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Subject[PATCH] solo6x10: Rework tw2864 initialisation tables
Date
This removes the flipping of bits to get from NTSC to PAL and instead writes out complete 
NTSC or PAL tables at once.

Extracted from an upstream commit by Ben Collins:
https://github.com/bluecherrydvr/solo6x10/commit/0ba38613f36a271249e0d0f42d53ba5588e2ed5e

Signed-off-by: Tony Vroon <tony@linx.net>

diff --git a/drivers/staging/solo6x10/tw28.c b/drivers/staging/solo6x10/tw28.c
index db56b42..6f395f3 100644
--- a/drivers/staging/solo6x10/tw28.c
+++ b/drivers/staging/solo6x10/tw28.c
@@ -21,9 +21,7 @@
#include "solo6x10.h"
#include "tw28.h"

-/* XXX: Some of these values are masked into an 8-bit regs, and shifted
- * around for other 8-bit regs. What are the magic bits in these values? */
-#define DEFAULT_HDELAY_NTSC (32 - 4)
+#define DEFAULT_HDELAY_NTSC (32 - 8)
#define DEFAULT_HACTIVE_NTSC (720 + 16)
#define DEFAULT_VDELAY_NTSC (7 - 2)
#define DEFAULT_VACTIVE_NTSC (240 + 4)
@@ -33,15 +31,16 @@
#define DEFAULT_VDELAY_PAL (6)
#define DEFAULT_VACTIVE_PAL (312-DEFAULT_VDELAY_PAL)

-static u8 tbl_tw2864_template[] = {
- 0x00, 0x00, 0x80, 0x10, 0x80, 0x80, 0x00, 0x02, /* 0x00 */
- 0x12, 0xf5, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
- 0x00, 0x00, 0x80, 0x10, 0x80, 0x80, 0x00, 0x02, /* 0x10 */
- 0x12, 0xf5, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
- 0x00, 0x00, 0x80, 0x10, 0x80, 0x80, 0x00, 0x02, /* 0x20 */
- 0x12, 0xf5, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
- 0x00, 0x00, 0x80, 0x10, 0x80, 0x80, 0x00, 0x02, /* 0x30 */
- 0x12, 0xf5, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
+
+static const u8 tbl_tw2864_ntsc_template[] = {
+ 0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x00 */
+ 0x12, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x00, 0x7f,
+ 0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x10 */
+ 0x12, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x00, 0x7f,
+ 0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x20 */
+ 0x12, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x00, 0x7f,
+ 0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x30 */
+ 0x12, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x00, 0x7f,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50 */
@@ -61,14 +60,49 @@ static u8 tbl_tw2864_template[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 */
0x00, 0x00, 0x55, 0x00, 0xb1, 0xe4, 0x40, 0x00,
0x77, 0x77, 0x01, 0x13, 0x57, 0x9b, 0xdf, 0x20, /* 0xd0 */
- 0x64, 0xa8, 0xec, 0xd1, 0x0f, 0x11, 0x11, 0x81,
- 0x10, 0xe0, 0xbb, 0xbb, 0x00, 0x11, 0x00, 0x00, /* 0xe0 */
+ 0x64, 0xa8, 0xec, 0xc1, 0x0f, 0x11, 0x11, 0x81,
+ 0x00, 0xe0, 0xbb, 0xbb, 0x00, 0x11, 0x00, 0x00, /* 0xe0 */
0x11, 0x00, 0x00, 0x11, 0x00, 0x00, 0x11, 0x00,
0x83, 0xb5, 0x09, 0x78, 0x85, 0x00, 0x01, 0x20, /* 0xf0 */
0x64, 0x11, 0x40, 0xaf, 0xff, 0x00, 0x00, 0x00,
};

-static u8 tbl_tw2865_ntsc_template[] = {
+static const u8 tbl_tw2864_pal_template[] = {
+ 0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x00 */
+ 0x18, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x01, 0x7f,
+ 0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x10 */
+ 0x18, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x01, 0x7f,
+ 0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x20 */
+ 0x18, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x01, 0x7f,
+ 0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x30 */
+ 0x18, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x01, 0x7f,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA3, 0x00,
+ 0x00, 0x02, 0x00, 0xcc, 0x00, 0x80, 0x44, 0x50, /* 0x80 */
+ 0x22, 0x01, 0xd8, 0xbc, 0xb8, 0x44, 0x38, 0x00,
+ 0x00, 0x78, 0x72, 0x3e, 0x14, 0xa5, 0xe4, 0x05, /* 0x90 */
+ 0x00, 0x28, 0x44, 0x44, 0xa0, 0x90, 0x5a, 0x01,
+ 0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x1a, 0x1a, 0x1a, /* 0xa0 */
+ 0x00, 0x00, 0x00, 0xf0, 0xf0, 0xf0, 0xf0, 0x44,
+ 0x44, 0x0a, 0x00, 0xff, 0xef, 0xef, 0xef, 0xef, /* 0xb0 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 */
+ 0x00, 0x00, 0x55, 0x00, 0xb1, 0xe4, 0x40, 0x00,
+ 0x77, 0x77, 0x01, 0x13, 0x57, 0x9b, 0xdf, 0x20, /* 0xd0 */
+ 0x64, 0xa8, 0xec, 0xc1, 0x0f, 0x11, 0x11, 0x81,
+ 0x00, 0xe0, 0xbb, 0xbb, 0x00, 0x11, 0x00, 0x00, /* 0xe0 */
+ 0x11, 0x00, 0x00, 0x11, 0x00, 0x00, 0x11, 0x00,
+ 0x83, 0xb5, 0x09, 0x00, 0xa0, 0x00, 0x01, 0x20, /* 0xf0 */
+ 0x64, 0x11, 0x40, 0xaf, 0xff, 0x00, 0x00, 0x00,
+};
+
+static const u8 tbl_tw2865_ntsc_template[] = {
0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x00 */
0x12, 0xff, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x10 */
@@ -103,7 +137,7 @@ static u8 tbl_tw2865_ntsc_template[] = {
0x64, 0x51, 0x40, 0xaf, 0xFF, 0xF0, 0x00, 0xC0,
};

-static u8 tbl_tw2865_pal_template[] = {
+static const u8 tbl_tw2865_pal_template[] = {
0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x00 */
0x11, 0xff, 0x01, 0xc3, 0x00, 0x00, 0x01, 0x7f,
0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x10 */
@@ -236,11 +270,15 @@ static int tw2865_setup(struct solo_dev *solo_dev, u8 dev_addr)

static int tw2864_setup(struct solo_dev *solo_dev, u8 dev_addr)
{
- u8 tbl_tw2864_common[sizeof(tbl_tw2864_template)];
+ u8 tbl_tw2864_common[256];
int i;

- memcpy(tbl_tw2864_common, tbl_tw2864_template,
- sizeof(tbl_tw2864_common));
+ if (solo_dev->video_type == SOLO_VO_FMT_TYPE_PAL)
+ memcpy(tbl_tw2864_common, tbl_tw2864_pal_template,
+ sizeof(tbl_tw2864_common));
+ else
+ memcpy(tbl_tw2864_common, tbl_tw2864_ntsc_template,
+ sizeof(tbl_tw2864_common));

if (solo_dev->tw2865 == 0) {
/* IRQ Mode */
@@ -285,20 +323,6 @@ static int tw2864_setup(struct solo_dev *solo_dev, u8 dev_addr)
}
}

- /* NTSC or PAL */
- if (solo_dev->video_type == SOLO_VO_FMT_TYPE_PAL) {
- for (i = 0; i < 4; i++) {
- tbl_tw2864_common[0x07 | (i << 4)] |= 0x10;
- tbl_tw2864_common[0x08 | (i << 4)] |= 0x06;
- tbl_tw2864_common[0x0a | (i << 4)] |= 0x08;
- tbl_tw2864_common[0x0b | (i << 4)] |= 0x13;
- tbl_tw2864_common[0x0e | (i << 4)] |= 0x01;
- }
- tbl_tw2864_common[0x9d] = 0x90;
- tbl_tw2864_common[0xf3] = 0x00;
- tbl_tw2864_common[0xf4] = 0xa0;
- }
-
for (i = 0; i < 0xff; i++) {
/* Skip read only registers */
if (i >= 0xb8 && i <= 0xc1)
@@ -307,9 +331,6 @@ static int tw2864_setup(struct solo_dev *solo_dev, u8 dev_addr)
(i & ~0x30) == 0x0c ||
(i & ~0x30) == 0x0d)
continue;
- if (i == 0x74 || i == 0x77 || i == 0x78 ||
- i == 0x79 || i == 0x7a)
- continue;
if (i == 0xfd)
continue;


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