ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver

Add a driver for two playback-only FireWire devices based on the OXFW970 chip. v2: better AMDTP API abstraction; fix fw_unit leak; small fixes v3: cache the iPCR value v4: FireWave constraints; fix fw_device reference counting; fix PCR caching; small changes and fixes v5: volume/mute support; fix crashing due to pcm stop races v6: fix build; one-channel volume for LaCie v7: use signed values to make volume (range checks) work; fix function block IDs for volume/mute; always use channel 0 for LaCie volume Signed-off-by: Clemens Ladisch <[email protected]> Acked-by: Stefan Richter <[email protected]> Tested-by: Jay Fenlason <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
yalong0424 · Mar 15, 2011 · 31ef913 · 31ef913
1 parent a5abba9
commit 31ef913
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Showing 20 changed files with 2,651 additions and 4 deletions.
diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
@@ -362,3 +362,4 @@ void fw_iso_resource_manage(struct fw_card *card, int generation,
 		*channel = ret;
 	}
 }
+EXPORT_SYMBOL(fw_iso_resource_manage);
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
@@ -147,9 +147,6 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event);
 /* -iso */
 
 int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma);
-void fw_iso_resource_manage(struct fw_card *card, int generation,
-			    u64 channels_mask, int *channel, int *bandwidth,
-			    bool allocate, __be32 buffer[2]);
 
 
 /* -topology */

diff --git a/include/linux/firewire.h b/include/linux/firewire.h
@@ -42,6 +42,10 @@
 #define CSR_BROADCAST_CHANNEL		0x234
 #define CSR_CONFIG_ROM			0x400
 #define CSR_CONFIG_ROM_END		0x800
+#define CSR_OMPR			0x900
+#define CSR_OPCR(i)			(0x904 + (i) * 4)
+#define CSR_IMPR			0x980
+#define CSR_IPCR(i)			(0x984 + (i) * 4)
 #define CSR_FCP_COMMAND			0xB00
 #define CSR_FCP_RESPONSE		0xD00
 #define CSR_FCP_END			0xF00
@@ -441,5 +445,8 @@ int fw_iso_context_start(struct fw_iso_context *ctx,
 			 int cycle, int sync, int tags);
 int fw_iso_context_stop(struct fw_iso_context *ctx);
 void fw_iso_context_destroy(struct fw_iso_context *ctx);
+void fw_iso_resource_manage(struct fw_card *card, int generation,
+			    u64 channels_mask, int *channel, int *bandwidth,
+			    bool allocate, __be32 buffer[2]);
 
 #endif /* _LINUX_FIREWIRE_H */
diff --git a/sound/Kconfig b/sound/Kconfig
@@ -97,6 +97,8 @@ source "sound/sh/Kconfig"
 # here assuming USB is defined before ALSA
 source "sound/usb/Kconfig"
 
+source "sound/firewire/Kconfig"
+
 # the following will depend on the order of config.
 # here assuming PCMCIA is defined before ALSA
 source "sound/pcmcia/Kconfig"

diff --git a/sound/Makefile b/sound/Makefile
@@ -6,7 +6,7 @@ obj-$(CONFIG_SOUND_PRIME) += sound_firmware.o
 obj-$(CONFIG_SOUND_PRIME) += oss/
 obj-$(CONFIG_DMASOUND) += oss/
 obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \
-	sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/
+	firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/
 obj-$(CONFIG_SND_AOA) += aoa/
 
 # This one must be compilable even if sound is configured out

diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
@@ -0,0 +1,25 @@
+menuconfig SND_FIREWIRE
+	bool "FireWire sound devices"
+	depends on FIREWIRE
+	default y
+	help
+	  Support for IEEE-1394/FireWire/iLink sound devices.
+
+if SND_FIREWIRE && FIREWIRE
+
+config SND_FIREWIRE_LIB
+	tristate
+	depends on SND_PCM
+
+config SND_FIREWIRE_SPEAKERS
+	tristate "FireWire speakers"
+	select SND_PCM
+	select SND_FIREWIRE_LIB
+	help
+	  Say Y here to include support for the Griffin FireWave Surround
+	  and the LaCie FireWire Speakers.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-firewire-speakers.
+
+endif # SND_FIREWIRE
diff --git a/sound/firewire/Makefile b/sound/firewire/Makefile
@@ -0,0 +1,6 @@
+snd-firewire-lib-objs := lib.o iso-resources.o packets-buffer.o \
+			 fcp.o cmp.o amdtp.o
+snd-firewire-speakers-objs := speakers.o
+
+obj-$(CONFIG_SND_FIREWIRE_LIB) += snd-firewire-lib.o
+obj-$(CONFIG_SND_FIREWIRE_SPEAKERS) += snd-firewire-speakers.o
-Original file line number
+Diff line change
@@ Expand Up @@
     		*channel = ret;
     	}
     }
+    EXPORT_SYMBOL(fw_iso_resource_manage);