sound/pci/pcxhr/pcxhr_hwdep.c - kernel/prism - Git at Google

 /*
  * Driver for Digigram pcxhr compatible soundcards
  *
  * hwdep device manager
  *
  * Copyright (c) 2004 by Digigram <alsa@digigram.com>
  *
  *   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/interrupt.h>
 #include <linux/vmalloc.h>
 #include <linux/firmware.h>
 #include <linux/pci.h>
 #include <asm/io.h>
 #include <sound/core.h>
 #include <sound/hwdep.h>
 #include "pcxhr.h"
 #include "pcxhr_mixer.h"
 #include "pcxhr_hwdep.h"
 #include "pcxhr_core.h"
 #include "pcxhr_mix22.h"


 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
 #if !defined(CONFIG_USE_PCXHRLOADER) && !defined(CONFIG_SND_PCXHR) /* built-in kernel */
 #define SND_PCXHR_FW_LOADER	/* use the standard firmware loader */
 #endif
 #endif


 static int pcxhr_sub_init(struct pcxhr_mgr *mgr);
 /*
  * get basic information and init pcxhr card
  */
 static int pcxhr_init_board(struct pcxhr_mgr *mgr)
 {
 	int err;
 	struct pcxhr_rmh rmh;
 	int card_streams;

 	/* calc the number of all streams used */
 	if (mgr->mono_capture)
 		card_streams = mgr->capture_chips * 2;
 	else
 		card_streams = mgr->capture_chips;
 	card_streams += mgr->playback_chips * PCXHR_PLAYBACK_STREAMS;

 	/* enable interrupts */
 	pcxhr_enable_dsp(mgr);

 	pcxhr_init_rmh(&rmh, CMD_SUPPORTED);
 	err = pcxhr_send_msg(mgr, &rmh);
 	if (err)
 		return err;
 	/* test 8 or 12 phys out */
 	if ((rmh.stat[0] & MASK_FIRST_FIELD) != mgr->playback_chips * 2)
 		return -EINVAL;
 	/* test 8 or 2 phys in */
 	if (((rmh.stat[0] >> (2 * FIELD_SIZE)) & MASK_FIRST_FIELD) <
 	    mgr->capture_chips * 2)
 		return -EINVAL;
 	/* test max nb substream per board */
 	if ((rmh.stat[1] & 0x5F) < card_streams)
 		return -EINVAL;
 	/* test max nb substream per pipe */
 	if (((rmh.stat[1] >> 7) & 0x5F) < PCXHR_PLAYBACK_STREAMS)
 		return -EINVAL;
 	snd_printdd("supported formats : playback=%x capture=%x\n",
 		    rmh.stat[2], rmh.stat[3]);

 	pcxhr_init_rmh(&rmh, CMD_VERSION);
 	/* firmware num for DSP */
 	rmh.cmd[0] |= mgr->firmware_num;
 	/* transfer granularity in samples (should be multiple of 48) */
 	rmh.cmd[1] = (1<<23) + mgr->granularity;
 	rmh.cmd_len = 2;
 	err = pcxhr_send_msg(mgr, &rmh);
 	if (err)
 		return err;
 	snd_printdd("PCXHR DSP version is %d.%d.%d\n", (rmh.stat[0]>>16)&0xff,
 		    (rmh.stat[0]>>8)&0xff, rmh.stat[0]&0xff);
 	mgr->dsp_version = rmh.stat[0];

 	if (mgr->is_hr_stereo)
 		err = hr222_sub_init(mgr);
 	else
 		err = pcxhr_sub_init(mgr);
 	return err;
 }

 static int pcxhr_sub_init(struct pcxhr_mgr *mgr)
 {
 	int err;
 	struct pcxhr_rmh rmh;

 	/* get options */
 	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
 	rmh.cmd[0] |= IO_NUM_REG_STATUS;
 	rmh.cmd[1]  = REG_STATUS_OPTIONS;
 	rmh.cmd_len = 2;
 	err = pcxhr_send_msg(mgr, &rmh);
 	if (err)
 		return err;

 	if ((rmh.stat[1] & REG_STATUS_OPT_DAUGHTER_MASK) ==
 	    REG_STATUS_OPT_ANALOG_BOARD)
 		mgr->board_has_analog = 1;	/* analog addon board found */

 	/* unmute inputs */
 	err = pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS,
 					  REG_CONT_UNMUTE_INPUTS, NULL);
 	if (err)
 		return err;
 	/* unmute outputs (a write to IO_NUM_REG_MUTE_OUT mutes!) */
 	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
 	rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
 	if (DSP_EXT_CMD_SET(mgr)) {
 		rmh.cmd[1]  = 1;	/* unmute digital plugs */
 		rmh.cmd_len = 2;
 	}
 	err = pcxhr_send_msg(mgr, &rmh);
 	return err;
 }

 void pcxhr_reset_board(struct pcxhr_mgr *mgr)
 {
 	struct pcxhr_rmh rmh;

 	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
 		/* mute outputs */
 	    if (!mgr->is_hr_stereo) {
 		/* a read to IO_NUM_REG_MUTE_OUT register unmutes! */
 		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
 		rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
 		pcxhr_send_msg(mgr, &rmh);
 		/* mute inputs */
 		pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS,
 					    0, NULL);
 	    }
 		/* stereo cards mute with reset of dsp */
 	}
 	/* reset pcxhr dsp */
 	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_EPRM_INDEX))
 		pcxhr_reset_dsp(mgr);
 	/* reset second xilinx */
 	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_XLX_COM_INDEX)) {
 		pcxhr_reset_xilinx_com(mgr);
 		mgr->dsp_loaded = 1;
 	}
 	return;
 }


 /*
  *  allocate a playback/capture pipe (pcmp0/pcmc0)
  */
 static int pcxhr_dsp_allocate_pipe(struct pcxhr_mgr *mgr,
 				   struct pcxhr_pipe *pipe,
 				   int is_capture, int pin)
 {
 	int stream_count, audio_count;
 	int err;
 	struct pcxhr_rmh rmh;

 	if (is_capture) {
 		stream_count = 1;
 		if (mgr->mono_capture)
 			audio_count = 1;
 		else
 			audio_count = 2;
 	} else {
 		stream_count = PCXHR_PLAYBACK_STREAMS;
 		audio_count = 2;	/* always stereo */
 	}
 	snd_printdd("snd_add_ref_pipe pin(%d) pcm%c0\n",
 		    pin, is_capture ? 'c' : 'p');
 	pipe->is_capture = is_capture;
 	pipe->first_audio = pin;
 	/* define pipe (P_PCM_ONLY_MASK (0x020000) is not necessary) */
 	pcxhr_init_rmh(&rmh, CMD_RES_PIPE);
 	pcxhr_set_pipe_cmd_params(&rmh, is_capture, pin,
 				  audio_count, stream_count);
 	rmh.cmd[1] |= 0x020000; /* add P_PCM_ONLY_MASK */
 	if (DSP_EXT_CMD_SET(mgr)) {
 		/* add channel mask to command */
 	  rmh.cmd[rmh.cmd_len++] = (audio_count == 1) ? 0x01 : 0x03;
 	}
 	err = pcxhr_send_msg(mgr, &rmh);
 	if (err < 0) {
 		snd_printk(KERN_ERR "error pipe allocation "
 			   "(CMD_RES_PIPE) err=%x!\n", err);
 		return err;
 	}
 	pipe->status = PCXHR_PIPE_DEFINED;

 	return 0;
 }

 /*
  *  free playback/capture pipe (pcmp0/pcmc0)
  */
 #if 0
 static int pcxhr_dsp_free_pipe( struct pcxhr_mgr *mgr, struct pcxhr_pipe *pipe)
 {
 	struct pcxhr_rmh rmh;
 	int capture_mask = 0;
 	int playback_mask = 0;
 	int err = 0;

 	if (pipe->is_capture)
 		capture_mask  = (1 << pipe->first_audio);
 	else
 		playback_mask = (1 << pipe->first_audio);

 	/* stop one pipe */
 	err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 0);
 	if (err < 0)
 		snd_printk(KERN_ERR "error stopping pipe!\n");
 	/* release the pipe */
 	pcxhr_init_rmh(&rmh, CMD_FREE_PIPE);
 	pcxhr_set_pipe_cmd_params(&rmh, pipe->is_capture, pipe->first_audio,
 				  0, 0);
 	err = pcxhr_send_msg(mgr, &rmh);
 	if (err < 0)
 		snd_printk(KERN_ERR "error pipe release "
 			   "(CMD_FREE_PIPE) err(%x)\n", err);
 	pipe->status = PCXHR_PIPE_UNDEFINED;
 	return err;
 }
 #endif


 static int pcxhr_config_pipes(struct pcxhr_mgr *mgr)
 {
 	int err, i, j;
 	struct snd_pcxhr *chip;
 	struct pcxhr_pipe *pipe;

 	/* allocate the pipes on the dsp */
 	for (i = 0; i < mgr->num_cards; i++) {
 		chip = mgr->chip[i];
 		if (chip->nb_streams_play) {
 			pipe = &chip->playback_pipe;
 			err = pcxhr_dsp_allocate_pipe( mgr, pipe, 0, i*2);
 			if (err)
 				return err;
 			for(j = 0; j < chip->nb_streams_play; j++)
 				chip->playback_stream[j].pipe = pipe;
 		}
 		for (j = 0; j < chip->nb_streams_capt; j++) {
 			pipe = &chip->capture_pipe[j];
 			err = pcxhr_dsp_allocate_pipe(mgr, pipe, 1, i*2 + j);
 			if (err)
 				return err;
 			chip->capture_stream[j].pipe = pipe;
 		}
 	}
 	return 0;
 }

 static int pcxhr_start_pipes(struct pcxhr_mgr *mgr)
 {
 	int i, j;
 	struct snd_pcxhr *chip;
 	int playback_mask = 0;
 	int capture_mask = 0;

 	/* start all the pipes on the dsp */
 	for (i = 0; i < mgr->num_cards; i++) {
 		chip = mgr->chip[i];
 		if (chip->nb_streams_play)
 			playback_mask |= 1 << chip->playback_pipe.first_audio;
 		for (j = 0; j < chip->nb_streams_capt; j++)
 			capture_mask |= 1 << chip->capture_pipe[j].first_audio;
 	}
 	return pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
 }


 static int pcxhr_dsp_load(struct pcxhr_mgr *mgr, int index,
 			  const struct firmware *dsp)
 {
 	int err, card_index;

 	snd_printdd("loading dsp [%d] size = %Zd\n", index, dsp->size);

 	switch (index) {
 	case PCXHR_FIRMWARE_XLX_INT_INDEX:
 		pcxhr_reset_xilinx_com(mgr);
 		return pcxhr_load_xilinx_binary(mgr, dsp, 0);

 	case PCXHR_FIRMWARE_XLX_COM_INDEX:
 		pcxhr_reset_xilinx_com(mgr);
 		return pcxhr_load_xilinx_binary(mgr, dsp, 1);

 	case PCXHR_FIRMWARE_DSP_EPRM_INDEX:
 		pcxhr_reset_dsp(mgr);
 		return pcxhr_load_eeprom_binary(mgr, dsp);

 	case PCXHR_FIRMWARE_DSP_BOOT_INDEX:
 		return pcxhr_load_boot_binary(mgr, dsp);

 	case PCXHR_FIRMWARE_DSP_MAIN_INDEX:
 		err = pcxhr_load_dsp_binary(mgr, dsp);
 		if (err)
 			return err;
 		break;	/* continue with first init */
 	default:
 		snd_printk(KERN_ERR "wrong file index\n");
 		return -EFAULT;
 	} /* end of switch file index*/

 	/* first communication with embedded */
 	err = pcxhr_init_board(mgr);
         if (err < 0) {
 		snd_printk(KERN_ERR "pcxhr could not be set up\n");
 		return err;
 	}
 	err = pcxhr_config_pipes(mgr);
         if (err < 0) {
 		snd_printk(KERN_ERR "pcxhr pipes could not be set up\n");
 		return err;
 	}
        	/* create devices and mixer in accordance with HW options*/
         for (card_index = 0; card_index < mgr->num_cards; card_index++) {
 		struct snd_pcxhr *chip = mgr->chip[card_index];

 		if ((err = pcxhr_create_pcm(chip)) < 0)
 			return err;

 		if (card_index == 0) {
 			if ((err = pcxhr_create_mixer(chip->mgr)) < 0)
 				return err;
 		}
 		if ((err = snd_card_register(chip->card)) < 0)
 			return err;
 	}
 	err = pcxhr_start_pipes(mgr);
         if (err < 0) {
 		snd_printk(KERN_ERR "pcxhr pipes could not be started\n");
 		return err;
 	}
 	snd_printdd("pcxhr firmware downloaded and successfully set up\n");

 	return 0;
 }

 /*
  * fw loader entry
  */
 #ifdef SND_PCXHR_FW_LOADER

 int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
 {
 	static char *fw_files[][5] = {
 	[0] = { "xlxint.dat", "xlxc882hr.dat",
 		"dspe882.e56", "dspb882hr.b56", "dspd882.d56" },
 	[1] = { "xlxint.dat", "xlxc882e.dat",
 		"dspe882.e56", "dspb882e.b56", "dspd882.d56" },
 	[2] = { "xlxint.dat", "xlxc1222hr.dat",
 		"dspe882.e56", "dspb1222hr.b56", "dspd1222.d56" },
 	[3] = { "xlxint.dat", "xlxc1222e.dat",
 		"dspe882.e56", "dspb1222e.b56", "dspd1222.d56" },
 	[4] = { NULL, "xlxc222.dat",
 		"dspe924.e56", "dspb924.b56", "dspd222.d56" },
 	[5] = { NULL, "xlxc924.dat",
 		"dspe924.e56", "dspb924.b56", "dspd222.d56" },
 	};
 	char path[32];

 	const struct firmware *fw_entry;
 	int i, err;
 	int fw_set = mgr->fw_file_set;

 	for (i = 0; i < 5; i++) {
 		if (!fw_files[fw_set][i])
 			continue;
 		sprintf(path, "pcxhr/%s", fw_files[fw_set][i]);
 		if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
 			snd_printk(KERN_ERR "pcxhr: can't load firmware %s\n",
 				   path);
 			return -ENOENT;
 		}
 		/* fake hwdep dsp record */
 		err = pcxhr_dsp_load(mgr, i, fw_entry);
 		release_firmware(fw_entry);
 		if (err < 0)
 			return err;
 		mgr->dsp_loaded |= 1 << i;
 	}
 	return 0;
 }

 MODULE_FIRMWARE("pcxhr/xlxint.dat");
 MODULE_FIRMWARE("pcxhr/xlxc882hr.dat");
 MODULE_FIRMWARE("pcxhr/xlxc882e.dat");
 MODULE_FIRMWARE("pcxhr/dspe882.e56");
 MODULE_FIRMWARE("pcxhr/dspb882hr.b56");
 MODULE_FIRMWARE("pcxhr/dspb882e.b56");
 MODULE_FIRMWARE("pcxhr/dspd882.d56");

 MODULE_FIRMWARE("pcxhr/xlxc1222hr.dat");
 MODULE_FIRMWARE("pcxhr/xlxc1222e.dat");
 MODULE_FIRMWARE("pcxhr/dspb1222hr.b56");
 MODULE_FIRMWARE("pcxhr/dspb1222e.b56");
 MODULE_FIRMWARE("pcxhr/dspd1222.d56");

 MODULE_FIRMWARE("pcxhr/xlxc222.dat");
 MODULE_FIRMWARE("pcxhr/xlxc924.dat");
 MODULE_FIRMWARE("pcxhr/dspe924.e56");
 MODULE_FIRMWARE("pcxhr/dspb924.b56");
 MODULE_FIRMWARE("pcxhr/dspd222.d56");


 #else /* old style firmware loading */

 /* pcxhr hwdep interface id string */
 #define PCXHR_HWDEP_ID       "pcxhr loader"


 static int pcxhr_hwdep_dsp_status(struct snd_hwdep *hw,
 				  struct snd_hwdep_dsp_status *info)
 {
 	struct pcxhr_mgr *mgr = hw->private_data;
 	sprintf(info->id, "pcxhr%d", mgr->fw_file_set);
         info->num_dsps = PCXHR_FIRMWARE_FILES_MAX_INDEX;

 	if (hw->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX))
 		info->chip_ready = 1;

 	info->version = PCXHR_DRIVER_VERSION;
 	return 0;
 }

 static int pcxhr_hwdep_dsp_load(struct snd_hwdep *hw,
 				struct snd_hwdep_dsp_image *dsp)
 {
 	struct pcxhr_mgr *mgr = hw->private_data;
 	int err;
 	struct firmware fw;

 	fw.size = dsp->length;
 	fw.data = vmalloc(fw.size);
 	if (! fw.data) {
 		snd_printk(KERN_ERR "pcxhr: cannot allocate dsp image "
 			   "(%lu bytes)\n", (unsigned long)fw.size);
 		return -ENOMEM;
 	}
 	if (copy_from_user((void *)fw.data, dsp->image, dsp->length)) {
 		vfree(fw.data);
 		return -EFAULT;
 	}
 	err = pcxhr_dsp_load(mgr, dsp->index, &fw);
 	vfree(fw.data);
 	if (err < 0)
 		return err;
 	mgr->dsp_loaded |= 1 << dsp->index;
 	return 0;
 }

 int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
 {
 	int err;
 	struct snd_hwdep *hw;

 	/* only create hwdep interface for first cardX
 	 * (see "index" module parameter)
 	 */
 	err = snd_hwdep_new(mgr->chip[0]->card, PCXHR_HWDEP_ID, 0, &hw);
 	if (err < 0)
 		return err;

 	hw->iface = SNDRV_HWDEP_IFACE_PCXHR;
 	hw->private_data = mgr;
 	hw->ops.dsp_status = pcxhr_hwdep_dsp_status;
 	hw->ops.dsp_load = pcxhr_hwdep_dsp_load;
 	hw->exclusive = 1;
 	/* stereo cards don't need fw_file_0 -> dsp_loaded = 1 */
 	hw->dsp_loaded = mgr->is_hr_stereo ? 1 : 0;
 	mgr->dsp_loaded = 0;
 	sprintf(hw->name, PCXHR_HWDEP_ID);

 	err = snd_card_register(mgr->chip[0]->card);
 	if (err < 0)
 		return err;
 	return 0;
 }

 #endif /* SND_PCXHR_FW_LOADER */
	/*
	* Driver for Digigram pcxhr compatible soundcards
	*
	* hwdep device manager
	*
	* Copyright (c) 2004 by Digigram <alsa@digigram.com>
	*
	* 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/interrupt.h>
	#include <linux/vmalloc.h>
	#include <linux/firmware.h>
	#include <linux/pci.h>
	#include <asm/io.h>
	#include <sound/core.h>
	#include <sound/hwdep.h>
	#include "pcxhr.h"
	#include "pcxhr_mixer.h"
	#include "pcxhr_hwdep.h"
	#include "pcxhr_core.h"
	#include "pcxhr_mix22.h"


	#if defined(CONFIG_FW_LOADER) \|\| defined(CONFIG_FW_LOADER_MODULE)
	#if !defined(CONFIG_USE_PCXHRLOADER) && !defined(CONFIG_SND_PCXHR) /* built-in kernel */
	#define SND_PCXHR_FW_LOADER /* use the standard firmware loader */
	#endif
	#endif


	static int pcxhr_sub_init(struct pcxhr_mgr *mgr);
	/*
	* get basic information and init pcxhr card
	*/
	static int pcxhr_init_board(struct pcxhr_mgr *mgr)
	{
	int err;
	struct pcxhr_rmh rmh;
	int card_streams;

	/* calc the number of all streams used */
	if (mgr->mono_capture)
	card_streams = mgr->capture_chips * 2;
	else
	card_streams = mgr->capture_chips;
	card_streams += mgr->playback_chips * PCXHR_PLAYBACK_STREAMS;

	/* enable interrupts */
	pcxhr_enable_dsp(mgr);

	pcxhr_init_rmh(&rmh, CMD_SUPPORTED);
	err = pcxhr_send_msg(mgr, &rmh);
	if (err)
	return err;
	/* test 8 or 12 phys out */
	if ((rmh.stat[0] & MASK_FIRST_FIELD) != mgr->playback_chips * 2)
	return -EINVAL;
	/* test 8 or 2 phys in */
	if (((rmh.stat[0] >> (2 * FIELD_SIZE)) & MASK_FIRST_FIELD) <
	mgr->capture_chips * 2)
	return -EINVAL;
	/* test max nb substream per board */
	if ((rmh.stat[1] & 0x5F) < card_streams)
	return -EINVAL;
	/* test max nb substream per pipe */
	if (((rmh.stat[1] >> 7) & 0x5F) < PCXHR_PLAYBACK_STREAMS)
	return -EINVAL;
	snd_printdd("supported formats : playback=%x capture=%x\n",
	rmh.stat[2], rmh.stat[3]);

	pcxhr_init_rmh(&rmh, CMD_VERSION);
	/* firmware num for DSP */
	rmh.cmd[0] \|= mgr->firmware_num;
	/* transfer granularity in samples (should be multiple of 48) */
	rmh.cmd[1] = (1<<23) + mgr->granularity;
	rmh.cmd_len = 2;
	err = pcxhr_send_msg(mgr, &rmh);
	if (err)
	return err;
	snd_printdd("PCXHR DSP version is %d.%d.%d\n", (rmh.stat[0]>>16)&0xff,
	(rmh.stat[0]>>8)&0xff, rmh.stat[0]&0xff);
	mgr->dsp_version = rmh.stat[0];

	if (mgr->is_hr_stereo)
	err = hr222_sub_init(mgr);
	else
	err = pcxhr_sub_init(mgr);
	return err;
	}

	static int pcxhr_sub_init(struct pcxhr_mgr *mgr)
	{
	int err;
	struct pcxhr_rmh rmh;

	/* get options */
	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
	rmh.cmd[0] \|= IO_NUM_REG_STATUS;
	rmh.cmd[1] = REG_STATUS_OPTIONS;
	rmh.cmd_len = 2;
	err = pcxhr_send_msg(mgr, &rmh);
	if (err)
	return err;

	if ((rmh.stat[1] & REG_STATUS_OPT_DAUGHTER_MASK) ==
	REG_STATUS_OPT_ANALOG_BOARD)
	mgr->board_has_analog = 1; /* analog addon board found */

	/* unmute inputs */
	err = pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS,
	REG_CONT_UNMUTE_INPUTS, NULL);
	if (err)
	return err;
	/* unmute outputs (a write to IO_NUM_REG_MUTE_OUT mutes!) */
	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
	rmh.cmd[0] \|= IO_NUM_REG_MUTE_OUT;
	if (DSP_EXT_CMD_SET(mgr)) {
	rmh.cmd[1] = 1; /* unmute digital plugs */
	rmh.cmd_len = 2;
	}
	err = pcxhr_send_msg(mgr, &rmh);
	return err;
	}

	void pcxhr_reset_board(struct pcxhr_mgr *mgr)
	{
	struct pcxhr_rmh rmh;

	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
	/* mute outputs */
	if (!mgr->is_hr_stereo) {
	/* a read to IO_NUM_REG_MUTE_OUT register unmutes! */
	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
	rmh.cmd[0] \|= IO_NUM_REG_MUTE_OUT;
	pcxhr_send_msg(mgr, &rmh);
	/* mute inputs */
	pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS,
	0, NULL);
	}
	/* stereo cards mute with reset of dsp */
	}
	/* reset pcxhr dsp */
	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_EPRM_INDEX))
	pcxhr_reset_dsp(mgr);
	/* reset second xilinx */
	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_XLX_COM_INDEX)) {
	pcxhr_reset_xilinx_com(mgr);
	mgr->dsp_loaded = 1;
	}
	return;
	}


	/*
	* allocate a playback/capture pipe (pcmp0/pcmc0)
	*/
	static int pcxhr_dsp_allocate_pipe(struct pcxhr_mgr *mgr,
	struct pcxhr_pipe *pipe,
	int is_capture, int pin)
	{
	int stream_count, audio_count;
	int err;
	struct pcxhr_rmh rmh;

	if (is_capture) {
	stream_count = 1;
	if (mgr->mono_capture)
	audio_count = 1;
	else
	audio_count = 2;
	} else {
	stream_count = PCXHR_PLAYBACK_STREAMS;
	audio_count = 2; /* always stereo */
	}
	snd_printdd("snd_add_ref_pipe pin(%d) pcm%c0\n",
	pin, is_capture ? 'c' : 'p');
	pipe->is_capture = is_capture;
	pipe->first_audio = pin;
	/* define pipe (P_PCM_ONLY_MASK (0x020000) is not necessary) */
	pcxhr_init_rmh(&rmh, CMD_RES_PIPE);
	pcxhr_set_pipe_cmd_params(&rmh, is_capture, pin,
	audio_count, stream_count);
	rmh.cmd[1] \|= 0x020000; /* add P_PCM_ONLY_MASK */
	if (DSP_EXT_CMD_SET(mgr)) {
	/* add channel mask to command */
	rmh.cmd[rmh.cmd_len++] = (audio_count == 1) ? 0x01 : 0x03;
	}
	err = pcxhr_send_msg(mgr, &rmh);
	if (err < 0) {
	snd_printk(KERN_ERR "error pipe allocation "
	"(CMD_RES_PIPE) err=%x!\n", err);
	return err;
	}
	pipe->status = PCXHR_PIPE_DEFINED;

	return 0;
	}

	/*
	* free playback/capture pipe (pcmp0/pcmc0)
	*/
	#if 0
	static int pcxhr_dsp_free_pipe( struct pcxhr_mgr mgr, struct pcxhr_pipe pipe)
	{
	struct pcxhr_rmh rmh;
	int capture_mask = 0;
	int playback_mask = 0;
	int err = 0;

	if (pipe->is_capture)
	capture_mask = (1 << pipe->first_audio);
	else
	playback_mask = (1 << pipe->first_audio);

	/* stop one pipe */
	err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 0);
	if (err < 0)
	snd_printk(KERN_ERR "error stopping pipe!\n");
	/* release the pipe */
	pcxhr_init_rmh(&rmh, CMD_FREE_PIPE);
	pcxhr_set_pipe_cmd_params(&rmh, pipe->is_capture, pipe->first_audio,
	0, 0);
	err = pcxhr_send_msg(mgr, &rmh);
	if (err < 0)
	snd_printk(KERN_ERR "error pipe release "
	"(CMD_FREE_PIPE) err(%x)\n", err);
	pipe->status = PCXHR_PIPE_UNDEFINED;
	return err;
	}
	#endif


	static int pcxhr_config_pipes(struct pcxhr_mgr *mgr)
	{
	int err, i, j;
	struct snd_pcxhr *chip;
	struct pcxhr_pipe *pipe;

	/* allocate the pipes on the dsp */
	for (i = 0; i < mgr->num_cards; i++) {
	chip = mgr->chip[i];
	if (chip->nb_streams_play) {
	pipe = &chip->playback_pipe;
	err = pcxhr_dsp_allocate_pipe( mgr, pipe, 0, i*2);
	if (err)
	return err;
	for(j = 0; j < chip->nb_streams_play; j++)
	chip->playback_stream[j].pipe = pipe;
	}
	for (j = 0; j < chip->nb_streams_capt; j++) {
	pipe = &chip->capture_pipe[j];
	err = pcxhr_dsp_allocate_pipe(mgr, pipe, 1, i*2 + j);
	if (err)
	return err;
	chip->capture_stream[j].pipe = pipe;
	}
	}
	return 0;
	}

	static int pcxhr_start_pipes(struct pcxhr_mgr *mgr)
	{
	int i, j;
	struct snd_pcxhr *chip;
	int playback_mask = 0;
	int capture_mask = 0;

	/* start all the pipes on the dsp */
	for (i = 0; i < mgr->num_cards; i++) {
	chip = mgr->chip[i];
	if (chip->nb_streams_play)
	playback_mask \|= 1 << chip->playback_pipe.first_audio;
	for (j = 0; j < chip->nb_streams_capt; j++)
	capture_mask \|= 1 << chip->capture_pipe[j].first_audio;
	}
	return pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
	}


	static int pcxhr_dsp_load(struct pcxhr_mgr *mgr, int index,
	const struct firmware *dsp)
	{
	int err, card_index;

	snd_printdd("loading dsp [%d] size = %Zd\n", index, dsp->size);

	switch (index) {
	case PCXHR_FIRMWARE_XLX_INT_INDEX:
	pcxhr_reset_xilinx_com(mgr);
	return pcxhr_load_xilinx_binary(mgr, dsp, 0);

	case PCXHR_FIRMWARE_XLX_COM_INDEX:
	pcxhr_reset_xilinx_com(mgr);
	return pcxhr_load_xilinx_binary(mgr, dsp, 1);

	case PCXHR_FIRMWARE_DSP_EPRM_INDEX:
	pcxhr_reset_dsp(mgr);
	return pcxhr_load_eeprom_binary(mgr, dsp);

	case PCXHR_FIRMWARE_DSP_BOOT_INDEX:
	return pcxhr_load_boot_binary(mgr, dsp);

	case PCXHR_FIRMWARE_DSP_MAIN_INDEX:
	err = pcxhr_load_dsp_binary(mgr, dsp);
	if (err)
	return err;
	break; /* continue with first init */
	default:
	snd_printk(KERN_ERR "wrong file index\n");
	return -EFAULT;
	} /* end of switch file index*/

	/* first communication with embedded */
	err = pcxhr_init_board(mgr);
	if (err < 0) {
	snd_printk(KERN_ERR "pcxhr could not be set up\n");
	return err;
	}
	err = pcxhr_config_pipes(mgr);
	if (err < 0) {
	snd_printk(KERN_ERR "pcxhr pipes could not be set up\n");
	return err;
	}
	/* create devices and mixer in accordance with HW options*/
	for (card_index = 0; card_index < mgr->num_cards; card_index++) {
	struct snd_pcxhr *chip = mgr->chip[card_index];

	if ((err = pcxhr_create_pcm(chip)) < 0)
	return err;

	if (card_index == 0) {
	if ((err = pcxhr_create_mixer(chip->mgr)) < 0)
	return err;
	}
	if ((err = snd_card_register(chip->card)) < 0)
	return err;
	}
	err = pcxhr_start_pipes(mgr);
	if (err < 0) {
	snd_printk(KERN_ERR "pcxhr pipes could not be started\n");
	return err;
	}
	snd_printdd("pcxhr firmware downloaded and successfully set up\n");

	return 0;
	}

	/*
	* fw loader entry
	*/
	#ifdef SND_PCXHR_FW_LOADER

	int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
	{
	static char *fw_files[][5] = {
	[0] = { "xlxint.dat", "xlxc882hr.dat",
	"dspe882.e56", "dspb882hr.b56", "dspd882.d56" },
	[1] = { "xlxint.dat", "xlxc882e.dat",
	"dspe882.e56", "dspb882e.b56", "dspd882.d56" },
	[2] = { "xlxint.dat", "xlxc1222hr.dat",
	"dspe882.e56", "dspb1222hr.b56", "dspd1222.d56" },
	[3] = { "xlxint.dat", "xlxc1222e.dat",
	"dspe882.e56", "dspb1222e.b56", "dspd1222.d56" },
	[4] = { NULL, "xlxc222.dat",
	"dspe924.e56", "dspb924.b56", "dspd222.d56" },
	[5] = { NULL, "xlxc924.dat",
	"dspe924.e56", "dspb924.b56", "dspd222.d56" },
	};
	char path[32];

	const struct firmware *fw_entry;
	int i, err;
	int fw_set = mgr->fw_file_set;

	for (i = 0; i < 5; i++) {
	if (!fw_files[fw_set][i])
	continue;
	sprintf(path, "pcxhr/%s", fw_files[fw_set][i]);
	if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
	snd_printk(KERN_ERR "pcxhr: can't load firmware %s\n",
	path);
	return -ENOENT;
	}
	/* fake hwdep dsp record */
	err = pcxhr_dsp_load(mgr, i, fw_entry);
	release_firmware(fw_entry);
	if (err < 0)
	return err;
	mgr->dsp_loaded \|= 1 << i;
	}
	return 0;
	}

	MODULE_FIRMWARE("pcxhr/xlxint.dat");
	MODULE_FIRMWARE("pcxhr/xlxc882hr.dat");
	MODULE_FIRMWARE("pcxhr/xlxc882e.dat");
	MODULE_FIRMWARE("pcxhr/dspe882.e56");
	MODULE_FIRMWARE("pcxhr/dspb882hr.b56");
	MODULE_FIRMWARE("pcxhr/dspb882e.b56");
	MODULE_FIRMWARE("pcxhr/dspd882.d56");

	MODULE_FIRMWARE("pcxhr/xlxc1222hr.dat");
	MODULE_FIRMWARE("pcxhr/xlxc1222e.dat");
	MODULE_FIRMWARE("pcxhr/dspb1222hr.b56");
	MODULE_FIRMWARE("pcxhr/dspb1222e.b56");
	MODULE_FIRMWARE("pcxhr/dspd1222.d56");

	MODULE_FIRMWARE("pcxhr/xlxc222.dat");
	MODULE_FIRMWARE("pcxhr/xlxc924.dat");
	MODULE_FIRMWARE("pcxhr/dspe924.e56");
	MODULE_FIRMWARE("pcxhr/dspb924.b56");
	MODULE_FIRMWARE("pcxhr/dspd222.d56");


	#else /* old style firmware loading */

	/* pcxhr hwdep interface id string */
	#define PCXHR_HWDEP_ID "pcxhr loader"


	static int pcxhr_hwdep_dsp_status(struct snd_hwdep *hw,
	struct snd_hwdep_dsp_status *info)
	{
	struct pcxhr_mgr *mgr = hw->private_data;
	sprintf(info->id, "pcxhr%d", mgr->fw_file_set);
	info->num_dsps = PCXHR_FIRMWARE_FILES_MAX_INDEX;

	if (hw->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX))
	info->chip_ready = 1;

	info->version = PCXHR_DRIVER_VERSION;
	return 0;
	}

	static int pcxhr_hwdep_dsp_load(struct snd_hwdep *hw,
	struct snd_hwdep_dsp_image *dsp)
	{
	struct pcxhr_mgr *mgr = hw->private_data;
	int err;
	struct firmware fw;

	fw.size = dsp->length;
	fw.data = vmalloc(fw.size);
	if (! fw.data) {
	snd_printk(KERN_ERR "pcxhr: cannot allocate dsp image "
	"(%lu bytes)\n", (unsigned long)fw.size);
	return -ENOMEM;
	}
	if (copy_from_user((void *)fw.data, dsp->image, dsp->length)) {
	vfree(fw.data);
	return -EFAULT;
	}
	err = pcxhr_dsp_load(mgr, dsp->index, &fw);
	vfree(fw.data);
	if (err < 0)
	return err;
	mgr->dsp_loaded \|= 1 << dsp->index;
	return 0;
	}

	int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
	{
	int err;
	struct snd_hwdep *hw;

	/* only create hwdep interface for first cardX
	* (see "index" module parameter)
	*/
	err = snd_hwdep_new(mgr->chip[0]->card, PCXHR_HWDEP_ID, 0, &hw);
	if (err < 0)
	return err;

	hw->iface = SNDRV_HWDEP_IFACE_PCXHR;
	hw->private_data = mgr;
	hw->ops.dsp_status = pcxhr_hwdep_dsp_status;
	hw->ops.dsp_load = pcxhr_hwdep_dsp_load;
	hw->exclusive = 1;
	/* stereo cards don't need fw_file_0 -> dsp_loaded = 1 */
	hw->dsp_loaded = mgr->is_hr_stereo ? 1 : 0;
	mgr->dsp_loaded = 0;
	sprintf(hw->name, PCXHR_HWDEP_ID);

	err = snd_card_register(mgr->chip[0]->card);
	if (err < 0)
	return err;
	return 0;
	}

	#endif /* SND_PCXHR_FW_LOADER */