From 31211df14dd887cd9976722dd527a4b592dd5a07 Mon Sep 17 00:00:00 2001 From: ths Date: Mon, 25 Jun 2007 10:57:10 +0000 Subject: [PATCH] Add a 7 segments + led display, by Herve Poussineau. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3015 c046a42c-6fe2-441c-8c8c-71466251a162 --- Makefile.target | 1 + hw/jazz_led.c | 303 +++++++++++++++++++++++++++++++++++++++++++++++ hw/mips_pica61.c | 3 + vl.h | 3 + 4 files changed, 310 insertions(+) create mode 100644 hw/jazz_led.c diff --git a/Makefile.target b/Makefile.target index 67e7bd3cf1..01d2549755 100644 --- a/Makefile.target +++ b/Makefile.target @@ -438,6 +438,7 @@ endif ifeq ($(TARGET_BASE_ARCH), mips) VL_OBJS+= mips_r4k.o mips_malta.o mips_pica61.o VL_OBJS+= mips_timer.o mips_int.o dma.o vga.o serial.o i8254.o i8259.o +VL_OBJS+= jazz_led.o VL_OBJS+= ide.o gt64xxx.o pckbd.o ps2.o fdc.o mc146818rtc.o usb-uhci.o acpi.o ds1225y.o VL_OBJS+= piix_pci.o smbus_eeprom.o parallel.o mixeng.o cirrus_vga.o $(SOUND_HW) $(AUDIODRV) CPPFLAGS += -DHAS_AUDIO diff --git a/hw/jazz_led.c b/hw/jazz_led.c new file mode 100644 index 0000000000..6f741735ed --- /dev/null +++ b/hw/jazz_led.c @@ -0,0 +1,303 @@ +/* + * QEMU JAZZ LED emulator. + * + * Copyright (c) 2007 Hervé Poussineau + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "vl.h" +#include "pixel_ops.h" + +//#define DEBUG_LED + +typedef enum { + REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2, +} screen_state_t; + +typedef struct LedState { + target_phys_addr_t base; + uint8_t segments; + DisplayState *ds; + screen_state_t state; +} LedState; + +static uint32_t led_readb(void *opaque, target_phys_addr_t addr) +{ + LedState *s = opaque; + int relative_addr = addr - s->base; + uint32_t val; + + switch (relative_addr) { + case 0: + val = s->segments; + break; + default: +#ifdef DEBUG_LED + printf("jazz led: invalid read [0x%x]\n", relative_addr); +#endif + val = 0; + } + + return val; +} + +static uint32_t led_readw(void *opaque, target_phys_addr_t addr) +{ + uint32_t v; +#ifdef TARGET_WORDS_BIGENDIAN + v = led_readb(opaque, addr) << 8; + v |= led_readb(opaque, addr + 1); +#else + v = led_readb(opaque, addr); + v |= led_readb(opaque, addr + 1) << 8; +#endif + return v; +} + +static uint32_t led_readl(void *opaque, target_phys_addr_t addr) +{ + uint32_t v; +#ifdef TARGET_WORDS_BIGENDIAN + v = led_readb(opaque, addr) << 24; + v |= led_readb(opaque, addr + 1) << 16; + v |= led_readb(opaque, addr + 2) << 8; + v |= led_readb(opaque, addr + 3); +#else + v = led_readb(opaque, addr); + v |= led_readb(opaque, addr + 1) << 8; + v |= led_readb(opaque, addr + 2) << 16; + v |= led_readb(opaque, addr + 3) << 24; +#endif + return v; +} + +static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) +{ + LedState *s = opaque; + int relative_addr = addr - s->base; + + switch (relative_addr) { + case 0: + s->segments = val; + s->state |= REDRAW_SEGMENTS; + break; + default: +#ifdef DEBUG_LED + printf("jazz led: invalid write of 0x%02x at [0x%x]\n", val, relative_addr); +#endif + break; + } +} + +static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val) +{ +#ifdef TARGET_WORDS_BIGENDIAN + led_writeb(opaque, addr, (val >> 8) & 0xff); + led_writeb(opaque, addr + 1, val & 0xff); +#else + led_writeb(opaque, addr, val & 0xff); + led_writeb(opaque, addr + 1, (val >> 8) & 0xff); +#endif +} + +static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val) +{ +#ifdef TARGET_WORDS_BIGENDIAN + led_writeb(opaque, addr, (val >> 24) & 0xff); + led_writeb(opaque, addr + 1, (val >> 16) & 0xff); + led_writeb(opaque, addr + 2, (val >> 8) & 0xff); + led_writeb(opaque, addr + 3, val & 0xff); +#else + led_writeb(opaque, addr, val & 0xff); + led_writeb(opaque, addr + 1, (val >> 8) & 0xff); + led_writeb(opaque, addr + 2, (val >> 16) & 0xff); + led_writeb(opaque, addr + 3, (val >> 24) & 0xff); +#endif +} + +static CPUReadMemoryFunc *led_read[3] = { + led_readb, + led_readw, + led_readl, +}; + +static CPUWriteMemoryFunc *led_write[3] = { + led_writeb, + led_writew, + led_writel, +}; + +/***********************************************************/ +/* jazz_led display */ + +static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color) +{ + uint8_t *d; + int x, bpp; + + bpp = (ds->depth + 7) >> 3; + d = ds->data + ds->linesize * posy + bpp * posx1; + switch(bpp) { + case 1: + for (x = posx1; x <= posx2; x++) { + *((uint8_t *)d) = color; + d++; + } + break; + case 2: + for (x = posx1; x <= posx2; x++) { + *((uint16_t *)d) = color; + d += 2; + } + break; + case 4: + for (x = posx1; x <= posx2; x++) { + *((uint32_t *)d) = color; + d += 4; + } + break; + } +} + +static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color) +{ + uint8_t *d; + int y, bpp; + + bpp = (ds->depth + 7) >> 3; + d = ds->data + ds->linesize * posy1 + bpp * posx; + switch(bpp) { + case 1: + for (y = posy1; y <= posy2; y++) { + *((uint8_t *)d) = color; + d += ds->linesize; + } + break; + case 2: + for (y = posy1; y <= posy2; y++) { + *((uint16_t *)d) = color; + d += ds->linesize; + } + break; + case 4: + for (y = posy1; y <= posy2; y++) { + *((uint32_t *)d) = color; + d += ds->linesize; + } + break; + } +} + +static void jazz_led_update_display(void *opaque) +{ + LedState *s = opaque; + DisplayState *ds = s->ds; + uint8_t *d1; + uint32_t color_segment, color_led; + int y, bpp; + + if (s->state & REDRAW_BACKGROUND) { + /* clear screen */ + bpp = (ds->depth + 7) >> 3; + d1 = ds->data; + for (y = 0; y < ds->height; y++) { + memset(d1, 0x00, ds->width * bpp); + d1 += ds->linesize; + } + } + + if (s->state & REDRAW_SEGMENTS) { + /* set colors according to bpp */ + switch (ds->depth) { + case 8: + color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa); + color_led = rgb_to_pixel8(0x00, 0xff, 0x00); + break; + case 15: + color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa); + color_led = rgb_to_pixel15(0x00, 0xff, 0x00); + break; + case 16: + color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa); + color_led = rgb_to_pixel16(0x00, 0xff, 0x00); + case 24: + color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa); + color_led = rgb_to_pixel24(0x00, 0xff, 0x00); + break; + case 32: + color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa); + color_led = rgb_to_pixel32(0x00, 0xff, 0x00); + break; + default: + return; + } + + /* display segments */ + draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0); + draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0); + draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0); + draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0); + draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0); + draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0); + draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0); + + /* display led */ + if (!(s->segments & 0x01)) + color_led = 0; /* black */ + draw_horizontal_line(ds, 68, 50, 50, color_led); + draw_horizontal_line(ds, 69, 49, 51, color_led); + draw_horizontal_line(ds, 70, 48, 52, color_led); + draw_horizontal_line(ds, 71, 49, 51, color_led); + draw_horizontal_line(ds, 72, 50, 50, color_led); + } + + s->state = REDRAW_NONE; + dpy_update(ds, 0, 0, ds->width, ds->height); +} + +static void jazz_led_invalidate_display(void *opaque) +{ + LedState *s = opaque; + s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND; +} + +static void jazz_led_screen_dump(void *opaque, const char *filename) +{ + printf("jazz_led_screen_dump() not implemented\n"); +} + +void jazz_led_init(DisplayState *ds, target_phys_addr_t base) +{ + LedState *s; + int io; + + s = qemu_mallocz(sizeof(LedState)); + if (!s) + return; + + s->base = base; + s->ds = ds; + s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND; + + io = cpu_register_io_memory(0, led_read, led_write, s); + cpu_register_physical_memory(s->base, 1, io); + + graphic_console_init(ds, jazz_led_update_display, jazz_led_invalidate_display, jazz_led_screen_dump, s); +} diff --git a/hw/mips_pica61.c b/hw/mips_pica61.c index 17c7a0f173..2c44150176 100644 --- a/hw/mips_pica61.c +++ b/hw/mips_pica61.c @@ -168,6 +168,9 @@ void mips_pica61_init (int ram_size, int vga_ram_size, int boot_device, * but let's do with what Qemu currenly emulates... */ isa_vga_mm_init(ds, phys_ram_base + ram_size, ram_size, vga_ram_size, 0x40000000, 0x60000000, 0); + + /* LED indicator */ + jazz_led_init(ds, 0x8000f000); } QEMUMachine mips_pica61_machine = { diff --git a/vl.h b/vl.h index 1ab6411bce..4a072a90a9 100644 --- a/vl.h +++ b/vl.h @@ -1128,6 +1128,9 @@ int pit_get_initial_count(PITState *pit, int channel); int pit_get_mode(PITState *pit, int channel); int pit_get_out(PITState *pit, int channel, int64_t current_time); +/* jazz_led.c */ +extern void jazz_led_init(DisplayState *ds, target_phys_addr_t base); + /* pcspk.c */ void pcspk_init(PITState *); int pcspk_audio_init(AudioState *, qemu_irq *pic);