diff options
author | Tim Blechmann <tim@klingt.org> | 2009-09-21 15:00:22 +0200 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2009-09-21 15:13:53 +0200 |
commit | 95eff499c96ac728307fd34cbf1a28ea20a5b615 (patch) | |
tree | fa1ede61041eaf3e128b03985e24bc20150c65d8 /sound/pci/lx6464es | |
parent | d3a7dcfeeb6856215412065bd0f774de83f43414 (diff) | |
download | linux-95eff499c96ac728307fd34cbf1a28ea20a5b615.tar.gz linux-95eff499c96ac728307fd34cbf1a28ea20a5b615.tar.xz |
ALSA: lx6464es - cleanup of rmh message bus function
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>
Diffstat (limited to 'sound/pci/lx6464es')
-rw-r--r-- | sound/pci/lx6464es/lx6464es.h | 1 | ||||
-rw-r--r-- | sound/pci/lx6464es/lx_core.c | 98 |
2 files changed, 1 insertions, 98 deletions
diff --git a/sound/pci/lx6464es/lx6464es.h b/sound/pci/lx6464es/lx6464es.h index 012c010c8c89..16442dad58d1 100644 --- a/sound/pci/lx6464es/lx6464es.h +++ b/sound/pci/lx6464es/lx6464es.h @@ -86,7 +86,6 @@ struct lx6464es { /* messaging */ spinlock_t msg_lock; /* message spinlock */ - atomic_t send_message_locked; struct lx_rmh rmh; /* configuration */ diff --git a/sound/pci/lx6464es/lx_core.c b/sound/pci/lx6464es/lx_core.c index 5812780d6e89..3086b751da4a 100644 --- a/sound/pci/lx6464es/lx_core.c +++ b/sound/pci/lx6464es/lx_core.c @@ -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; |