Add support for dual link osd hardware for gdsys 405ep.

Signed-off-by: Dirk Eibach <eib...@gdsys.de>
---
 board/gdsys/405ep/dlvision-10g.c |    3 +-
 board/gdsys/common/osd.c         |  303 ++++++++++++++++++++++++++++---------
 board/gdsys/common/osd.h         |    2 +-
 3 files changed, 232 insertions(+), 76 deletions(-)

diff --git a/board/gdsys/405ep/dlvision-10g.c b/board/gdsys/405ep/dlvision-10g.c
index c217dfe..740cceb 100644
--- a/board/gdsys/405ep/dlvision-10g.c
+++ b/board/gdsys/405ep/dlvision-10g.c
@@ -235,7 +235,8 @@ int last_stage_init(void)
        unsigned k;
 
        for (k = 0; k < CONFIG_SYS_OSD_SCREENS; ++k)
-               if (!get_fpga_state(k))
+               if (!get_fpga_state(k)
+                   || (get_fpga_state(k) == FPGA_STATE_DONE_FAILED))
                        osd_probe(k);
 
        return 0;
diff --git a/board/gdsys/common/osd.c b/board/gdsys/common/osd.c
index 239c870..9968dbf 100644
--- a/board/gdsys/common/osd.c
+++ b/board/gdsys/common/osd.c
@@ -29,6 +29,12 @@
 
 #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
@@ -38,12 +44,18 @@
 enum {
        REG_CONTROL = 0x0010,
        REG_MPC3W_CONTROL = 0x001a,
+       REG_EXT_INTERRUPT = 0x001c,
+       REG_EXT_INTERRUPT_ENABLE = 0x001e,
+       REG_IIC_WRITE_MAILBOX = 0x0030,
+       REG_IIC_WRITE_MAILBOX_EXT = 0x0032,
+       REG_IIC_READ_MAILBOX = 0x0034,
+       REG_IIC_READ_MAILBOX_EXT = 0x0036,
        REG_VIDEOCONTROL = 0x0042,
-       REG_OSDVERSION = 0x0100,
-       REG_OSDFEATURES = 0x0102,
-       REG_OSDCONTROL = 0x0104,
-       REG_XY_SIZE = 0x0106,
-       REG_VIDEOMEM = 0x0800,
+       REG_OSDVERSION = CONFIG_SYS_FPGA_OSD_BASE + 0x0000,
+       REG_OSDFEATURES = CONFIG_SYS_FPGA_OSD_BASE + 0x0002,
+       REG_OSDCONTROL = CONFIG_SYS_FPGA_OSD_BASE + 0x0004,
+       REG_XY_SIZE = CONFIG_SYS_FPGA_OSD_BASE + 0x0006,
+       REG_VIDEOMEM = CONFIG_SYS_FPGA_OSD_MEM,
 };
 
 enum {
@@ -67,6 +79,37 @@ enum {
        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)
+{
+       while (fpga_get_reg(screen, REG_EXT_INTERRUPT) & (1 << 12))
+               ;
+       fpga_set_reg(screen, REG_IIC_WRITE_MAILBOX_EXT,
+               reg | (data << 8));
+       fpga_set_reg(screen, REG_IIC_WRITE_MAILBOX,
+               0xc400 | (slave << 1));
+}
+
+static u8 fpga_iic_read(unsigned screen, u8 slave, u8 reg)
+{
+       unsigned int ctr = 0;
+       while (fpga_get_reg(screen, REG_EXT_INTERRUPT) & (1 << 12))
+               ;
+       fpga_set_reg(screen, REG_EXT_INTERRUPT, 1 << 14);
+       fpga_set_reg(screen, REG_IIC_WRITE_MAILBOX_EXT, reg);
+       fpga_set_reg(screen, REG_IIC_WRITE_MAILBOX, 0xc000 | (slave << 1));
+       while (!(fpga_get_reg(screen, REG_EXT_INTERRUPT) & (1 << 14))) {
+               udelay(100000);
+               if (ctr++ > 5) {
+                       printf("iic receive timeout\n");
+                       break;
+               }
+       }
+       return fpga_get_reg(screen, REG_IIC_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)
 {
@@ -92,7 +135,7 @@ static void mpc92469ac_calc_parameters(unsigned int fout,
        *feedback_div = m;
 }
 
-static void mpc92469ac_set(unsigned int fout)
+static void mpc92469ac_set(unsigned screen, unsigned int fout)
 {
        unsigned int n;
        unsigned int m;
@@ -114,17 +157,83 @@ static void mpc92469ac_set(unsigned int fout)
                break;
        }
 
-       fpga_set_reg(REG_MPC3W_CONTROL, (bitval << 9) | m);
+       fpga_set_reg(screen, REG_MPC3W_CONTROL, (bitval << 9) | m);
 }
+#endif
 
-static int osd_write_videomem(unsigned offset, u16 *data, size_t charcount)
+#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)
 {
        unsigned int k;
 
        for (k = 0; k < charcount; ++k) {
                if (offset + k >= BUFSIZE)
                        return -1;
-               fpga_set_reg(REG_VIDEOMEM + 2 * (offset + k), data[k]);
+               fpga_set_reg(screen, REG_VIDEOMEM + 2 * (offset + k), data[k]);
        }
 
        return charcount;
@@ -132,46 +241,57 @@ static int osd_write_videomem(unsigned offset, u16 *data, 
size_t charcount)
 
 static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-       unsigned x;
-       unsigned y;
-       unsigned charcount;
-       unsigned len;
-       u8 color;
-       unsigned int k;
-       u16 buf[BUFSIZE];
-       char *text;
-
-       if (argc < 5) {
-               return cmd_usage(cmdtp);
+       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;
        }
 
-       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;
-
-       return osd_write_videomem(y * BASE_WIDTH + x, buf, len);
+       return 0;
 }
 
-int osd_probe(void)
+int osd_probe(unsigned screen)
 {
-       u8 value;
-       u16 version = fpga_get_reg(REG_OSDVERSION);
-       u16 features = fpga_get_reg(REG_OSDFEATURES);
+       u16 version = fpga_get_reg(screen, REG_OSDVERSION);
+       u16 features = fpga_get_reg(screen, REG_OSDFEATURES);
        unsigned width;
        unsigned height;
+       u8 value;
 
        width = ((features & 0x3f00) >> 8) + 1;
        height = (features & 0x001f) + 1;
 
-       printf("OSD:   Digital-OSD version %01d.%02d, %d" "x%d characters\n",
-               version/100, version%100, width, height);
+       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);
@@ -182,51 +302,86 @@ int osd_probe(void)
        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
 
-       mpc92469ac_set(PIXCLK_640_480_60);
-       fpga_set_reg(REG_VIDEOCONTROL, 0x0002);
-       fpga_set_reg(REG_OSDCONTROL, 0x0049);
+#ifdef CONFIG_SYS_MPC92469AC
+       mpc92469ac_set(screen, PIXCLK_640_480_60);
+#endif
 
-       fpga_set_reg(REG_XY_SIZE, ((32 - 1) << 8) | (16 - 1));
+#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, REG_VIDEOCONTROL, 0x0002);
+       fpga_set_reg(screen, REG_OSDCONTROL, 0x0049);
+
+       fpga_set_reg(screen, REG_XY_SIZE, ((32 - 1) << 8) | (16 - 1));
 
        return 0;
 }
 
 int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-       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)) {
-               return cmd_usage(cmdtp);
-       }
-
-       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(offset, buffer, wp - buffer);
+       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;
diff --git a/board/gdsys/common/osd.h b/board/gdsys/common/osd.h
index 4431cbc..c59d9c3 100644
--- a/board/gdsys/common/osd.h
+++ b/board/gdsys/common/osd.h
@@ -24,6 +24,6 @@
 #ifndef _OSD_H_
 #define _OSD_H_
 
-int osd_probe(void);
+int osd_probe(unsigned screen);
 
 #endif
-- 
1.5.6.5

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