[ALSA] Add PCXHR driver

Modules: Documentation,PCI drivers,Digigram PCXHR driver

Add Digigram PCXHR driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 438 insertions, 0 deletions

diff --git a/sound/pci/pcxhr/pcxhr_hwdep.c b/sound/pci/pcxhr/pcxhr_hwdep.c
new file mode 100644
index 0000000..03517c1
--- /dev/null
+++ b/sound/pci/pcxhr/pcxhr_hwdep.c
@@ -0,0 +1,438 @@
+/*
+ * 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 */