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ALSA: lx6464es - cleanup of rmh message bus function

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the rmh bus is not used asynchronously, so it is safe to remove the
specific code pieces.

Signed-off-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Tim Blechmann 2009-09-21 15:00:22 +02:00 committed by Takashi Iwai
parent d3a7dcfeeb
commit 95eff499c9
2 changed files with 1 additions and 98 deletions
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1
sound/pci/lx6464es/lx6464es.h
View File

@ -86,7 +86,6 @@ struct lx6464es {
/* messaging */
spinlock_t msg_lock; /* message spinlock */
atomic_t send_message_locked;
struct lx_rmh rmh;
/* configuration */

98
sound/pci/lx6464es/lx_core.c
View File

@ -314,98 +314,6 @@ static inline void lx_message_dump(struct lx_rmh *rmh)
#define XILINX_POLL_NO_SLEEP 100
#define XILINX_POLL_ITERATIONS 150
#if 0 /* not used now */
static int lx_message_send(struct lx6464es *chip, struct lx_rmh *rmh)
{
u32 reg = ED_DSP_TIMED_OUT;
int dwloop;
int answer_received;
if (lx_dsp_reg_read(chip, eReg_CSM) & (Reg_CSM_MC | Reg_CSM_MR)) {
snd_printk(KERN_ERR LXP "PIOSendMessage eReg_CSM %x\n", reg);
return -EBUSY;
}
/* write command */
lx_dsp_reg_writebuf(chip, eReg_CRM1, rmh->cmd, rmh->cmd_len);
snd_BUG_ON(atomic_read(&chip->send_message_locked) != 0);
atomic_set(&chip->send_message_locked, 1);
/* MicoBlaze gogogo */
lx_dsp_reg_write(chip, eReg_CSM, Reg_CSM_MC);
/* wait for interrupt to answer */
for (dwloop = 0; dwloop != XILINX_TIMEOUT_MS; ++dwloop) {
answer_received = atomic_read(&chip->send_message_locked);
if (answer_received == 0)
break;
msleep(1);
}
if (answer_received == 0) {
/* in Debug mode verify Reg_CSM_MR */
snd_BUG_ON(!(lx_dsp_reg_read(chip, eReg_CSM) & Reg_CSM_MR));
/* command finished, read status */
if (rmh->dsp_stat == 0)
reg = lx_dsp_reg_read(chip, eReg_CRM1);
else
reg = 0;
} else {
int i;
snd_printk(KERN_WARNING LXP "TIMEOUT lx_message_send! "
"Interrupts disabled?\n");
/* attente bit Reg_CSM_MR */
for (i = 0; i != XILINX_POLL_ITERATIONS; i++) {
if ((lx_dsp_reg_read(chip, eReg_CSM) & Reg_CSM_MR)) {
if (rmh->dsp_stat == 0)
reg = lx_dsp_reg_read(chip, eReg_CRM1);
else
reg = 0;
goto polling_successful;
}
if (i > XILINX_POLL_NO_SLEEP)
msleep(1);
}
snd_printk(KERN_WARNING LXP "TIMEOUT lx_message_send! "
"polling failed\n");
polling_successful:
atomic_set(&chip->send_message_locked, 0);
}
if ((reg & ERROR_VALUE) == 0) {
/* read response */
if (rmh->stat_len) {
snd_BUG_ON(rmh->stat_len >= (REG_CRM_NUMBER-1));
lx_dsp_reg_readbuf(chip, eReg_CRM2, rmh->stat,
rmh->stat_len);
}
} else
snd_printk(KERN_WARNING LXP "lx_message_send: error_value %x\n",
reg);
/* clear Reg_CSM_MR */
lx_dsp_reg_write(chip, eReg_CSM, 0);
switch (reg) {
case ED_DSP_TIMED_OUT:
snd_printk(KERN_WARNING LXP "lx_message_send: dsp timeout\n");
return -ETIMEDOUT;
case ED_DSP_CRASHED:
snd_printk(KERN_WARNING LXP "lx_message_send: dsp crashed\n");
return -EAGAIN;
}
lx_message_dump(rmh);
return 0;
}
#endif /* not used now */
static int lx_message_send_atomic(struct lx6464es *chip, struct lx_rmh *rmh)
{
@ -423,7 +331,7 @@ static int lx_message_send_atomic(struct lx6464es *chip, struct lx_rmh *rmh)
/* MicoBlaze gogogo */
lx_dsp_reg_write(chip, eReg_CSM, Reg_CSM_MC);
/* wait for interrupt to answer */
/* wait for device to answer */
for (dwloop = 0; dwloop != XILINX_TIMEOUT_MS * 1000; ++dwloop) {
if (lx_dsp_reg_read(chip, eReg_CSM) & Reg_CSM_MR) {
if (rmh->dsp_stat == 0)
@ -1175,10 +1083,6 @@ static int lx_interrupt_ack(struct lx6464es *chip, u32 *r_irqsrc,
*r_async_escmd = 1;
}
if (irqsrc & MASK_SYS_STATUS_CMD_DONE)
/* xilinx command notification */
atomic_set(&chip->send_message_locked, 0);
if (irq_async) {
/* snd_printd("interrupt: async event pending\n"); */
*r_async_pending = 1;