--- /dev/null
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <malloc.h>
+
+#include <gdsys_fpga.h>
+
+#define CH7301_I2C_ADDR 0x75
+
+#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
+
+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 */
+};
+
+unsigned int base_width;
+unsigned int base_height;
+size_t bufsize;
+u16 *buf;
+
+unsigned int max_osd_screen = CONFIG_SYS_OSD_SCREENS - 1;
+
+#ifdef CONFIG_SYS_CH7301
+int ch7301_i2c[] = CONFIG_SYS_CH7301_I2C;
+#endif
+
+#if defined(CONFIG_SYS_ICS8N3QV01) || defined(CONFIG_SYS_SIL1178)
+static void fpga_iic_write(unsigned screen, u8 slave, u8 reg, u8 data)
+{
+ u16 val;
+
+ do {
+ FPGA_GET_REG(screen, extended_interrupt, &val);
+ } while (val & (1 << 12));
+
+ FPGA_SET_REG(screen, i2c.write_mailbox_ext, reg | (data << 8));
+ FPGA_SET_REG(screen, i2c.write_mailbox, 0xc400 | (slave << 1));
+}
+
+static u8 fpga_iic_read(unsigned screen, u8 slave, u8 reg)
+{
+ unsigned int ctr = 0;
+ u16 val;
+
+ do {
+ FPGA_GET_REG(screen, extended_interrupt, &val);
+ } while (val & (1 << 12));
+
+ FPGA_SET_REG(screen, extended_interrupt, 1 << 14);
+ FPGA_SET_REG(screen, i2c.write_mailbox_ext, reg);
+ FPGA_SET_REG(screen, i2c.write_mailbox, 0xc000 | (slave << 1));
+
+ FPGA_GET_REG(screen, extended_interrupt, &val);
+ while (!(val & (1 << 14))) {
+ udelay(100000);
+ if (ctr++ > 5) {
+ printf("iic receive timeout\n");
+ break;
+ }
+ FPGA_GET_REG(screen, extended_interrupt, &val);
+ }
+
+ FPGA_GET_REG(screen, i2c.read_mailbox_ext, &val);
+ return val >> 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)
+{
+ 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
+
+static unsigned int ics8n3qv01_get_fout_calc(unsigned screen, 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 = fpga_iic_read(screen, ICS8N3QV01_I2C_ADDR, 0 + index);
+ reg_b = fpga_iic_read(screen, ICS8N3QV01_I2C_ADDR, 4 + index);
+ reg_c = fpga_iic_read(screen, ICS8N3QV01_I2C_ADDR, 8 + index);
+ reg_d = fpga_iic_read(screen, ICS8N3QV01_I2C_ADDR, 12 + index);
+ reg_f = fpga_iic_read(screen, 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 screen, 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(screen, 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 = 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)
+{
+ unsigned int k;
+
+ for (k = 0; k < charcount; ++k) {
+ if (offset + k >= bufsize)
+ return -1;
+ FPGA_SET_REG(screen, 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 <= max_osd_screen; ++screen) {
+ unsigned x;
+ unsigned y;
+ unsigned charcount;
+ unsigned len;
+ u8 color;
+ unsigned int k;
+ 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)
+{
+ u16 version;
+ u16 features;
+ u8 value;
+#ifdef CONFIG_SYS_CH7301
+ int old_bus = i2c_get_bus_num();
+#endif
+
+ FPGA_GET_REG(0, osd.version, &version);
+ FPGA_GET_REG(0, osd.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;
+
+ printf("OSD%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n",
+ screen, version/100, version%100, base_width, base_height);
+
+#ifdef CONFIG_SYS_CH7301
+ i2c_set_bus_num(ch7301_i2c[screen]);
+ value = i2c_reg_read(CH7301_I2C_ADDR, CH7301_DID);
+ if (value != 0x17) {
+ printf(" Probing CH7301 failed, DID %02x\n", value);
+ i2c_set_bus_num(old_bus);
+ 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);
+ i2c_set_bus_num(old_bus);
+#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
+
+ FPGA_SET_REG(screen, videocontrol, 0x0002);
+ FPGA_SET_REG(screen, osd.control, 0x0049);
+
+ FPGA_SET_REG(screen, osd.xy_size, ((32 - 1) << 8) | (16 - 1));
+ FPGA_SET_REG(screen, osd.x_pos, 0x007f);
+ FPGA_SET_REG(screen, osd.y_pos, 0x005f);
+
+ if (screen > max_osd_screen)
+ max_osd_screen = screen;
+
+ return 0;
+}
+
+int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ unsigned screen;
+
+ 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 ((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"
+);
Code Review / kvmfornfv.git / blobdiff