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Commit 4c28078c authored by Koji Matsuoka's avatar Koji Matsuoka Committed by Mauro Carvalho Chehab
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[media] rcar_vin: Add scaling support 

Signed-off-by: default avatarKoji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: default avatarYoshihiro Kaneko <ykaneko0929@gmail.com>
[g.liakhovetski@gmx.de: minor stylistic and formatting corrections]
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 76deaff8
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Showing with 442 additions and 9 deletions
drivers/media/platform/soc_camera/rcar_vin.c
View file @ 4c28078c
......@@ -64,6 +64,30 @@
#define VNDMR_REG 0x58 /* Video n Data Mode Register */
#define VNDMR2_REG 0x5C /* Video n Data Mode Register 2 */
#define VNUVAOF_REG 0x60 /* Video n UV Address Offset Register */
#define VNC1A_REG 0x80 /* Video n Coefficient Set C1A Register */
#define VNC1B_REG 0x84 /* Video n Coefficient Set C1B Register */
#define VNC1C_REG 0x88 /* Video n Coefficient Set C1C Register */
#define VNC2A_REG 0x90 /* Video n Coefficient Set C2A Register */
#define VNC2B_REG 0x94 /* Video n Coefficient Set C2B Register */
#define VNC2C_REG 0x98 /* Video n Coefficient Set C2C Register */
#define VNC3A_REG 0xA0 /* Video n Coefficient Set C3A Register */
#define VNC3B_REG 0xA4 /* Video n Coefficient Set C3B Register */
#define VNC3C_REG 0xA8 /* Video n Coefficient Set C3C Register */
#define VNC4A_REG 0xB0 /* Video n Coefficient Set C4A Register */
#define VNC4B_REG 0xB4 /* Video n Coefficient Set C4B Register */
#define VNC4C_REG 0xB8 /* Video n Coefficient Set C4C Register */
#define VNC5A_REG 0xC0 /* Video n Coefficient Set C5A Register */
#define VNC5B_REG 0xC4 /* Video n Coefficient Set C5B Register */
#define VNC5C_REG 0xC8 /* Video n Coefficient Set C5C Register */
#define VNC6A_REG 0xD0 /* Video n Coefficient Set C6A Register */
#define VNC6B_REG 0xD4 /* Video n Coefficient Set C6B Register */
#define VNC6C_REG 0xD8 /* Video n Coefficient Set C6C Register */
#define VNC7A_REG 0xE0 /* Video n Coefficient Set C7A Register */
#define VNC7B_REG 0xE4 /* Video n Coefficient Set C7B Register */
#define VNC7C_REG 0xE8 /* Video n Coefficient Set C7C Register */
#define VNC8A_REG 0xF0 /* Video n Coefficient Set C8A Register */
#define VNC8B_REG 0xF4 /* Video n Coefficient Set C8B Register */
#define VNC8C_REG 0xF8 /* Video n Coefficient Set C8C Register */
/* Register bit fields for R-Car VIN */
/* Video n Main Control Register bits */
......@@ -117,6 +141,324 @@ enum chip_id {
RCAR_E1,
};
struct vin_coeff {
unsigned short xs_value;
u32 coeff_set[24];
};
static const struct vin_coeff vin_coeff_set[] = {
{ 0x0000, {
0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000 },
},
{ 0x1000, {
0x000fa400, 0x000fa400, 0x09625902,
0x000003f8, 0x00000403, 0x3de0d9f0,
0x001fffed, 0x00000804, 0x3cc1f9c3,
0x001003de, 0x00000c01, 0x3cb34d7f,
0x002003d2, 0x00000c00, 0x3d24a92d,
0x00200bca, 0x00000bff, 0x3df600d2,
0x002013cc, 0x000007ff, 0x3ed70c7e,
0x00100fde, 0x00000000, 0x3f87c036 },
},
{ 0x1200, {
0x002ffff1, 0x002ffff1, 0x02a0a9c8,
0x002003e7, 0x001ffffa, 0x000185bc,
0x002007dc, 0x000003ff, 0x3e52859c,
0x00200bd4, 0x00000002, 0x3d53996b,
0x00100fd0, 0x00000403, 0x3d04ad2d,
0x00000bd5, 0x00000403, 0x3d35ace7,
0x3ff003e4, 0x00000801, 0x3dc674a1,
0x3fffe800, 0x00000800, 0x3e76f461 },
},
{ 0x1400, {
0x00100be3, 0x00100be3, 0x04d1359a,
0x00000fdb, 0x002003ed, 0x0211fd93,
0x00000fd6, 0x002003f4, 0x0002d97b,
0x000007d6, 0x002ffffb, 0x3e93b956,
0x3ff003da, 0x001003ff, 0x3db49926,
0x3fffefe9, 0x00100001, 0x3d655cee,
0x3fffd400, 0x00000003, 0x3d65f4b6,
0x000fb421, 0x00000402, 0x3dc6547e },
},
{ 0x1600, {
0x00000bdd, 0x00000bdd, 0x06519578,
0x3ff007da, 0x00000be3, 0x03c24973,
0x3ff003d9, 0x00000be9, 0x01b30d5f,
0x3ffff7df, 0x001003f1, 0x0003c542,
0x000fdfec, 0x001003f7, 0x3ec4711d,
0x000fc400, 0x002ffffd, 0x3df504f1,
0x001fa81a, 0x002ffc00, 0x3d957cc2,
0x002f8c3c, 0x00100000, 0x3db5c891 },
},
{ 0x1800, {
0x3ff003dc, 0x3ff003dc, 0x0791e558,
0x000ff7dd, 0x3ff007de, 0x05328554,
0x000fe7e3, 0x3ff00be2, 0x03232546,
0x000fd7ee, 0x000007e9, 0x0143bd30,
0x001fb800, 0x000007ee, 0x00044511,
0x002fa015, 0x000007f4, 0x3ef4bcee,
0x002f8832, 0x001003f9, 0x3e4514c7,
0x001f7853, 0x001003fd, 0x3de54c9f },
},
{ 0x1a00, {
0x000fefe0, 0x000fefe0, 0x08721d3c,
0x001fdbe7, 0x000ffbde, 0x0652a139,
0x001fcbf0, 0x000003df, 0x0463292e,
0x002fb3ff, 0x3ff007e3, 0x0293a91d,
0x002f9c12, 0x3ff00be7, 0x01241905,
0x001f8c29, 0x000007ed, 0x3fe470eb,
0x000f7c46, 0x000007f2, 0x3f04b8ca,
0x3fef7865, 0x000007f6, 0x3e74e4a8 },
},
{ 0x1c00, {
0x001fd3e9, 0x001fd3e9, 0x08f23d26,
0x002fbff3, 0x001fe3e4, 0x0712ad23,
0x002fa800, 0x000ff3e0, 0x05631d1b,
0x001f9810, 0x000ffbe1, 0x03b3890d,
0x000f8c23, 0x000003e3, 0x0233e8fa,
0x3fef843b, 0x000003e7, 0x00f430e4,
0x3fbf8456, 0x3ff00bea, 0x00046cc8,
0x3f8f8c72, 0x3ff00bef, 0x3f3490ac },
},
{ 0x1e00, {
0x001fbbf4, 0x001fbbf4, 0x09425112,
0x001fa800, 0x002fc7ed, 0x0792b110,
0x000f980e, 0x001fdbe6, 0x0613110a,
0x3fff8c20, 0x001fe7e3, 0x04a368fd,
0x3fcf8c33, 0x000ff7e2, 0x0343b8ed,
0x3f9f8c4a, 0x000fffe3, 0x0203f8da,
0x3f5f9c61, 0x000003e6, 0x00e428c5,
0x3f1fb07b, 0x000003eb, 0x3fe440af },
},
{ 0x2000, {
0x000fa400, 0x000fa400, 0x09625902,
0x3fff980c, 0x001fb7f5, 0x0812b0ff,
0x3fdf901c, 0x001fc7ed, 0x06b2fcfa,
0x3faf902d, 0x001fd3e8, 0x055348f1,
0x3f7f983f, 0x001fe3e5, 0x04038ce3,
0x3f3fa454, 0x001fefe3, 0x02e3c8d1,
0x3f0fb86a, 0x001ff7e4, 0x01c3e8c0,
0x3ecfd880, 0x000fffe6, 0x00c404ac },
},
{ 0x2200, {
0x3fdf9c0b, 0x3fdf9c0b, 0x09725cf4,
0x3fbf9818, 0x3fffa400, 0x0842a8f1,
0x3f8f9827, 0x000fb3f7, 0x0702f0ec,
0x3f5fa037, 0x000fc3ef, 0x05d330e4,
0x3f2fac49, 0x001fcfea, 0x04a364d9,
0x3effc05c, 0x001fdbe7, 0x038394ca,
0x3ecfdc6f, 0x001fe7e6, 0x0273b0bb,
0x3ea00083, 0x001fefe6, 0x0183c0a9 },
},
{ 0x2400, {
0x3f9fa014, 0x3f9fa014, 0x098260e6,
0x3f7f9c23, 0x3fcf9c0a, 0x08629ce5,
0x3f4fa431, 0x3fefa400, 0x0742d8e1,
0x3f1fb440, 0x3fffb3f8, 0x062310d9,
0x3eefc850, 0x000fbbf2, 0x050340d0,
0x3ecfe062, 0x000fcbec, 0x041364c2,
0x3ea00073, 0x001fd3ea, 0x03037cb5,
0x3e902086, 0x001fdfe8, 0x022388a5 },
},
{ 0x2600, {
0x3f5fa81e, 0x3f5fa81e, 0x096258da,
0x3f3fac2b, 0x3f8fa412, 0x088290d8,
0x3f0fbc38, 0x3fafa408, 0x0772c8d5,
0x3eefcc47, 0x3fcfa800, 0x0672f4ce,
0x3ecfe456, 0x3fefaffa, 0x05531cc6,
0x3eb00066, 0x3fffbbf3, 0x047334bb,
0x3ea01c77, 0x000fc7ee, 0x039348ae,
0x3ea04486, 0x000fd3eb, 0x02b350a1 },
},
{ 0x2800, {
0x3f2fb426, 0x3f2fb426, 0x094250ce,
0x3f0fc032, 0x3f4fac1b, 0x086284cd,
0x3eefd040, 0x3f7fa811, 0x0782acc9,
0x3ecfe84c, 0x3f9fa807, 0x06a2d8c4,
0x3eb0005b, 0x3fbfac00, 0x05b2f4bc,
0x3eb0186a, 0x3fdfb3fa, 0x04c308b4,
0x3eb04077, 0x3fefbbf4, 0x03f31ca8,
0x3ec06884, 0x000fbff2, 0x03031c9e },
},
{ 0x2a00, {
0x3f0fc42d, 0x3f0fc42d, 0x090240c4,
0x3eefd439, 0x3f2fb822, 0x08526cc2,
0x3edfe845, 0x3f4fb018, 0x078294bf,
0x3ec00051, 0x3f6fac0f, 0x06b2b4bb,
0x3ec0185f, 0x3f8fac07, 0x05e2ccb4,
0x3ec0386b, 0x3fafac00, 0x0502e8ac,
0x3ed05c77, 0x3fcfb3fb, 0x0432f0a3,
0x3ef08482, 0x3fdfbbf6, 0x0372f898 },
},
{ 0x2c00, {
0x3eefdc31, 0x3eefdc31, 0x08e238b8,
0x3edfec3d, 0x3f0fc828, 0x082258b9,
0x3ed00049, 0x3f1fc01e, 0x077278b6,
0x3ed01455, 0x3f3fb815, 0x06c294b2,
0x3ed03460, 0x3f5fb40d, 0x0602acac,
0x3ef0506c, 0x3f7fb006, 0x0542c0a4,
0x3f107476, 0x3f9fb400, 0x0472c89d,
0x3f309c80, 0x3fbfb7fc, 0x03b2cc94 },
},
{ 0x2e00, {
0x3eefec37, 0x3eefec37, 0x088220b0,
0x3ee00041, 0x3effdc2d, 0x07f244ae,
0x3ee0144c, 0x3f0fd023, 0x07625cad,
0x3ef02c57, 0x3f1fc81a, 0x06c274a9,
0x3f004861, 0x3f3fbc13, 0x060288a6,
0x3f20686b, 0x3f5fb80c, 0x05529c9e,
0x3f408c74, 0x3f6fb805, 0x04b2ac96,
0x3f80ac7e, 0x3f8fb800, 0x0402ac8e },
},
{ 0x3000, {
0x3ef0003a, 0x3ef0003a, 0x084210a6,
0x3ef01045, 0x3effec32, 0x07b228a7,
0x3f00284e, 0x3f0fdc29, 0x073244a4,
0x3f104058, 0x3f0fd420, 0x06a258a2,
0x3f305c62, 0x3f2fc818, 0x0612689d,
0x3f508069, 0x3f3fc011, 0x05728496,
0x3f80a072, 0x3f4fc00a, 0x04d28c90,
0x3fc0c07b, 0x3f6fbc04, 0x04429088 },
},
{ 0x3200, {
0x3f00103e, 0x3f00103e, 0x07f1fc9e,
0x3f102447, 0x3f000035, 0x0782149d,
0x3f203c4f, 0x3f0ff02c, 0x07122c9c,
0x3f405458, 0x3f0fe424, 0x06924099,
0x3f607061, 0x3f1fd41d, 0x06024c97,
0x3f909068, 0x3f2fcc16, 0x05726490,
0x3fc0b070, 0x3f3fc80f, 0x04f26c8a,
0x0000d077, 0x3f4fc409, 0x04627484 },
},
{ 0x3400, {
0x3f202040, 0x3f202040, 0x07a1e898,
0x3f303449, 0x3f100c38, 0x0741fc98,
0x3f504c50, 0x3f10002f, 0x06e21495,
0x3f706459, 0x3f1ff028, 0x06722492,
0x3fa08060, 0x3f1fe421, 0x05f2348f,
0x3fd09c67, 0x3f1fdc19, 0x05824c89,
0x0000bc6e, 0x3f2fd014, 0x04f25086,
0x0040dc74, 0x3f3fcc0d, 0x04825c7f },
},
{ 0x3600, {
0x3f403042, 0x3f403042, 0x0761d890,
0x3f504848, 0x3f301c3b, 0x0701f090,
0x3f805c50, 0x3f200c33, 0x06a2008f,
0x3fa07458, 0x3f10002b, 0x06520c8d,
0x3fd0905e, 0x3f1ff424, 0x05e22089,
0x0000ac65, 0x3f1fe81d, 0x05823483,
0x0030cc6a, 0x3f2fdc18, 0x04f23c81,
0x0080e871, 0x3f2fd412, 0x0482407c },
},
{ 0x3800, {
0x3f604043, 0x3f604043, 0x0721c88a,
0x3f80544a, 0x3f502c3c, 0x06d1d88a,
0x3fb06851, 0x3f301c35, 0x0681e889,
0x3fd08456, 0x3f30082f, 0x0611fc88,
0x00009c5d, 0x3f200027, 0x05d20884,
0x0030b863, 0x3f2ff421, 0x05621880,
0x0070d468, 0x3f2fe81b, 0x0502247c,
0x00c0ec6f, 0x3f2fe015, 0x04a22877 },
},
{ 0x3a00, {
0x3f904c44, 0x3f904c44, 0x06e1b884,
0x3fb0604a, 0x3f70383e, 0x0691c885,
0x3fe07451, 0x3f502c36, 0x0661d483,
0x00009055, 0x3f401831, 0x0601ec81,
0x0030a85b, 0x3f300c2a, 0x05b1f480,
0x0070c061, 0x3f300024, 0x0562047a,
0x00b0d867, 0x3f3ff41e, 0x05020c77,
0x00f0f46b, 0x3f2fec19, 0x04a21474 },
},
{ 0x3c00, {
0x3fb05c43, 0x3fb05c43, 0x06c1b07e,
0x3fe06c4b, 0x3f902c3f, 0x0681c081,
0x0000844f, 0x3f703838, 0x0631cc7d,
0x00309855, 0x3f602433, 0x05d1d47e,
0x0060b459, 0x3f50142e, 0x0581e47b,
0x00a0c85f, 0x3f400828, 0x0531f078,
0x00e0e064, 0x3f300021, 0x0501fc73,
0x00b0fc6a, 0x3f3ff41d, 0x04a20873 },
},
{ 0x3e00, {
0x3fe06444, 0x3fe06444, 0x0681a07a,
0x00007849, 0x3fc0503f, 0x0641b07a,
0x0020904d, 0x3fa0403a, 0x05f1c07a,
0x0060a453, 0x3f803034, 0x05c1c878,
0x0090b858, 0x3f70202f, 0x0571d477,
0x00d0d05d, 0x3f501829, 0x0531e073,
0x0110e462, 0x3f500825, 0x04e1e471,
0x01510065, 0x3f40001f, 0x04a1f06d },
},
{ 0x4000, {
0x00007044, 0x00007044, 0x06519476,
0x00208448, 0x3fe05c3f, 0x0621a476,
0x0050984d, 0x3fc04c3a, 0x05e1b075,
0x0080ac52, 0x3fa03c35, 0x05a1b875,
0x00c0c056, 0x3f803030, 0x0561c473,
0x0100d45b, 0x3f70202b, 0x0521d46f,
0x0140e860, 0x3f601427, 0x04d1d46e,
0x01810064, 0x3f500822, 0x0491dc6b },
},
{ 0x5000, {
0x0110a442, 0x0110a442, 0x0551545e,
0x0140b045, 0x00e0983f, 0x0531585f,
0x0160c047, 0x00c08c3c, 0x0511645e,
0x0190cc4a, 0x00908039, 0x04f1685f,
0x01c0dc4c, 0x00707436, 0x04d1705e,
0x0200e850, 0x00506833, 0x04b1785b,
0x0230f453, 0x00305c30, 0x0491805a,
0x02710056, 0x0010542d, 0x04718059 },
},
{ 0x6000, {
0x01c0bc40, 0x01c0bc40, 0x04c13052,
0x01e0c841, 0x01a0b43d, 0x04c13851,
0x0210cc44, 0x0180a83c, 0x04a13453,
0x0230d845, 0x0160a03a, 0x04913c52,
0x0260e047, 0x01409838, 0x04714052,
0x0280ec49, 0x01208c37, 0x04514c50,
0x02b0f44b, 0x01008435, 0x04414c50,
0x02d1004c, 0x00e07c33, 0x0431544f },
},
{ 0x7000, {
0x0230c83e, 0x0230c83e, 0x04711c4c,
0x0250d03f, 0x0210c43c, 0x0471204b,
0x0270d840, 0x0200b83c, 0x0451244b,
0x0290dc42, 0x01e0b43a, 0x0441244c,
0x02b0e443, 0x01c0b038, 0x0441284b,
0x02d0ec44, 0x01b0a438, 0x0421304a,
0x02f0f445, 0x0190a036, 0x04213449,
0x0310f847, 0x01709c34, 0x04213848 },
},
{ 0x8000, {
0x0280d03d, 0x0280d03d, 0x04310c48,
0x02a0d43e, 0x0270c83c, 0x04311047,
0x02b0dc3e, 0x0250c83a, 0x04311447,
0x02d0e040, 0x0240c03a, 0x04211446,
0x02e0e840, 0x0220bc39, 0x04111847,
0x0300e842, 0x0210b438, 0x04012445,
0x0310f043, 0x0200b037, 0x04012045,
0x0330f444, 0x01e0ac36, 0x03f12445 },
},
{ 0xefff, {
0x0340dc3a, 0x0340dc3a, 0x03b0ec40,
0x0340e03a, 0x0330e039, 0x03c0f03e,
0x0350e03b, 0x0330dc39, 0x03c0ec3e,
0x0350e43a, 0x0320dc38, 0x03c0f43e,
0x0360e43b, 0x0320d839, 0x03b0f03e,
0x0360e83b, 0x0310d838, 0x03c0fc3b,
0x0370e83b, 0x0310d439, 0x03a0f83d,
0x0370e83c, 0x0300d438, 0x03b0fc3c },
}
};
enum rcar_vin_state {
STOPPED = 0,
RUNNING,
......@@ -161,6 +503,9 @@ struct rcar_vin_cam {
/* Client output, as seen by the VIN */
unsigned int width;
unsigned int height;
/* User window from S_FMT */
unsigned int out_width;
unsigned int out_height;
/*
* User window from S_CROP / G_CROP, produced by client cropping and
* scaling, VIN scaling and VIN cropping, mapped back onto the client
......@@ -667,6 +1012,60 @@ static void rcar_vin_clock_stop(struct soc_camera_host *ici)
/* VIN does not have "mclk" */
}
static void set_coeff(struct rcar_vin_priv *priv, unsigned short xs)
{
int i;
const struct vin_coeff *p_prev_set = NULL;
const struct vin_coeff *p_set = NULL;
/* Look for suitable coefficient values */
for (i = 0; i < ARRAY_SIZE(vin_coeff_set); i++) {
p_prev_set = p_set;
p_set = &vin_coeff_set[i];
if (xs < p_set->xs_value)
break;
}
/* Use previous value if its XS value is closer */
if (p_prev_set && p_set &&
xs - p_prev_set->xs_value < p_set->xs_value - xs)
p_set = p_prev_set;
/* Set coefficient registers */
iowrite32(p_set->coeff_set[0], priv->base + VNC1A_REG);
iowrite32(p_set->coeff_set[1], priv->base + VNC1B_REG);
iowrite32(p_set->coeff_set[2], priv->base + VNC1C_REG);
iowrite32(p_set->coeff_set[3], priv->base + VNC2A_REG);
iowrite32(p_set->coeff_set[4], priv->base + VNC2B_REG);
iowrite32(p_set->coeff_set[5], priv->base + VNC2C_REG);
iowrite32(p_set->coeff_set[6], priv->base + VNC3A_REG);
iowrite32(p_set->coeff_set[7], priv->base + VNC3B_REG);
iowrite32(p_set->coeff_set[8], priv->base + VNC3C_REG);
iowrite32(p_set->coeff_set[9], priv->base + VNC4A_REG);
iowrite32(p_set->coeff_set[10], priv->base + VNC4B_REG);
iowrite32(p_set->coeff_set[11], priv->base + VNC4C_REG);
iowrite32(p_set->coeff_set[12], priv->base + VNC5A_REG);
iowrite32(p_set->coeff_set[13], priv->base + VNC5B_REG);
iowrite32(p_set->coeff_set[14], priv->base + VNC5C_REG);
iowrite32(p_set->coeff_set[15], priv->base + VNC6A_REG);
iowrite32(p_set->coeff_set[16], priv->base + VNC6B_REG);
iowrite32(p_set->coeff_set[17], priv->base + VNC6C_REG);
iowrite32(p_set->coeff_set[18], priv->base + VNC7A_REG);
iowrite32(p_set->coeff_set[19], priv->base + VNC7B_REG);
iowrite32(p_set->coeff_set[20], priv->base + VNC7C_REG);
iowrite32(p_set->coeff_set[21], priv->base + VNC8A_REG);
iowrite32(p_set->coeff_set[22], priv->base + VNC8B_REG);
iowrite32(p_set->coeff_set[23], priv->base + VNC8C_REG);
}
/* rect is guaranteed to not exceed the scaled camera rectangle */
static int rcar_vin_set_rect(struct soc_camera_device *icd)
{
......@@ -676,6 +1075,7 @@ static int rcar_vin_set_rect(struct soc_camera_device *icd)
unsigned int left_offset, top_offset;
unsigned char dsize = 0;
struct v4l2_rect *cam_subrect = &cam->subrect;
u32 value;
dev_dbg(icd->parent, "Crop %ux%u@%u:%u\n",
icd->user_width, icd->user_height, cam->vin_left, cam->vin_top);
......@@ -695,40 +1095,64 @@ static int rcar_vin_set_rect(struct soc_camera_device *icd)
/* Set Start/End Pixel/Line Pre-Clip */
iowrite32(left_offset << dsize, priv->base + VNSPPRC_REG);
iowrite32((left_offset + cam->width - 1) << dsize,
iowrite32((left_offset + cam_subrect->width - 1) << dsize,
priv->base + VNEPPRC_REG);
switch (priv->field) {
case V4L2_FIELD_INTERLACED:
case V4L2_FIELD_INTERLACED_TB:
case V4L2_FIELD_INTERLACED_BT:
iowrite32(top_offset / 2, priv->base + VNSLPRC_REG);
iowrite32((top_offset + cam->height) / 2 - 1,
iowrite32((top_offset + cam_subrect->height) / 2 - 1,
priv->base + VNELPRC_REG);
break;
default:
iowrite32(top_offset, priv->base + VNSLPRC_REG);
iowrite32(top_offset + cam->height - 1,
iowrite32(top_offset + cam_subrect->height - 1,
priv->base + VNELPRC_REG);
break;
}
/* Set scaling coefficient */
value = 0;
if (cam_subrect->height != cam->out_height)
value = (4096 * cam_subrect->height) / cam->out_height;
dev_dbg(icd->parent, "YS Value: %x\n", value);
iowrite32(value, priv->base + VNYS_REG);
value = 0;
if (cam_subrect->width != cam->out_width)
value = (4096 * cam_subrect->width) / cam->out_width;
/* Horizontal upscaling is up to double size */
if (0 < value && value < 2048)
value = 2048;
dev_dbg(icd->parent, "XS Value: %x\n", value);
iowrite32(value, priv->base + VNXS_REG);
/* Horizontal upscaling is carried out by scaling down from double size */
if (value < 4096)
value *= 2;
set_coeff(priv, value);
/* Set Start/End Pixel/Line Post-Clip */
iowrite32(0, priv->base + VNSPPOC_REG);
iowrite32(0, priv->base + VNSLPOC_REG);
iowrite32((cam_subrect->width - 1) << dsize, priv->base + VNEPPOC_REG);
iowrite32((cam->out_width - 1) << dsize, priv->base + VNEPPOC_REG);
switch (priv->field) {
case V4L2_FIELD_INTERLACED:
case V4L2_FIELD_INTERLACED_TB:
case V4L2_FIELD_INTERLACED_BT:
iowrite32(cam_subrect->height / 2 - 1,
iowrite32(cam->out_height / 2 - 1,
priv->base + VNELPOC_REG);
break;
default:
iowrite32(cam_subrect->height - 1, priv->base + VNELPOC_REG);
iowrite32(cam->out_height - 1, priv->base + VNELPOC_REG);
break;
}
iowrite32(ALIGN(cam->width, 0x10), priv->base + VNIS_REG);
iowrite32(ALIGN(cam->out_width, 0x10), priv->base + VNIS_REG);
return 0;
}
......@@ -1007,6 +1431,8 @@ static int rcar_vin_get_formats(struct soc_camera_device *icd, unsigned int idx,
cam->subrect = rect;
cam->width = mf.width;
cam->height = mf.height;
cam->out_width = mf.width;
cam->out_height = mf.height;
icd->host_priv = cam;
} else {
......@@ -1267,6 +1693,9 @@ static int rcar_vin_set_fmt(struct soc_camera_device *icd,
dev_dbg(dev, "W: %u : %u, H: %u : %u\n",
vin_sub_width, pix->width, vin_sub_height, pix->height);
cam->out_width = pix->width;
cam->out_height = pix->height;
icd->current_fmt = xlate;
priv->field = field;
......@@ -1318,8 +1747,12 @@ static int rcar_vin_try_fmt(struct soc_camera_device *icd,
if (ret < 0)
return ret;
pix->width = mf.width;
pix->height = mf.height;
/* Adjust only if VIN cannot scale */
if (pix->width > mf.width * 2)
pix->width = mf.width * 2;
if (pix->height > mf.height * 3)
pix->height = mf.height * 3;
pix->field = mf.field;
pix->colorspace = mf.colorspace;
......
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