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

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>

2 files changed, 0 insertions, 104 deletions

diff --git a/sound/pci/asihpi/hpi6205.c b/sound/pci/asihpi/hpi6205.c
index 5fe535b1b096..cbf79a99156c 100644
--- a/sound/pci/asihpi/hpi6205.c
+++ b/sound/pci/asihpi/hpi6205.c
@@ -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)
diff --git a/sound/pci/asihpi/hpi6205.h b/sound/pci/asihpi/hpi6205.h
index e00edb0cedda..df2f02c0c7b4 100644
--- a/sound/pci/asihpi/hpi6205.h
+++ b/sound/pci/asihpi/hpi6205.h
@@ -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"
 
 /***********************************************************