diff options
Diffstat (limited to 'u-boot/board/gdsys/common/osd.c')
| -rw-r--r-- | u-boot/board/gdsys/common/osd.c | 392 |
1 files changed, 392 insertions, 0 deletions
diff --git a/u-boot/board/gdsys/common/osd.c b/u-boot/board/gdsys/common/osd.c new file mode 100644 index 0000000..4d8c046 --- /dev/null +++ b/u-boot/board/gdsys/common/osd.c @@ -0,0 +1,392 @@ +/* + * (C) Copyright 2010 + * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <i2c.h> +#include <asm/io.h> + +#include <gdsys_fpga.h> + +#define CH7301_I2C_ADDR 0x75 + +#define ICS8N3QV01_I2C_ADDR 0x6E +#define ICS8N3QV01_FREF 114285 + +#define SIL1178_MASTER_I2C_ADDRESS 0x38 +#define SIL1178_SLAVE_I2C_ADDRESS 0x39 + +#define PIXCLK_640_480_60 25180000 + +#define BASE_WIDTH 32 +#define BASE_HEIGHT 16 +#define BUFSIZE (BASE_WIDTH * BASE_HEIGHT) + +enum { + CH7301_CM = 0x1c, /* Clock Mode Register */ + CH7301_IC = 0x1d, /* Input Clock Register */ + CH7301_GPIO = 0x1e, /* GPIO Control Register */ + CH7301_IDF = 0x1f, /* Input Data Format Register */ + CH7301_CD = 0x20, /* Connection Detect Register */ + CH7301_DC = 0x21, /* DAC Control Register */ + CH7301_HPD = 0x23, /* Hot Plug Detection Register */ + CH7301_TCTL = 0x31, /* DVI Control Input Register */ + CH7301_TPCP = 0x33, /* DVI PLL Charge Pump Ctrl Register */ + CH7301_TPD = 0x34, /* DVI PLL Divide Register */ + CH7301_TPVT = 0x35, /* DVI PLL Supply Control Register */ + CH7301_TPF = 0x36, /* DVI PLL Filter Register */ + CH7301_TCT = 0x37, /* DVI Clock Test Register */ + CH7301_TSTP = 0x48, /* Test Pattern Register */ + CH7301_PM = 0x49, /* Power Management register */ + CH7301_VID = 0x4a, /* Version ID Register */ + CH7301_DID = 0x4b, /* Device ID Register */ + CH7301_DSP = 0x56, /* DVI Sync polarity Register */ +}; + +#if defined(CONFIG_SYS_ICS8N3QV01) || defined(CONFIG_SYS_SIL1178) +static void fpga_iic_write(unsigned screen, u8 slave, u8 reg, u8 data) +{ + ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(screen); + ihs_i2c_t *i2c = &fpga->i2c; + + while (in_le16(&fpga->extended_interrupt) & (1 << 12)) + ; + out_le16(&i2c->write_mailbox_ext, reg | (data << 8)); + out_le16(&i2c->write_mailbox, 0xc400 | (slave << 1)); +} + +static u8 fpga_iic_read(unsigned screen, u8 slave, u8 reg) +{ + ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(screen); + ihs_i2c_t *i2c = &fpga->i2c; + unsigned int ctr = 0; + + while (in_le16(&fpga->extended_interrupt) & (1 << 12)) + ; + out_le16(&fpga->extended_interrupt, 1 << 14); + out_le16(&i2c->write_mailbox_ext, reg); + out_le16(&i2c->write_mailbox, 0xc000 | (slave << 1)); + while (!(in_le16(&fpga->extended_interrupt) & (1 << 14))) { + udelay(100000); + if (ctr++ > 5) { + printf("iic receive timeout\n"); + break; + } + } + return in_le16(&i2c->read_mailbox_ext) >> 8; +} +#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) +{ + ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(screen); + 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; + } + + out_le16(&fpga->mpc3w_control, (bitval << 9) | m); +} +#endif + +#ifdef CONFIG_SYS_ICS8N3QV01 +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 = 2550000000U / 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 screen, unsigned int fout) +{ + unsigned int n; + unsigned int mint; + unsigned int mfrac; + u8 reg0, reg4, reg8, reg12, reg18, reg20; + + ics8n3qv01_calc_parameters(fout, &mint, &mfrac, &n); + + reg0 = fpga_iic_read(screen, ICS8N3QV01_I2C_ADDR, 0) & 0xc0; + reg0 |= (mint & 0x1f) << 1; + reg0 |= (mfrac >> 17) & 0x01; + fpga_iic_write(screen, ICS8N3QV01_I2C_ADDR, 0, reg0); + + reg4 = mfrac >> 9; + fpga_iic_write(screen, ICS8N3QV01_I2C_ADDR, 4, reg4); + + reg8 = mfrac >> 1; + fpga_iic_write(screen, ICS8N3QV01_I2C_ADDR, 8, reg8); + + reg12 = mfrac << 7; + reg12 |= n & 0x7f; + fpga_iic_write(screen, ICS8N3QV01_I2C_ADDR, 12, reg12); + + reg18 = fpga_iic_read(screen, ICS8N3QV01_I2C_ADDR, 18) & 0x03; + reg18 |= 0x20; + fpga_iic_write(screen, ICS8N3QV01_I2C_ADDR, 18, reg18); + + reg20 = fpga_iic_read(screen, ICS8N3QV01_I2C_ADDR, 20) & 0x1f; + reg20 |= mint & (1 << 5); + fpga_iic_write(screen, ICS8N3QV01_I2C_ADDR, 20, reg20); +} +#endif + +static int osd_write_videomem(unsigned screen, unsigned offset, + u16 *data, size_t charcount) +{ + ihs_fpga_t *fpga = + (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(screen); + unsigned int k; + + for (k = 0; k < charcount; ++k) { + if (offset + k >= BUFSIZE) + return -1; + out_le16(&fpga->videomem + offset + k, data[k]); + } + + return charcount; +} + +static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + unsigned screen; + + for (screen = 0; screen < CONFIG_SYS_OSD_SCREENS; ++screen) { + unsigned x; + unsigned y; + unsigned charcount; + unsigned len; + u8 color; + unsigned int k; + u16 buf[BUFSIZE]; + char *text; + int res; + + if (argc < 5) { + cmd_usage(cmdtp); + return 1; + } + + 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; + } + + return 0; +} + +int osd_probe(unsigned screen) +{ + ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(screen); + ihs_osd_t *osd = &fpga->osd; + u16 version = in_le16(&osd->version); + u16 features = in_le16(&osd->features); + unsigned width; + unsigned height; + u8 value; + + width = ((features & 0x3f00) >> 8) + 1; + height = (features & 0x001f) + 1; + + printf("OSD%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n", + screen, version/100, version%100, width, height); + +#ifdef CONFIG_SYS_CH7301 + value = i2c_reg_read(CH7301_I2C_ADDR, CH7301_DID); + if (value != 0x17) { + printf(" Probing CH7301 failed, DID %02x\n", value); + return -1; + } + i2c_reg_write(CH7301_I2C_ADDR, CH7301_TPCP, 0x08); + i2c_reg_write(CH7301_I2C_ADDR, CH7301_TPD, 0x16); + i2c_reg_write(CH7301_I2C_ADDR, CH7301_TPF, 0x60); + i2c_reg_write(CH7301_I2C_ADDR, CH7301_DC, 0x09); + i2c_reg_write(CH7301_I2C_ADDR, CH7301_PM, 0xc0); +#endif + +#ifdef CONFIG_SYS_MPC92469AC + mpc92469ac_set(screen, PIXCLK_640_480_60); +#endif + +#ifdef CONFIG_SYS_ICS8N3QV01 + ics8n3qv01_set(screen, PIXCLK_640_480_60); +#endif + +#ifdef CONFIG_SYS_SIL1178 + value = fpga_iic_read(screen, SIL1178_SLAVE_I2C_ADDRESS, 0x02); + if (value != 0x06) { + printf(" Probing CH7301 SIL1178, DEV_IDL %02x\n", value); + return -1; + } + /* magic initialization sequence adapted from datasheet */ + fpga_iic_write(screen, SIL1178_SLAVE_I2C_ADDRESS, 0x08, 0x36); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x0f, 0x44); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x0f, 0x4c); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x0e, 0x10); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x0a, 0x80); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x09, 0x30); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x0c, 0x89); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x0d, 0x60); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x36); + fpga_iic_write(screen, SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x37); +#endif + + out_le16(&fpga->videocontrol, 0x0002); + out_le16(&osd->control, 0x0049); + + out_le16(&osd->xy_size, ((32 - 1) << 8) | (16 - 1)); + + return 0; +} + +int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + unsigned screen; + + for (screen = 0; screen < CONFIG_SYS_OSD_SCREENS; ++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 ((argc < 4) || (strlen(argv[3]) % 4)) { + cmd_usage(cmdtp); + return 1; + } + + 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); + } + } + + 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" +); |