[PATCH] ALSA update [6/10] - 2002/07/20

  - added vfree_nocheck()
  - PCM midlevel & EMU10K1 - added support for SG buffer
  - CS4236 - added new ISA PnP ID
  - HDSP - fixed rate rules (OSS emulation works)

include/sound/core.h

@@ -243,8 +243,10 @@ void snd_hidden_vfree(void *obj);
 #define kfree_nocheck(obj) snd_wrapper_kfree(obj)
 #define vmalloc(size) snd_hidden_vmalloc(size)
 #define vfree(obj) snd_hidden_vfree(obj)
+#define vfree_nocheck(obj) snd_wrapper_vfree(obj)
 #else
 #define kfree_nocheck(obj) kfree(obj)
+#define vfree_nocheck(obj) vfree(obj)
 #endif
 void *snd_kcalloc(size_t size, int flags);
 char *snd_kmalloc_strdup(const char *string, int flags);

include/sound/emu10k1.h

@@ -26,6 +26,7 @@
 #ifdef __KERNEL__
 
 #include "pcm.h"
+#include "pcm_sgbuf.h"
 #include "rawmidi.h"
 #include "hwdep.h"
 #include "ac97_codec.h"
@@ -1043,7 +1044,7 @@ unsigned int snd_emu10k1_rate_to_pitch(unsigned int rate);
 unsigned char snd_emu10k1_sum_vol_attn(unsigned int value);
 
 /* memory allocation */
-snd_util_memblk_t *snd_emu10k1_alloc_pages(emu10k1_t *emu, dma_addr_t addr, unsigned long size);
+snd_util_memblk_t *snd_emu10k1_alloc_pages(emu10k1_t *emu, struct snd_sg_buf *sgbuf);
 int snd_emu10k1_free_pages(emu10k1_t *emu, snd_util_memblk_t *blk);
 snd_util_memblk_t *snd_emu10k1_synth_alloc(emu10k1_t *emu, unsigned int size);
 int snd_emu10k1_synth_free(emu10k1_t *emu, snd_util_memblk_t *blk);

include/sound/pcm.h

@@ -96,6 +96,7 @@ typedef struct _snd_pcm_ops {
 		    void *buf, snd_pcm_uframes_t count);
 	int (*silence)(snd_pcm_substream_t *substream, int channel, 
 		       snd_pcm_uframes_t pos, snd_pcm_uframes_t count);
+	void *(*page)(snd_pcm_substream_t *substream, unsigned long offset);
 } snd_pcm_ops_t;
 
 /*
@@ -771,6 +772,9 @@ int snd_pcm_hw_constraint_step(snd_pcm_runtime_t *runtime,
 			       unsigned int cond,
 			       snd_pcm_hw_param_t var,
 			       unsigned long step);
+int snd_pcm_hw_constraint_pow2(snd_pcm_runtime_t *runtime,
+			       unsigned int cond,
+			       snd_pcm_hw_param_t var);
 int snd_pcm_hw_rule_add(snd_pcm_runtime_t *runtime,
 			unsigned int cond,
 			int var,

include/sound/pcm_sgbuf.h

+#ifndef __SOUND_PCM_SGBUF_H
+#define __SOUND_PCM_SGBUF_H
+
+/*
+ * Scatter-Gather PCM access
+ *
+ *  Copyright (c) by Takashi Iwai <tiwai@suse.de>
+ *
+ *   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
+ *
+ */
+
+struct snd_sg_page {
+	void *buf;
+	dma_addr_t addr;
+};
+
+struct snd_sg_buf {
+	int size;	/* allocated byte size (= runtime->dma_bytes) */
+	int pages;	/* allocated pages */
+	int tblsize;	/* allocated table size */
+	struct snd_sg_page *table;
+	struct pci_dev *pci;
+};
+
+typedef struct snd_sg_buf snd_pcm_sgbuf_t; /* for magic cast */
+
+/*
+ * return the pages matching with the given byte size
+ */
+static inline unsigned int snd_pcm_sgbuf_pages(size_t size)
+{
+	return (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+}
+
+
+int snd_pcm_sgbuf_init(snd_pcm_substream_t *substream, struct pci_dev *pci, int tblsize);
+int snd_pcm_sgbuf_delete(snd_pcm_substream_t *substream);
+int snd_pcm_sgbuf_alloc(snd_pcm_substream_t *substream, size_t size);
+int snd_pcm_sgbuf_free(snd_pcm_substream_t *substream);
+
+int snd_pcm_sgbuf_ops_copy_playback(snd_pcm_substream_t *substream, int channel, snd_pcm_uframes_t hwoff, void *buf, snd_pcm_uframes_t count);
+int snd_pcm_sgbuf_ops_copy_capture(snd_pcm_substream_t *substream, int channel, snd_pcm_uframes_t hwoff, void *buf, snd_pcm_uframes_t count);
+int snd_pcm_sgbuf_ops_silence(snd_pcm_substream_t *substream, int channel, snd_pcm_uframes_t hwoff, snd_pcm_uframes_t count);
+void *snd_pcm_sgbuf_ops_page(snd_pcm_substream_t *substream, unsigned long offset);
+
+
+#endif /* __SOUND_PCM_SGBUF_H */

include/sound/sndmagic.h

@@ -61,6 +61,7 @@ static inline int _snd_magic_bad(void *obj, unsigned long magic)
 #define snd_pcm_proc_private_t_magic		0xa15a0104
 #define snd_pcm_oss_file_t_magic		0xa15a0105
 #define snd_mixer_oss_t_magic			0xa15a0106
+#define snd_pcm_sgbuf_t_magic			0xa15a0107
 
 #define snd_info_private_data_t_magic		0xa15a0201
 #define snd_ctl_file_t_magic			0xa15a0301

include/sound/version.h

 /* include/version.h.  Generated automatically by configure.  */
 #define CONFIG_SND_VERSION "0.9.0rc2"
-#define CONFIG_SND_DATE " (Wed Jul 17 10:56:41 2002 UTC)"
+#define CONFIG_SND_DATE " (Sat Jul 20 07:16:41 2002 UTC)"

sound/core/Makefile

@@ -3,7 +3,8 @@
 # Copyright (c) 1999,2001 by Jaroslav Kysela <perex@suse.cz>
 #
 
-export-objs  := sound.o pcm.o pcm_lib.o rawmidi.o timer.o hwdep.o
+export-objs  := sound.o pcm.o pcm_lib.o rawmidi.o timer.o hwdep.o \
+                pcm_sgbuf.o
 
 snd-objs     := sound.o init.o isadma.o memory.o info.o control.o misc.o \
                 device.o wrappers.o
@@ -12,7 +13,7 @@ snd-objs     += sound_oss.o info_oss.o
 endif
 
 snd-pcm-objs := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \
-		pcm_memory.o
+		pcm_memory.o pcm_sgbuf.o
 
 snd-rawmidi-objs  := rawmidi.o
 snd-timer-objs    := timer.o

sound/core/control.c

@@ -21,6 +21,7 @@
 
 #define __NO_VERSION__
 #include <sound/driver.h>
+#include <linux/threads.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>

sound/core/pcm_lib.c

@@ -960,6 +960,26 @@ int snd_pcm_hw_constraint_step(snd_pcm_runtime_t *runtime,
 				   var, -1);
 }
 
+static int snd_pcm_hw_rule_pow2(snd_pcm_hw_params_t *params, snd_pcm_hw_rule_t *rule)
+{
+	static int pow2_sizes[] = {
+		1<<0, 1<<1, 1<<2, 1<<3, 1<<4, 1<<5, 1<<6, 1<<7,
+		1<<8, 1<<9, 1<<10, 1<<11, 1<<12, 1<<13, 1<<14, 1<<15,
+		1<<16, 1<<17, 1<<18, 1<<19, 1<<20, 1<<21, 1<<22, 1<<23,
+		1<<24, 1<<25, 1<<26, 1<<27, 1<<28, 1<<29, 1<<30
+	};
+	return snd_interval_list(hw_param_interval(params, rule->var),
+				 sizeof(pow2_sizes)/sizeof(int), pow2_sizes, 0);
+}		
+
+int snd_pcm_hw_constraint_pow2(snd_pcm_runtime_t *runtime,
+			       unsigned int cond,
+			       snd_pcm_hw_param_t var)
+{
+	return snd_pcm_hw_rule_add(runtime, cond, var, 
+				   snd_pcm_hw_rule_pow2, NULL,
+				   var, -1);
+}
 
 /* To use the same code we have in alsa-lib */
 #define snd_pcm_t snd_pcm_substream_t
@@ -2364,6 +2384,7 @@ EXPORT_SYMBOL(snd_pcm_hw_constraint_ratdens);
 EXPORT_SYMBOL(snd_pcm_hw_constraint_msbits);
 EXPORT_SYMBOL(snd_pcm_hw_constraint_minmax);
 EXPORT_SYMBOL(snd_pcm_hw_constraint_integer);
+EXPORT_SYMBOL(snd_pcm_hw_constraint_pow2);
 EXPORT_SYMBOL(snd_pcm_hw_rule_add);
 EXPORT_SYMBOL(snd_pcm_set_ops);
 EXPORT_SYMBOL(snd_pcm_set_sync);

sound/core/pcm_native.c

@@ -2631,6 +2631,7 @@ static unsigned long snd_pcm_mmap_data_nopage(struct vm_area_struct *area, unsig
 	snd_pcm_runtime_t *runtime;
 	unsigned long offset;
 	struct page * page;
+	void *vaddr;
 	size_t dma_bytes;
 	
 	if (substream == NULL)
@@ -2646,7 +2647,13 @@ static unsigned long snd_pcm_mmap_data_nopage(struct vm_area_struct *area, unsig
 	dma_bytes = PAGE_ALIGN(runtime->dma_bytes);
 	if (offset > dma_bytes - PAGE_SIZE)
 		return NOPAGE_SIGBUS;
-	page = virt_to_page(runtime->dma_area + offset);
+	if (substream->ops->page) {
+		vaddr = substream->ops->page(substream, offset);
+		if (! vaddr)
+			return NOPAGE_OOM;
+	} else
+		vaddr = runtime->dma_area + offset;
+	page = virt_to_page(vaddr);
 	get_page(page);
 #ifndef LINUX_2_2
 	return page;

sound/core/pcm_sgbuf.c

+/*
+ * Scatter-Gather PCM access
+ *
+ *  Copyright (c) by Takashi Iwai <tiwai@suse.de>
+ *
+ *   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
+ *
+ */
+
+#define __NO_VERSION__
+#include <sound/driver.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_sgbuf.h>
+
+
+/* table entries are align to 32 */
+#define SGBUF_TBL_ALIGN		32
+#define sgbuf_align_table(tbl)	((((tbl) + SGBUF_TBL_ALIGN - 1) / SGBUF_TBL_ALIGN) * SGBUF_TBL_ALIGN)
+
+/*
+ * shrink to the given pages.
+ * free the unused pages
+ */
+static void sgbuf_shrink(struct snd_sg_buf *sgbuf, int pages)
+{
+	snd_assert(sgbuf, return);
+	if (! sgbuf->table)
+		return;
+	while (sgbuf->pages > pages) {
+		sgbuf->pages--;
+		snd_free_pci_pages(sgbuf->pci, PAGE_SIZE,
+				   sgbuf->table[sgbuf->pages].buf,
+				   sgbuf->table[sgbuf->pages].addr);
+	}
+}
+
+/*
+ * initialize the sg buffer
+ * assigned to substream->dma_private.
+ * initialize the table with the given size.
+ */
+int snd_pcm_sgbuf_init(snd_pcm_substream_t *substream, struct pci_dev *pci, int tblsize)
+{
+	struct snd_sg_buf *sgbuf;
+
+	tblsize = sgbuf_align_table(tblsize);
+	sgbuf = snd_magic_kcalloc(snd_pcm_sgbuf_t, 0, GFP_KERNEL);
+	if (! sgbuf)
+		return -ENOMEM;
+	substream->dma_private = sgbuf;
+	sgbuf->pci = pci;
+	sgbuf->pages = 0;
+	sgbuf->tblsize = tblsize;
+	sgbuf->table = kmalloc(sizeof(struct snd_sg_page) * tblsize, GFP_KERNEL);
+	if (! sgbuf->table) {
+		snd_pcm_sgbuf_free(substream);
+		return -ENOMEM;
+	}
+	memset(sgbuf->table, 0, sizeof(struct snd_sg_page) * tblsize);
+	return 0;
+}
+
+/*
+ * release all pages and free the sgbuf instance
+ */
+int snd_pcm_sgbuf_delete(snd_pcm_substream_t *substream)
+{
+	struct snd_sg_buf *sgbuf;
+
+	sgbuf = snd_magic_cast(snd_pcm_sgbuf_t, substream->dma_private, return -EINVAL);
+	sgbuf_shrink(sgbuf, 0);
+	if (sgbuf->table)
+		kfree(sgbuf->table);
+	snd_magic_kfree(sgbuf);
+	substream->dma_private = NULL;
+	return 0;
+}
+
+/*
+ * allocate sg buffer table with the given byte size.
+ * if the buffer table already exists, try to resize it.
+ * call this from hw_params callback.
+ */
+int snd_pcm_sgbuf_alloc(snd_pcm_substream_t *substream, size_t size)
+{
+	struct snd_sg_buf *sgbuf;
+	unsigned int pages;
+	unsigned int tblsize;
+	int changed = 0;
+
+	sgbuf = snd_magic_cast(snd_pcm_sgbuf_t, substream->dma_private, return -EINVAL);
+	pages = snd_pcm_sgbuf_pages(size);
+	tblsize = sgbuf_align_table(pages);
+	if (pages < sgbuf->pages) {
+		/* release unsed pages */
+		sgbuf_shrink(sgbuf, pages);
+		substream->runtime->dma_bytes = size;
+		return 1; /* changed */
+	} else if (pages > sgbuf->tblsize) {
+		/* bigger than existing one.  reallocate the table. */
+		struct snd_sg_page *table;
+		table = kmalloc(sizeof(*table) * tblsize, GFP_KERNEL);
+		if (! table)
+			return -ENOMEM;
+		memcpy(table, sgbuf->table, sizeof(*table) * sgbuf->tblsize);
+		kfree(sgbuf->table);
+		sgbuf->table = table;
+		sgbuf->tblsize = tblsize;
+	}
+	/* allocate each page */
+	while (sgbuf->pages < pages) {
+		void *ptr;
+		dma_addr_t addr;
+		ptr = snd_malloc_pci_pages(sgbuf->pci, PAGE_SIZE, &addr);
+		if (! ptr)
+			return -ENOMEM;
+		sgbuf->table[sgbuf->pages].buf = ptr;
+		sgbuf->table[sgbuf->pages].addr = addr;
+		sgbuf->pages++;
+		changed = 1;
+	}
+	sgbuf->size = size;
+	substream->runtime->dma_bytes = size;
+	return changed;
+}
+
+/*
+ * free the sg buffer
+ * the table is kept.
+ * call this from hw_free callback.
+ */
+int snd_pcm_sgbuf_free(snd_pcm_substream_t *substream)
+{
+	struct snd_sg_buf *sgbuf;
+
+	sgbuf = snd_magic_cast(snd_pcm_sgbuf_t, substream->dma_private, return -EINVAL);
+	sgbuf_shrink(sgbuf, 0);
+	return 0;
+}
+
+/*
+ * get the page pointer on the given offset
+ * used as the page callback of pcm ops
+ */
+void *snd_pcm_sgbuf_ops_page(snd_pcm_substream_t *substream, unsigned long offset)
+{
+	struct snd_sg_buf *sgbuf;
+	unsigned int idx;
+
+	sgbuf = snd_magic_cast(snd_pcm_sgbuf_t, substream->dma_private, return NULL);
+	idx = offset >> PAGE_SHIFT;
+	if (idx >= sgbuf->pages)
+		return 0;
+	return sgbuf->table[idx].buf;
+}
+
+/*
+ * do copy_from_user to the sg buffer
+ */
+static int copy_from_user_sg_buf(snd_pcm_substream_t *substream,
+				 char *buf, size_t hwoff, ssize_t bytes)
+{
+	int len;
+	char *addr;
+	size_t p = (hwoff >> PAGE_SHIFT) << PAGE_SHIFT;
+	hwoff -= p;
+	len = PAGE_SIZE - hwoff;
+	for (;;) {
+		addr = snd_pcm_sgbuf_ops_page(substream, p);
+		if (! addr)
+			return -EFAULT;
+		if (len > bytes)
+			len = bytes;
+		if (copy_from_user(addr + hwoff, buf, len))
+			return -EFAULT;
+		bytes -= len;
+		if (bytes <= 0)
+			break;
+		buf += len;
+		p += PAGE_SIZE;
+		len = PAGE_SIZE;
+		hwoff = 0;
+	}
+	return 0;
+}
+
+/*
+ * do copy_to_user from the sg buffer
+ */
+static int copy_to_user_sg_buf(snd_pcm_substream_t *substream,
+			       char *buf, size_t hwoff, ssize_t bytes)
+{
+	int len;
+	char *addr;
+	size_t p = (hwoff >> PAGE_SHIFT) << PAGE_SHIFT;
+	hwoff -= p;
+	len = PAGE_SIZE - hwoff;
+	for (;;) {
+		addr = snd_pcm_sgbuf_ops_page(substream, p);
+		if (! addr)
+			return -EFAULT;
+		if (len > bytes)
+			len = bytes;
+		if (copy_to_user(buf, addr + hwoff, len))
+			return -EFAULT;
+		bytes -= len;
+		if (bytes <= 0)
+			break;
+		buf += len;
+		p += PAGE_SIZE;
+		len = PAGE_SIZE;
+		hwoff = 0;
+	}
+	return 0;
+}
+
+/*
+ * set silence on the sg buffer
+ */
+static int set_silence_sg_buf(snd_pcm_substream_t *substream,
+			      size_t hwoff, ssize_t samples)
+{
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	int len, page_len;
+	char *addr;
+	size_t p = (hwoff >> PAGE_SHIFT) << PAGE_SHIFT;
+	hwoff -= p;
+	len = bytes_to_samples(substream->runtime, PAGE_SIZE - hwoff);
+	page_len = bytes_to_samples(substream->runtime, PAGE_SIZE);
+	for (;;) {
+		addr = snd_pcm_sgbuf_ops_page(substream, p);
+		if (! addr)
+			return -EFAULT;
+		if (len > samples)
+			len = samples;
+		snd_pcm_format_set_silence(runtime->format, addr + hwoff, len);
+		samples -= len;
+		if (samples <= 0)
+			break;
+		p += PAGE_SIZE;
+		len = page_len;
+		hwoff = 0;
+	}
+	return 0;
+}
+
+/*
+ * copy callback for playback pcm ops
+ */
+int snd_pcm_sgbuf_ops_copy_playback(snd_pcm_substream_t *substream, int channel,
+				    snd_pcm_uframes_t hwoff, void *buf, snd_pcm_uframes_t count)
+{
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	if (channel < 0) {
+		return copy_from_user_sg_buf(substream, buf, frames_to_bytes(runtime, hwoff), frames_to_bytes(runtime, count));
+	} else {
+		size_t dma_csize = runtime->dma_bytes / runtime->channels;
+		size_t c_ofs = (channel * dma_csize) + samples_to_bytes(runtime, hwoff);
+		return copy_from_user_sg_buf(substream, buf, c_ofs, samples_to_bytes(runtime, count));
+	}
+}
+
+/*
+ * copy callback for capture pcm ops
+ */
+int snd_pcm_sgbuf_ops_copy_capture(snd_pcm_substream_t *substream, int channel,
+				   snd_pcm_uframes_t hwoff, void *buf, snd_pcm_uframes_t count)
+{
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	if (channel < 0) {
+		return copy_to_user_sg_buf(substream, buf, frames_to_bytes(runtime, hwoff), frames_to_bytes(runtime, count));
+	} else {
+		size_t dma_csize = runtime->dma_bytes / runtime->channels;
+		size_t c_ofs = (channel * dma_csize) + samples_to_bytes(runtime, hwoff);
+		return copy_to_user_sg_buf(substream, buf, c_ofs, samples_to_bytes(runtime, count));
+	}
+}
+
+/*
+ * silence callback for pcm ops
+ */
+int snd_pcm_sgbuf_ops_silence(snd_pcm_substream_t *substream, int channel,
+			      snd_pcm_uframes_t hwoff, snd_pcm_uframes_t count)
+{
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	if (channel < 0) {
+		return set_silence_sg_buf(substream, frames_to_bytes(runtime, hwoff),
+					  frames_to_bytes(runtime, count));
+	} else {
+		size_t dma_csize = runtime->dma_bytes / runtime->channels;
+		size_t c_ofs = (channel * dma_csize) + samples_to_bytes(runtime, hwoff);
+		return set_silence_sg_buf(substream, c_ofs, samples_to_bytes(runtime, count));
+	}
+}
+
+
+/*
+ *  Exported symbols
+ */
+EXPORT_SYMBOL(snd_pcm_sgbuf_init);
+EXPORT_SYMBOL(snd_pcm_sgbuf_delete);
+EXPORT_SYMBOL(snd_pcm_sgbuf_alloc);
+EXPORT_SYMBOL(snd_pcm_sgbuf_free);
+EXPORT_SYMBOL(snd_pcm_sgbuf_ops_copy_playback);
+EXPORT_SYMBOL(snd_pcm_sgbuf_ops_copy_capture);
+EXPORT_SYMBOL(snd_pcm_sgbuf_ops_silence);
+EXPORT_SYMBOL(snd_pcm_sgbuf_ops_page);

sound/core/rtctimer.c

@@ -23,6 +23,7 @@
 #include <sound/driver.h>
 #include <linux/init.h>
 #include <linux/time.h>
+#include <linux/threads.h>
 #include <linux/interrupt.h>
 #include <sound/core.h>
 #include <sound/timer.h>

sound/core/sound.c

@@ -501,6 +501,8 @@ EXPORT_SYMBOL(snd_printd);
 #ifdef CONFIG_SND_DEBUG_MEMORY
 EXPORT_SYMBOL(snd_wrapper_kmalloc);
 EXPORT_SYMBOL(snd_wrapper_kfree);
+EXPORT_SYMBOL(snd_wrapper_vmalloc);
+EXPORT_SYMBOL(snd_wrapper_vfree);
 #endif
 #ifdef HACK_PCI_ALLOC_CONSISTENT
 EXPORT_SYMBOL(snd_pci_hack_alloc_consistent);

sound/isa/cs423x/cs4236.c

@@ -227,6 +227,8 @@ static struct isapnp_card_id snd_card_pnpids[] __devinitdata = {
 	ISAPNP_CS4232('C','S','C',0x4336,0x0000,0x0010,0x0003),
 	/* Typhoon Soundsystem PnP - CS4236B */
 	ISAPNP_CS4232('C','S','C',0x4536,0x0000,0x0010,0x0003),
+	/* Crystal CX4235-XQ3 EP - CS4235 */
+	ISAPNP_CS4232('C','S','C',0x4625,0x0100,0x0110,0x0103),
 	/* TerraTec AudioSystem EWS64XL - CS4236B */
 	ISAPNP_CS4232('C','S','C',0xa836,0xa800,0xa810,0xa803),
 	/* TerraTec AudioSystem EWS64XL - CS4236B */

sound/pci/Config.help

@@ -7,6 +7,10 @@ CONFIG_SND_CS46XX
 
 CONFIG_SND_CS46XX_ACCEPT_VALID
   Say 'Y' to allow sample resolution for mmap() transfers.
+  Note: This can be also specified via module option snd_mmap_valid.
+
+CONFIG_SND_CS4281
+  Say 'Y' or 'M' to include support for Cirrus Logic CS4281.
 
 CONFIG_SND_EMU10K1
   Say 'Y' or 'M' to include support for Sound Blaster PCI 512, Live!,

sound/pci/Config.in

@@ -8,7 +8,7 @@ dep_tristate 'Cirrus Logic (Sound Fusion) CS4280/CS461x/CS462x/CS463x' CONFIG_SN
 if [ "$CONFIG_SND_CS46XX" != "n" ]; then
   bool       '  Cirrus Logic (Sound Fusion) MMAP support for OSS' CONFIG_SND_CS46XX_ACCEPT_VALID
 fi
-dep_tristate 'Cirrus Logic (Sound Fusion) CS4281' CONFIG_SND_CS4281 $CONFIG_SND
+dep_tristate 'Cirrus Logic CS4281' CONFIG_SND_CS4281 $CONFIG_SND
 dep_tristate 'EMU10K1 (SB Live!, E-mu APS)' CONFIG_SND_EMU10K1 $CONFIG_SND
 dep_tristate 'Korg 1212 IO' CONFIG_SND_KORG1212 $CONFIG_SND
 dep_tristate 'NeoMagic NM256AV/ZX' CONFIG_SND_NM256 $CONFIG_SND

sound/pci/emu10k1/emupcm.c

@@ -32,6 +32,7 @@
 #include <linux/init.h>
 #include <sound/core.h>
 #include <sound/emu10k1.h>
+#include <sound/pcm_sgbuf.h>
 
 #define chip_t emu10k1_t
 
@@ -358,13 +359,13 @@ static int snd_emu10k1_playback_hw_params(snd_pcm_substream_t * substream,
 
 	if ((err = snd_emu10k1_pcm_channel_alloc(epcm, params_channels(hw_params))) < 0)
 		return err;
-	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
+	if ((err = snd_pcm_sgbuf_alloc(substream, params_buffer_bytes(hw_params))) < 0)
 		return err;
 	if (err > 0) {	/* change */
 		snd_util_memblk_t *memblk;
 		if (epcm->memblk != NULL)
 			snd_emu10k1_free_pages(emu, epcm->memblk);
-		memblk = snd_emu10k1_alloc_pages(emu, runtime->dma_addr, runtime->dma_bytes);
+		memblk = snd_emu10k1_alloc_pages(emu, (struct snd_sg_buf *)substream->dma_private);
 		if ((epcm->memblk = memblk) == NULL || ((emu10k1_memblk_t *)memblk)->mapped_page < 0) {
 			epcm->start_addr = 0;
 			return -ENOMEM;
@@ -400,7 +401,7 @@ static int snd_emu10k1_playback_hw_free(snd_pcm_substream_t * substream)
 		epcm->memblk = NULL;
 		epcm->start_addr = 0;
 	}
-	snd_pcm_lib_free_pages(substream);
+	snd_pcm_sgbuf_free(substream);
 	return 0;
 }
 
@@ -778,6 +779,10 @@ static int snd_emu10k1_playback_open(snd_pcm_substream_t * substream)
 	runtime->private_data = epcm;
 	runtime->private_free = snd_emu10k1_pcm_free_substream;
 	runtime->hw = snd_emu10k1_playback;
+	if ((err = snd_pcm_sgbuf_init(substream, emu->pci, 32)) < 0) {
+		snd_magic_kfree(epcm);
+		return err;
+	}
 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
 		snd_magic_kfree(epcm);
 		return err;
@@ -804,6 +809,7 @@ static int snd_emu10k1_playback_close(snd_pcm_substream_t * substream)
 	emu10k1_pcm_mixer_t *mix = &emu->pcm_mixer[substream->number];
 
 	mix->epcm = NULL;
+	snd_pcm_sgbuf_delete(substream);
 	snd_emu10k1_pcm_mixer_notify(emu->card, mix, 0);
 	return 0;
 }
@@ -942,6 +948,9 @@ static snd_pcm_ops_t snd_emu10k1_playback_ops = {
 	prepare:		snd_emu10k1_playback_prepare,
 	trigger:		snd_emu10k1_playback_trigger,
 	pointer:		snd_emu10k1_playback_pointer,
+	copy:			snd_pcm_sgbuf_ops_copy_playback,
+	silence:		snd_pcm_sgbuf_ops_silence,
+	page:			snd_pcm_sgbuf_ops_page,
 };
 
 static snd_pcm_ops_t snd_emu10k1_capture_ops = {
@@ -959,7 +968,6 @@ static void snd_emu10k1_pcm_free(snd_pcm_t *pcm)
 {
 	emu10k1_t *emu = snd_magic_cast(emu10k1_t, pcm->private_data, return);
 	emu->pcm = NULL;
-	snd_pcm_lib_preallocate_free_for_all(pcm);
 }
 
 int __devinit snd_emu10k1_pcm(emu10k1_t * emu, int device, snd_pcm_t ** rpcm)
@@ -984,8 +992,6 @@ int __devinit snd_emu10k1_pcm(emu10k1_t * emu, int device, snd_pcm_t ** rpcm)
 	strcpy(pcm->name, "EMU10K1");
 	emu->pcm = pcm;
 
-	snd_pcm_lib_preallocate_pci_pages_for_all(emu->pci, pcm, 64*1024, 128*1024);
-
 	if (rpcm)
 		*rpcm = pcm;
 

sound/pci/emu10k1/memory.c

@@ -289,22 +289,19 @@ int snd_emu10k1_memblk_map(emu10k1_t *emu, emu10k1_memblk_t *blk)
  * page allocation for DMA
  */
 snd_util_memblk_t *
-snd_emu10k1_alloc_pages(emu10k1_t *emu, dma_addr_t addr, unsigned long size)
+snd_emu10k1_alloc_pages(emu10k1_t *emu, struct snd_sg_buf *sgbuf)
 {
 	snd_util_memhdr_t *hdr;
 	emu10k1_memblk_t *blk;
-	int page, err;
+	int page, err, idx;
 
 	snd_assert(emu, return NULL);
-	snd_assert(size > 0 && size < MAXPAGES * EMUPAGESIZE, return NULL);
+	snd_assert(sgbuf->size > 0 && sgbuf->size < MAXPAGES * EMUPAGESIZE, return NULL);
 	hdr = emu->memhdr;
 	snd_assert(hdr, return NULL);
 
-	if (!is_valid_page(addr))
-		return NULL;
-
 	down(&hdr->block_mutex);
-	blk = search_empty(emu, size);
+	blk = search_empty(emu, sgbuf->size);
 	if (blk == NULL) {
 		up(&hdr->block_mutex);
 		return NULL;
@@ -312,10 +309,15 @@ snd_emu10k1_alloc_pages(emu10k1_t *emu, dma_addr_t addr, unsigned long size)
 	/* fill buffer addresses but pointers are not stored so that
 	 * snd_free_pci_pages() is not called in in synth_free()
 	 */
-	for (page = blk->first_page; page <= blk->last_page; page++) {
+	idx = 0;
+	for (page = blk->first_page; page <= blk->last_page; page++, idx++) {
+		dma_addr_t addr = sgbuf->table[idx].addr;
+		if (! is_valid_page(addr)) {
+			up(&hdr->block_mutex);
+			return NULL;
+		}
 		emu->page_addr_table[page] = addr;
 		emu->page_ptr_table[page] = NULL;
-		addr += PAGE_SIZE;
 	}
 
 	/* set PTB entries */

sound/pci/rme9652/hdsp.c

@@ -482,7 +482,6 @@ static inline int hdsp_write_gain(hdsp_t *hdsp, unsigned int addr, unsigned shor
 	if (hdsp_fifo_wait(hdsp, 127, HDSP_LONG_WAIT)) {
 		return -1;
 	}
-	
 	hdsp_write (hdsp, HDSP_fifoData, ad);
 	hdsp->mixer_matrix[addr] = data;
 
@@ -854,10 +853,7 @@ static int snd_hdsp_midi_output_write (hdsp_midi_t *hmidi)
 		}
 
 		if (clear_timer && hmidi->istimer && --hmidi->istimer <= 0) {
-			printk ("removing timer because there is nothing to do\n");
-			if (del_timer(&hmidi->timer)) {
-				printk ("not removed\n");
-			}
+			del_timer(&hmidi->timer);
 		} 
 	}
 
@@ -956,16 +952,12 @@ static void snd_hdsp_midi_output_trigger(snd_rawmidi_substream_t * substream, in
 			hmidi->timer.function = snd_hdsp_midi_output_timer;
 			hmidi->timer.data = (unsigned long) hmidi;
 			hmidi->timer.expires = 1 + jiffies;
-			printk ("add timer from output trigger\n");
 			add_timer(&hmidi->timer);
 			hmidi->istimer++;
 		}
 	} else {
 		if (hmidi->istimer && --hmidi->istimer <= 0) {
-			printk ("remove timer in trigger off\n");
-			if (del_timer (&hmidi->timer)) {
-				printk ("not removed\n");
-			}
+			del_timer (&hmidi->timer);
 		}
 	}
 	spin_unlock_irqrestore (&hmidi->lock, flags);
@@ -2560,7 +2552,7 @@ static snd_pcm_hardware_t snd_hdsp_playback_subinfo =
 				 SNDRV_PCM_INFO_SYNC_START |
 				 SNDRV_PCM_INFO_DOUBLE),
 	formats:		SNDRV_PCM_FMTBIT_S32_LE,
-	rates:			(SNDRV_PCM_RATE_32000 | 
+	rates:			(SNDRV_PCM_RATE_32000 |
 				 SNDRV_PCM_RATE_44100 | 
 				 SNDRV_PCM_RATE_48000 | 
 				 SNDRV_PCM_RATE_64000 | 
@@ -2635,7 +2627,7 @@ static int snd_hdsp_hw_rule_channels_rate(snd_pcm_hw_params_t *params,
 			integer: 1,
 		};
 		return snd_interval_refine(c, &t);
-	} else if (r->max < 88200) {
+	} else if (r->max < 64000) {
 		snd_interval_t t = {
 			min: hdsp->ss_channels,
 			max: hdsp->ss_channels,
@@ -2654,14 +2646,14 @@ static int snd_hdsp_hw_rule_rate_channels(snd_pcm_hw_params_t *params,
 	snd_interval_t *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
 	if (c->min >= hdsp->ss_channels) {
 		snd_interval_t t = {
-			min: 44100,
+			min: 32000,
 			max: 48000,
 			integer: 1,
 		};
 		return snd_interval_refine(r, &t);
 	} else if (c->max <= hdsp->ds_channels) {
 		snd_interval_t t = {
-			min: 88200,
+			min: 64000,
 			max: 96000,
 			integer: 1,
 		};