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u-boot-brain/board/gdsys/common/osd.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

500 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010
* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
*/
#include <common.h>
#include <i2c.h>
#include <malloc.h>
#include "ch7301.h"
#include "dp501.h"
#include <gdsys_fpga.h>
#define ICS8N3QV01_I2C_ADDR 0x6E
#define ICS8N3QV01_FREF 114285000
#define ICS8N3QV01_FREF_LL 114285000LL
#define ICS8N3QV01_F_DEFAULT_0 156250000LL
#define ICS8N3QV01_F_DEFAULT_1 125000000LL
#define ICS8N3QV01_F_DEFAULT_2 100000000LL
#define ICS8N3QV01_F_DEFAULT_3 25175000LL
#define SIL1178_MASTER_I2C_ADDRESS 0x38
#define SIL1178_SLAVE_I2C_ADDRESS 0x39
#define PIXCLK_640_480_60 25180000
#define MAX_X_CHARS 53
#define MAX_Y_CHARS 26
#ifdef CONFIG_SYS_OSD_DH
#define MAX_OSD_SCREEN 8
#define OSD_DH_BASE 4
#else
#define MAX_OSD_SCREEN 4
#endif
#ifdef CONFIG_SYS_OSD_DH
#define OSD_SET_REG(screen, fld, val) \
do { \
if (screen >= OSD_DH_BASE) \
FPGA_SET_REG(screen - OSD_DH_BASE, osd1.fld, val); \
else \
FPGA_SET_REG(screen, osd0.fld, val); \
} while (0)
#else
#define OSD_SET_REG(screen, fld, val) \
FPGA_SET_REG(screen, osd0.fld, val)
#endif
#ifdef CONFIG_SYS_OSD_DH
#define OSD_GET_REG(screen, fld, val) \
do { \
if (screen >= OSD_DH_BASE) \
FPGA_GET_REG(screen - OSD_DH_BASE, osd1.fld, val); \
else \
FPGA_GET_REG(screen, osd0.fld, val); \
} while (0)
#else
#define OSD_GET_REG(screen, fld, val) \
FPGA_GET_REG(screen, osd0.fld, val)
#endif
unsigned int base_width;
unsigned int base_height;
size_t bufsize;
u16 *buf;
unsigned int osd_screen_mask = 0;
#ifdef CONFIG_SYS_ICS8N3QV01_I2C
int ics8n3qv01_i2c[] = CONFIG_SYS_ICS8N3QV01_I2C;
#endif
#ifdef CONFIG_SYS_SIL1178_I2C
int sil1178_i2c[] = CONFIG_SYS_SIL1178_I2C;
#endif
#ifdef CONFIG_SYS_MPC92469AC
static void mpc92469ac_calc_parameters(unsigned int fout,
unsigned int *post_div, unsigned int *feedback_div)
{
unsigned int n = *post_div;
unsigned int m = *feedback_div;
unsigned int a;
unsigned int b = 14745600 / 16;
if (fout < 50169600)
n = 8;
else if (fout < 100339199)
n = 4;
else if (fout < 200678399)
n = 2;
else
n = 1;
a = fout * n + (b / 2); /* add b/2 for proper rounding */
m = a / b;
*post_div = n;
*feedback_div = m;
}
static void mpc92469ac_set(unsigned screen, unsigned int fout)
{
unsigned int n;
unsigned int m;
unsigned int bitval = 0;
mpc92469ac_calc_parameters(fout, &n, &m);
switch (n) {
case 1:
bitval = 0x00;
break;
case 2:
bitval = 0x01;
break;
case 4:
bitval = 0x02;
break;
case 8:
bitval = 0x03;
break;
}
FPGA_SET_REG(screen, mpc3w_control, (bitval << 9) | m);
}
#endif
#ifdef CONFIG_SYS_ICS8N3QV01_I2C
static unsigned int ics8n3qv01_get_fout_calc(unsigned index)
{
unsigned long long n;
unsigned long long mint;
unsigned long long mfrac;
u8 reg_a, reg_b, reg_c, reg_d, reg_f;
unsigned long long fout_calc;
if (index > 3)
return 0;
reg_a = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 0 + index);
reg_b = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 4 + index);
reg_c = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 8 + index);
reg_d = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 12 + index);
reg_f = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 20 + index);
mint = ((reg_a >> 1) & 0x1f) | (reg_f & 0x20);
mfrac = ((reg_a & 0x01) << 17) | (reg_b << 9) | (reg_c << 1)
| (reg_d >> 7);
n = reg_d & 0x7f;
fout_calc = (mint * ICS8N3QV01_FREF_LL
+ mfrac * ICS8N3QV01_FREF_LL / 262144LL
+ ICS8N3QV01_FREF_LL / 524288LL
+ n / 2)
/ n
* 1000000
/ (1000000 - 100);
return fout_calc;
}
static void ics8n3qv01_calc_parameters(unsigned int fout,
unsigned int *_mint, unsigned int *_mfrac,
unsigned int *_n)
{
unsigned int n;
unsigned int foutiic;
unsigned int fvcoiic;
unsigned int mint;
unsigned long long mfrac;
n = (2215000000U + fout / 2) / fout;
if ((n & 1) && (n > 5))
n -= 1;
foutiic = fout - (fout / 10000);
fvcoiic = foutiic * n;
mint = fvcoiic / 114285000;
if ((mint < 17) || (mint > 63))
printf("ics8n3qv01_calc_parameters: cannot determine mint\n");
mfrac = ((unsigned long long)fvcoiic % 114285000LL) * 262144LL
/ 114285000LL;
*_mint = mint;
*_mfrac = mfrac;
*_n = n;
}
static void ics8n3qv01_set(unsigned int fout)
{
unsigned int n;
unsigned int mint;
unsigned int mfrac;
unsigned int fout_calc;
unsigned long long fout_prog;
long long off_ppm;
u8 reg0, reg4, reg8, reg12, reg18, reg20;
fout_calc = ics8n3qv01_get_fout_calc(1);
off_ppm = (fout_calc - ICS8N3QV01_F_DEFAULT_1) * 1000000
/ ICS8N3QV01_F_DEFAULT_1;
printf(" PLL is off by %lld ppm\n", off_ppm);
fout_prog = (unsigned long long)fout * (unsigned long long)fout_calc
/ ICS8N3QV01_F_DEFAULT_1;
ics8n3qv01_calc_parameters(fout_prog, &mint, &mfrac, &n);
reg0 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 0) & 0xc0;
reg0 |= (mint & 0x1f) << 1;
reg0 |= (mfrac >> 17) & 0x01;
i2c_reg_write(ICS8N3QV01_I2C_ADDR, 0, reg0);
reg4 = mfrac >> 9;
i2c_reg_write(ICS8N3QV01_I2C_ADDR, 4, reg4);
reg8 = mfrac >> 1;
i2c_reg_write(ICS8N3QV01_I2C_ADDR, 8, reg8);
reg12 = mfrac << 7;
reg12 |= n & 0x7f;
i2c_reg_write(ICS8N3QV01_I2C_ADDR, 12, reg12);
reg18 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 18) & 0x03;
reg18 |= 0x20;
i2c_reg_write(ICS8N3QV01_I2C_ADDR, 18, reg18);
reg20 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 20) & 0x1f;
reg20 |= mint & (1 << 5);
i2c_reg_write(ICS8N3QV01_I2C_ADDR, 20, reg20);
}
#endif
static int osd_write_videomem(unsigned screen, unsigned offset,
u16 *data, size_t charcount)
{
unsigned int k;
for (k = 0; k < charcount; ++k) {
if (offset + k >= bufsize)
return -1;
#ifdef CONFIG_SYS_OSD_DH
if (screen >= OSD_DH_BASE)
FPGA_SET_REG(screen - OSD_DH_BASE,
videomem1[offset + k], data[k]);
else
FPGA_SET_REG(screen, videomem0[offset + k], data[k]);
#else
FPGA_SET_REG(screen, videomem0[offset + k], data[k]);
#endif
}
return charcount;
}
static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned screen;
if (argc < 5) {
cmd_usage(cmdtp);
return 1;
}
for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) {
unsigned x;
unsigned y;
unsigned charcount;
unsigned len;
u8 color;
unsigned int k;
char *text;
int res;
if (!(osd_screen_mask & (1 << screen)))
continue;
x = simple_strtoul(argv[1], NULL, 16);
y = simple_strtoul(argv[2], NULL, 16);
color = simple_strtoul(argv[3], NULL, 16);
text = argv[4];
charcount = strlen(text);
len = (charcount > bufsize) ? bufsize : charcount;
for (k = 0; k < len; ++k)
buf[k] = (text[k] << 8) | color;
res = osd_write_videomem(screen, y * base_width + x, buf, len);
if (res < 0)
return res;
OSD_SET_REG(screen, control, 0x0049);
}
return 0;
}
int osd_probe(unsigned screen)
{
u16 version;
u16 features;
int old_bus = i2c_get_bus_num();
bool pixclock_present = false;
bool output_driver_present = false;
OSD_GET_REG(0, version, &version);
OSD_GET_REG(0, features, &features);
base_width = ((features & 0x3f00) >> 8) + 1;
base_height = (features & 0x001f) + 1;
bufsize = base_width * base_height;
buf = malloc(sizeof(u16) * bufsize);
if (!buf)
return -1;
#ifdef CONFIG_SYS_OSD_DH
printf("OSD%d-%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n",
(screen >= OSD_DH_BASE) ? (screen - OSD_DH_BASE) : screen,
(screen > 3) ? 1 : 0, version/100, version%100, base_width,
base_height);
#else
printf("OSD%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n",
screen, version/100, version%100, base_width, base_height);
#endif
/* setup pixclock */
#ifdef CONFIG_SYS_MPC92469AC
pixclock_present = true;
mpc92469ac_set(screen, PIXCLK_640_480_60);
#endif
#ifdef CONFIG_SYS_ICS8N3QV01_I2C
i2c_set_bus_num(ics8n3qv01_i2c[screen]);
if (!i2c_probe(ICS8N3QV01_I2C_ADDR)) {
ics8n3qv01_set(PIXCLK_640_480_60);
pixclock_present = true;
}
#endif
if (!pixclock_present)
printf(" no pixelclock found\n");
/* setup output driver */
#ifdef CONFIG_SYS_CH7301_I2C
if (!ch7301_probe(screen, true))
output_driver_present = true;
#endif
#ifdef CONFIG_SYS_SIL1178_I2C
i2c_set_bus_num(sil1178_i2c[screen]);
if (!i2c_probe(SIL1178_SLAVE_I2C_ADDRESS)) {
if (i2c_reg_read(SIL1178_SLAVE_I2C_ADDRESS, 0x02) == 0x06) {
/*
* magic initialization sequence,
* adapted from datasheet
*/
i2c_reg_write(SIL1178_SLAVE_I2C_ADDRESS, 0x08, 0x36);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0f, 0x44);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0f, 0x4c);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0e, 0x10);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0a, 0x80);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x09, 0x30);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0c, 0x89);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0d, 0x60);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x36);
i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x37);
output_driver_present = true;
}
}
#endif
#ifdef CONFIG_SYS_DP501_I2C
if (!dp501_probe(screen, true))
output_driver_present = true;
#endif
if (!output_driver_present)
printf(" no output driver found\n");
OSD_SET_REG(screen, xy_size, ((32 - 1) << 8) | (16 - 1));
OSD_SET_REG(screen, x_pos, 0x007f);
OSD_SET_REG(screen, y_pos, 0x005f);
if (pixclock_present && output_driver_present)
osd_screen_mask |= 1 << screen;
i2c_set_bus_num(old_bus);
return 0;
}
int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned screen;
if ((argc < 4) || (strlen(argv[3]) % 4)) {
cmd_usage(cmdtp);
return 1;
}
for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) {
unsigned x;
unsigned y;
unsigned k;
u16 buffer[base_width];
char *rp;
u16 *wp = buffer;
unsigned count = (argc > 4) ?
simple_strtoul(argv[4], NULL, 16) : 1;
if (!(osd_screen_mask & (1 << screen)))
continue;
x = simple_strtoul(argv[1], NULL, 16);
y = simple_strtoul(argv[2], NULL, 16);
rp = argv[3];
while (*rp) {
char substr[5];
memcpy(substr, rp, 4);
substr[4] = 0;
*wp = simple_strtoul(substr, NULL, 16);
rp += 4;
wp++;
if (wp - buffer > base_width)
break;
}
for (k = 0; k < count; ++k) {
unsigned offset =
y * base_width + x + k * (wp - buffer);
osd_write_videomem(screen, offset, buffer,
wp - buffer);
}
OSD_SET_REG(screen, control, 0x0049);
}
return 0;
}
int osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned screen;
unsigned x;
unsigned y;
if (argc < 3) {
cmd_usage(cmdtp);
return 1;
}
x = simple_strtoul(argv[1], NULL, 16);
y = simple_strtoul(argv[2], NULL, 16);
if (!x || (x > 64) || (x > MAX_X_CHARS) ||
!y || (y > 32) || (y > MAX_Y_CHARS)) {
cmd_usage(cmdtp);
return 1;
}
for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) {
if (!(osd_screen_mask & (1 << screen)))
continue;
OSD_SET_REG(screen, xy_size, ((x - 1) << 8) | (y - 1));
OSD_SET_REG(screen, x_pos, 32767 * (640 - 12 * x) / 65535);
OSD_SET_REG(screen, y_pos, 32767 * (480 - 18 * y) / 65535);
}
return 0;
}
U_BOOT_CMD(
osdw, 5, 0, osd_write,
"write 16-bit hex encoded buffer to osd memory",
"pos_x pos_y buffer count\n"
);
U_BOOT_CMD(
osdp, 5, 0, osd_print,
"write ASCII buffer to osd memory",
"pos_x pos_y color text\n"
);
U_BOOT_CMD(
osdsize, 3, 0, osd_size,
"set OSD XY size in characters",
"size_x(max. " __stringify(MAX_X_CHARS)
") size_y(max. " __stringify(MAX_Y_CHARS) ")\n"
);
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