v4l2-dbg: Add support for get/set ac97 registers

From: Mauro Carvalho Chehab <mchehab@redhat.com>

em28xx devices can have an ac97 anciliary chip. This patch allows
get/set ac97 registers

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 85 insertions, 5 deletions

diff --git a/v4l2-apps/util/v4l2-dbg-ac97.h b/v4l2-apps/util/v4l2-dbg-ac97.h
new file mode 100644
index 000000000..809abe469
--- /dev/null
+++ b/v4l2-apps/util/v4l2-dbg-ac97.h
@@ -0,0 +1,67 @@
+/*
+    Copyright (C) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>
+    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 version 2 of the License.
+
+    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 "v4l2-dbg.h"
+
+#define AC97_IDENT "ac97"
+
+/* Register name prefix */
+#define AC97_PREFIX "AC97_"
+#define EM202_PREFIX "EM202_"
+
+static struct board_regs ac97_regs[] = {
+	/* general ac97 registers */
+	{0x00, AC97_PREFIX "RESET", 2},
+	{0x02, AC97_PREFIX "MASTER_VOL", 2},
+	{0x04, AC97_PREFIX "LINE_LEVEL_VOL", 2},
+	{0x06, AC97_PREFIX "MASTER_MONO_VOL", 2},
+	{0x0a, AC97_PREFIX "PC_BEEP_VOL", 2},
+	{0x0c, AC97_PREFIX "PHONE_VOL", 2},
+	{0x0e, AC97_PREFIX "MIC_VOL", 2},
+	{0x10, AC97_PREFIX "LINEIN_VOL", 2},
+	{0x12, AC97_PREFIX "CD_VOL", 2},
+	{0x14, AC97_PREFIX "VIDEO_VOL", 2},
+	{0x16, AC97_PREFIX "AUX_VOL", 2},
+	{0x18, AC97_PREFIX "PCM_OUT_VOL", 2},
+	{0x1a, AC97_PREFIX "RECORD_SELECT", 2},
+	{0x1c, AC97_PREFIX "RECORD_GAIN", 2},
+	{0x20, AC97_PREFIX "GENERAL_PURPOSE", 2},
+	{0x22, AC97_PREFIX "3D_CTRL", 2},
+	{0x24, AC97_PREFIX "AUD_INT_AND_PAG", 2},
+	{0x26, AC97_PREFIX "POWER_DOWN_CTRL", 2},
+	{0x28, AC97_PREFIX "EXT_AUD_ID", 2},
+	{0x2a, AC97_PREFIX "EXT_AUD_CTRL", 2},
+	{0x2c, AC97_PREFIX "PCM_OUT_FRONT_SRATE", 2},
+	{0x2e, AC97_PREFIX "PCM_OUT_SURR_SRATE", 2},
+	{0x30, AC97_PREFIX "PCM_OUT_LFE_SRATE", 2},
+	{0x32, AC97_PREFIX "PCM_IN_SRATE", 2},
+	{0x36, AC97_PREFIX "LFE_MASTER_VOL", 2},
+	{0x38, AC97_PREFIX "SURR_MASTER_VOL", 2},
+	{0x3a, AC97_PREFIX "SPDIF_OUT_CTRL", 2},
+	{0x7c, AC97_PREFIX "VENDOR_ID1", 2},
+	{0x7e, AC97_PREFIX "VENDOR_ID2", 2},
+
+	/* em202 vendor specific registers */
+	{0x3e, EM202_PREFIX "EXT_MODEM_CTRL", 2},
+	{0x4c, EM202_PREFIX "GPIO_CONF", 2},
+	{0x4e, EM202_PREFIX "GPIO_POLARITY", 2},
+	{0x50, EM202_PREFIX "GPIO_STICKY", 2},
+	{0x52, EM202_PREFIX "GPIO_MASK", 2},
+	{0x54, EM202_PREFIX "GPIO_STATUS", 2},
+	{0x6a, EM202_PREFIX "SPDIF_OUT_SEL", 2},
+	{0x72, EM202_PREFIX "ANTIPOP", 2},
+	{0x74, EM202_PREFIX "EAPD_GPIO_ACCESS", 2},
+};
diff --git a/v4l2-apps/util/v4l2-dbg.cpp b/v4l2-apps/util/v4l2-dbg.cpp
index e05be1f03..412d3bea5 100644
--- a/v4l2-apps/util/v4l2-dbg.cpp
+++ b/v4l2-apps/util/v4l2-dbg.cpp
@@ -45,6 +45,7 @@
 #include "v4l2-dbg-bttv.h"
 #include "v4l2-dbg-saa7134.h"
 #include "v4l2-dbg-em28xx.h"
+#include "v4l2-dbg-ac97.h"
 
 #define ARRAY_SIZE(arr) ((int)(sizeof(arr) / sizeof((arr)[0])))
 
@@ -58,6 +59,15 @@ struct board_list {
 };
 
 static const struct board_list boards[] = {
+#define AC97_BOARD 0
+	{				/* From ac97-dbg.h */
+		AC97_IDENT,
+		sizeof(AC97_PREFIX) - 1,
+		ac97_regs,
+		ARRAY_SIZE(ac97_regs),
+		NULL,
+		0,
+	},
 	{				/* From bttv-dbg.h */
 		BTTV_IDENT,
 		sizeof(BTTV_PREFIX) - 1,
@@ -451,7 +461,6 @@ int main(int argc, char **argv)
 			}
 			if (!strcasecmp(optarg, "ac97")) {
 				match_type = V4L2_CHIP_MATCH_AC97;
-				match_chip = strtoul(optarg + 4, NULL, 0);
 				break;
 			}
 			match_type = V4L2_CHIP_MATCH_I2C_DRIVER;
@@ -537,10 +546,14 @@ int main(int argc, char **argv)
 		printf("%s", cap2s(vcap.capabilities).c_str());
 	}
 
-	for (int board = ARRAY_SIZE(boards) - 1; board >= 0; board--) {
-		if (!strcasecmp((char *)vcap.driver, boards[board].name)) {
-			curr_bd = &boards[board];
-			break;
+	if (match_type == V4L2_CHIP_MATCH_AC97) {
+		curr_bd = &boards[AC97_BOARD];
+	} else {
+		for (int board = ARRAY_SIZE(boards) - 1; board >= 0; board--) {
+			if (!strcasecmp((char *)vcap.driver, boards[board].name)) {
+				curr_bd = &boards[board];
+				break;
+			}
 		}
 	}