/*
* 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 <sound/driver.h>
#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"
#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
/*
* 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 */
snd_assert((rmh.stat[0] & MASK_FIRST_FIELD) == mgr->playback_chips*2,
return -EINVAL);
/* test 8 or 2 phys in */
snd_assert(((rmh.stat[0] >> (2*FIELD_SIZE)) & MASK_FIRST_FIELD) ==
mgr->capture_chips * 2, return -EINVAL);
/* test max nb substream per board */
snd_assert((rmh.stat[1] & 0x5F) >= card_streams, return -EINVAL);
/* test max nb substream per pipe */
snd_assert(((rmh.stat[1]>>7)&0x5F) >= PCXHR_PLAYBACK_STREAMS, return -EINVAL);
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) + PCXHR_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];
/* 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 available */
else
/* analog addon board not available -> no support for instance */
return -EINVAL;
/* 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 */
pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ); /* a write to IO_NUM_REG_MUTE_OUT mutes! */
rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
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 */
/* 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);
}
/* 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);
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);
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] = {
"xi_1_882.dat",
"xc_1_882.dat",
"e321_512.e56",
"b321_512.b56",
"d321_512.d56"
};
char path[32];
const struct firmware *fw_entry;
int i, err;
for (i = 0; i < ARRAY_SIZE(fw_files); i++) {
sprintf(path, "pcxhr/%s", fw_files[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;
}
#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)
{
strcpy(info->id, "pcxhr");
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 (%d bytes)\n",
fw.size);
return -ENOMEM;
}
if (copy_from_user(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;
}
static int pcxhr_hwdep_open(struct snd_hwdep *hw, struct file *file)
{
return 0;
}
static int pcxhr_hwdep_release(struct snd_hwdep *hw, struct file *file)
{
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)*/
if ((err = snd_hwdep_new(mgr->chip[0]->card, PCXHR_HWDEP_ID, 0, &hw)) < 0)
return err;
hw->iface = SNDRV_HWDEP_IFACE_PCXHR;
hw->private_data = mgr;
hw->ops.open = pcxhr_hwdep_open;
hw->ops.release = pcxhr_hwdep_release;
hw->ops.dsp_status = pcxhr_hwdep_dsp_status;
hw->ops.dsp_load = pcxhr_hwdep_dsp_load;
hw->exclusive = 1;
mgr->dsp_loaded = 0;
sprintf(hw->name, PCXHR_HWDEP_ID);
if ((err = snd_card_register(mgr->chip[0]->card)) < 0)
return err;
return 0;
}
#endif /* SND_PCXHR_FW_LOADER */
