aboutsummaryrefslogtreecommitdiff
path: root/hw/ssd0323.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/ssd0323.c')
-rw-r--r--hw/ssd0323.c372
1 files changed, 0 insertions, 372 deletions
diff --git a/hw/ssd0323.c b/hw/ssd0323.c
deleted file mode 100644
index 84c86a5..0000000
--- a/hw/ssd0323.c
+++ /dev/null
@@ -1,372 +0,0 @@
-/*
- * SSD0323 OLED controller with OSRAM Pictiva 128x64 display.
- *
- * Copyright (c) 2006-2007 CodeSourcery.
- * Written by Paul Brook
- *
- * This code is licensed under the GPL.
- */
-
-/* The controller can support a variety of different displays, but we only
- implement one. Most of the commends relating to brightness and geometry
- setup are ignored. */
-#include "ssi.h"
-#include "ui/console.h"
-
-//#define DEBUG_SSD0323 1
-
-#ifdef DEBUG_SSD0323
-#define DPRINTF(fmt, ...) \
-do { printf("ssd0323: " fmt , ## __VA_ARGS__); } while (0)
-#define BADF(fmt, ...) \
-do { \
- fprintf(stderr, "ssd0323: error: " fmt , ## __VA_ARGS__); abort(); \
-} while (0)
-#else
-#define DPRINTF(fmt, ...) do {} while(0)
-#define BADF(fmt, ...) \
-do { fprintf(stderr, "ssd0323: error: " fmt , ## __VA_ARGS__);} while (0)
-#endif
-
-/* Scaling factor for pixels. */
-#define MAGNIFY 4
-
-#define REMAP_SWAP_COLUMN 0x01
-#define REMAP_SWAP_NYBBLE 0x02
-#define REMAP_VERTICAL 0x04
-#define REMAP_SWAP_COM 0x10
-#define REMAP_SPLIT_COM 0x40
-
-enum ssd0323_mode
-{
- SSD0323_CMD,
- SSD0323_DATA
-};
-
-typedef struct {
- SSISlave ssidev;
- DisplayState *ds;
-
- int cmd_len;
- int cmd;
- int cmd_data[8];
- int row;
- int row_start;
- int row_end;
- int col;
- int col_start;
- int col_end;
- int redraw;
- int remap;
- enum ssd0323_mode mode;
- uint8_t framebuffer[128 * 80 / 2];
-} ssd0323_state;
-
-static uint32_t ssd0323_transfer(SSISlave *dev, uint32_t data)
-{
- ssd0323_state *s = FROM_SSI_SLAVE(ssd0323_state, dev);
-
- switch (s->mode) {
- case SSD0323_DATA:
- DPRINTF("data 0x%02x\n", data);
- s->framebuffer[s->col + s->row * 64] = data;
- if (s->remap & REMAP_VERTICAL) {
- s->row++;
- if (s->row > s->row_end) {
- s->row = s->row_start;
- s->col++;
- }
- if (s->col > s->col_end) {
- s->col = s->col_start;
- }
- } else {
- s->col++;
- if (s->col > s->col_end) {
- s->row++;
- s->col = s->col_start;
- }
- if (s->row > s->row_end) {
- s->row = s->row_start;
- }
- }
- s->redraw = 1;
- break;
- case SSD0323_CMD:
- DPRINTF("cmd 0x%02x\n", data);
- if (s->cmd_len == 0) {
- s->cmd = data;
- } else {
- s->cmd_data[s->cmd_len - 1] = data;
- }
- s->cmd_len++;
- switch (s->cmd) {
-#define DATA(x) if (s->cmd_len <= (x)) return 0
- case 0x15: /* Set column. */
- DATA(2);
- s->col = s->col_start = s->cmd_data[0] % 64;
- s->col_end = s->cmd_data[1] % 64;
- break;
- case 0x75: /* Set row. */
- DATA(2);
- s->row = s->row_start = s->cmd_data[0] % 80;
- s->row_end = s->cmd_data[1] % 80;
- break;
- case 0x81: /* Set contrast */
- DATA(1);
- break;
- case 0x84: case 0x85: case 0x86: /* Max current. */
- DATA(0);
- break;
- case 0xa0: /* Set remapping. */
- /* FIXME: Implement this. */
- DATA(1);
- s->remap = s->cmd_data[0];
- break;
- case 0xa1: /* Set display start line. */
- case 0xa2: /* Set display offset. */
- /* FIXME: Implement these. */
- DATA(1);
- break;
- case 0xa4: /* Normal mode. */
- case 0xa5: /* All on. */
- case 0xa6: /* All off. */
- case 0xa7: /* Inverse. */
- /* FIXME: Implement these. */
- DATA(0);
- break;
- case 0xa8: /* Set multiplex ratio. */
- case 0xad: /* Set DC-DC converter. */
- DATA(1);
- /* Ignored. Don't care. */
- break;
- case 0xae: /* Display off. */
- case 0xaf: /* Display on. */
- DATA(0);
- /* TODO: Implement power control. */
- break;
- case 0xb1: /* Set phase length. */
- case 0xb2: /* Set row period. */
- case 0xb3: /* Set clock rate. */
- case 0xbc: /* Set precharge. */
- case 0xbe: /* Set VCOMH. */
- case 0xbf: /* Set segment low. */
- DATA(1);
- /* Ignored. Don't care. */
- break;
- case 0xb8: /* Set grey scale table. */
- /* FIXME: Implement this. */
- DATA(8);
- break;
- case 0xe3: /* NOP. */
- DATA(0);
- break;
- case 0xff: /* Nasty hack because we don't handle chip selects
- properly. */
- break;
- default:
- BADF("Unknown command: 0x%x\n", data);
- }
- s->cmd_len = 0;
- return 0;
- }
- return 0;
-}
-
-static void ssd0323_update_display(void *opaque)
-{
- ssd0323_state *s = (ssd0323_state *)opaque;
- uint8_t *dest;
- uint8_t *src;
- int x;
- int y;
- int i;
- int line;
- char *colors[16];
- char colortab[MAGNIFY * 64];
- char *p;
- int dest_width;
-
- if (!s->redraw)
- return;
-
- switch (ds_get_bits_per_pixel(s->ds)) {
- case 0:
- return;
- case 15:
- dest_width = 2;
- break;
- case 16:
- dest_width = 2;
- break;
- case 24:
- dest_width = 3;
- break;
- case 32:
- dest_width = 4;
- break;
- default:
- BADF("Bad color depth\n");
- return;
- }
- p = colortab;
- for (i = 0; i < 16; i++) {
- int n;
- colors[i] = p;
- switch (ds_get_bits_per_pixel(s->ds)) {
- case 15:
- n = i * 2 + (i >> 3);
- p[0] = n | (n << 5);
- p[1] = (n << 2) | (n >> 3);
- break;
- case 16:
- n = i * 2 + (i >> 3);
- p[0] = n | (n << 6) | ((n << 1) & 0x20);
- p[1] = (n << 3) | (n >> 2);
- break;
- case 24:
- case 32:
- n = (i << 4) | i;
- p[0] = p[1] = p[2] = n;
- break;
- default:
- BADF("Bad color depth\n");
- return;
- }
- p += dest_width;
- }
- /* TODO: Implement row/column remapping. */
- dest = ds_get_data(s->ds);
- for (y = 0; y < 64; y++) {
- line = y;
- src = s->framebuffer + 64 * line;
- for (x = 0; x < 64; x++) {
- int val;
- val = *src >> 4;
- for (i = 0; i < MAGNIFY; i++) {
- memcpy(dest, colors[val], dest_width);
- dest += dest_width;
- }
- val = *src & 0xf;
- for (i = 0; i < MAGNIFY; i++) {
- memcpy(dest, colors[val], dest_width);
- dest += dest_width;
- }
- src++;
- }
- for (i = 1; i < MAGNIFY; i++) {
- memcpy(dest, dest - dest_width * MAGNIFY * 128,
- dest_width * 128 * MAGNIFY);
- dest += dest_width * 128 * MAGNIFY;
- }
- }
- s->redraw = 0;
- dpy_gfx_update(s->ds, 0, 0, 128 * MAGNIFY, 64 * MAGNIFY);
-}
-
-static void ssd0323_invalidate_display(void * opaque)
-{
- ssd0323_state *s = (ssd0323_state *)opaque;
- s->redraw = 1;
-}
-
-/* Command/data input. */
-static void ssd0323_cd(void *opaque, int n, int level)
-{
- ssd0323_state *s = (ssd0323_state *)opaque;
- DPRINTF("%s mode\n", level ? "Data" : "Command");
- s->mode = level ? SSD0323_DATA : SSD0323_CMD;
-}
-
-static void ssd0323_save(QEMUFile *f, void *opaque)
-{
- SSISlave *ss = SSI_SLAVE(opaque);
- ssd0323_state *s = (ssd0323_state *)opaque;
- int i;
-
- qemu_put_be32(f, s->cmd_len);
- qemu_put_be32(f, s->cmd);
- for (i = 0; i < 8; i++)
- qemu_put_be32(f, s->cmd_data[i]);
- qemu_put_be32(f, s->row);
- qemu_put_be32(f, s->row_start);
- qemu_put_be32(f, s->row_end);
- qemu_put_be32(f, s->col);
- qemu_put_be32(f, s->col_start);
- qemu_put_be32(f, s->col_end);
- qemu_put_be32(f, s->redraw);
- qemu_put_be32(f, s->remap);
- qemu_put_be32(f, s->mode);
- qemu_put_buffer(f, s->framebuffer, sizeof(s->framebuffer));
-
- qemu_put_be32(f, ss->cs);
-}
-
-static int ssd0323_load(QEMUFile *f, void *opaque, int version_id)
-{
- SSISlave *ss = SSI_SLAVE(opaque);
- ssd0323_state *s = (ssd0323_state *)opaque;
- int i;
-
- if (version_id != 1)
- return -EINVAL;
-
- s->cmd_len = qemu_get_be32(f);
- s->cmd = qemu_get_be32(f);
- for (i = 0; i < 8; i++)
- s->cmd_data[i] = qemu_get_be32(f);
- s->row = qemu_get_be32(f);
- s->row_start = qemu_get_be32(f);
- s->row_end = qemu_get_be32(f);
- s->col = qemu_get_be32(f);
- s->col_start = qemu_get_be32(f);
- s->col_end = qemu_get_be32(f);
- s->redraw = qemu_get_be32(f);
- s->remap = qemu_get_be32(f);
- s->mode = qemu_get_be32(f);
- qemu_get_buffer(f, s->framebuffer, sizeof(s->framebuffer));
-
- ss->cs = qemu_get_be32(f);
-
- return 0;
-}
-
-static int ssd0323_init(SSISlave *dev)
-{
- ssd0323_state *s = FROM_SSI_SLAVE(ssd0323_state, dev);
-
- s->col_end = 63;
- s->row_end = 79;
- s->ds = graphic_console_init(ssd0323_update_display,
- ssd0323_invalidate_display,
- NULL, NULL, s);
- qemu_console_resize(s->ds, 128 * MAGNIFY, 64 * MAGNIFY);
-
- qdev_init_gpio_in(&dev->qdev, ssd0323_cd, 1);
-
- register_savevm(&dev->qdev, "ssd0323_oled", -1, 1,
- ssd0323_save, ssd0323_load, s);
- return 0;
-}
-
-static void ssd0323_class_init(ObjectClass *klass, void *data)
-{
- SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
-
- k->init = ssd0323_init;
- k->transfer = ssd0323_transfer;
- k->cs_polarity = SSI_CS_HIGH;
-}
-
-static const TypeInfo ssd0323_info = {
- .name = "ssd0323",
- .parent = TYPE_SSI_SLAVE,
- .instance_size = sizeof(ssd0323_state),
- .class_init = ssd0323_class_init,
-};
-
-static void ssd03232_register_types(void)
-{
- type_register_static(&ssd0323_info);
-}
-
-type_init(ssd03232_register_types)
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-11 19:44:56 +0000