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/au88x0/au88x0_mpu401.c b/sound/pci/au88x0/au88x0_mpu401.c
new file mode 100644
index 0000000..c0c2346
--- /dev/null
+++ b/sound/pci/au88x0/au88x0_mpu401.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Routines for control of MPU-401 in UART mode
+ *
+ * Modified for the Aureal Vortex based Soundcards
+ * by Manuel Jander (mjande@embedded.cl).
+ *
+ * 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 <linux/init.h>
+#include <sound/core.h>
+#include <sound/mpu401.h>
+#include "au88x0.h"
+
+/* Check for mpu401 mmio support. */
+/* MPU401 legacy support is only provided as a emergency fallback *
+ * for older versions of ALSA. Its usage is strongly discouraged. */
+#ifndef MPU401_HW_AUREAL
+#define VORTEX_MPU401_LEGACY
+#endif
+
+/* Vortex MPU401 defines. */
+#define MIDI_CLOCK_DIV 0x61
+/* Standart MPU401 defines. */
+#define MPU401_RESET 0xff
+#define MPU401_ENTER_UART 0x3f
+#define MPU401_ACK 0xfe
+
+static int __devinit snd_vortex_midi(vortex_t * vortex)
+{
+ snd_rawmidi_t *rmidi;
+ int temp, mode;
+ mpu401_t *mpu;
+ int port;
+
+#ifdef VORTEX_MPU401_LEGACY
+ /* EnableHardCodedMPU401Port() */
+ /* Enable Legacy MIDI Interface port. */
+ port = (0x03 << 5); /* FIXME: static address. 0x330 */
+ temp =
+ (hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_PORT) |
+ CTRL_MIDI_EN | port;
+ hwwrite(vortex->mmio, VORTEX_CTRL, temp);
+#else
+ /* Disable Legacy MIDI Interface port. */
+ temp =
+ (hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_PORT) &
+ ~CTRL_MIDI_EN;
+ hwwrite(vortex->mmio, VORTEX_CTRL, temp);
+#endif
+ /* Mpu401UartInit() */
+ mode = 1;
+ temp = hwread(vortex->mmio, VORTEX_CTRL2) & 0xffff00cf;
+ temp |= (MIDI_CLOCK_DIV << 8) | ((mode >> 24) & 0xff) << 4;
+ hwwrite(vortex->mmio, VORTEX_CTRL2, temp);
+ hwwrite(vortex->mmio, VORTEX_MIDI_CMD, MPU401_RESET);
+ /* Set some kind of mode */
+ if (mode)
+ hwwrite(vortex->mmio, VORTEX_MIDI_CMD, MPU401_ENTER_UART);
+
+ /* Check if anything is OK. */
+ temp = hwread(vortex->mmio, VORTEX_MIDI_DATA);
+ if (temp != MPU401_ACK /*0xfe */ ) {
+ printk(KERN_ERR "midi port doesn't acknowledge!\n");
+ return -ENODEV;
+ }
+ /* Enable MPU401 interrupts. */
+ hwwrite(vortex->mmio, VORTEX_IRQ_CTRL,
+ hwread(vortex->mmio, VORTEX_IRQ_CTRL) | IRQ_MIDI);
+
+ /* Create MPU401 instance. */
+#ifdef VORTEX_MPU401_LEGACY
+ if ((temp =
+ snd_mpu401_uart_new(vortex->card, 0, MPU401_HW_MPU401, 0x330,
+ 0, 0, 0, &rmidi)) != 0) {
+ hwwrite(vortex->mmio, VORTEX_CTRL,
+ (hwread(vortex->mmio, VORTEX_CTRL) &
+ ~CTRL_MIDI_PORT) & ~CTRL_MIDI_EN);
+ return temp;
+ }
+#else
+ port = (unsigned long)(vortex->mmio + (VORTEX_MIDI_DATA >> 2));
+ if ((temp =
+ snd_mpu401_uart_new(vortex->card, 0, MPU401_HW_AUREAL, port,
+ 1, 0, 0, &rmidi)) != 0) {
+ hwwrite(vortex->mmio, VORTEX_CTRL,
+ (hwread(vortex->mmio, VORTEX_CTRL) &
+ ~CTRL_MIDI_PORT) & ~CTRL_MIDI_EN);
+ return temp;
+ }
+ mpu = rmidi->private_data;
+ mpu->cport = (unsigned long)(vortex->mmio + (VORTEX_MIDI_CMD >> 2));
+#endif
+ vortex->rmidi = rmidi;
+ return 0;
+}