[ALSA] Add PS3 sound driver

The patch adds the support for the sound feature of PS3 - the digital
output of HDMI and SPDIF optical, and the analog output of AV multi.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/ppc/Kconfig

@@ -33,3 +33,23 @@ config SND_POWERMAC_AUTO_DRC
 	  option.
 
 endmenu
+
+menu "ALSA PowerPC devices"
+	depends on SND!=n && ( PPC64 || PPC32 )
+
+config SND_PS3
+	tristate "PS3 Audio support"
+	depends on SND && PS3_PS3AV
+	select SND_PCM
+	default m
+	help
+	  Say Y here to include support for audio on the PS3
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd_ps3.
+
+config SND_PS3_DEFAULT_START_DELAY
+	int "Startup delay time in ms"
+	depends on SND_PS3
+	default "2000"
+endmenu

sound/ppc/Makefile

@@ -6,4 +6,5 @@
 snd-powermac-objs := powermac.o pmac.o awacs.o burgundy.o daca.o tumbler.o keywest.o beep.o
 
 # Toplevel Module Dependency
-obj-$(CONFIG_SND_POWERMAC) += snd-powermac.o
+obj-$(CONFIG_SND_POWERMAC)	+= snd-powermac.o
+obj-$(CONFIG_SND_PS3)		+= snd_ps3.o

sound/ppc/snd_ps3.h

@@ -0,0 +1,135 @@
+/*
+ * Audio support for PS3
+ * Copyright (C) 2007 Sony Computer Entertainment Inc.
+ * All rights reserved.
+ * Copyright 2006, 2007 Sony Corporation
+ *
+ * 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; version 2 of the Licence.
+ *
+ * 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
+ */
+
+#if !defined(_SND_PS3_H_)
+#define _SND_PS3_H_
+
+#include <linux/irqreturn.h>
+
+#define SND_PS3_DRIVER_NAME "snd_ps3"
+
+enum snd_ps3_out_channel {
+	SND_PS3_OUT_SPDIF_0,
+	SND_PS3_OUT_SPDIF_1,
+	SND_PS3_OUT_SERIAL_0,
+	SND_PS3_OUT_DEVS
+};
+
+enum snd_ps3_dma_filltype {
+	SND_PS3_DMA_FILLTYPE_FIRSTFILL,
+	SND_PS3_DMA_FILLTYPE_RUNNING,
+	SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL,
+	SND_PS3_DMA_FILLTYPE_SILENT_RUNNING
+};
+
+enum snd_ps3_ch {
+	SND_PS3_CH_L = 0,
+	SND_PS3_CH_R = 1,
+	SND_PS3_CH_MAX = 2
+};
+
+struct snd_ps3_avsetting_info {
+	uint32_t avs_audio_ch;     /* fixed */
+	uint32_t avs_audio_rate;
+	uint32_t avs_audio_width;
+	uint32_t avs_audio_format; /* fixed */
+	uint32_t avs_audio_source; /* fixed */
+};
+/*
+ * PS3 audio 'card' instance
+ * there should be only ONE hardware.
+ */
+struct snd_ps3_card_info {
+	struct ps3_system_bus_device *ps3_dev;
+	struct snd_card *card;
+
+	struct snd_pcm *pcm;
+	struct snd_pcm_substream *substream;
+
+	/* hvc info */
+	u64 audio_lpar_addr;
+	u64 audio_lpar_size;
+
+	/* registers */
+	void __iomem *mapped_mmio_vaddr;
+
+	/* irq */
+	u64 audio_irq_outlet;
+	unsigned int irq_no;
+
+	/* remember avsetting */
+	struct snd_ps3_avsetting_info avs;
+
+	/* dma buffer management */
+	spinlock_t dma_lock;
+		/* dma_lock start */
+		void * dma_start_vaddr[2]; /* 0 for L, 1 for R */
+		dma_addr_t dma_start_bus_addr[2];
+		size_t dma_buffer_size;
+		void * dma_last_transfer_vaddr[2];
+		void * dma_next_transfer_vaddr[2];
+		int    silent;
+		/* dma_lock end */
+
+	int running;
+
+	/* null buffer */
+	void *null_buffer_start_vaddr;
+	dma_addr_t null_buffer_start_dma_addr;
+
+	/* start delay */
+	unsigned int start_delay;
+
+};
+
+
+/* PS3 audio DMAC block size in bytes */
+#define PS3_AUDIO_DMAC_BLOCK_SIZE (128)
+/* one stage (stereo)  of audio FIFO in bytes */
+#define PS3_AUDIO_FIFO_STAGE_SIZE (256)
+/* how many stages the fifo have */
+#define PS3_AUDIO_FIFO_STAGE_COUNT (8)
+/* fifo size 128 bytes * 8 stages * stereo (2ch) */
+#define PS3_AUDIO_FIFO_SIZE \
+	(PS3_AUDIO_FIFO_STAGE_SIZE * PS3_AUDIO_FIFO_STAGE_COUNT)
+
+/* PS3 audio DMAC max block count in one dma shot = 128 (0x80) blocks*/
+#define PS3_AUDIO_DMAC_MAX_BLOCKS  (PS3_AUDIO_DMASIZE_BLOCKS_MASK + 1)
+
+#define PS3_AUDIO_NORMAL_DMA_START_CH (0)
+#define PS3_AUDIO_NORMAL_DMA_COUNT    (8)
+#define PS3_AUDIO_NULL_DMA_START_CH \
+	(PS3_AUDIO_NORMAL_DMA_START_CH + PS3_AUDIO_NORMAL_DMA_COUNT)
+#define PS3_AUDIO_NULL_DMA_COUNT      (2)
+
+#define SND_PS3_MAX_VOL (0x0F)
+#define SND_PS3_MIN_VOL (0x00)
+#define SND_PS3_MIN_ATT SND_PS3_MIN_VOL
+#define SND_PS3_MAX_ATT SND_PS3_MAX_VOL
+
+#define SND_PS3_PCM_PREALLOC_SIZE \
+	(PS3_AUDIO_DMAC_BLOCK_SIZE * PS3_AUDIO_DMAC_MAX_BLOCKS * 4)
+
+#define SND_PS3_DMA_REGION_SIZE \
+	(SND_PS3_PCM_PREALLOC_SIZE + PAGE_SIZE)
+
+#define PS3_AUDIO_IOID       (1UL)
+
+#endif /* _SND_PS3_H_ */