diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/video/bus_vcxk.c')
| -rw-r--r-- | qemu/roms/u-boot/drivers/video/bus_vcxk.c | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/drivers/video/bus_vcxk.c b/qemu/roms/u-boot/drivers/video/bus_vcxk.c new file mode 100644 index 000000000..60a5cc5b7 --- /dev/null +++ b/qemu/roms/u-boot/drivers/video/bus_vcxk.c @@ -0,0 +1,426 @@ +/* + * (C) Copyright 2005-2009 + * Jens Scharsig @ BuS Elektronik GmbH & Co. KG, <esw@bus-elektronik.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <bmp_layout.h> +#include <asm/io.h> + +vu_char *vcxk_bws = ((vu_char *) (CONFIG_SYS_VCXK_BASE)); +vu_short *vcxk_bws_word = ((vu_short *)(CONFIG_SYS_VCXK_BASE)); +vu_long *vcxk_bws_long = ((vu_long *) (CONFIG_SYS_VCXK_BASE)); + +#ifdef CONFIG_AT91RM9200 + #include <asm/arch/hardware.h> + #include <asm/arch/at91_pio.h> + + #ifndef VCBITMASK + #define VCBITMASK(bitno) (0x0001 << (bitno % 16)) + #endif +at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE; +#define VCXK_INIT_PIN(PORT, PIN, DDR, I0O1) \ + do { \ + writel(PIN, &pio->PORT.per); \ + writel(PIN, &pio->PORT.DDR); \ + writel(PIN, &pio->PORT.mddr); \ + if (!I0O1) \ + writel(PIN, &pio->PORT.puer); \ + } while (0); + +#define VCXK_SET_PIN(PORT, PIN) writel(PIN, &pio->PORT.sodr); +#define VCXK_CLR_PIN(PORT, PIN) writel(PIN, &pio->PORT.codr); + +#define VCXK_ACKNOWLEDGE \ + (!(readl(&pio->CONFIG_SYS_VCXK_ACKNOWLEDGE_PORT.pdsr) & \ + CONFIG_SYS_VCXK_ACKNOWLEDGE_PIN)) +#elif defined(CONFIG_MCF52x2) + #include <asm/m5282.h> + #ifndef VCBITMASK + #define VCBITMASK(bitno) (0x8000 >> (bitno % 16)) + #endif + + #define VCXK_INIT_PIN(PORT, PIN, DDR, I0O1) \ + if (I0O1) DDR |= PIN; else DDR &= ~PIN; + + #define VCXK_SET_PIN(PORT, PIN) PORT |= PIN; + #define VCXK_CLR_PIN(PORT, PIN) PORT &= ~PIN; + + #define VCXK_ACKNOWLEDGE \ + (!(CONFIG_SYS_VCXK_ACKNOWLEDGE_PORT & \ + CONFIG_SYS_VCXK_ACKNOWLEDGE_PIN)) + +#else + #error no vcxk support for selected ARCH +#endif + +#define VCXK_DISABLE\ + VCXK_SET_PIN(CONFIG_SYS_VCXK_ENABLE_PORT, CONFIG_SYS_VCXK_ENABLE_PIN) +#define VCXK_ENABLE\ + VCXK_CLR_PIN(CONFIG_SYS_VCXK_ENABLE_PORT, CONFIG_SYS_VCXK_ENABLE_PIN) + +#ifndef CONFIG_SYS_VCXK_DOUBLEBUFFERED + #define VCXK_BWS(x, data) vcxk_bws[x] = data; + #define VCXK_BWS_WORD_SET(x, mask) vcxk_bws_word[x] |= mask; + #define VCXK_BWS_WORD_CLEAR(x, mask) vcxk_bws_word[x] &= ~mask; + #define VCXK_BWS_LONG(x, data) vcxk_bws_long[x] = data; +#else + u_char double_bws[16384]; + u_short *double_bws_word; + u_long *double_bws_long; + #define VCXK_BWS(x,data) \ + double_bws[x] = data; vcxk_bws[x] = data; + #define VCXK_BWS_WORD_SET(x,mask) \ + double_bws_word[x] |= mask; \ + vcxk_bws_word[x] = double_bws_word[x]; + #define VCXK_BWS_WORD_CLEAR(x,mask) \ + double_bws_word[x] &= ~mask; \ + vcxk_bws_word[x] = double_bws_word[x]; + #define VCXK_BWS_LONG(x,data) \ + double_bws_long[x] = data; vcxk_bws_long[x] = data; +#endif + +#define VC4K16_Bright1 vcxk_bws_word[0x20004 / 2] +#define VC4K16_Bright2 vcxk_bws_word[0x20006 / 2] +#define VC2K_Bright vcxk_bws[0x8000] +#define VC8K_BrightH vcxk_bws[0xC000] +#define VC8K_BrightL vcxk_bws[0xC001] + +vu_char VC4K16; + +u_long display_width; +u_long display_height; +u_long display_bwidth; + +ulong search_vcxk_driver(void); +void vcxk_cls(void); +void vcxk_setbrightness(unsigned int side, short brightness); +int vcxk_request(void); +int vcxk_acknowledge_wait(void); +void vcxk_clear(void); + +/* + ****f* bus_vcxk/vcxk_init + * FUNCTION + * initialalize Video Controller + * PARAMETERS + * width visible display width in pixel + * height visible display height in pixel + *** + */ + +int vcxk_init(unsigned long width, unsigned long height) +{ +#ifdef CONFIG_SYS_VCXK_RESET_PORT + VCXK_INIT_PIN(CONFIG_SYS_VCXK_RESET_PORT, + CONFIG_SYS_VCXK_RESET_PIN, CONFIG_SYS_VCXK_RESET_DDR, 1) + VCXK_SET_PIN(CONFIG_SYS_VCXK_RESET_PORT, CONFIG_SYS_VCXK_RESET_PIN); +#endif + +#ifdef CONFIG_SYS_VCXK_DOUBLEBUFFERED + double_bws_word = (u_short *)double_bws; + double_bws_long = (u_long *)double_bws; + debug("%px %px %px\n", double_bws, double_bws_word, double_bws_long); +#endif + display_width = width; + display_height = height; +#if (CONFIG_SYS_VCXK_DEFAULT_LINEALIGN == 4) + display_bwidth = ((width + 31) / 8) & ~0x3; +#elif (CONFIG_SYS_VCXK_DEFAULT_LINEALIGN == 2) + display_bwidth = ((width + 15) / 8) & ~0x1; +#else + #error CONFIG_SYS_VCXK_DEFAULT_LINEALIGN is invalid +#endif + debug("linesize ((%ld + 15) / 8 & ~0x1) = %ld\n", + display_width, display_bwidth); + +#ifdef CONFIG_SYS_VCXK_AUTODETECT + VC4K16 = 0; + vcxk_bws_long[1] = 0x0; + vcxk_bws_long[1] = 0x55AAAA55; + vcxk_bws_long[5] = 0x0; + if (vcxk_bws_long[1] == 0x55AAAA55) + VC4K16 = 1; +#else + VC4K16 = 1; + debug("No autodetect: use vc4k\n"); +#endif + + VCXK_INIT_PIN(CONFIG_SYS_VCXK_INVERT_PORT, + CONFIG_SYS_VCXK_INVERT_PIN, CONFIG_SYS_VCXK_INVERT_DDR, 1) + VCXK_SET_PIN(CONFIG_SYS_VCXK_INVERT_PORT, CONFIG_SYS_VCXK_INVERT_PIN) + + VCXK_SET_PIN(CONFIG_SYS_VCXK_REQUEST_PORT, CONFIG_SYS_VCXK_REQUEST_PIN); + VCXK_INIT_PIN(CONFIG_SYS_VCXK_REQUEST_PORT, + CONFIG_SYS_VCXK_REQUEST_PIN, CONFIG_SYS_VCXK_REQUEST_DDR, 1) + + VCXK_INIT_PIN(CONFIG_SYS_VCXK_ACKNOWLEDGE_PORT, + CONFIG_SYS_VCXK_ACKNOWLEDGE_PIN, + CONFIG_SYS_VCXK_ACKNOWLEDGE_DDR, 0) + + VCXK_DISABLE; + VCXK_INIT_PIN(CONFIG_SYS_VCXK_ENABLE_PORT, + CONFIG_SYS_VCXK_ENABLE_PIN, CONFIG_SYS_VCXK_ENABLE_DDR, 1) + + vcxk_cls(); + vcxk_cls(); /* clear second/hidden page */ + + vcxk_setbrightness(3, 1000); + VCXK_ENABLE; + return 1; +} + +/* + ****f* bus_vcxk/vcxk_setpixel + * FUNCTION + * set the pixel[x,y] with the given color + * PARAMETER + * x pixel colum + * y pixel row + * color <0x40 off/black + * >0x40 on + *** + */ + +void vcxk_setpixel(int x, int y, unsigned long color) +{ + vu_short dataptr; + + if ((x < display_width) && (y < display_height)) { + dataptr = ((x / 16)) + (y * (display_bwidth >> 1)); + + color = ((color >> 16) & 0xFF) | + ((color >> 8) & 0xFF) | (color & 0xFF); + + if (color > 0x40) { + VCXK_BWS_WORD_SET(dataptr, VCBITMASK(x)); + } else { + VCXK_BWS_WORD_CLEAR(dataptr, VCBITMASK(x)); + } + } +} + +/* + ****f* bus_vcxk/vcxk_loadimage + * FUNCTION + * copies a binary image to display memory + *** + */ + +void vcxk_loadimage(ulong source) +{ + int cnt; + vcxk_acknowledge_wait(); + if (VC4K16) { + for (cnt = 0; cnt < (16384 / 4); cnt++) { + VCXK_BWS_LONG(cnt, (*(ulong *) source)); + source = source + 4; + } + } else { + for (cnt = 0; cnt < 16384; cnt++) { + VCXK_BWS_LONG(cnt*2, (*(vu_char *) source)); + source++; + } + } + vcxk_request(); +} + +/* + ****f* bus_vcxk/vcxk_cls + * FUNCTION + * clear the display + *** + */ + +void vcxk_cls(void) +{ + vcxk_acknowledge_wait(); + vcxk_clear(); + vcxk_request(); +} + +/* + ****f* bus_vcxk/vcxk_clear(void) + * FUNCTION + * clear the display memory + *** + */ + +void vcxk_clear(void) +{ + int cnt; + + for (cnt = 0; cnt < (16384 / 4); cnt++) { + VCXK_BWS_LONG(cnt, 0) + } +} + +/* + ****f* bus_vcxk/vcxk_setbrightness + * FUNCTION + * set the display brightness + * PARAMETER + * side 1 set front side brightness + * 2 set back side brightness + * 3 set brightness for both sides + * brightness 0..1000 + *** + */ + +void vcxk_setbrightness(unsigned int side, short brightness) +{ + if (VC4K16) { + if ((side == 0) || (side & 0x1)) + VC4K16_Bright1 = brightness + 23; + if ((side == 0) || (side & 0x2)) + VC4K16_Bright2 = brightness + 23; + } else { + VC2K_Bright = (brightness >> 4) + 2; + VC8K_BrightH = (brightness + 23) >> 8; + VC8K_BrightL = (brightness + 23) & 0xFF; + } +} + +/* + ****f* bus_vcxk/vcxk_request + * FUNCTION + * requests viewing of display memory + *** + */ + +int vcxk_request(void) +{ + VCXK_CLR_PIN(CONFIG_SYS_VCXK_REQUEST_PORT, + CONFIG_SYS_VCXK_REQUEST_PIN) + VCXK_SET_PIN(CONFIG_SYS_VCXK_REQUEST_PORT, + CONFIG_SYS_VCXK_REQUEST_PIN); + return 1; +} + +/* + ****f* bus_vcxk/vcxk_acknowledge_wait + * FUNCTION + * wait for acknowledge viewing requests + *** + */ + +int vcxk_acknowledge_wait(void) +{ + while (VCXK_ACKNOWLEDGE) + ; + return 1; +} + +/* + ****f* bus_vcxk/vcxk_draw_mono + * FUNCTION + * copies a monochrom bitmap (BMP-Format) from given memory + * PARAMETER + * dataptr pointer to bitmap + * x output bitmap @ columne + * y output bitmap @ row + *** + */ + +void vcxk_draw_mono(unsigned char *dataptr, unsigned long linewidth, + unsigned long cp_width, unsigned long cp_height) +{ + unsigned char *lineptr; + unsigned long xcnt, ycnt; + + for (ycnt = cp_height; ycnt > 0; ycnt--) { + lineptr = dataptr; + for (xcnt = 0; xcnt < cp_width; xcnt++) { + if ((*lineptr << (xcnt % 8)) & 0x80) + vcxk_setpixel(xcnt, ycnt - 1, 0xFFFFFF); + else + vcxk_setpixel(xcnt, ycnt-1, 0); + + if ((xcnt % 8) == 7) + lineptr++; + } /* endfor xcnt */ + dataptr = dataptr + linewidth; + } /* endfor ycnt */ +} + +/* + ****f* bus_vcxk/vcxk_display_bitmap + * FUNCTION + * copies a bitmap (BMP-Format) to the given position + * PARAMETER + * addr pointer to bitmap + * x output bitmap @ columne + * y output bitmap @ row + *** + */ + +int vcxk_display_bitmap(ulong addr, int x, int y) +{ + bmp_image_t *bmp; + unsigned long width; + unsigned long height; + unsigned long bpp; + + unsigned long lw; + + unsigned long c_width; + unsigned long c_height; + unsigned char *dataptr; + + bmp = (bmp_image_t *) addr; + if ((bmp->header.signature[0] == 'B') && + (bmp->header.signature[1] == 'M')) { + width = le32_to_cpu(bmp->header.width); + height = le32_to_cpu(bmp->header.height); + bpp = le16_to_cpu(bmp->header.bit_count); + + dataptr = (unsigned char *) bmp + + le32_to_cpu(bmp->header.data_offset); + + if (display_width < (width + x)) + c_width = display_width - x; + else + c_width = width; + if (display_height < (height + y)) + c_height = display_height - y; + else + c_height = height; + + lw = (((width + 7) / 8) + 3) & ~0x3; + + if (c_height < height) + dataptr = dataptr + lw * (height - c_height); + switch (bpp) { + case 1: + vcxk_draw_mono(dataptr, lw, c_width, c_height); + break; + default: + printf("Error: %ld bit per pixel " + "not supported by VCxK\n", bpp); + return 0; + } + } else { + printf("Error: no valid bmp at %lx\n", (ulong) bmp); + return 0; + } + return 1; +} + +/* + ****f* bus_vcxk/video_display_bitmap + *** + */ + +int video_display_bitmap(ulong addr, int x, int y) +{ + vcxk_acknowledge_wait(); + if (vcxk_display_bitmap(addr, x, y)) { + vcxk_request(); + return 0; + } + return 1; +} + +/* EOF */ |