                 return err;
 228
 229         hw->iface = SNDRV_HWDEP_IFACE_VX;
 230         hw->private_data = chip;
 231         hw->ops.open = vx_hwdep_open;
 232         hw->ops.release = vx_hwdep_release;
 233         hw->ops.dsp_status = vx_hwdep_dsp_status;
 234         hw->ops.dsp_load = vx_hwdep_dsp_load;
 235         hw->exclusive = 1;
 236         sprintf(hw->name, "VX Loader (%s)", chip->card->driver);
 237         chip->hwdep = hw;
 238
 239         return snd_card_register(chip->card);
 240 }
 241
 242 /* exported */
 243 void snd_vx_free_firmware(struct vx_core *chip)
 244 {
 245 #ifdef CONFIG_PM
 246         int i;
 247         for (i = 0; i < 4; i++)
 248                 free_fw(chip->firmware[i]);
 249 #endif
 250 }
 251
 252 #endif /* SND_VX_FW_LOADER */
 253
 254 EXPORT_SYMBOL(snd_vx_setup_firmware);
 255 EXPORT_SYMBOL(snd_vx_free_firmware);