Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/sound/pci/emu10k1/timer.c b/sound/pci/emu10k1/timer.c
new file mode 100644
index 0000000..d2e3646
--- /dev/null
+++ b/sound/pci/emu10k1/timer.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) by Lee Revell <rlrevell@joe-job.com>
+ * Clemens Ladisch <clemens@ladisch.de>
+ * Routines for control of EMU10K1 chips
+ *
+ * BUGS:
+ * --
+ *
+ * TODO:
+ * --
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <sound/driver.h>
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/emu10k1.h>
+
+static int snd_emu10k1_timer_start(snd_timer_t *timer)
+{
+ emu10k1_t *emu;
+ unsigned long flags;
+ unsigned int delay;
+
+ emu = snd_timer_chip(timer);
+ delay = timer->sticks - 1;
+ if (delay < 5 ) /* minimum time is 5 ticks */
+ delay = 5;
+ spin_lock_irqsave(&emu->reg_lock, flags);
+ snd_emu10k1_intr_enable(emu, INTE_INTERVALTIMERENB);
+ outw(delay & TIMER_RATE_MASK, emu->port + TIMER);
+ spin_unlock_irqrestore(&emu->reg_lock, flags);
+ return 0;
+}
+
+static int snd_emu10k1_timer_stop(snd_timer_t *timer)
+{
+ emu10k1_t *emu;
+ unsigned long flags;
+
+ emu = snd_timer_chip(timer);
+ spin_lock_irqsave(&emu->reg_lock, flags);
+ snd_emu10k1_intr_disable(emu, INTE_INTERVALTIMERENB);
+ spin_unlock_irqrestore(&emu->reg_lock, flags);
+ return 0;
+}
+
+static int snd_emu10k1_timer_precise_resolution(snd_timer_t *timer,
+ unsigned long *num, unsigned long *den)
+{
+ *num = 1;
+ *den = 48000;
+ return 0;
+}
+
+static struct _snd_timer_hardware snd_emu10k1_timer_hw = {
+ .flags = SNDRV_TIMER_HW_AUTO,
+ .resolution = 20833, /* 1 sample @ 48KHZ = 20.833...us */
+ .ticks = 1024,
+ .start = snd_emu10k1_timer_start,
+ .stop = snd_emu10k1_timer_stop,
+ .precise_resolution = snd_emu10k1_timer_precise_resolution,
+};
+
+int __devinit snd_emu10k1_timer(emu10k1_t *emu, 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 = emu->card->number;
+ tid.device = device;
+ tid.subdevice = 0;
+ if ((err = snd_timer_new(emu->card, "EMU10K1", &tid, &timer)) >= 0) {
+ strcpy(timer->name, "EMU10K1 timer");
+ timer->private_data = emu;
+ timer->hw = snd_emu10k1_timer_hw;
+ }
+ emu->timer = timer;
+ return err;
+}