V4L/DVB (6869): cs5345: new i2c driver
authorHans Verkuil <hverkuil@xs4all.nl>
Tue, 18 Dec 2007 22:40:44 +0000 (19:40 -0300)
committerMauro Carvalho Chehab <mchehab@infradead.org>
Fri, 25 Jan 2008 21:04:08 +0000 (19:04 -0200)
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
drivers/media/video/Kconfig
drivers/media/video/Makefile
drivers/media/video/cs5345.c [new file with mode: 0644]
include/media/cs5345.h [new file with mode: 0644]
include/media/v4l2-chip-ident.h

index 6c7835629bcd9f7996fba61198fd174e69d0cb51..7431f6da5cae2da4a191a5c69ae5c212b4df5491 100644 (file)
@@ -109,6 +109,16 @@ config VIDEO_MSP3400
          To compile this driver as a module, choose M here: the
          module will be called msp3400.
 
+config VIDEO_CS5345
+       tristate "Cirrus Logic CS5345 audio ADC"
+       depends on VIDEO_V4L2 && I2C && EXPERIMENTAL
+       ---help---
+         Support for the Cirrus Logic CS5345 24-bit, 192 kHz
+         stereo A/D converter.
+
+         To compile this driver as a module, choose M here: the
+         module will be called cs5345.
+
 config VIDEO_CS53L32A
        tristate "Cirrus Logic CS53L32A audio ADC"
        depends on VIDEO_V4L2 && I2C
index a837e1ea518f60a1e6c03983e05be84b0687ee06..74a2a1c45fe308c753bc4a8d419e7bb36438b9e9 100644 (file)
@@ -66,6 +66,7 @@ obj-$(CONFIG_VIDEO_USBVISION) += usbvision/
 obj-$(CONFIG_VIDEO_TVP5150) += tvp5150.o
 obj-$(CONFIG_VIDEO_PVRUSB2) += pvrusb2/
 obj-$(CONFIG_VIDEO_MSP3400) += msp3400.o
+obj-$(CONFIG_VIDEO_CS5345) += cs5345.o
 obj-$(CONFIG_VIDEO_CS53L32A) += cs53l32a.o
 obj-$(CONFIG_VIDEO_M52790) += m52790.o
 obj-$(CONFIG_VIDEO_TLV320AIC23B) += tlv320aic23b.o
diff --git a/drivers/media/video/cs5345.c b/drivers/media/video/cs5345.c
new file mode 100644 (file)
index 0000000..fae469c
--- /dev/null
@@ -0,0 +1,168 @@
+/*
+ * cs5345 Cirrus Logic 24-bit, 192 kHz Stereo Audio ADC
+ * Copyright (C) 2007 Hans Verkuil
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-i2c-drv.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-chip-ident.h>
+
+MODULE_DESCRIPTION("i2c device driver for cs5345 Audio ADC");
+MODULE_AUTHOR("Hans Verkuil");
+MODULE_LICENSE("GPL");
+
+static int debug;
+
+module_param(debug, bool, 0644);
+
+MODULE_PARM_DESC(debug, "Debugging messages\n\t\t\t0=Off (default), 1=On");
+
+
+/* ----------------------------------------------------------------------- */
+
+static inline int cs5345_write(struct i2c_client *client, u8 reg, u8 value)
+{
+       return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static inline int cs5345_read(struct i2c_client *client, u8 reg)
+{
+       return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int cs5345_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+       struct v4l2_routing *route = arg;
+       struct v4l2_control *ctrl = arg;
+
+       switch (cmd) {
+       case VIDIOC_INT_G_AUDIO_ROUTING:
+               route->input = cs5345_read(client, 0x09) & 7;
+               route->input |= cs5345_read(client, 0x05) & 0x70;
+               route->output = 0;
+               break;
+
+       case VIDIOC_INT_S_AUDIO_ROUTING:
+               if ((route->input & 0xf) > 6) {
+                       v4l_err(client, "Invalid input %d.\n", route->input);
+                       return -EINVAL;
+               }
+               cs5345_write(client, 0x09, route->input & 0xf);
+               cs5345_write(client, 0x05, route->input & 0xf0);
+               break;
+
+       case VIDIOC_G_CTRL:
+               if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+                       ctrl->value = (cs5345_read(client, 0x04) & 0x08) != 0;
+                       break;
+               }
+               if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
+                       return -EINVAL;
+               ctrl->value = cs5345_read(client, 0x07) & 0x3f;
+               if (ctrl->value >= 32)
+                       ctrl->value = ctrl->value - 64;
+               break;
+
+       case VIDIOC_S_CTRL:
+               break;
+               if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+                       cs5345_write(client, 0x04, ctrl->value ? 0x80 : 0);
+                       break;
+               }
+               if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
+                       return -EINVAL;
+               if (ctrl->value > 24 || ctrl->value < -24)
+                       return -EINVAL;
+               cs5345_write(client, 0x07, ((u8)ctrl->value) & 0x3f);
+               cs5345_write(client, 0x08, ((u8)ctrl->value) & 0x3f);
+               break;
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+       case VIDIOC_DBG_G_REGISTER:
+       case VIDIOC_DBG_S_REGISTER:
+       {
+               struct v4l2_register *reg = arg;
+
+               if (!v4l2_chip_match_i2c_client(client,
+                                       reg->match_type, reg->match_chip))
+                       return -EINVAL;
+               if (!capable(CAP_SYS_ADMIN))
+                       return -EPERM;
+               if (cmd == VIDIOC_DBG_G_REGISTER)
+                       reg->val = cs5345_read(client, reg->reg & 0x1f);
+               else
+                       cs5345_write(client, reg->reg & 0x1f, reg->val & 0x1f);
+               break;
+       }
+#endif
+
+       case VIDIOC_G_CHIP_IDENT:
+               return v4l2_chip_ident_i2c_client(client,
+                               arg, V4L2_IDENT_CS5345, 0);
+
+       case VIDIOC_LOG_STATUS:
+               {
+                       u8 v = cs5345_read(client, 0x09) & 7;
+                       u8 m = cs5345_read(client, 0x04);
+                       int vol = cs5345_read(client, 0x08) & 0x3f;
+
+                       v4l_info(client, "Input:  %d%s\n", v,
+                                     (m & 0x80) ? " (muted)" : "");
+                       if (vol >= 32)
+                               vol = vol - 64;
+                       v4l_info(client, "Volume: %d dB\n", vol);
+                       break;
+               }
+
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int cs5345_probe(struct i2c_client *client)
+{
+       /* Check if the adapter supports the needed features */
+       if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+               return -EIO;
+
+       v4l_info(client, "chip found @ 0x%x (%s)\n",
+                       client->addr << 1, client->adapter->name);
+
+       cs5345_write(client, 0x02, 0x00);
+       cs5345_write(client, 0x04, 0x01);
+       cs5345_write(client, 0x09, 0x01);
+       return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+       .name = "cs5345",
+       .driverid = I2C_DRIVERID_CS5345,
+       .command = cs5345_command,
+       .probe = cs5345_probe,
+};
+
diff --git a/include/media/cs5345.h b/include/media/cs5345.h
new file mode 100644 (file)
index 0000000..6ccae24
--- /dev/null
@@ -0,0 +1,39 @@
+/*
+    cs5345.h - definition for cs5345 inputs and outputs
+
+    Copyright (C) 2007 Hans Verkuil (hverkuil@xs4all.nl)
+
+    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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef _CS5345_H_
+#define _CS5345_H_
+
+/* CS5345 HW inputs */
+#define CS5345_IN_MIC 0
+#define CS5345_IN_1   1
+#define CS5345_IN_2   2
+#define CS5345_IN_3   3
+#define CS5345_IN_4   4
+#define CS5345_IN_5   5
+#define CS5345_IN_6   6
+
+#define CS5345_MCLK_1   0x00
+#define CS5345_MCLK_1_5 0x10
+#define CS5345_MCLK_2   0x20
+#define CS5345_MCLK_3   0x30
+#define CS5345_MCLK_4   0x40
+
+#endif
index 2442c281e4feb1a78194710d3640f1ef0d6f3a27..032bb75f69c2ea7b92be53f274a52799c20e43eb 100644 (file)
@@ -68,6 +68,9 @@ enum {
        /* module vp27smpx: just ident 2700 */
        V4L2_IDENT_VP27SMPX = 2700,
 
+       /* module cs5345: just ident 5345 */
+       V4L2_IDENT_CS5345 = 5345,
+
        /* module wm8739: just ident 8739 */
        V4L2_IDENT_WM8739 = 8739,