25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: dev_malta_lcd.c,v 1.11 2007/06/15 19:11:15 debug Exp $ |
* $Id: dev_malta_lcd.c,v 1.12 2007/06/17 02:05:51 debug Exp $ |
29 |
* |
* |
30 |
* COMMENT: Malta (evbmips) LCD display |
* COMMENT: Malta (evbmips) LCD display |
31 |
* |
* |
32 |
* TODO. This is mostly a dummy device. |
* TODO: Write output to somewhere else, not just as a debug message. |
33 |
*/ |
*/ |
34 |
|
|
35 |
#include <stdio.h> |
#include <stdio.h> |
43 |
#include "memory.h" |
#include "memory.h" |
44 |
#include "misc.h" |
#include "misc.h" |
45 |
|
|
46 |
|
#include "maltareg.h" |
47 |
|
|
48 |
|
|
49 |
#define DEV_MALTA_LCD_LENGTH 0x80 |
#define DEV_MALTA_LCD_LENGTH 0x80 |
50 |
#define MALTA_LCD_TICK_SHIFT 15 |
#define MALTA_LCD_TICK_SHIFT 16 |
51 |
#define LCD_LEN 8 |
#define LCD_LEN 8 |
52 |
|
|
53 |
struct malta_lcd_data { |
struct malta_lcd_data { |
54 |
|
uint64_t base_addr; |
55 |
|
|
56 |
int display_modified; |
int display_modified; |
57 |
unsigned char display[LCD_LEN]; |
unsigned char display[LCD_LEN]; |
58 |
}; |
}; |
70 |
return; |
return; |
71 |
} |
} |
72 |
|
|
73 |
debug("[ malta_lcd: "); |
debug("[ malta_lcd: \""); |
74 |
for (i=0; i<LCD_LEN; i++) |
for (i=0; i<LCD_LEN; i++) |
75 |
if (d->display[i] >= ' ') |
if (d->display[i] >= ' ') |
76 |
debug("%c", d->display[i]); |
debug("%c", d->display[i]); |
77 |
debug(" ]\n"); |
else |
78 |
|
debug("?"); |
79 |
|
debug("\" ]\n"); |
80 |
|
|
81 |
d->display_modified = 0; |
d->display_modified = 0; |
82 |
} |
} |
86 |
{ |
{ |
87 |
struct malta_lcd_data *d = extra; |
struct malta_lcd_data *d = extra; |
88 |
uint64_t idata = 0, odata = 0; |
uint64_t idata = 0, odata = 0; |
89 |
int i; |
int pos; |
90 |
|
|
91 |
if (writeflag == MEM_WRITE) |
if (writeflag == MEM_WRITE) |
92 |
idata = memory_readmax64(cpu, data, len); |
idata = memory_readmax64(cpu, data, len); |
93 |
|
|
94 |
|
relative_addr += d->base_addr; |
95 |
|
|
96 |
switch (relative_addr) { |
switch (relative_addr) { |
97 |
|
|
98 |
case 0x18: |
case MALTA_ASCII_BASE + MALTA_ASCIIPOS0: |
99 |
case 0x20: |
case MALTA_ASCII_BASE + MALTA_ASCIIPOS1: |
100 |
case 0x28: |
case MALTA_ASCII_BASE + MALTA_ASCIIPOS2: |
101 |
case 0x30: |
case MALTA_ASCII_BASE + MALTA_ASCIIPOS3: |
102 |
case 0x38: |
case MALTA_ASCII_BASE + MALTA_ASCIIPOS4: |
103 |
case 0x40: |
case MALTA_ASCII_BASE + MALTA_ASCIIPOS5: |
104 |
case 0x48: |
case MALTA_ASCII_BASE + MALTA_ASCIIPOS6: |
105 |
case 0x50: |
case MALTA_ASCII_BASE + MALTA_ASCIIPOS7: |
106 |
i = (relative_addr - 0x18) / 8; |
pos = (relative_addr - MALTA_ASCII_BASE) / 8; |
107 |
if (writeflag == MEM_WRITE) { |
if (writeflag == MEM_WRITE) { |
108 |
d->display[i] = idata; |
d->display[pos] = idata; |
109 |
d->display_modified = 1; |
d->display_modified = 1; |
110 |
} else |
} else { |
111 |
odata = d->display[i]; |
odata = d->display[pos]; |
112 |
|
} |
113 |
break; |
break; |
114 |
|
|
115 |
default:if (writeflag == MEM_WRITE) { |
default: |
116 |
|
if (writeflag == MEM_WRITE) { |
117 |
fatal("[ malta_lcd: unimplemented write to " |
fatal("[ malta_lcd: unimplemented write to " |
118 |
"offset 0x%x: data=0x%02x ]\n", (int) |
"offset 0x%x: data=0x%02x ]\n", (int) |
119 |
relative_addr, (int)idata); |
relative_addr, (int)idata); |
137 |
CHECK_ALLOCATION(d = malloc(sizeof(struct malta_lcd_data))); |
CHECK_ALLOCATION(d = malloc(sizeof(struct malta_lcd_data))); |
138 |
memset(d, 0, sizeof(struct malta_lcd_data)); |
memset(d, 0, sizeof(struct malta_lcd_data)); |
139 |
|
|
140 |
|
d->base_addr = devinit->addr; |
141 |
|
|
142 |
memory_device_register(devinit->machine->memory, devinit->name, |
memory_device_register(devinit->machine->memory, devinit->name, |
143 |
devinit->addr, DEV_MALTA_LCD_LENGTH, |
devinit->addr, DEV_MALTA_LCD_LENGTH, |
144 |
dev_malta_lcd_access, (void *)d, DM_DEFAULT, NULL); |
dev_malta_lcd_access, (void *)d, DM_DEFAULT, NULL); |