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kernel/linux-rt-4.4.41/sound/drivers/vx/vx_hwdep.c 3.21 KB
5113f6f70   김현기   kernel add
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  /*
   * Driver for Digigram VX soundcards
   *
   * DSP firmware management
   *
   * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   *
   *   This program is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU General Public License as published by
   *   the Free Software Foundation; either version 2 of the License, or
   *   (at your option) any later version.
   *
   *   This program is distributed in the hope that it will be useful,
   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *   GNU General Public License for more details.
   *
   *   You should have received a copy of the GNU General Public License
   *   along with this program; if not, write to the Free Software
   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   */
  
  #include <linux/device.h>
  #include <linux/firmware.h>
  #include <linux/slab.h>
  #include <linux/vmalloc.h>
  #include <linux/module.h>
  #include <sound/core.h>
  #include <sound/hwdep.h>
  #include <sound/vx_core.h>
  
  MODULE_FIRMWARE("vx/bx_1_vxp.b56");
  MODULE_FIRMWARE("vx/bx_1_vp4.b56");
  MODULE_FIRMWARE("vx/x1_1_vx2.xlx");
  MODULE_FIRMWARE("vx/x1_2_v22.xlx");
  MODULE_FIRMWARE("vx/x1_1_vxp.xlx");
  MODULE_FIRMWARE("vx/x1_1_vp4.xlx");
  MODULE_FIRMWARE("vx/bd56002.boot");
  MODULE_FIRMWARE("vx/bd563v2.boot");
  MODULE_FIRMWARE("vx/bd563s3.boot");
  MODULE_FIRMWARE("vx/l_1_vx2.d56");
  MODULE_FIRMWARE("vx/l_1_v22.d56");
  MODULE_FIRMWARE("vx/l_1_vxp.d56");
  MODULE_FIRMWARE("vx/l_1_vp4.d56");
  
  int snd_vx_setup_firmware(struct vx_core *chip)
  {
  	static char *fw_files[VX_TYPE_NUMS][4] = {
  		[VX_TYPE_BOARD] = {
  			NULL, "x1_1_vx2.xlx", "bd56002.boot", "l_1_vx2.d56",
  		},
  		[VX_TYPE_V2] = {
  			NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  		},
  		[VX_TYPE_MIC] = {
  			NULL, "x1_2_v22.xlx", "bd563v2.boot", "l_1_v22.d56",
  		},
  		[VX_TYPE_VXPOCKET] = {
  			"bx_1_vxp.b56", "x1_1_vxp.xlx", "bd563s3.boot", "l_1_vxp.d56"
  		},
  		[VX_TYPE_VXP440] = {
  			"bx_1_vp4.b56", "x1_1_vp4.xlx", "bd563s3.boot", "l_1_vp4.d56"
  		},
  	};
  
  	int i, err;
  
  	for (i = 0; i < 4; i++) {
  		char path[32];
  		const struct firmware *fw;
  		if (! fw_files[chip->type][i])
  			continue;
  		sprintf(path, "vx/%s", fw_files[chip->type][i]);
  		if (request_firmware(&fw, path, chip->dev)) {
  			snd_printk(KERN_ERR "vx: can't load firmware %s
  ", path);
  			return -ENOENT;
  		}
  		err = chip->ops->load_dsp(chip, i, fw);
  		if (err < 0) {
  			release_firmware(fw);
  			return err;
  		}
  		if (i == 1)
  			chip->chip_status |= VX_STAT_XILINX_LOADED;
  #ifdef CONFIG_PM
  		chip->firmware[i] = fw;
  #else
  		release_firmware(fw);
  #endif
  	}
  
  	/* ok, we reached to the last one */
  	/* create the devices if not built yet */
  	if ((err = snd_vx_pcm_new(chip)) < 0)
  		return err;
  
  	if ((err = snd_vx_mixer_new(chip)) < 0)
  		return err;
  
  	if (chip->ops->add_controls)
  		if ((err = chip->ops->add_controls(chip)) < 0)
  			return err;
  
  	chip->chip_status |= VX_STAT_DEVICE_INIT;
  	chip->chip_status |= VX_STAT_CHIP_INIT;
  
  	return snd_card_register(chip->card);
  }
  
  /* exported */
  void snd_vx_free_firmware(struct vx_core *chip)
  {
  #ifdef CONFIG_PM
  	int i;
  	for (i = 0; i < 4; i++)
  		release_firmware(chip->firmware[i]);
  #endif
  }
  
  EXPORT_SYMBOL(snd_vx_setup_firmware);
  EXPORT_SYMBOL(snd_vx_free_firmware);