--- /dev/null
+/*
+ * 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 (%lu bytes)\n",
+ (unsigned long)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 */
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