Piteball/android_kernel_samsung_msm8976
1
1
Fork 0
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git synced 2024-09-22 04:15:02 +00:00
Code Issues Projects Releases Wiki Activity

ALSA: asihpi - Remove int flag polling code preparing for stream interrupts.

Browse source 
Interrupt flag used for message handshake will be required for
stream interrupts, so conditionally compiled code without
HPI6205_NO_HSR_POLL defined can never be used;  removing it.

Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Eliot Blennerhassett 2011-02-10 17:26:07 +13:00 committed by Takashi Iwai
parent 4704998e84
commit 4b60221c04
2 changed files with 0 additions and 104 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

101
sound/pci/asihpi/hpi6205.c
View file

@ -527,10 +527,6 @@ static u16 create_adapter_obj(struct hpi_adapter_obj *pao,
struct hpi_hw_obj *phw = pao->priv;
struct bus_master_interface *interface;
u32 phys_addr;
#ifndef HPI6205_NO_HSR_POLL
u32 time_out = HPI6205_TIMEOUT;
u32 temp1;
#endif
int i;
u16 err;
@ -584,27 +580,6 @@ static u16 create_adapter_obj(struct hpi_adapter_obj *pao,
interface = phw->p_interface_buffer;
#ifndef HPI6205_NO_HSR_POLL
/* wait for first interrupt indicating the DSP init is done */
time_out = HPI6205_TIMEOUT * 10;
temp1 = 0;
while (((temp1 & C6205_HSR_INTSRC) == 0) && --time_out)
temp1 = ioread32(phw->prHSR);
if (temp1 & C6205_HSR_INTSRC)
HPI_DEBUG_LOG(INFO,
"Interrupt confirming DSP code running OK\n");
else {
HPI_DEBUG_LOG(ERROR,
"Timed out waiting for interrupt "
"confirming DSP code running\n");
return HPI6205_ERROR_6205_NO_IRQ;
}
/* reset the interrupt */
iowrite32(C6205_HSR_INTSRC, phw->prHSR);
#endif
/* make sure the DSP has started ok */
if (!wait_dsp_ack(phw, H620_HIF_RESET, HPI6205_TIMEOUT * 10)) {
HPI_DEBUG_LOG(ERROR, "timed out waiting reset state \n");
@ -1982,9 +1957,6 @@ static short hpi6205_transfer_data(struct hpi_adapter_obj *pao, u8 *p_data,
struct hpi_hw_obj *phw = pao->priv;
u32 data_transferred = 0;
u16 err = 0;
#ifndef HPI6205_NO_HSR_POLL
u32 time_out;
#endif
u32 temp2;
struct bus_master_interface *interface = phw->p_interface_buffer;
@ -2009,14 +1981,10 @@ static short hpi6205_transfer_data(struct hpi_adapter_obj *pao, u8 *p_data,
interface->transfer_size_in_bytes = this_copy;
#ifdef HPI6205_NO_HSR_POLL
/* DSP must change this back to nOperation */
interface->dsp_ack = H620_HIF_IDLE;
#endif
send_dsp_command(phw, operation);
#ifdef HPI6205_NO_HSR_POLL
temp2 = wait_dsp_ack(phw, operation, HPI6205_TIMEOUT);
HPI_DEBUG_LOG(DEBUG, "spun %d times for data xfer of %d\n",
HPI6205_TIMEOUT - temp2, this_copy);
@ -2029,40 +1997,6 @@ static short hpi6205_transfer_data(struct hpi_adapter_obj *pao, u8 *p_data,
break;
}
#else
/* spin waiting on the result */
time_out = HPI6205_TIMEOUT;
temp2 = 0;
while ((temp2 == 0) && time_out--) {
/* give 16k bus mastering transfer time to happen */
/*(16k / 132Mbytes/s = 122usec) */
hpios_delay_micro_seconds(20);
temp2 = ioread32(phw->prHSR);
temp2 &= C6205_HSR_INTSRC;
}
HPI_DEBUG_LOG(DEBUG, "spun %d times for data xfer of %d\n",
HPI6205_TIMEOUT - time_out, this_copy);
if (temp2 == C6205_HSR_INTSRC) {
HPI_DEBUG_LOG(VERBOSE,
"Interrupt from HIF <data> OK\n");
/*
if(interface->dwDspAck != nOperation) {
HPI_DEBUG_LOG(DEBUG("interface->dwDspAck=%d,
expected %d \n",
interface->dwDspAck,nOperation);
}
*/
}
/* need to handle this differently... */
else {
HPI_DEBUG_LOG(ERROR,
"Interrupt from HIF <data> BAD\n");
err = HPI_ERROR_DSP_HARDWARE;
}
/* reset the interrupt from the DSP */
iowrite32(C6205_HSR_INTSRC, phw->prHSR);
#endif
if (operation == H620_HIF_GET_DATA)
memcpy(&p_data[data_transferred],
(void *)&interface->u.b_data[0], this_copy);
@ -2119,9 +2053,6 @@ static unsigned int message_count;
static u16 message_response_sequence(struct hpi_adapter_obj *pao,
struct hpi_message *phm, struct hpi_response *phr)
{
#ifndef HPI6205_NO_HSR_POLL
u32 temp2;
#endif
u32 time_out, time_out2;
struct hpi_hw_obj *phw = pao->priv;
struct bus_master_interface *interface = phw->p_interface_buffer;
@ -2164,38 +2095,6 @@ static u16 message_response_sequence(struct hpi_adapter_obj *pao,
/* spin waiting on HIF interrupt flag (end of msg process) */
time_out = HPI6205_TIMEOUT;
#ifndef HPI6205_NO_HSR_POLL
temp2 = 0;
while ((temp2 == 0) && --time_out) {
temp2 = ioread32(phw->prHSR);
temp2 &= C6205_HSR_INTSRC;
hpios_delay_micro_seconds(1);
}
if (temp2 == C6205_HSR_INTSRC) {
rmb(); /* ensure we see latest value for dsp_ack */
if ((interface->dsp_ack != H620_HIF_GET_RESP)) {
HPI_DEBUG_LOG(DEBUG,
"(%u)interface->dsp_ack(0x%x) != "
"H620_HIF_GET_RESP, t=%u\n", message_count,
interface->dsp_ack,
HPI6205_TIMEOUT - time_out);
} else {
HPI_DEBUG_LOG(VERBOSE,
"(%u)int with GET_RESP after %u\n",
message_count, HPI6205_TIMEOUT - time_out);
}
} else {
/* can we do anything else in response to the error ? */
HPI_DEBUG_LOG(ERROR,
"Interrupt from HIF module BAD (function %x)\n",
phm->function);
}
/* reset the interrupt from the DSP */
iowrite32(C6205_HSR_INTSRC, phw->prHSR);
#endif
/* read the result */
if (time_out) {
if (interface->u.response_buffer.size <= phr->size)

3
sound/pci/asihpi/hpi6205.h
View file

@ -25,9 +25,6 @@ Copyright AudioScience, Inc., 2003
#ifndef _HPI6205_H_
#define _HPI6205_H_
/* transitional conditional compile shared between host and DSP */
/* #define HPI6205_NO_HSR_POLL */
#include "hpi_internal.h"
/***********************************************************