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u-boot/board/gdsys/common/osd.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010
* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
*/
#ifdef CONFIG_GDSYS_LEGACY_DRIVERS
#include <common.h>
#include <command.h>
#include <i2c.h>
#include <malloc.h>
#include <linux/stringify.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(struct cmd_tbl *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 = hextoul(argv[1], NULL);
y = hextoul(argv[2], NULL);
color = hextoul(argv[3], NULL);
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(struct cmd_tbl *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) ?
hextoul(argv[4], NULL) : 1;
if (!(osd_screen_mask & (1 << screen)))
continue;
x = hextoul(argv[1], NULL);
y = hextoul(argv[2], NULL);
rp = argv[3];
while (*rp) {
char substr[5];
memcpy(substr, rp, 4);
substr[4] = 0;
*wp = hextoul(substr, NULL);
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(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
unsigned screen;
unsigned x;
unsigned y;
if (argc < 3) {
cmd_usage(cmdtp);
return 1;
}
x = hextoul(argv[1], NULL);
y = hextoul(argv[2], NULL);
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"
);
#endif /* CONFIG_GDSYS_LEGACY_DRIVERS */