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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-08-16 18:42:58 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-08-16 18:42:58 +0100
commite4862f2f6f5653dfb67f3ba2b6f0bc74516ed51a (patch)
tree1db5a0540a4eecfad9b7daee476b985e82ddc810 /drivers/firewire/core-iso.c
parentec62dbd7eb8e3dddb221da89ecbcea0fc3dee8c1 (diff)
parentb2c1e07b81a126e5846dfc3d36f559d861df59f4 (diff)
Merge branch 'for-2.6.36' into for-2.6.37
Fairly simple conflicts, the most serious ones are the i.MX ones which I suspect now need another rename. Conflicts: arch/arm/mach-mx2/clock_imx27.c arch/arm/mach-mx2/devices.c arch/arm/mach-omap2/board-rx51-peripherals.c arch/arm/mach-omap2/board-zoom2.c sound/soc/fsl/mpc5200_dma.c sound/soc/fsl/mpc5200_dma.h sound/soc/fsl/mpc8610_hpcd.c sound/soc/pxa/spitz.c
Diffstat (limited to 'drivers/firewire/core-iso.c')
-rw-r--r--drivers/firewire/core-iso.c34
1 files changed, 26 insertions, 8 deletions
diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
index 8f5aebfb29df..c003fa4e2db1 100644
--- a/drivers/firewire/core-iso.c
+++ b/drivers/firewire/core-iso.c
@@ -118,6 +118,23 @@ void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer,
}
EXPORT_SYMBOL(fw_iso_buffer_destroy);
+/* Convert DMA address to offset into virtually contiguous buffer. */
+size_t fw_iso_buffer_lookup(struct fw_iso_buffer *buffer, dma_addr_t completed)
+{
+ int i;
+ dma_addr_t address;
+ ssize_t offset;
+
+ for (i = 0; i < buffer->page_count; i++) {
+ address = page_private(buffer->pages[i]);
+ offset = (ssize_t)completed - (ssize_t)address;
+ if (offset > 0 && offset <= PAGE_SIZE)
+ return (i << PAGE_SHIFT) + offset;
+ }
+
+ return 0;
+}
+
struct fw_iso_context *fw_iso_context_create(struct fw_card *card,
int type, int channel, int speed, size_t header_size,
fw_iso_callback_t callback, void *callback_data)
@@ -134,7 +151,7 @@ struct fw_iso_context *fw_iso_context_create(struct fw_card *card,
ctx->channel = channel;
ctx->speed = speed;
ctx->header_size = header_size;
- ctx->callback = callback;
+ ctx->callback.sc = callback;
ctx->callback_data = callback_data;
return ctx;
@@ -143,9 +160,7 @@ EXPORT_SYMBOL(fw_iso_context_create);
void fw_iso_context_destroy(struct fw_iso_context *ctx)
{
- struct fw_card *card = ctx->card;
-
- card->driver->free_iso_context(ctx);
+ ctx->card->driver->free_iso_context(ctx);
}
EXPORT_SYMBOL(fw_iso_context_destroy);
@@ -156,14 +171,17 @@ int fw_iso_context_start(struct fw_iso_context *ctx,
}
EXPORT_SYMBOL(fw_iso_context_start);
+int fw_iso_context_set_channels(struct fw_iso_context *ctx, u64 *channels)
+{
+ return ctx->card->driver->set_iso_channels(ctx, channels);
+}
+
int fw_iso_context_queue(struct fw_iso_context *ctx,
struct fw_iso_packet *packet,
struct fw_iso_buffer *buffer,
unsigned long payload)
{
- struct fw_card *card = ctx->card;
-
- return card->driver->queue_iso(ctx, packet, buffer, payload);
+ return ctx->card->driver->queue_iso(ctx, packet, buffer, payload);
}
EXPORT_SYMBOL(fw_iso_context_queue);
@@ -279,7 +297,7 @@ static void deallocate_channel(struct fw_card *card, int irm_id,
}
/**
- * fw_iso_resource_manage - Allocate or deallocate a channel and/or bandwidth
+ * fw_iso_resource_manage() - Allocate or deallocate a channel and/or bandwidth
*
* In parameters: card, generation, channels_mask, bandwidth, allocate
* Out parameters: channel, bandwidth