Update of /cvsroot/alsa/alsa-kernel/pci/ymfpci
In directory sc8-pr-cvs1:/tmp/cvs-serv27996/pci/ymfpci
Modified Files:
ymfpci.c ymfpci_main.c
Log Message:
Clemens Ladisch <[EMAIL PROTECTED]>:
- added the support for the timer on ymfpci chips.
Index: ymfpci.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/pci/ymfpci/ymfpci.c,v
retrieving revision 1.26
retrieving revision 1.27
diff -u -r1.26 -r1.27
--- ymfpci.c 12 Aug 2003 14:10:16 -0000 1.26
+++ ymfpci.c 7 Oct 2003 10:03:24 -0000 1.27
@@ -206,6 +206,10 @@
snd_card_free(card);
return err;
}
+ if ((err = snd_ymfpci_timer(chip, 0)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
if (chip->mpu_res) {
if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_YMFPCI,
mpu_port[dev], 1,
Index: ymfpci_main.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/pci/ymfpci/ymfpci_main.c,v
retrieving revision 1.41
retrieving revision 1.42
diff -u -r1.41 -r1.42
--- ymfpci_main.c 14 Aug 2003 11:05:38 -0000 1.41
+++ ymfpci_main.c 7 Oct 2003 10:03:24 -0000 1.42
@@ -779,7 +779,8 @@
status = snd_ymfpci_readw(chip, YDSXGR_INTFLAG);
if (status & 1) {
- /* timer handler */
+ if (chip->timer)
+ snd_timer_interrupt(chip->timer, chip->timer->sticks);
}
snd_ymfpci_writew(chip, YDSXGR_INTFLAG, status);
@@ -1699,6 +1700,77 @@
}
return 0;
+}
+
+
+/*
+ * timer
+ */
+
+static int snd_ymfpci_timer_start(snd_timer_t *timer)
+{
+ ymfpci_t *chip;
+ unsigned long flags;
+ unsigned int count;
+
+ chip = snd_timer_chip(timer);
+ count = timer->sticks - 1;
+ if (count == 0) /* minimum time is 20.8 us */
+ count = 1;
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ snd_ymfpci_writew(chip, YDSXGR_TIMERCOUNT, count);
+ snd_ymfpci_writeb(chip, YDSXGR_TIMERCTRL, 0x03);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return 0;
+}
+
+static int snd_ymfpci_timer_stop(snd_timer_t *timer)
+{
+ ymfpci_t *chip;
+ unsigned long flags;
+
+ chip = snd_timer_chip(timer);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ snd_ymfpci_writeb(chip, YDSXGR_TIMERCTRL, 0x00);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return 0;
+}
+
+static int snd_ymfpci_timer_precise_resolution(snd_timer_t *timer,
+ unsigned long *num, unsigned long *den)
+{
+ *num = 1;
+ *den = 96000;
+ return 0;
+}
+
+static struct _snd_timer_hardware snd_ymfpci_timer_hw = {
+ .flags = SNDRV_TIMER_HW_AUTO,
+ .resolution = 10417, /* 1/2fs = 10.41666...us */
+ .ticks = 65536,
+ .start = snd_ymfpci_timer_start,
+ .stop = snd_ymfpci_timer_stop,
+ .precise_resolution = snd_ymfpci_timer_precise_resolution,
+};
+
+int __devinit snd_ymfpci_timer(ymfpci_t *chip, int device)
+{
+ snd_timer_t *timer = NULL;
+ snd_timer_id_t tid;
+ int err;
+
+ tid.dev_class = SNDRV_TIMER_CLASS_CARD;
+ tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
+ tid.card = chip->card->number;
+ tid.device = device;
+ tid.subdevice = 0;
+ if ((err = snd_timer_new(chip->card, "YMFPCI", &tid, &timer)) >= 0) {
+ strcpy(timer->name, "YMFPCI timer");
+ timer->private_data = chip;
+ timer->hw = snd_ymfpci_timer_hw;
+ }
+ chip->timer = timer;
+ return err;
}
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