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* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
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* $Id: dev_cons.c,v 1.26 2005/06/26 11:43:48 debug Exp $ |
* $Id: dev_cons.c,v 1.27 2005/07/12 08:49:13 debug Exp $ |
29 |
* |
* |
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* A console device. (Fake, only useful for simple tests.) |
* A simple console device, useful for simple tests. |
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* It is hardwared to the lowest available MIPS hardware IRQ, and only |
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* interrupts CPU 0. |
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* |
* |
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* This device provides memory mapped I/O for a simple console supporting |
* This device provides memory mapped I/O for a simple console supporting |
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* putchar (writing to memory) and getchar (reading from memory), and |
* putchar (writing to memory) and getchar (reading from memory), and |
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#include "console.h" |
#include "console.h" |
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#include "cpu.h" |
#include "cpu.h" |
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#include "device.h" |
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#include "devices.h" |
#include "devices.h" |
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#include "machine.h" |
#include "machine.h" |
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#include "memory.h" |
#include "memory.h" |
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#define CONS_TICK_SHIFT 14 |
#define CONS_TICK_SHIFT 14 |
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struct cons_data { |
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int console_handle; |
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int irq_nr; |
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}; |
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/* |
/* |
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* dev_cons_tick(): |
* dev_cons_tick(): |
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/* |
/* |
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* dev_cons_init(): |
* devinit_cons(): |
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*/ |
*/ |
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int dev_cons_init(struct machine *machine, struct memory *mem, |
int devinit_cons(struct devinit *devinit) |
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uint64_t baseaddr, char *name, int irq_nr) |
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{ |
{ |
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struct cons_data *d; |
struct cons_data *d; |
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char *name2; |
char *name3; |
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size_t nlen; |
size_t nlen; |
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d = malloc(sizeof(struct cons_data)); |
d = malloc(sizeof(struct cons_data)); |
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exit(1); |
exit(1); |
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} |
} |
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memset(d, 0, sizeof(struct cons_data)); |
memset(d, 0, sizeof(struct cons_data)); |
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d->irq_nr = irq_nr; |
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d->console_handle = console_start_slave(machine, name); |
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nlen = strlen(name) + 20; |
nlen = strlen(devinit->name) + 10; |
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name2 = malloc(nlen); |
if (devinit->name2 != NULL) |
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if (name2 == NULL) { |
nlen += strlen(devinit->name2) + 10; |
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name3 = malloc(nlen); |
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if (name3 == NULL) { |
136 |
fprintf(stderr, "out of memory in dev_cons_init()\n"); |
fprintf(stderr, "out of memory in dev_cons_init()\n"); |
137 |
exit(1); |
exit(1); |
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} |
} |
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if (name != NULL && name[0]) |
if (devinit->name2 != NULL && devinit->name2[0]) |
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snprintf(name2, nlen, "cons [%s]", name); |
snprintf(name3, nlen, "%s [%s]", devinit->name, devinit->name2); |
141 |
else |
else |
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snprintf(name2, nlen, "cons"); |
snprintf(name3, nlen, "%s", devinit->name); |
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144 |
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d->irq_nr = devinit->irq_nr; |
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d->console_handle = console_start_slave(devinit->machine, name3); |
146 |
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memory_device_register(mem, name2, baseaddr, DEV_CONS_LENGTH, |
memory_device_register(devinit->machine->memory, name3, |
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dev_cons_access, d, MEM_DEFAULT, NULL); |
devinit->addr, DEV_CONS_LENGTH, dev_cons_access, d, |
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machine_add_tickfunction(machine, dev_cons_tick, d, CONS_TICK_SHIFT); |
MEM_DEFAULT, NULL); |
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machine_add_tickfunction(devinit->machine, dev_cons_tick, |
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d, CONS_TICK_SHIFT); |
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return d->console_handle; |
devinit->return_ptr = d; |
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return 1; |
155 |
} |
} |
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