linux/sound/drivers/vx/vx_hwdep.c
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   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 <linux/device.h>
  24#include <linux/firmware.h>
  25#include <linux/vmalloc.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
  32MODULE_FIRMWARE("vx/bx_1_vxp.b56");
  33MODULE_FIRMWARE("vx/bx_1_vp4.b56");
  34MODULE_FIRMWARE("vx/x1_1_vx2.xlx");
  35MODULE_FIRMWARE("vx/x1_2_v22.xlx");
  36MODULE_FIRMWARE("vx/x1_1_vxp.xlx");
  37MODULE_FIRMWARE("vx/x1_1_vp4.xlx");
  38MODULE_FIRMWARE("vx/bd56002.boot");
  39MODULE_FIRMWARE("vx/bd563v2.boot");
  40MODULE_FIRMWARE("vx/bd563s3.boot");
  41MODULE_FIRMWARE("vx/l_1_vx2.d56");
  42MODULE_FIRMWARE("vx/l_1_v22.d56");
  43MODULE_FIRMWARE("vx/l_1_vxp.d56");
  44MODULE_FIRMWARE("vx/l_1_vp4.d56");
  45
  46int snd_vx_setup_firmware(struct vx_core *chip)
  47{
  48        static char *fw_files[VX_TYPE_NUMS][4] = {
  49                [VX_TYPE_BOARD] = {
  50                        NULL, "x1_1_vx2.xlx", "bd56002.boot", "l_1_vx2.d56",
  51                },
  52                [VX_TYPE_V2] = {
  53                        NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  54                },
  55                [VX_TYPE_MIC] = {
  56                        NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  57                },
  58                [VX_TYPE_VXPOCKET] = {
  59                        "bx_1_vxp.b56", "x1_1_vxp.xlx", "bd563s3.boot", "l_1_vxp.d56"
  60                },
  61                [VX_TYPE_VXP440] = {
  62                        "bx_1_vp4.b56", "x1_1_vp4.xlx", "bd563s3.boot", "l_1_vp4.d56"
  63                },
  64        };
  65
  66        int i, err;
  67
  68        for (i = 0; i < 4; i++) {
  69                char path[32];
  70                const struct firmware *fw;
  71                if (! fw_files[chip->type][i])
  72                        continue;
  73                sprintf(path, "vx/%s", fw_files[chip->type][i]);
  74                if (request_firmware(&fw, path, chip->dev)) {
  75                        snd_printk(KERN_ERR "vx: can't load firmware %s\n", path);
  76                        return -ENOENT;
  77                }
  78                err = chip->ops->load_dsp(chip, i, fw);
  79                if (err < 0) {
  80                        release_firmware(fw);
  81                        return err;
  82                }
  83                if (i == 1)
  84                        chip->chip_status |= VX_STAT_XILINX_LOADED;
  85#ifdef CONFIG_PM
  86                chip->firmware[i] = fw;
  87#else
  88                release_firmware(fw);
  89#endif
  90        }
  91
  92        /* ok, we reached to the last one */
  93        /* create the devices if not built yet */
  94        if ((err = snd_vx_pcm_new(chip)) < 0)
  95                return err;
  96
  97        if ((err = snd_vx_mixer_new(chip)) < 0)
  98                return err;
  99
 100        if (chip->ops->add_controls)
 101                if ((err = chip->ops->add_controls(chip)) < 0)
 102                        return err;
 103
 104        chip->chip_status |= VX_STAT_DEVICE_INIT;
 105        chip->chip_status |= VX_STAT_CHIP_INIT;
 106
 107        return snd_card_register(chip->card);
 108}
 109
 110/* exported */
 111void snd_vx_free_firmware(struct vx_core *chip)
 112{
 113#ifdef CONFIG_PM
 114        int i;
 115        for (i = 0; i < 4; i++)
 116                release_firmware(chip->firmware[i]);
 117#endif
 118}
 119
 120#else /* old style firmware loading */
 121
 122static int vx_hwdep_open(struct snd_hwdep *hw, struct file *file)
 123{
 124        return 0;
 125}
 126
 127static int vx_hwdep_release(struct snd_hwdep *hw, struct file *file)
 128{
 129        return 0;
 130}
 131
 132static int vx_hwdep_dsp_status(struct snd_hwdep *hw,
 133                               struct snd_hwdep_dsp_status *info)
 134{
 135        static char *type_ids[VX_TYPE_NUMS] = {
 136                [VX_TYPE_BOARD] = "vxboard",
 137                [VX_TYPE_V2] = "vx222",
 138                [VX_TYPE_MIC] = "vx222",
 139                [VX_TYPE_VXPOCKET] = "vxpocket",
 140                [VX_TYPE_VXP440] = "vxp440",
 141        };
 142        struct vx_core *vx = hw->private_data;
 143
 144        if (snd_BUG_ON(!type_ids[vx->type]))
 145                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
 157static void free_fw(const struct firmware *fw)
 158{
 159        if (fw) {
 160                vfree(fw->data);
 161                kfree(fw);
 162        }
 163}
 164
 165static 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        if (snd_BUG_ON(!vx->ops->load_dsp))
 173                return -ENXIO;
 174
 175        fw = kmalloc(sizeof(*fw), GFP_KERNEL);
 176        if (! fw) {
 177                snd_printk(KERN_ERR "cannot allocate firmware\n");
 178                return -ENOMEM;
 179        }
 180        fw->size = dsp->length;
 181        fw->data = vmalloc(fw->size);
 182        if (! fw->data) {
 183                snd_printk(KERN_ERR "cannot allocate firmware image (length=%d)\n",
 184                           (int)fw->size);
 185                kfree(fw);
 186                return -ENOMEM;
 187        }
 188        if (copy_from_user((void *)fw->data, dsp->image, dsp->length)) {
 189                free_fw(fw);
 190                return -EFAULT;
 191        }
 192
 193        index = dsp->index;
 194        if (! vx_is_pcmcia(vx))
 195                index++;
 196        err = vx->ops->load_dsp(vx, index, fw);
 197        if (err < 0) {
 198                free_fw(fw);
 199                return err;
 200        }
 201#ifdef CONFIG_PM
 202        vx->firmware[index] = fw;
 203#else
 204        free_fw(fw);
 205#endif
 206
 207        if (index == 1)
 208                vx->chip_status |= VX_STAT_XILINX_LOADED;
 209        if (index < 3)
 210                return 0;
 211
 212        /* ok, we reached to the last one */
 213        /* create the devices if not built yet */
 214        if (! (vx->chip_status & VX_STAT_DEVICE_INIT)) {
 215                if ((err = snd_vx_pcm_new(vx)) < 0)
 216                        return err;
 217
 218                if ((err = snd_vx_mixer_new(vx)) < 0)
 219                        return err;
 220
 221                if (vx->ops->add_controls)
 222                        if ((err = vx->ops->add_controls(vx)) < 0)
 223                                return err;
 224
 225                if ((err = snd_card_register(vx->card)) < 0)
 226                        return err;
 227
 228                vx->chip_status |= VX_STAT_DEVICE_INIT;
 229        }
 230        vx->chip_status |= VX_STAT_CHIP_INIT;
 231        return 0;
 232}
 233
 234
 235/* exported */
 236int snd_vx_setup_firmware(struct vx_core *chip)
 237{
 238        int err;
 239        struct snd_hwdep *hw;
 240
 241        if ((err = snd_hwdep_new(chip->card, SND_VX_HWDEP_ID, 0, &hw)) < 0)
 242                return err;
 243
 244        hw->iface = SNDRV_HWDEP_IFACE_VX;
 245        hw->private_data = chip;
 246        hw->ops.open = vx_hwdep_open;
 247        hw->ops.release = vx_hwdep_release;
 248        hw->ops.dsp_status = vx_hwdep_dsp_status;
 249        hw->ops.dsp_load = vx_hwdep_dsp_load;
 250        hw->exclusive = 1;
 251        sprintf(hw->name, "VX Loader (%s)", chip->card->driver);
 252        chip->hwdep = hw;
 253
 254        return snd_card_register(chip->card);
 255}
 256
 257/* exported */
 258void snd_vx_free_firmware(struct vx_core *chip)
 259{
 260#ifdef CONFIG_PM
 261        int i;
 262        for (i = 0; i < 4; i++)
 263                free_fw(chip->firmware[i]);
 264#endif
 265}
 266
 267#endif /* SND_VX_FW_LOADER */
 268
 269EXPORT_SYMBOL(snd_vx_setup_firmware);
 270EXPORT_SYMBOL(snd_vx_free_firmware);
 271
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