V4L/DVB (13196): gspca - gl860: add flip/mirror for OV2640

- add flip/mirror support for OV2640
- fix for backlight value range
- fix for red-blue inversion hue mode with V4L1 applications

Signed-off-by: Olivier Lorin <o.lorin@laposte.net>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 41 insertions, 58 deletions

diff --git a/drivers/media/video/gspca/gl860/gl860-ov2640.c b/drivers/media/video/gspca/gl860/gl860-ov2640.c
index e0837432d394..768cac5cd72b 100644
--- a/drivers/media/video/gspca/gl860/gl860-ov2640.c
+++ b/drivers/media/video/gspca/gl860/gl860-ov2640.c
@@ -20,8 +20,12 @@
 #include "gl860.h"
 
 static u8 dat_init1[] = "\x00\x41\x07\x6a\x06\x61\x0d\x6a" "\x10\x10\xc1\x01";
-static u8 dat_init2[] = {0x61}; /* expected */
-static u8 dat_init3[] = {0x51}; /* expected */
+
+static u8 c61[] = {0x61}; /* expected */
+static u8 c51[] = {0x51}; /* expected */
+static u8 c50[] = {0x50}; /* expected */
+static u8 c28[] = {0x28}; /* expected */
+static u8 ca8[] = {0xa8}; /* expected */
 
 static u8 dat_post[] =
         "\x00\x41\x07\x6a\x06\xef\x0d\x6a" "\x10\x10\xc1\x01";
@@ -31,10 +35,6 @@ static u8 dat_800[]  = "\xd0\x01\xd1\x10\xd2\x58\xd3\x02\xd4\x18\xd5\x21";
 static u8 dat_1280[] = "\xd0\x01\xd1\x18\xd2\xc0\xd3\x02\xd4\x28\xd5\x01";
 static u8 dat_1600[] = "\xd0\x01\xd1\x20\xd2\xb0\xd3\x02\xd4\x30\xd5\x41";
 
-static u8 c50[] = {0x50}; /* expected */
-static u8 c28[] = {0x28}; /* expected */
-static u8 ca8[] = {0xa8}; /* expected */
-
 static struct validx tbl_init_at_startup[] = {
         {0x0000, 0x0000}, {0x0010, 0x0010}, {0x0008, 0x00c0}, {0x0001, 0x00c1},
         {0x0001, 0x00c2}, {0x0020, 0x0006}, {0x006a, 0x000d},
@@ -107,36 +107,6 @@ static struct validx tbl_sensor_settings_common2[] = {
         {0x6001, 0x00ff}, {0x6038, 0x000c},
         {10, 0xffff},
         {0x6000, 0x0011},
-        /* backlight=31/64 */
-        {0x6001, 0x00ff}, {0x603e, 0x0024}, {0x6034, 0x0025},
-        /* bright=0/256 */
-        {0x6000, 0x00ff}, {0x6009, 0x007c}, {0x6000, 0x007d},
-        /* wbal=64/128 */
-        {0x6000, 0x00ff}, {0x6003, 0x007c}, {0x6040, 0x007d},
-        /* cntr=0/256 */
-        {0x6000, 0x00ff}, {0x6007, 0x007c}, {0x6000, 0x007d},
-        /* sat=128/256 */
-        {0x6000, 0x00ff}, {0x6001, 0x007c}, {0x6080, 0x007d},
-        /* sharpness=0/32 */
-        {0x6000, 0x00ff}, {0x6001, 0x0092}, {0x60c0, 0x0093},
-        /* hue=0/256 */
-        {0x6000, 0x00ff}, {0x6002, 0x007c}, {0x6000, 0x007d},
-        /* gam=32/64 */
-        {0x6000, 0x00ff}, {0x6008, 0x007c}, {0x6020, 0x007d},
-        /* image right up */
-        {0xffff, 0xffff},
-        {15, 0xffff},
-        {0x6001, 0x00ff}, {0x6000, 0x8004},
-        {0xffff, 0xffff},
-        {0x60a8, 0x0004},
-        {15, 0xffff},
-        {0x6001, 0x00ff}, {0x6000, 0x8004},
-        {0xffff, 0xffff},
-        {0x60f8, 0x0004},
-        /* image right up */
-        {0xffff, 0xffff},
-        /* backlight=31/64 */
-        {0x6001, 0x00ff}, {0x603e, 0x0024}, {0x6034, 0x0025},
 };
 
 static struct validx tbl_640[] = {
@@ -222,17 +192,19 @@ void ov2640_init_settings(struct gspca_dev *gspca_dev)
         sd->vcur.hue        =   0;
         sd->vcur.saturation = 128;
         sd->vcur.whitebal   =  64;
+        sd->vcur.mirror     =   0;
+        sd->vcur.flip       =   0;
 
         sd->vmax.backlight  =  64;
         sd->vmax.brightness = 255;
         sd->vmax.sharpness  =  31;
         sd->vmax.contrast   = 255;
         sd->vmax.gamma      =  64;
-        sd->vmax.hue        = 255 + 1;
+        sd->vmax.hue        = 254 + 2;
         sd->vmax.saturation = 255;
         sd->vmax.whitebal   = 128;
-        sd->vmax.mirror     = 0;
-        sd->vmax.flip       = 0;
+        sd->vmax.mirror     = 1;
+        sd->vmax.flip       = 1;
         sd->vmax.AC50Hz     = 0;
 
         sd->dev_camera_settings = ov2640_camera_settings;
@@ -258,11 +230,11 @@ static int ov2640_init_at_startup(struct gspca_dev *gspca_dev)
 
         common(gspca_dev);
 
-        ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0006, 1, dat_init2);
+        ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0006, 1, c61);
 
         ctrl_out(gspca_dev, 0x40, 1, 0x00ef, 0x0006, 0, NULL);
 
-        ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0000, 1, dat_init3);
+        ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0000, 1, c51);
 
         ctrl_out(gspca_dev, 0x40, 1, 0x0051, 0x0000, 0, NULL);
 /*      ctrl_out(gspca_dev, 0x40, 11, 0x0000, 0x0000, 0, NULL); */
@@ -284,6 +256,8 @@ static int ov2640_init_pre_alt(struct gspca_dev *gspca_dev)
         sd->vold.gamma    = -1;
         sd->vold.hue      = -1;
         sd->vold.whitebal = -1;
+        sd->vold.mirror = -1;
+        sd->vold.flip   = -1;
 
         ov2640_init_post_alt(gspca_dev);
 
@@ -346,18 +320,6 @@ static int ov2640_init_post_alt(struct gspca_dev *gspca_dev)
 
         n = fetch_validx(gspca_dev, tbl_sensor_settings_common2,
                         ARRAY_SIZE(tbl_sensor_settings_common2));
-        ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0000, 1, c50);
-        keep_on_fetching_validx(gspca_dev, tbl_sensor_settings_common2,
-                                ARRAY_SIZE(tbl_sensor_settings_common2), n);
-        ctrl_in(gspca_dev, 0xc0, 2, 0x6000, 0x8004, 1, c28);
-        keep_on_fetching_validx(gspca_dev, tbl_sensor_settings_common2,
-                                ARRAY_SIZE(tbl_sensor_settings_common2), n);
-        ctrl_in(gspca_dev, 0xc0, 2, 0x6000, 0x8004, 1, ca8);
-        keep_on_fetching_validx(gspca_dev, tbl_sensor_settings_common2,
-                                ARRAY_SIZE(tbl_sensor_settings_common2), n);
-        ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0000, 1, c50);
-        keep_on_fetching_validx(gspca_dev, tbl_sensor_settings_common2,
-                                ARRAY_SIZE(tbl_sensor_settings_common2), n);
 
         ov2640_camera_settings(gspca_dev);
 
@@ -394,6 +356,8 @@ static int ov2640_camera_settings(struct gspca_dev *gspca_dev)
         s32 sat    = sd->vcur.saturation;
         s32 hue    = sd->vcur.hue;
         s32 wbal   = sd->vcur.whitebal;
+        s32 mirror = (((sd->vcur.mirror > 0) ^ sd->mirrorMask) == 0);
+        s32 flip   = (((sd->vcur.flip   > 0) ^ sd->mirrorMask) == 0);
 
         if (backlight != sd->vold.backlight) {
                 /* No sd->vold.backlight=backlight; (to be done again later) */
@@ -402,9 +366,9 @@ static int ov2640_camera_settings(struct gspca_dev *gspca_dev)
 
                 ctrl_out(gspca_dev, 0x40, 1, 0x6001                 , 0x00ff,
                                 0, NULL);
-                ctrl_out(gspca_dev, 0x40, 1, 0x601f + backlight     , 0x0024,
+                ctrl_out(gspca_dev, 0x40, 1, 0x601e + backlight     , 0x0024,
                                 0, NULL);
-                ctrl_out(gspca_dev, 0x40, 1, 0x601f + backlight - 10, 0x0025,
+                ctrl_out(gspca_dev, 0x40, 1, 0x601e + backlight - 10, 0x0025,
                                 0, NULL);
         }
 
@@ -467,7 +431,7 @@ static int ov2640_camera_settings(struct gspca_dev *gspca_dev)
                 ctrl_out(gspca_dev, 0x40, 1, 0x6002     , 0x007c, 0, NULL);
                 ctrl_out(gspca_dev, 0x40, 1, 0x6000 + hue * (hue < 255), 0x007d,
                                 0, NULL);
-                if (hue >= sd->vmax.hue)
+                if (hue >= 255)
                         sd->swapRB = 1;
                 else
                         sd->swapRB = 0;
@@ -483,14 +447,33 @@ static int ov2640_camera_settings(struct gspca_dev *gspca_dev)
                 ctrl_out(gspca_dev, 0x40, 1, 0x6000 + gam, 0x007d, 0, NULL);
         }
 
+        if (mirror != sd->vold.mirror || flip != sd->vold.flip) {
+                sd->vold.mirror = mirror;
+                sd->vold.flip   = flip;
+
+                mirror = 0x80 * mirror;
+                ctrl_out(gspca_dev, 0x40, 1, 0x6001, 0x00ff, 0, NULL);
+                ctrl_out(gspca_dev, 0x40, 1, 0x6000, 0x8004, 0, NULL);
+                ctrl_in(gspca_dev, 0xc0, 2, 0x6000, 0x8004, 1, c28);
+                ctrl_out(gspca_dev, 0x40, 1, 0x6028 + mirror, 0x0004, 0, NULL);
+
+                flip = 0x50 * flip + mirror;
+                ctrl_out(gspca_dev, 0x40, 1, 0x6001, 0x00ff, 0, NULL);
+                ctrl_out(gspca_dev, 0x40, 1, 0x6000, 0x8004, 0, NULL);
+                ctrl_in(gspca_dev, 0xc0, 2, 0x6000, 0x8004, 1, ca8);
+                ctrl_out(gspca_dev, 0x40, 1, 0x6028 + flip, 0x0004, 0, NULL);
+
+                ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0000, 1, c50);
+        }
+
         if (backlight != sd->vold.backlight) {
                 sd->vold.backlight = backlight;
 
                 ctrl_out(gspca_dev, 0x40, 1, 0x6001                 , 0x00ff,
                                 0, NULL);
-                ctrl_out(gspca_dev, 0x40, 1, 0x601f + backlight     , 0x0024,
+                ctrl_out(gspca_dev, 0x40, 1, 0x601e + backlight     , 0x0024,
                                 0, NULL);
-                ctrl_out(gspca_dev, 0x40, 1, 0x601f + backlight - 10, 0x0025,
+                ctrl_out(gspca_dev, 0x40, 1, 0x601e + backlight - 10, 0x0025,
                                 0, NULL);
         }