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 <clemens@ladisch.de>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Tested-by: Jay Fenlason <fenlason@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/include/linux/firewire.h b/include/linux/firewire.h
index 9a3f5f9..fc023d6 100644
--- 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 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 */