From 8508b89e366906ec4f1b15fdd2e9ce5fab2b1bd6 Mon Sep 17 00:00:00 2001 From: blueswir1 Date: Sun, 6 May 2007 17:39:55 +0000 Subject: Add dummy THC and TEC registers to TCX git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2775 c046a42c-6fe2-441c-8c8c-71466251a162 --- hw/tcx.c | 39 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 36 insertions(+), 3 deletions(-) (limited to 'hw/tcx.c') diff --git a/hw/tcx.c b/hw/tcx.c index 73ea813..db27dcf 100644 --- a/hw/tcx.c +++ b/hw/tcx.c @@ -26,6 +26,9 @@ #define MAXX 1024 #define MAXY 768 #define TCX_DAC_NREGS 16 +#define TCX_THC_NREGS_8 0x081c +#define TCX_THC_NREGS_24 0x1000 +#define TCX_TEC_NREGS 0x1000 typedef struct TCXState { uint32_t addr; @@ -467,12 +470,34 @@ static CPUWriteMemoryFunc *tcx_dac_write[3] = { tcx_dac_writel, }; +static uint32_t tcx_dummy_readl(void *opaque, target_phys_addr_t addr) +{ + return 0; +} + +static void tcx_dummy_writel(void *opaque, target_phys_addr_t addr, + uint32_t val) +{ +} + +static CPUReadMemoryFunc *tcx_dummy_read[3] = { + tcx_dummy_readl, + tcx_dummy_readl, + tcx_dummy_readl, +}; + +static CPUWriteMemoryFunc *tcx_dummy_write[3] = { + tcx_dummy_writel, + tcx_dummy_writel, + tcx_dummy_writel, +}; + void tcx_init(DisplayState *ds, uint32_t addr, uint8_t *vram_base, unsigned long vram_offset, int vram_size, int width, int height, int depth) { TCXState *s; - int io_memory; + int io_memory, dummy_memory; int size; s = qemu_mallocz(sizeof(TCXState)); @@ -495,6 +520,10 @@ void tcx_init(DisplayState *ds, uint32_t addr, uint8_t *vram_base, io_memory = cpu_register_io_memory(0, tcx_dac_read, tcx_dac_write, s); cpu_register_physical_memory(addr + 0x00200000, TCX_DAC_NREGS, io_memory); + dummy_memory = cpu_register_io_memory(0, tcx_dummy_read, tcx_dummy_write, + s); + cpu_register_physical_memory(addr + 0x00700000, TCX_TEC_NREGS, + dummy_memory); if (depth == 24) { // 24-bit plane size = vram_size * 4; @@ -509,9 +538,13 @@ void tcx_init(DisplayState *ds, uint32_t addr, uint8_t *vram_base, s->cplane = (uint32_t *)vram_base; s->cplane_offset = vram_offset; cpu_register_physical_memory(addr + 0x0a000000, size, vram_offset); - graphic_console_init(s->ds, tcx24_update_display, tcx24_invalidate_display, - tcx24_screen_dump, s); + cpu_register_physical_memory(addr + 0x00301000, TCX_THC_NREGS_24, + dummy_memory); + graphic_console_init(s->ds, tcx24_update_display, + tcx24_invalidate_display, tcx24_screen_dump, s); } else { + cpu_register_physical_memory(addr + 0x00300000, TCX_THC_NREGS_8, + dummy_memory); graphic_console_init(s->ds, tcx_update_display, tcx_invalidate_display, tcx_screen_dump, s); } -- cgit v1.1