gwj / at91sam9263 · Commits

Commit 7ac56ff043e82e540a5aa108bba2b44b407dd60b

Authored by pbrook
1 parent 8281db4d

SSD0323 vertical incrememnt mode. 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3696 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 28 additions and 8 deletions
hw/ssd0323.c
  View file @7ac56ff
... ... @@ -30,6 +30,12 @@ do { fprintf(stderr, "ssd0323: error: " fmt , ##args);} while (0)
30 30 /* Scaling factor for pixels. */
31 31 #define MAGNIFY 4
32 32  
  33 +#define REMAP_SWAP_COLUMN 0x01
  34 +#define REMAP_SWAP_NYBBLE 0x02
  35 +#define REMAP_VERTICAL 0x04
  36 +#define REMAP_SWAP_COM 0x10
  37 +#define REMAP_SPLIT_COM 0x40
  38 +
33 39 enum ssd0323_mode
34 40 {
35 41 SSD0323_CMD,
... ... @@ -49,6 +55,7 @@ typedef struct {
49 55 int col_start;
50 56 int col_end;
51 57 int redraw;
  58 + int remap;
52 59 enum ssd0323_mode mode;
53 60 uint8_t framebuffer[128 * 80 / 2];
54 61 } ssd0323_state;
... ... @@ -60,13 +67,24 @@ int ssd0323_xfer_ssi(void *opaque, int data)
60 67 case SSD0323_DATA:
61 68 DPRINTF("data 0x%02x\n", data);
62 69 s->framebuffer[s->col + s->row * 64] = data;
63   - s->col++;
64   - if (s->col > s->col_end) {
  70 + if (s->remap & REMAP_VERTICAL) {
65 71 s->row++;
66   - s->col = s->col_start;
67   - }
68   - if (s->row > s->row_end) {
69   - s->row = s->row_start;
  72 + if (s->row > s->row_end) {
  73 + s->row = s->row_start;
  74 + s->col++;
  75 + }
  76 + if (s->col > s->col_end) {
  77 + s->col = s->col_start;
  78 + }
  79 + } else {
  80 + s->col++;
  81 + if (s->col > s->col_end) {
  82 + s->row++;
  83 + s->col = s->col_start;
  84 + }
  85 + if (s->row > s->row_end) {
  86 + s->row = s->row_start;
  87 + }
70 88 }
71 89 s->redraw = 1;
72 90 break;
... ... @@ -82,12 +100,12 @@ int ssd0323_xfer_ssi(void *opaque, int data)
82 100 #define DATA(x) if (s->cmd_len <= (x)) return 0
83 101 case 0x15: /* Set column. */
84 102 DATA(2);
85   - s->col_start = s->cmd_data[0] % 64;
  103 + s->col = s->col_start = s->cmd_data[0] % 64;
86 104 s->col_end = s->cmd_data[1] % 64;
87 105 break;
88 106 case 0x75: /* Set row. */
89 107 DATA(2);
90   - s->row_start = s->cmd_data[0] % 80;
  108 + s->row = s->row_start = s->cmd_data[0] % 80;
91 109 s->row_end = s->cmd_data[1] % 80;
92 110 break;
93 111 case 0x81: /* Set contrast */
... ... @@ -99,6 +117,7 @@ int ssd0323_xfer_ssi(void *opaque, int data)
99 117 case 0xa0: /* Set remapping. */
100 118 /* FIXME: Implement this. */
101 119 DATA(1);
  120 + s->remap = s->cmd_data[0];
102 121 break;
103 122 case 0xa1: /* Set display start line. */
104 123 case 0xa2: /* Set display offset. */
... ... @@ -207,6 +226,7 @@ static void ssd0323_update_display(void *opaque)
207 226 }
208 227 p += dest_width;
209 228 }
  229 + /* TODO: Implement row/column remapping. */
210 230 dest = s->ds->data;
211 231 for (y = 0; y < 64; y++) {
212 232 line = y;
... ...