[media] usbvision: add Nogatech USB MicroCam

Add Nogatech USB MicroCam PAL (NV3001P) and NTSC (NV3000N) support to
usbvision driver.
PAL version is tested, NTSC untested.
Data captured using usbsnoop, init_values are listed in the INF file along
with image dimensions, offsets and frame rates.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

6 files changed, 114 insertions, 5 deletions

diff --git a/drivers/media/video/usbvision/usbvision-cards.c b/drivers/media/video/usbvision/usbvision-cards.c
index 68b998bd203f..8f5266157f15 100644
--- a/drivers/media/video/usbvision/usbvision-cards.c
+++ b/drivers/media/video/usbvision/usbvision-cards.c
@@ -1025,6 +1025,34 @@ struct usbvision_device_data_st  usbvision_device_data[] = {
                 .y_offset       = -1,
                 .model_string   = "Hauppauge WinTv-USB",
         },
+        [MICROCAM_NTSC] = {
+                .interface      = -1,
+                .codec          = CODEC_WEBCAM,
+                .video_channels = 1,
+                .video_norm     = V4L2_STD_NTSC,
+                .audio_channels = 0,
+                .radio          = 0,
+                .vbi            = 0,
+                .tuner          = 0,
+                .tuner_type     = 0,
+                .x_offset       = 71,
+                .y_offset       = 15,
+                .model_string   = "Nogatech USB MicroCam NTSC (NV3000N)",
+        },
+        [MICROCAM_PAL] = {
+                .interface      = -1,
+                .codec          = CODEC_WEBCAM,
+                .video_channels = 1,
+                .video_norm     = V4L2_STD_PAL,
+                .audio_channels = 0,
+                .radio          = 0,
+                .vbi            = 0,
+                .tuner          = 0,
+                .tuner_type     = 0,
+                .x_offset       = 71,
+                .y_offset       = 18,
+                .model_string   = "Nogatech USB MicroCam PAL (NV3001P)",
+        },
 };
 const int usbvision_device_data_size = ARRAY_SIZE(usbvision_device_data);
 
@@ -1042,6 +1070,8 @@ struct usb_device_id usbvision_table[] = {
         { USB_DEVICE(0x0573, 0x2d00), .driver_info = HPG_WINTV_LIVE_PAL_BG },
         { USB_DEVICE(0x0573, 0x2d01), .driver_info = HPG_WINTV_LIVE_PRO_NTSC_MN },
         { USB_DEVICE(0x0573, 0x2101), .driver_info = ZORAN_PMD_NOGATECH },
+        { USB_DEVICE(0x0573, 0x3000), .driver_info = MICROCAM_NTSC },
+        { USB_DEVICE(0x0573, 0x3001), .driver_info = MICROCAM_PAL },
         { USB_DEVICE(0x0573, 0x4100), .driver_info = NOGATECH_USB_TV_NTSC_FM },
         { USB_DEVICE(0x0573, 0x4110), .driver_info = PNY_USB_TV_NTSC_FM },
         { USB_DEVICE(0x0573, 0x4450), .driver_info = PV_PLAYTV_USB_PRO_PAL_FM },
@@ -1088,8 +1118,7 @@ struct usb_device_id usbvision_table[] = {
         { USB_DEVICE(0x2304, 0x0110), .driver_info = PINNA_PCTV_USB_PAL_FM },
         { USB_DEVICE(0x2304, 0x0111), .driver_info = MIRO_PCTV_USB },
         { USB_DEVICE(0x2304, 0x0112), .driver_info = PINNA_PCTV_USB_NTSC_FM },
-        { USB_DEVICE(0x2304, 0x0113),
-          .driver_info = PINNA_PCTV_USB_NTSC_FM_V3 },
+        { USB_DEVICE(0x2304, 0x0113), .driver_info = PINNA_PCTV_USB_NTSC_FM_V3 },
         { USB_DEVICE(0x2304, 0x0210), .driver_info = PINNA_PCTV_USB_PAL_FM_V2 },
         { USB_DEVICE(0x2304, 0x0212), .driver_info = PINNA_PCTV_USB_NTSC_FM_V2 },
         { USB_DEVICE(0x2304, 0x0214), .driver_info = PINNA_PCTV_USB_PAL_FM_V3 },
diff --git a/drivers/media/video/usbvision/usbvision-cards.h b/drivers/media/video/usbvision/usbvision-cards.h
index 9c6ad22960d8..a51cc1185cce 100644
--- a/drivers/media/video/usbvision/usbvision-cards.h
+++ b/drivers/media/video/usbvision/usbvision-cards.h
@@ -63,5 +63,7 @@
 #define PINNA_PCTV_BUNGEE_PAL_FM                 62
 #define HPG_WINTV                                63
 #define PINNA_PCTV_USB_NTSC_FM_V3                64
+#define MICROCAM_NTSC                            65
+#define MICROCAM_PAL                             66
 
 extern const int usbvision_device_data_size;
diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c
index c8feb0d6fccf..89ac46277031 100644
--- a/drivers/media/video/usbvision/usbvision-core.c
+++ b/drivers/media/video/usbvision/usbvision-core.c
@@ -1679,6 +1679,55 @@ int usbvision_power_off(struct usb_usbvision *usbvision)
         return err_code;
 }
 
+/* configure webcam image sensor using the serial port */
+static int usbvision_init_webcam(struct usb_usbvision *usbvision)
+{
+        int rc;
+        int i;
+        static char init_values[38][3] = {
+                { 0x04, 0x12, 0x08 }, { 0x05, 0xff, 0xc8 }, { 0x06, 0x18, 0x07 }, { 0x07, 0x90, 0x00 },
+                { 0x09, 0x00, 0x00 }, { 0x0a, 0x00, 0x00 }, { 0x0b, 0x08, 0x00 }, { 0x0d, 0xcc, 0xcc },
+                { 0x0e, 0x13, 0x14 }, { 0x10, 0x9b, 0x83 }, { 0x11, 0x5a, 0x3f }, { 0x12, 0xe4, 0x73 },
+                { 0x13, 0x88, 0x84 }, { 0x14, 0x89, 0x80 }, { 0x15, 0x00, 0x20 }, { 0x16, 0x00, 0x00 },
+                { 0x17, 0xff, 0xa0 }, { 0x18, 0x6b, 0x20 }, { 0x19, 0x22, 0x40 }, { 0x1a, 0x10, 0x07 },
+                { 0x1b, 0x00, 0x47 }, { 0x1c, 0x03, 0xe0 }, { 0x1d, 0x00, 0x00 }, { 0x1e, 0x00, 0x00 },
+                { 0x1f, 0x00, 0x00 }, { 0x20, 0x00, 0x00 }, { 0x21, 0x00, 0x00 }, { 0x22, 0x00, 0x00 },
+                { 0x23, 0x00, 0x00 }, { 0x24, 0x00, 0x00 }, { 0x25, 0x00, 0x00 }, { 0x26, 0x00, 0x00 },
+                { 0x27, 0x00, 0x00 }, { 0x28, 0x00, 0x00 }, { 0x29, 0x00, 0x00 }, { 0x08, 0x80, 0x60 },
+                { 0x0f, 0x2d, 0x24 }, { 0x0c, 0x80, 0x80 }
+        };
+        char value[3];
+
+        /* the only difference between PAL and NTSC init_values */
+        if (usbvision_device_data[usbvision->dev_model].video_norm == V4L2_STD_NTSC)
+                init_values[4][1] = 0x34;
+
+        for (i = 0; i < sizeof(init_values) / 3; i++) {
+                usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT);
+                memcpy(value, init_values[i], 3);
+                rc = usb_control_msg(usbvision->dev,
+                                     usb_sndctrlpipe(usbvision->dev, 1),
+                                     USBVISION_OP_CODE,
+                                     USB_DIR_OUT | USB_TYPE_VENDOR |
+                                     USB_RECIP_ENDPOINT, 0,
+                                     (__u16) USBVISION_SER_DAT1, value,
+                                     3, HZ);
+                if (rc < 0)
+                        return rc;
+                usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SIO);
+                /* write 3 bytes to the serial port using SIO mode */
+                usbvision_write_reg(usbvision, USBVISION_SER_CONT, 3 | 0x10);
+                usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, 0);
+                usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT);
+                usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_IO_2);
+                usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT | USBVISION_CLK_OUT);
+                usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT | USBVISION_DAT_IO);
+                usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT | USBVISION_CLK_OUT | USBVISION_DAT_IO);
+        }
+
+        return 0;
+}
+
 /*
  * usbvision_set_video_format()
  *
@@ -1797,6 +1846,13 @@ int usbvision_set_output(struct usb_usbvision *usbvision, int width,
 
         frame_drop = FRAMERATE_MAX;     /* We can allow the maximum here, because dropping is controlled */
 
+        if (usbvision_device_data[usbvision->dev_model].codec == CODEC_WEBCAM) {
+                if (usbvision_device_data[usbvision->dev_model].video_norm == V4L2_STD_PAL)
+                        frame_drop = 25;
+                else
+                        frame_drop = 30;
+        }
+
         /* frame_drop = 7; => frame_phase = 1, 5, 9, 13, 17, 21, 25, 0, 4, 8, ...
                 => frame_skip = 4;
                 => frame_rate = (7 + 1) * 25 / 32 = 200 / 32 = 6.25;
@@ -2046,6 +2102,12 @@ int usbvision_set_input(struct usb_usbvision *usbvision)
                 value[7] = 0x00;        /* 0x0010 -> 16 Input video v offset */
         }
 
+        /* webcam is only 480 pixels wide, both PAL and NTSC version */
+        if (usbvision_device_data[usbvision->dev_model].codec == CODEC_WEBCAM) {
+                value[0] = 0xe0;
+                value[1] = 0x01;        /* 0x01E0 -> 480 Input video line length */
+        }
+
         if (usbvision_device_data[usbvision->dev_model].x_offset >= 0) {
                 value[4] = usbvision_device_data[usbvision->dev_model].x_offset & 0xff;
                 value[5] = (usbvision_device_data[usbvision->dev_model].x_offset & 0x0300) >> 8;
@@ -2148,7 +2210,7 @@ static int usbvision_set_dram_settings(struct usb_usbvision *usbvision)
                              (__u16) USBVISION_DRM_PRM1, value, 8, HZ);
 
         if (rc < 0) {
-                dev_err(&usbvision->dev->dev, "%sERROR=%d\n", __func__, rc);
+                dev_err(&usbvision->dev->dev, "%s: ERROR=%d\n", __func__, rc);
                 return rc;
         }
 
@@ -2180,8 +2242,15 @@ int usbvision_power_on(struct usb_usbvision *usbvision)
         usbvision_write_reg(usbvision, USBVISION_PWR_REG,
                         USBVISION_SSPND_EN | USBVISION_RES2);
 
+        if (usbvision_device_data[usbvision->dev_model].codec == CODEC_WEBCAM) {
+                usbvision_write_reg(usbvision, USBVISION_VIN_REG1,
+                                USBVISION_16_422_SYNC | USBVISION_HVALID_PO);
+                usbvision_write_reg(usbvision, USBVISION_VIN_REG2,
+                                USBVISION_NOHVALID | USBVISION_KEEP_BLANK);
+        }
         usbvision_write_reg(usbvision, USBVISION_PWR_REG,
                         USBVISION_SSPND_EN | USBVISION_PWR_VID);
+        mdelay(10);
         err_code = usbvision_write_reg(usbvision, USBVISION_PWR_REG,
                         USBVISION_SSPND_EN | USBVISION_PWR_VID | USBVISION_RES2);
         if (err_code == 1)
@@ -2310,6 +2379,8 @@ int usbvision_set_audio(struct usb_usbvision *usbvision, int audio_channel)
 
 int usbvision_setup(struct usb_usbvision *usbvision, int format)
 {
+        if (usbvision_device_data[usbvision->dev_model].codec == CODEC_WEBCAM)
+                usbvision_init_webcam(usbvision);
         usbvision_set_video_format(usbvision, format);
         usbvision_set_dram_settings(usbvision);
         usbvision_set_compress_params(usbvision);
diff --git a/drivers/media/video/usbvision/usbvision-i2c.c b/drivers/media/video/usbvision/usbvision-i2c.c
index 05b1344181cd..d7f97513b289 100644
--- a/drivers/media/video/usbvision/usbvision-i2c.c
+++ b/drivers/media/video/usbvision/usbvision-i2c.c
@@ -222,7 +222,7 @@ int usbvision_i2c_register(struct usb_usbvision *usbvision)
         i2c_set_adapdata(&usbvision->i2c_adap, &usbvision->v4l2_dev);
 
         if (usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_IIC_LRNACK) < 0) {
-                printk(KERN_ERR "usbvision_register: can't write reg\n");
+                printk(KERN_ERR "usbvision_i2c_register: can't write reg\n");
                 return -EBUSY;
         }
 
diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index 6083137f0bf8..711cd997e21c 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -1470,7 +1470,8 @@ static void usbvision_configure_video(struct usb_usbvision *usbvision)
 
         /* This should be here to make i2c clients to be able to register */
         /* first switch off audio */
-        usbvision_audio_off(usbvision);
+        if (usbvision_device_data[model].audio_channels > 0)
+                usbvision_audio_off(usbvision);
         if (!power_on_at_open) {
                 /* and then power up the noisy tuner */
                 usbvision_power_on(usbvision);
diff --git a/drivers/media/video/usbvision/usbvision.h b/drivers/media/video/usbvision/usbvision.h
index 8074787fd1ac..43cf61fe4943 100644
--- a/drivers/media/video/usbvision/usbvision.h
+++ b/drivers/media/video/usbvision/usbvision.h
@@ -59,6 +59,11 @@
         #define USBVISION_AUDIO_RADIO           2
         #define USBVISION_AUDIO_MUTE            3
 #define USBVISION_SER_MODE              0x07
+        #define USBVISION_CLK_OUT               (1 << 0)
+        #define USBVISION_DAT_IO                (1 << 1)
+        #define USBVISION_SENS_OUT              (1 << 2)
+        #define USBVISION_SER_MODE_SOFT         (0 << 4)
+        #define USBVISION_SER_MODE_SIO          (1 << 4)
 #define USBVISION_SER_ADRS              0x08
 #define USBVISION_SER_CONT              0x09
 #define USBVISION_SER_DAT1              0x0A
@@ -328,6 +333,7 @@ struct usbvision_frame {
 
 #define CODEC_SAA7113   7113
 #define CODEC_SAA7111   7111
+#define CODEC_WEBCAM    3000
 #define BRIDGE_NT1003   1003
 #define BRIDGE_NT1004   1004
 #define BRIDGE_NT1005   1005