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-rw-r--r--hw/pl110.c420
1 files changed, 0 insertions, 420 deletions
diff --git a/hw/pl110.c b/hw/pl110.c
deleted file mode 100644
index ecebe35..0000000
--- a/hw/pl110.c
+++ /dev/null
@@ -1,420 +0,0 @@
-/*
- * Arm PrimeCell PL110 Color LCD Controller
- *
- * Copyright (c) 2005-2006 CodeSourcery.
- * Written by Paul Brook
- *
- * This code is licenced under the GNU LGPL
- */
-
-#include "vl.h"
-
-#define PL110_CR_EN 0x001
-#define PL110_CR_BEBO 0x200
-#define PL110_CR_BEPO 0x400
-#define PL110_CR_PWR 0x800
-
-enum pl110_bppmode
-{
- BPP_1,
- BPP_2,
- BPP_4,
- BPP_8,
- BPP_16,
- BPP_32
-};
-
-typedef struct {
- uint32_t base;
- DisplayState *ds;
- /* The Versatile/PB uses a slightly modified PL110 controller. */
- int versatile;
- void *pic;
- uint32_t timing[4];
- uint32_t cr;
- uint32_t upbase;
- uint32_t lpbase;
- uint32_t int_status;
- uint32_t int_mask;
- int cols;
- int rows;
- enum pl110_bppmode bpp;
- int invalidate;
- uint32_t pallette[256];
- uint32_t raw_pallette[128];
- int irq;
-} pl110_state;
-
-static const unsigned char pl110_id[] =
-{ 0x10, 0x11, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 };
-
-/* The Arm documentation (DDI0224C) says the CLDC on the Versatile board
- has a different ID. However Linux only looks for the normal ID. */
-#if 0
-static const unsigned char pl110_versatile_id[] =
-{ 0x93, 0x10, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 };
-#else
-#define pl110_versatile_id pl110_id
-#endif
-
-static inline uint32_t rgb_to_pixel8(unsigned int r, unsigned int g, unsigned b)
-{
- return ((r >> 5) << 5) | ((g >> 5) << 2) | (b >> 6);
-}
-
-static inline uint32_t rgb_to_pixel15(unsigned int r, unsigned int g, unsigned b)
-{
- return ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3);
-}
-
-static inline uint32_t rgb_to_pixel16(unsigned int r, unsigned int g, unsigned b)
-{
- return ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
-}
-
-static inline uint32_t rgb_to_pixel24(unsigned int r, unsigned int g, unsigned b)
-{
- return (r << 16) | (g << 8) | b;
-}
-
-static inline uint32_t rgb_to_pixel32(unsigned int r, unsigned int g, unsigned b)
-{
- return (r << 16) | (g << 8) | b;
-}
-
-typedef void (*drawfn)(uint32_t *, uint8_t *, const uint8_t *, int);
-
-#define BITS 8
-#include "pl110_template.h"
-#define BITS 15
-#include "pl110_template.h"
-#define BITS 16
-#include "pl110_template.h"
-#define BITS 24
-#include "pl110_template.h"
-#define BITS 32
-#include "pl110_template.h"
-
-static int pl110_enabled(pl110_state *s)
-{
- return (s->cr & PL110_CR_EN) && (s->cr & PL110_CR_PWR);
-}
-
-static void pl110_update_display(void *opaque)
-{
- pl110_state *s = (pl110_state *)opaque;
- drawfn* fntable;
- drawfn fn;
- uint32_t *pallette;
- uint32_t addr;
- uint32_t base;
- int dest_width;
- int src_width;
- uint8_t *dest;
- uint8_t *src;
- int first, last = 0;
- int dirty, new_dirty;
- int i;
-
- if (!pl110_enabled(s))
- return;
-
- switch (s->ds->depth) {
- case 0:
- return;
- case 8:
- fntable = pl110_draw_fn_8;
- dest_width = 1;
- break;
- case 15:
- fntable = pl110_draw_fn_15;
- dest_width = 2;
- break;
- case 16:
- fntable = pl110_draw_fn_16;
- dest_width = 2;
- break;
- case 24:
- fntable = pl110_draw_fn_24;
- dest_width = 3;
- break;
- case 32:
- fntable = pl110_draw_fn_32;
- dest_width = 4;
- break;
- default:
- fprintf(stderr, "pl110: Bad color depth\n");
- exit(1);
- }
- if (s->cr & PL110_CR_BEBO)
- fn = fntable[s->bpp + 6];
- else if (s->cr & PL110_CR_BEPO)
- fn = fntable[s->bpp + 12];
- else
- fn = fntable[s->bpp];
-
- src_width = s->cols;
- switch (s->bpp) {
- case BPP_1:
- src_width >>= 3;
- break;
- case BPP_2:
- src_width >>= 2;
- break;
- case BPP_4:
- src_width >>= 1;
- break;
- case BPP_8:
- break;
- case BPP_16:
- src_width <<= 1;
- break;
- case BPP_32:
- src_width <<= 2;
- break;
- }
- dest_width *= s->cols;
- pallette = s->pallette;
- base = s->upbase;
- /* HACK: Arm aliases physical memory at 0x80000000. */
- if (base > 0x80000000)
- base -= 0x80000000;
- src = phys_ram_base + base;
- dest = s->ds->data;
- first = -1;
- addr = base;
-
- dirty = cpu_physical_memory_get_dirty(addr, VGA_DIRTY_FLAG);
- for (i = 0; i < s->rows; i++) {
- new_dirty = 0;
- if ((addr & TARGET_PAGE_MASK) + src_width >= TARGET_PAGE_SIZE) {
- uint32_t tmp;
- for (tmp = 0; tmp < src_width; tmp += TARGET_PAGE_SIZE) {
- new_dirty |= cpu_physical_memory_get_dirty(addr + tmp,
- VGA_DIRTY_FLAG);
- }
- }
-
- if (dirty || new_dirty || s->invalidate) {
- fn(pallette, dest, src, s->cols);
- if (first == -1)
- first = i;
- last = i;
- }
- dirty = new_dirty;
- addr += src_width;
- dest += dest_width;
- src += src_width;
- }
- if (first < 0)
- return;
-
- s->invalidate = 0;
- cpu_physical_memory_reset_dirty(base + first * src_width,
- base + (last + 1) * src_width,
- VGA_DIRTY_FLAG);
- dpy_update(s->ds, 0, first, s->cols, last - first + 1);
-}
-
-static void pl110_invalidate_display(void * opaque)
-{
- pl110_state *s = (pl110_state *)opaque;
- s->invalidate = 1;
-}
-
-static void pl110_update_pallette(pl110_state *s, int n)
-{
- int i;
- uint32_t raw;
- unsigned int r, g, b;
-
- raw = s->raw_pallette[n];
- n <<= 1;
- for (i = 0; i < 2; i++) {
- r = (raw & 0x1f) << 3;
- raw >>= 5;
- g = (raw & 0x1f) << 3;
- raw >>= 5;
- b = (raw & 0x1f) << 3;
- /* The I bit is ignored. */
- raw >>= 6;
- switch (s->ds->depth) {
- case 8:
- s->pallette[n] = rgb_to_pixel8(r, g, b);
- break;
- case 15:
- s->pallette[n] = rgb_to_pixel15(r, g, b);
- break;
- case 16:
- s->pallette[n] = rgb_to_pixel16(r, g, b);
- break;
- case 24:
- case 32:
- s->pallette[n] = rgb_to_pixel32(r, g, b);
- break;
- }
- n++;
- }
-}
-
-static void pl110_resize(pl110_state *s, int width, int height)
-{
- if (width != s->cols || height != s->rows) {
- if (pl110_enabled(s)) {
- dpy_resize(s->ds, width, height);
- }
- }
- s->cols = width;
- s->rows = height;
-}
-
-/* Update interrupts. */
-static void pl110_update(pl110_state *s)
-{
- /* TODO: Implement interrupts. */
-}
-
-static uint32_t pl110_read(void *opaque, target_phys_addr_t offset)
-{
- pl110_state *s = (pl110_state *)opaque;
-
- offset -= s->base;
- if (offset >= 0xfe0 && offset < 0x1000) {
- if (s->versatile)
- return pl110_versatile_id[(offset - 0xfe0) >> 2];
- else
- return pl110_id[(offset - 0xfe0) >> 2];
- }
- if (offset >= 0x200 && offset < 0x400) {
- return s->raw_pallette[(offset - 0x200) >> 2];
- }
- switch (offset >> 2) {
- case 0: /* LCDTiming0 */
- return s->timing[0];
- case 1: /* LCDTiming1 */
- return s->timing[1];
- case 2: /* LCDTiming2 */
- return s->timing[2];
- case 3: /* LCDTiming3 */
- return s->timing[3];
- case 4: /* LCDUPBASE */
- return s->upbase;
- case 5: /* LCDLPBASE */
- return s->lpbase;
- case 6: /* LCDIMSC */
- return s->int_mask;
- case 7: /* LCDControl */
- return s->cr;
- case 8: /* LCDRIS */
- return s->int_status;
- case 9: /* LCDMIS */
- return s->int_status & s->int_mask;
- case 11: /* LCDUPCURR */
- /* TODO: Implement vertical refresh. */
- return s->upbase;
- case 12: /* LCDLPCURR */
- return s->lpbase;
- default:
- cpu_abort (cpu_single_env, "pl110_read: Bad offset %x\n", offset);
- return 0;
- }
-}
-
-static void pl110_write(void *opaque, target_phys_addr_t offset,
- uint32_t val)
-{
- pl110_state *s = (pl110_state *)opaque;
- int n;
-
- /* For simplicity invalidate the display whenever a control register
- is writen to. */
- s->invalidate = 1;
- offset -= s->base;
- if (offset >= 0x200 && offset < 0x400) {
- /* Pallette. */
- n = (offset - 0x200) >> 2;
- s->raw_pallette[(offset - 0x200) >> 2] = val;
- pl110_update_pallette(s, n);
- return;
- }
- switch (offset >> 2) {
- case 0: /* LCDTiming0 */
- s->timing[0] = val;
- n = ((val & 0xfc) + 4) * 4;
- pl110_resize(s, n, s->rows);
- break;
- case 1: /* LCDTiming1 */
- s->timing[1] = val;
- n = (val & 0x3ff) + 1;
- pl110_resize(s, s->cols, n);
- break;
- case 2: /* LCDTiming2 */
- s->timing[2] = val;
- break;
- case 3: /* LCDTiming3 */
- s->timing[3] = val;
- break;
- case 4: /* LCDUPBASE */
- s->upbase = val;
- break;
- case 5: /* LCDLPBASE */
- s->lpbase = val;
- break;
- case 6: /* LCDIMSC */
- if (s->versatile)
- goto control;
- imsc:
- s->int_mask = val;
- pl110_update(s);
- break;
- case 7: /* LCDControl */
- if (s->versatile)
- goto imsc;
- control:
- s->cr = val;
- s->bpp = (val >> 1) & 7;
- if (pl110_enabled(s)) {
- dpy_resize(s->ds, s->cols, s->rows);
- }
- break;
- case 10: /* LCDICR */
- s->int_status &= ~val;
- pl110_update(s);
- break;
- default:
- cpu_abort (cpu_single_env, "pl110_write: Bad offset %x\n", offset);
- }
-}
-
-static CPUReadMemoryFunc *pl110_readfn[] = {
- pl110_read,
- pl110_read,
- pl110_read
-};
-
-static CPUWriteMemoryFunc *pl110_writefn[] = {
- pl110_write,
- pl110_write,
- pl110_write
-};
-
-void *pl110_init(DisplayState *ds, uint32_t base, void *pic, int irq,
- int versatile)
-{
- pl110_state *s;
- int iomemtype;
-
- s = (pl110_state *)qemu_mallocz(sizeof(pl110_state));
- iomemtype = cpu_register_io_memory(0, pl110_readfn,
- pl110_writefn, s);
- cpu_register_physical_memory(base, 0x00000fff, iomemtype);
- s->base = base;
- s->ds = ds;
- s->versatile = versatile;
- s->pic = pic;
- s->irq = irq;
- graphic_console_init(ds, pl110_update_display, pl110_invalidate_display,
- NULL, s);
- /* ??? Save/restore. */
- return s;
-}
generated by cgit v1.1 at 2025-08-15 12:35:20 +0000