Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 548 insertions, 0 deletions

diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
new file mode 100644
index 00000000000..04dcefd8b8f
--- /dev/null
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -0,0 +1,548 @@
+/*
+ *  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 Library 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.
+ */
+ 
+/*
+ * Vortex PCM ALSA driver.
+ *
+ * Supports ADB and WT DMA. Unfortunately, WT channels do not run yet.
+ * It remains stuck,and DMA transfers do not happen. 
+ */
+#include <sound/asoundef.h>
+#include <sound/driver.h>
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include "au88x0.h"
+
+#define VORTEX_PCM_TYPE(x) (x->name[40])
+
+/* hardware definition */
+static snd_pcm_hardware_t snd_vortex_playback_hw_adb = {
+	.info =
+	    (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_RESUME |
+	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
+	     SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =
+	    SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
+	    SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW,
+	.rates = SNDRV_PCM_RATE_CONTINUOUS,
+	.rate_min = 5000,
+	.rate_max = 48000,
+	.channels_min = 1,
+#ifdef CHIP_AU8830
+	.channels_max = 4,
+#else
+	.channels_max = 2,
+#endif
+	.buffer_bytes_max = 0x10000,
+	.period_bytes_min = 0x1,
+	.period_bytes_max = 0x1000,
+	.periods_min = 2,
+	.periods_max = 32,
+};
+
+#ifndef CHIP_AU8820
+static snd_pcm_hardware_t snd_vortex_playback_hw_a3d = {
+	.info =
+	    (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_RESUME |
+	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
+	     SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =
+	    SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
+	    SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW,
+	.rates = SNDRV_PCM_RATE_CONTINUOUS,
+	.rate_min = 5000,
+	.rate_max = 48000,
+	.channels_min = 1,
+	.channels_max = 1,
+	.buffer_bytes_max = 0x10000,
+	.period_bytes_min = 0x100,
+	.period_bytes_max = 0x1000,
+	.periods_min = 2,
+	.periods_max = 64,
+};
+#endif
+static snd_pcm_hardware_t snd_vortex_playback_hw_spdif = {
+	.info =
+	    (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_RESUME |
+	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
+	     SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =
+	    SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
+	    SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | SNDRV_PCM_FMTBIT_MU_LAW |
+	    SNDRV_PCM_FMTBIT_A_LAW,
+	.rates =
+	    SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
+	.rate_min = 32000,
+	.rate_max = 48000,
+	.channels_min = 1,
+	.channels_max = 2,
+	.buffer_bytes_max = 0x10000,
+	.period_bytes_min = 0x100,
+	.period_bytes_max = 0x1000,
+	.periods_min = 2,
+	.periods_max = 64,
+};
+
+#ifndef CHIP_AU8810
+static snd_pcm_hardware_t snd_vortex_playback_hw_wt = {
+	.info = (SNDRV_PCM_INFO_MMAP |
+		 SNDRV_PCM_INFO_INTERLEAVED |
+		 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
+	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	.rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS,	// SNDRV_PCM_RATE_48000,
+	.rate_min = 8000,
+	.rate_max = 48000,
+	.channels_min = 1,
+	.channels_max = 2,
+	.buffer_bytes_max = 0x10000,
+	.period_bytes_min = 0x0400,
+	.period_bytes_max = 0x1000,
+	.periods_min = 2,
+	.periods_max = 64,
+};
+#endif
+/* open callback */
+static int snd_vortex_pcm_open(snd_pcm_substream_t * substream)
+{
+	vortex_t *vortex = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	int err;
+	
+	/* Force equal size periods */
+	if ((err =
+	     snd_pcm_hw_constraint_integer(runtime,
+					   SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
+		return err;
+	/* Avoid PAGE_SIZE boundary to fall inside of a period. */
+	if ((err =
+	     snd_pcm_hw_constraint_pow2(runtime, 0,
+					SNDRV_PCM_HW_PARAM_PERIOD_BYTES)) < 0)
+		return err;
+
+	if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
+#ifndef CHIP_AU8820
+		if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_A3D) {
+			runtime->hw = snd_vortex_playback_hw_a3d;
+		}
+#endif
+		if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_SPDIF) {
+			runtime->hw = snd_vortex_playback_hw_spdif;
+			switch (vortex->spdif_sr) {
+			case 32000:
+				runtime->hw.rates = SNDRV_PCM_RATE_32000;
+				break;
+			case 44100:
+				runtime->hw.rates = SNDRV_PCM_RATE_44100;
+				break;
+			case 48000:
+				runtime->hw.rates = SNDRV_PCM_RATE_48000;
+				break;
+			}
+		}
+		if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB
+		    || VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_I2S)
+			runtime->hw = snd_vortex_playback_hw_adb;
+		substream->runtime->private_data = NULL;
+	}
+#ifndef CHIP_AU8810
+	else {
+		runtime->hw = snd_vortex_playback_hw_wt;
+		substream->runtime->private_data = NULL;
+	}
+#endif
+	return 0;
+}
+
+/* close callback */
+static int snd_vortex_pcm_close(snd_pcm_substream_t * substream)
+{
+	//vortex_t *chip = snd_pcm_substream_chip(substream);
+	stream_t *stream = (stream_t *) substream->runtime->private_data;
+
+	// the hardware-specific codes will be here
+	if (stream != NULL) {
+		stream->substream = NULL;
+		stream->nr_ch = 0;
+	}
+	substream->runtime->private_data = NULL;
+	return 0;
+}
+
+/* hw_params callback */
+static int
+snd_vortex_pcm_hw_params(snd_pcm_substream_t * substream,
+			 snd_pcm_hw_params_t * hw_params)
+{
+	vortex_t *chip = snd_pcm_substream_chip(substream);
+	stream_t *stream = (stream_t *) (substream->runtime->private_data);
+	snd_pcm_sgbuf_t *sgbuf;
+	int err;
+
+	// Alloc buffer memory.
+	err =
+	    snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
+	if (err < 0) {
+		printk(KERN_ERR "Vortex: pcm page alloc failed!\n");
+		return err;
+	}
+	//sgbuf = (snd_pcm_sgbuf_t *) substream->runtime->dma_private;
+	sgbuf = snd_pcm_substream_sgbuf(substream);
+	/*
+	   printk(KERN_INFO "Vortex: periods %d, period_bytes %d, channels = %d\n", params_periods(hw_params),
+	   params_period_bytes(hw_params), params_channels(hw_params));
+	 */
+	spin_lock_irq(&chip->lock);
+	// Make audio routes and config buffer DMA.
+	if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
+		int dma, type = VORTEX_PCM_TYPE(substream->pcm);
+		/* Dealloc any routes. */
+		if (stream != NULL)
+			vortex_adb_allocroute(chip, stream->dma,
+					      stream->nr_ch, stream->dir,
+					      stream->type);
+		/* Alloc routes. */
+		dma =
+		    vortex_adb_allocroute(chip, -1,
+					  params_channels(hw_params),
+					  substream->stream, type);
+		if (dma < 0)
+			return dma;
+		stream = substream->runtime->private_data = &chip->dma_adb[dma];
+		stream->substream = substream;
+		/* Setup Buffers. */
+		vortex_adbdma_setbuffers(chip, dma, sgbuf,
+					 params_period_bytes(hw_params),
+					 params_periods(hw_params));
+	}
+#ifndef CHIP_AU8810
+	else {
+		/* if (stream != NULL)
+		   vortex_wt_allocroute(chip, substream->number, 0); */
+		vortex_wt_allocroute(chip, substream->number,
+				     params_channels(hw_params));
+		stream = substream->runtime->private_data =
+		    &chip->dma_wt[substream->number];
+		stream->dma = substream->number;
+		stream->substream = substream;
+		vortex_wtdma_setbuffers(chip, substream->number, sgbuf,
+					params_period_bytes(hw_params),
+					params_periods(hw_params));
+	}
+#endif
+	spin_unlock_irq(&chip->lock);
+	return 0;
+}
+
+/* hw_free callback */
+static int snd_vortex_pcm_hw_free(snd_pcm_substream_t * substream)
+{
+	vortex_t *chip = snd_pcm_substream_chip(substream);
+	stream_t *stream = (stream_t *) (substream->runtime->private_data);
+
+	spin_lock_irq(&chip->lock);
+	// Delete audio routes.
+	if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
+		if (stream != NULL)
+			vortex_adb_allocroute(chip, stream->dma,
+					      stream->nr_ch, stream->dir,
+					      stream->type);
+	}
+#ifndef CHIP_AU8810
+	else {
+		if (stream != NULL)
+			vortex_wt_allocroute(chip, stream->dma, 0);
+	}
+#endif
+	substream->runtime->private_data = NULL;
+	spin_unlock_irq(&chip->lock);
+
+	return snd_pcm_lib_free_pages(substream);
+}
+
+/* prepare callback */
+static int snd_vortex_pcm_prepare(snd_pcm_substream_t * substream)
+{
+	vortex_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	stream_t *stream = (stream_t *) substream->runtime->private_data;
+	int dma = stream->dma, fmt, dir;
+
+	// set up the hardware with the current configuration.
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		dir = 1;
+	else
+		dir = 0;
+	fmt = vortex_alsafmt_aspfmt(runtime->format);
+	spin_lock_irq(&chip->lock);
+	if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
+		vortex_adbdma_setmode(chip, dma, 1, dir, fmt, 0 /*? */ ,
+				      0);
+		vortex_adbdma_setstartbuffer(chip, dma, 0);
+		if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_SPDIF)
+			vortex_adb_setsrc(chip, dma, runtime->rate, dir);
+	}
+#ifndef CHIP_AU8810
+	else {
+		vortex_wtdma_setmode(chip, dma, 1, fmt, 0, 0);
+		// FIXME: Set rate (i guess using vortex_wt_writereg() somehow).
+		vortex_wtdma_setstartbuffer(chip, dma, 0);
+	}
+#endif
+	spin_unlock_irq(&chip->lock);
+	return 0;
+}
+
+/* trigger callback */
+static int snd_vortex_pcm_trigger(snd_pcm_substream_t * substream, int cmd)
+{
+	vortex_t *chip = snd_pcm_substream_chip(substream);
+	stream_t *stream = (stream_t *) substream->runtime->private_data;
+	int dma = stream->dma;
+
+	spin_lock(&chip->lock);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		// do something to start the PCM engine
+		//printk(KERN_INFO "vortex: start %d\n", dma);
+		stream->fifo_enabled = 1;
+		if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
+			vortex_adbdma_resetup(chip, dma);
+			vortex_adbdma_startfifo(chip, dma);
+		}
+#ifndef CHIP_AU8810
+		else {
+			printk(KERN_INFO "vortex: wt start %d\n", dma);
+			vortex_wtdma_startfifo(chip, dma);
+		}
+#endif
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		// do something to stop the PCM engine
+		//printk(KERN_INFO "vortex: stop %d\n", dma);
+		stream->fifo_enabled = 0;
+		if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
+			vortex_adbdma_pausefifo(chip, dma);
+		//vortex_adbdma_stopfifo(chip, dma);
+#ifndef CHIP_AU8810
+		else {
+			printk(KERN_INFO "vortex: wt stop %d\n", dma);
+			vortex_wtdma_stopfifo(chip, dma);
+		}
+#endif
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		//printk(KERN_INFO "vortex: pause %d\n", dma);
+		if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
+			vortex_adbdma_pausefifo(chip, dma);
+#ifndef CHIP_AU8810
+		else
+			vortex_wtdma_pausefifo(chip, dma);
+#endif
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		//printk(KERN_INFO "vortex: resume %d\n", dma);
+		if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
+			vortex_adbdma_resumefifo(chip, dma);
+#ifndef CHIP_AU8810
+		else
+			vortex_wtdma_resumefifo(chip, dma);
+#endif
+		break;
+	default:
+		spin_unlock(&chip->lock);
+		return -EINVAL;
+	}
+	spin_unlock(&chip->lock);
+	return 0;
+}
+
+/* pointer callback */
+static snd_pcm_uframes_t snd_vortex_pcm_pointer(snd_pcm_substream_t * substream)
+{
+	vortex_t *chip = snd_pcm_substream_chip(substream);
+	stream_t *stream = (stream_t *) substream->runtime->private_data;
+	int dma = stream->dma;
+	snd_pcm_uframes_t current_ptr = 0;
+
+	spin_lock(&chip->lock);
+	if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
+		current_ptr = vortex_adbdma_getlinearpos(chip, dma);
+#ifndef CHIP_AU8810
+	else
+		current_ptr = vortex_wtdma_getlinearpos(chip, dma);
+#endif
+	//printk(KERN_INFO "vortex: pointer = 0x%x\n", current_ptr);
+	spin_unlock(&chip->lock);
+	return (bytes_to_frames(substream->runtime, current_ptr));
+}
+
+/* Page callback. */
+/*
+static struct page *snd_pcm_sgbuf_ops_page(snd_pcm_substream_t *substream, unsigned long offset) {
+	
+	
+}
+*/
+/* operators */
+static snd_pcm_ops_t snd_vortex_playback_ops = {
+	.open = snd_vortex_pcm_open,
+	.close = snd_vortex_pcm_close,
+	.ioctl = snd_pcm_lib_ioctl,
+	.hw_params = snd_vortex_pcm_hw_params,
+	.hw_free = snd_vortex_pcm_hw_free,
+	.prepare = snd_vortex_pcm_prepare,
+	.trigger = snd_vortex_pcm_trigger,
+	.pointer = snd_vortex_pcm_pointer,
+	.page = snd_pcm_sgbuf_ops_page,
+};
+
+/*
+*  definitions of capture are omitted here...
+*/
+
+static char *vortex_pcm_prettyname[VORTEX_PCM_LAST] = {
+	"AU88x0 ADB",
+	"AU88x0 SPDIF",
+	"AU88x0 A3D",
+	"AU88x0 WT",
+	"AU88x0 I2S",
+};
+static char *vortex_pcm_name[VORTEX_PCM_LAST] = {
+	"adb",
+	"spdif",
+	"a3d",
+	"wt",
+	"i2s",
+};
+
+/* SPDIF kcontrol */
+
+static int snd_vortex_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_vortex_spdif_mask_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0xff;
+	ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
+	return 0;
+}
+
+static int snd_vortex_spdif_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.iec958.status[0] = 0x00;
+	ucontrol->value.iec958.status[1] = IEC958_AES1_CON_ORIGINAL|IEC958_AES1_CON_DIGDIGCONV_ID;
+	ucontrol->value.iec958.status[2] = 0x00;
+	switch (vortex->spdif_sr) {
+	case 32000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_32000; break;
+	case 44100: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_44100; break;
+	case 48000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_48000; break;
+	}
+	return 0;
+}
+
+static int snd_vortex_spdif_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
+	int spdif_sr = 48000;
+	switch (ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) {
+	case IEC958_AES3_CON_FS_32000: spdif_sr = 32000; break;
+	case IEC958_AES3_CON_FS_44100: spdif_sr = 44100; break;
+	case IEC958_AES3_CON_FS_48000: spdif_sr = 48000; break;
+	}
+	if (spdif_sr == vortex->spdif_sr)
+		return 0;
+	vortex->spdif_sr = spdif_sr;
+	vortex_spdif_init(vortex, vortex->spdif_sr, 1);
+	return 1;
+}
+
+/* spdif controls */
+static snd_kcontrol_new_t snd_vortex_mixer_spdif[] __devinitdata = {
+	{
+		.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+		.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
+		.info =		snd_vortex_spdif_info,
+		.get =		snd_vortex_spdif_get,
+		.put =		snd_vortex_spdif_put,
+	},
+	{
+		.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+		.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+		.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
+		.info =		snd_vortex_spdif_info,
+		.get =		snd_vortex_spdif_mask_get
+	},
+};
+
+/* create a pcm device */
+static int __devinit snd_vortex_new_pcm(vortex_t * chip, int idx, int nr)
+{
+	snd_pcm_t *pcm;
+	snd_kcontrol_t *kctl;
+	int i;
+	int err, nr_capt;
+
+	if ((chip == 0) || (idx < 0) || (idx > VORTEX_PCM_LAST))
+		return -ENODEV;
+
+	/* idx indicates which kind of PCM device. ADB, SPDIF, I2S and A3D share the 
+	 * same dma engine. WT uses it own separate dma engine whcih cant capture. */
+	if (idx == VORTEX_PCM_ADB)
+		nr_capt = nr;
+	else
+		nr_capt = 0;
+	if ((err =
+	     snd_pcm_new(chip->card, vortex_pcm_prettyname[idx], idx, nr,
+			 nr_capt, &pcm)) < 0)
+		return err;
+	strcpy(pcm->name, vortex_pcm_name[idx]);
+	chip->pcm[idx] = pcm;
+	// This is an evil hack, but it saves a lot of duplicated code.
+	VORTEX_PCM_TYPE(pcm) = idx;
+	pcm->private_data = chip;
+	/* set operators */
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+			&snd_vortex_playback_ops);
+	if (idx == VORTEX_PCM_ADB)
+		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+				&snd_vortex_playback_ops);
+	
+	/* pre-allocation of Scatter-Gather buffers */
+	
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+					      snd_dma_pci_data(chip->pci_dev),
+					      0x10000, 0x10000);
+
+	if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_SPDIF) {
+		for (i = 0; i < ARRAY_SIZE(snd_vortex_mixer_spdif); i++) {
+			kctl = snd_ctl_new1(&snd_vortex_mixer_spdif[i], chip);
+			if (!kctl)
+				return -ENOMEM;
+			if ((err = snd_ctl_add(chip->card, kctl)) < 0)
+				return err;
+		}
+	}
+	return 0;
+}