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cleanup

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Polprzewodnikowy 2022-01-11 22:13:23 +01:00
parent dc71f45df6
commit c7b6e8552e
6 changed files with 77 additions and 131 deletions
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4
sw/n64/src/boot.c
View File

@ -1,6 +1,5 @@
#include "boot.h"
#include "crc32.h"
#include "sc64.h"
#include "sys.h"
@ -58,7 +57,6 @@ bool boot_get_tv_type (boot_info_t *info) {
break;
default:
LOG_E("Unknown region: [0x%02X]\r\n", region);
return false;
}
@ -87,8 +85,6 @@ bool boot_get_cic_seed_version (boot_info_t *info) {
}
}
LOG_E("Unknown IPL3 CRC32: [0x%08lX]\r\n", crc32);
return false;
}

105
sw/n64/src/exception.c
View File

@ -5,11 +5,50 @@
#include "sys.h"
typedef union {
uint64_t u64;
struct {
uint32_t u32_h;
uint32_t u32;
};
} uint64_32_t;
typedef struct {
uint64_t gpr[32];
uint64_32_t zr;
uint64_32_t at;
uint64_32_t v0;
uint64_32_t v1;
uint64_32_t a0;
uint64_32_t a1;
uint64_32_t a2;
uint64_32_t a3;
uint64_32_t t0;
uint64_32_t t1;
uint64_32_t t2;
uint64_32_t t3;
uint64_32_t t4;
uint64_32_t t5;
uint64_32_t t6;
uint64_32_t t7;
uint64_32_t s0;
uint64_32_t s1;
uint64_32_t s2;
uint64_32_t s3;
uint64_32_t s4;
uint64_32_t s5;
uint64_32_t s6;
uint64_32_t s7;
uint64_32_t t8;
uint64_32_t t9;
uint64_32_t k0;
uint64_32_t k1;
uint64_32_t gp;
uint64_32_t sp;
uint64_32_t fp;
uint64_32_t ra;
uint32_t sr;
uint32_t cr;
uint64_t epc;
uint64_32_t epc;
} exception_t;
@ -18,11 +57,13 @@ typedef struct {
#define INTERRUPT_MASK_TIMER (1 << 7)
#define SYSCALL_CODE_MASK (0x03FF0000UL)
#define SYSCALL_CODE_BIT (16)
#define SYSCALL_CODE_MASK (0x03FFFFC0UL)
#define SYSCALL_CODE_BIT (6)
#define SCREEN_WIDTH (640)
#define SCREEN_HEIGHT (240)
#define BORDER_WIDTH (32)
#define BORDER_HEIGHT (8)
#define BACKGROUND_COLOR (0x000000FFUL)
#define FOREGROUND_COLOR (0xFFFFFFFFUL)
@ -95,7 +136,7 @@ static void exception_draw_character (int x, int y, char c) {
int c_x = x + (i % FONT_WIDTH);
int c_y = y + (i / FONT_WIDTH);
if ((c_x >= SCREEN_WIDTH) || (c_y >= SCREEN_HEIGHT)) {
if ((c_x >= (SCREEN_WIDTH - BORDER_WIDTH)) || (c_y >= (SCREEN_HEIGHT - BORDER_HEIGHT))) {
break;
}
@ -114,7 +155,7 @@ static void exception_print_string (int x, int y, const char *s) {
}
static void exception_print (int *x, int *y, const char* fmt, ...) {
char line[128];
char line[80];
va_list args;
va_start(args, fmt);
@ -152,32 +193,28 @@ static const char *exception_get_description (uint8_t exception_code) {
void exception_fatal_handler (uint32_t exception_code, uint32_t interrupt_mask, exception_t *e) {
uint32_t sc64_version = pi_io_read(&SC64->VERSION);
uint32_t *instruction_address = (uint32_t *) ((uint32_t) (e->epc));
uint32_t gpr32[32];
int x = 12;
int y = 8;
if (e->cr & C0_CR_BD) {
instruction_address += 1;
}
for (int i = 0; i < 32; i++) {
gpr32[i] = (uint32_t) (e->gpr[i]);
}
uint32_t *instruction_address = (((uint32_t *) (e->epc.u32)) + ((e->cr & C0_CR_BD) ? 1 : 0));
int x = BORDER_WIDTH;
int y = BORDER_HEIGHT;
exception_init_screen();
exception_print(&x, &y, "SC64 VERSION: 0x%08lX (%4s)", sc64_version, (char *) (&sc64_version));
exception_print(&x, &y, "%s at pc: 0x%08lX", exception_get_description(exception_code), (uint32_t) (e->epc));
exception_print(&x, &y, "%s at pc: 0x%08lX", exception_get_description(exception_code), e->epc.u32);
exception_print(&x, &y, "");
exception_print(&x, &y, "sr: 0x%08lX, cr: 0x%08lX", e->sr, e->cr);
exception_print(&x, &y, "zr: 0x%08lX, at: 0x%08lX, v0: 0x%08lX, v1: 0x%08lX", gpr32[0], gpr32[1], gpr32[2], gpr32[3]);
exception_print(&x, &y, "a0: 0x%08lX, a1: 0x%08lX, a2: 0x%08lX, a3: 0x%08lX", gpr32[4], gpr32[5], gpr32[6], gpr32[7]);
exception_print(&x, &y, "t0: 0x%08lX, t1: 0x%08lX, t2: 0x%08lX, t3: 0x%08lX", gpr32[8], gpr32[9], gpr32[10], gpr32[11]);
exception_print(&x, &y, "t4: 0x%08lX, t5: 0x%08lX, t6: 0x%08lX, t7: 0x%08lX", gpr32[12], gpr32[13], gpr32[14], gpr32[15]);
exception_print(&x, &y, "s0: 0x%08lX, s1: 0x%08lX, s2: 0x%08lX, s3: 0x%08lX", gpr32[16], gpr32[17], gpr32[18], gpr32[19]);
exception_print(&x, &y, "s4: 0x%08lX, s5: 0x%08lX, s6: 0x%08lX, s7: 0x%08lX", gpr32[20], gpr32[21], gpr32[22], gpr32[23]);
exception_print(&x, &y, "t8: 0x%08lX, t9: 0x%08lX, k0: 0x%08lX, k1: 0x%08lX", gpr32[24], gpr32[25], gpr32[26], gpr32[27]);
exception_print(&x, &y, "gp: 0x%08lX, sp: 0x%08lX, fp: 0x%08lX, ra: 0x%08lX", gpr32[28], gpr32[29], gpr32[30], gpr32[31]);
exception_print(&x, &y, "zr: 0x%08lX, at: 0x%08lX, v0: 0x%08lX, v1: 0x%08lX", e->zr.u32, e->at.u32, e->v0.u32, e->v1.u32);
exception_print(&x, &y, "a0: 0x%08lX, a1: 0x%08lX, a2: 0x%08lX, a3: 0x%08lX", e->a0.u32, e->a1.u32, e->a2.u32, e->a3.u32);
exception_print(&x, &y, "t0: 0x%08lX, t1: 0x%08lX, t2: 0x%08lX, t3: 0x%08lX", e->t0.u32, e->t1.u32, e->t2.u32, e->t3.u32);
exception_print(&x, &y, "t4: 0x%08lX, t5: 0x%08lX, t6: 0x%08lX, t7: 0x%08lX", e->t4.u32, e->t5.u32, e->t6.u32, e->t7.u32);
exception_print(&x, &y, "s0: 0x%08lX, s1: 0x%08lX, s2: 0x%08lX, s3: 0x%08lX", e->s0.u32, e->s1.u32, e->s2.u32, e->s3.u32);
exception_print(&x, &y, "s4: 0x%08lX, s5: 0x%08lX, s6: 0x%08lX, s7: 0x%08lX", e->s4.u32, e->s5.u32, e->s6.u32, e->s7.u32);
exception_print(&x, &y, "t8: 0x%08lX, t9: 0x%08lX, k0: 0x%08lX, k1: 0x%08lX", e->t8.u32, e->t9.u32, e->k0.u32, e->k1.u32);
exception_print(&x, &y, "gp: 0x%08lX, sp: 0x%08lX, fp: 0x%08lX, ra: 0x%08lX", e->gp.u32, e->sp.u32, e->fp.u32, e->ra.u32);
exception_print(&x, &y, "");
exception_print(&x, &y, "0x%08lX: 0x%08lX = [%4s]", (uint32_t) (&SC64->VERSION), sc64_version, (char *) (&sc64_version));
exception_print(&x, &y, "");
exception_print(&x, &y, "------------------------------------------------------------------------");
exception_print(&x, &y, "");
if (exception_code == EXCEPTION_INTERRUPT) {
if (interrupt_mask & INTERRUPT_MASK_TIMER) {
@ -187,15 +224,15 @@ void exception_fatal_handler (uint32_t exception_code, uint32_t interrupt_mask,
uint32_t code = (((*instruction_address) & SYSCALL_CODE_MASK) >> SYSCALL_CODE_BIT);
if (code == TRIGGER_CODE_ERROR) {
const char *message = (const char *) (gpr32[4]);
const char *message = (const char *) (e->a0.u32);
exception_print(&x, &y, "%s", message);
} else if (code == TRIGGER_CODE_ASSERT) {
const char *file = (const char *) (gpr32[4]);
int line = (int) (gpr32[5]);
const char *func = (const char *) (gpr32[6]);
const char *failedexpr = (const char *) (gpr32[7]);
const char *file = (const char *) (e->a0.u32);
int line = (int) (e->a1.u32);
const char *func = (const char *) (e->a2.u32);
const char *failedexpr = (const char *) (e->a3.u32);
exception_print(&x, &y, "assertion \"%s\" failed:", failedexpr);
exception_print(&x, &y, "Assertion \"%s\" failed:", failedexpr);
exception_print(&x, &y, " file \"%s\", line %d, %s%s", file, line, func ? "function: " : "", func);
}
}

3
sw/n64/src/interrupt.c
View File

@ -2,8 +2,5 @@
void exception_interrupt_handler (uint32_t exception_code, uint32_t interrupt_mask) {
LOG_I("Unimplemented interrupt, mask: 0x%08lX\r\n", interrupt_mask);
LOG_FLUSH();
while (1);
}

13
sw/n64/src/sc64.h
View File

@ -8,19 +8,6 @@
#include "sys.h"
#ifdef DEBUG
#include <assert.h>
#define LOG_I(args...) {iprintf("\033[32m"); iprintf(args); iprintf("\033[0m");}
#define LOG_E(args...) {iprintf("\033[31m"); iprintf(args); iprintf("\033[0m");}
#define LOG_FLUSH() {fflush(stdout);}
#else
#define LOG_I(args...)
#define LOG_E(args...)
#define LOG_FLUSH()
#define assert(expr)
#endif
#define SC64_CMD_CONFIG ('C')
#define SC64_CMD_QUERY ('Q')
#define SC64_CMD_DEBUG_RX_DATA ('E')

38
sw/n64/src/storage.c
View File

@ -1,40 +1,13 @@
#include "storage.h"
#include <assert.h>
#include "error.h"
#include "sc64.h"
#include "storage.h"
#include "fatfs/ff.h"
#ifdef DEBUG
static const char *fatfs_error_codes[] = {
"(0) Succeeded",
"(1) A hard error occurred in the low level disk I/O layer",
"(2) Assertion failed",
"(3) The physical drive cannot work",
"(4) Could not find the file",
"(5) Could not find the path",
"(6) The path name format is invalid",
"(7) Access denied due to prohibited access or directory full",
"(8) Access denied due to prohibited access",
"(9) The file/directory object is invalid",
"(10) The physical drive is write protected",
"(11) The logical drive number is invalid",
"(12) The volume has no work area",
"(13) There is no valid FAT volume",
"(14) The f_mkfs() aborted due to any problem",
"(15) Could not get a grant to access the volume within defined period",
"(16) The operation is rejected according to the file sharing policy",
"(17) LFN working buffer could not be allocated",
"(18) Number of open files > FF_FS_LOCK",
"(19) Given parameter is invalid",
};
#endif
#define FF_CHECK(x) { \
FRESULT fatfs_result = x; \
if (fatfs_result) { \
LOG_E("fatfs error \"%s\" at [%s:%d] in expr: %s\r\n", fatfs_error_codes[fatfs_result], __FILE__, __LINE__, #x); \
while (1); \
} \
assert(fatfs_result == FR_OK); \
}
@ -49,8 +22,7 @@ void storage_run_menu (storage_backend_t storage_backend, boot_info_t *boot_info
FF_CHECK(f_mount(&fs, "1:", 1));
FF_CHECK(f_chdrive("1:"));
} else {
LOG_E("Unknown storage backend %d\r\n", storage_backend);
while (1);
error_display("Unknown storage backend");
}
FF_CHECK(f_open(&fil, "sc64menu.elf", FA_READ));

43
sw/n64/src/syscalls.c
View File

@ -1,44 +1,12 @@
#include <errno.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "exception.h"
#include "sc64.h"
extern char _sheap __attribute__((section(".data")));
extern char _eheap __attribute__((section(".data")));
int _close_r (struct _reent *prt, int fd) {
errno = ENOSYS;
return -1;
}
int _fstat_r (struct _reent *prt, int fd, struct stat *pstat) {
errno = ENOSYS;
return -1;
}
int _isatty_r (struct _reent *prt, int fd) {
if (fd == STDIN_FILENO || fd == STDOUT_FILENO || fd == STDERR_FILENO) {
return 1;
}
errno = EBADF;
return 0;
}
off_t _lseek_r (struct _reent *prt, int fd, off_t pos, int whence) {
errno = ENOSYS;
return -1;
}
ssize_t _read_r (struct _reent *prt, int fd, void *buf, size_t cnt) {
errno = ENOSYS;
return -1;
}
caddr_t _sbrk_r (struct _reent *prt, ptrdiff_t incr) {
static char *curr_heap_end = &_sheap;
char *prev_heap_end;
@ -54,17 +22,6 @@ caddr_t _sbrk_r (struct _reent *prt, ptrdiff_t incr) {
return (caddr_t) prev_heap_end;
}
ssize_t _write_r (struct _reent *prt, int fd, const void *buf, size_t cnt) {
if (fd == STDIN_FILENO) {
errno = EBADF;
return -1;
} else if (fd == STDOUT_FILENO || fd == STDERR_FILENO) {
sc64_debug_write(SC64_DEBUG_ID_TEXT, buf, cnt);
return cnt;
}
errno = ENOSYS;
return -1;
}
void __assert_func (const char *file, int line, const char *func, const char *failedexpr) {
EXCEPTION_TRIGGER(TRIGGER_CODE_ASSERT);