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firewire: Fix start on cycle 0 for IT, implement start on cycle for IR. 

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Kristian Høgsberg 2007-03-28 14:26:10 -04:00 committed by Stefan Richter
parent ef370ee74b
commit 8a2f7d932f
1 changed files with 13 additions and 9 deletions
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22
drivers/firewire/fw-ohci.c
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@ -1362,28 +1362,32 @@ static int ohci_start_iso(struct fw_iso_context *base,
{
struct iso_context *ctx = container_of(base, struct iso_context, base);
struct fw_ohci *ohci = ctx->context.ohci;
u32 cycle_match = 0;
u32 control, match;
int index;
if (ctx->base.type == FW_ISO_CONTEXT_TRANSMIT) {
index = ctx - ohci->it_context_list;
if (cycle > 0)
cycle_match = IT_CONTEXT_CYCLE_MATCH_ENABLE |
match = 0;
if (cycle >= 0)
match = IT_CONTEXT_CYCLE_MATCH_ENABLE |
(cycle & 0x7fff) << 16;
reg_write(ohci, OHCI1394_IsoXmitIntEventClear, 1 << index);
reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, 1 << index);
context_run(&ctx->context, cycle_match);
context_run(&ctx->context, match);
} else {
index = ctx - ohci->ir_context_list;
control = IR_CONTEXT_DUAL_BUFFER_MODE | IR_CONTEXT_ISOCH_HEADER;
match = (tags << 28) | (sync << 8) | ctx->base.channel;
if (cycle >= 0) {
match |= (cycle & 0x07fff) << 12;
control |= IR_CONTEXT_CYCLE_MATCH_ENABLE;
}
reg_write(ohci, OHCI1394_IsoRecvIntEventClear, 1 << index);
reg_write(ohci, OHCI1394_IsoRecvIntMaskSet, 1 << index);
reg_write(ohci, context_match(ctx->context.regs),
(tags << 28) | (sync << 8) | ctx->base.channel);
context_run(&ctx->context,
IR_CONTEXT_DUAL_BUFFER_MODE |
IR_CONTEXT_ISOCH_HEADER);
reg_write(ohci, context_match(ctx->context.regs), match);
context_run(&ctx->context, control);
}
return 0;