ALSA: Add the driver for Digigram Lola PCI-e boards

Added a new driver for supporting Digigram Lola PCI-e boards.

Lola has a similar h/w design like HD-audio but with extended verbs.
Thus the driver is written similarly like HD-audio driver in the bus
part.  The codec part is rather written in a fixed way specific to the
Lola board because of the verb incompatibility.

The driver provides basic PCM, supporting multi-streams and mixing.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 86 insertions, 0 deletions

diff --git a/sound/pci/lola/lola_proc.c b/sound/pci/lola/lola_proc.c
new file mode 100644
index 000000000000..247fa2477171
--- /dev/null
+++ b/sound/pci/lola/lola_proc.c
@@ -0,0 +1,86 @@
+/*
+ *  Support for Digigram Lola PCI-e boards
+ *
+ *  Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
+ *
+ *  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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <sound/core.h>
+#include <sound/info.h>
+#include <sound/pcm.h>
+#include "lola.h"
+
+/* direct codec access for debugging */
+static void lola_proc_codec_write(struct snd_info_entry *entry,
+				  struct snd_info_buffer *buffer)
+{
+	struct lola *chip = entry->private_data;
+	char line[64];
+	unsigned int id, verb, data, extdata;
+	while (!snd_info_get_line(buffer, line, sizeof(line))) {
+		if (sscanf(line, "%i %i %i %i", &id, &verb, &data, &extdata) != 4)
+			continue;
+		lola_codec_read(chip, id, verb, data, extdata,
+				&chip->debug_res,
+				&chip->debug_res_ex);
+	}
+}
+
+static void lola_proc_codec_read(struct snd_info_entry *entry,
+				 struct snd_info_buffer *buffer)
+{
+	struct lola *chip = entry->private_data;
+	snd_iprintf(buffer, "0x%x 0x%x\n", chip->debug_res, chip->debug_res_ex);
+}
+
+/*
+ * dump some registers
+ */
+static void lola_proc_regs_read(struct snd_info_entry *entry,
+				struct snd_info_buffer *buffer)
+{
+	struct lola *chip = entry->private_data;
+	int i;
+
+	for (i = 0; i < 0x40; i += 4) {
+		snd_iprintf(buffer, "BAR0 %02x: %08x\n", i,
+			    readl(chip->bar[BAR0].remap_addr + i));
+	}
+	for (i = 0; i < 0x30; i += 4) {
+		snd_iprintf(buffer, "BAR1 %02x: %08x\n", i,
+			    readl(chip->bar[BAR1].remap_addr + i));
+	}
+	for (i = 0x80; i < 0xa0; i += 4) {
+		snd_iprintf(buffer, "BAR1 %02x: %08x\n", i,
+			    readl(chip->bar[BAR1].remap_addr + i));
+	}
+}
+
+void __devinit lola_proc_debug_new(struct lola *chip)
+{
+	struct snd_info_entry *entry;
+
+	if (!snd_card_proc_new(chip->card, "codec", &entry)) {
+		snd_info_set_text_ops(entry, chip, lola_proc_codec_read);
+		entry->mode |= S_IWUSR;
+		entry->c.text.write = lola_proc_codec_write;
+	}
+	if (!snd_card_proc_new(chip->card, "regs", &entry))
+		snd_info_set_text_ops(entry, chip, lola_proc_regs_read);
+}