#include "ccdbg.h"
#include <time.h>
-
-void
-ccdbg_half_clock(struct ccdbg *dbg)
-{
- struct timespec req, rem;
- req.tv_sec = (CC_CLOCK_US / 2) / 1000000;
- req.tv_nsec = ((CC_CLOCK_US / 2) % 1000000) * 1000;
- nanosleep(&req, &rem);
-}
+#include "cc-usb.h"
+#include "cc-bitbang.h"
struct ccdbg *
ccdbg_open(void)
{
struct ccdbg *dbg;
+ char *tty;
dbg = calloc(sizeof (struct ccdbg), 1);
if (!dbg) {
perror("calloc");
return NULL;
}
- dbg->cp = cp_usb_open ();
- if (!dbg->cp) {
- free (dbg);
- return NULL;
+ tty = getenv("CCDBG_TTY");
+ if (!tty || tty[0] == '/')
+ dbg->usb = cc_usb_open(tty);
+ if (!dbg->usb) {
+ dbg->bb = cc_bitbang_open();
+ if (!dbg->bb) {
+ free(dbg);
+ return NULL;
+ }
}
return dbg;
}
void
ccdbg_close(struct ccdbg *dbg)
{
- cp_usb_close(dbg->cp);
+ if (dbg->usb)
+ cc_usb_close(dbg->usb);
+ if (dbg->bb)
+ cc_bitbang_close(dbg->bb);
free (dbg);
}
-int
-ccdbg_write(struct ccdbg *dbg, uint8_t mask, uint8_t value)
-{
- cp_usb_write(dbg->cp, mask, value);
- return 0;
-}
-
-uint8_t
-ccdbg_read(struct ccdbg *dbg)
-{
- return cp_usb_read(dbg->cp);
-}
-
-static char
-is_bit(uint8_t get, uint8_t mask, char on, uint8_t bit)
-{
- if (mask&bit) {
- if (get&bit)
- return on;
- else
- return '.';
- } else
- return '-';
-}
-void
-ccdbg_print(char *format, uint8_t mask, uint8_t set)
-{
- ccdbg_debug (CC_DEBUG_BITBANG, format,
- is_bit(set, mask, 'C', CC_CLOCK),
- is_bit(set, mask, 'D', CC_DATA),
- is_bit(set, mask, 'R', CC_RESET_N));
-}
-
-void
-ccdbg_send(struct ccdbg *dbg, uint8_t mask, uint8_t set)
-{
- ccdbg_write(dbg, mask, set);
- ccdbg_print("%c %c %c\n", mask, set);
- ccdbg_half_clock(dbg);
-}
-
void
-ccdbg_send_bit(struct ccdbg *dbg, uint8_t bit)
+ccdbg_debug_mode(struct ccdbg *dbg)
{
- if (bit) bit = CC_DATA;
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|bit|CC_RESET_N);
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, bit|CC_RESET_N);
+ if (dbg->usb)
+ cc_usb_debug_mode(dbg->usb);
+ else if (dbg->bb)
+ cc_bitbang_debug_mode(dbg->bb);
}
void
-ccdbg_send_byte(struct ccdbg *dbg, uint8_t byte)
+ccdbg_reset(struct ccdbg *dbg)
{
- int bit;
- ccdbg_debug(CC_DEBUG_BITBANG, "#\n# Send Byte 0x%02x\n#\n", byte);
- for (bit = 7; bit >= 0; bit--) {
- ccdbg_send_bit(dbg, (byte >> bit) & 1);
- if (bit == 3)
- ccdbg_debug(CC_DEBUG_BITBANG, "\n");
- }
+ if (dbg->usb)
+ cc_usb_reset(dbg->usb);
+ else if (dbg->bb)
+ cc_bitbang_reset(dbg->bb);
}
void
ccdbg_send_bytes(struct ccdbg *dbg, uint8_t *bytes, int nbytes)
{
- while (nbytes--)
- ccdbg_send_byte(dbg, *bytes++);
-}
-
-uint8_t
-ccdbg_recv_bit(struct ccdbg *dbg, int first)
-{
- uint8_t mask = first ? CC_DATA : 0;
- uint8_t read;
-
- ccdbg_send(dbg, CC_CLOCK|mask|CC_RESET_N, CC_CLOCK|CC_DATA|CC_RESET_N);
- read = ccdbg_read(dbg);
- ccdbg_send(dbg, CC_CLOCK| CC_RESET_N, CC_RESET_N);
- return (read & CC_DATA) ? 1 : 0;
+ if (dbg->usb)
+ cc_usb_send_bytes(dbg->usb, bytes, nbytes);
+ else if (dbg->bb)
+ cc_bitbang_send_bytes(dbg->bb, bytes, nbytes);
}
-uint8_t
-ccdbg_recv_byte(struct ccdbg *dbg, int first)
+void
+ccdbg_recv_bytes(struct ccdbg *dbg, uint8_t *bytes, int nbytes)
{
- uint8_t byte = 0;
- int bit;
-
- ccdbg_debug(CC_DEBUG_BITBANG, "#\n# Recv byte\n#\n");
- for (bit = 0; bit < 8; bit++) {
- byte = byte << 1;
- byte |= ccdbg_recv_bit(dbg, first);
- if (bit == 3)
- ccdbg_debug(CC_DEBUG_BITBANG, "\n");
- first = 0;
- }
- ccdbg_debug(CC_DEBUG_BITBANG, "#\n# Recv 0x%02x\n#\n", byte);
- return byte;
+ if (dbg->usb)
+ cc_usb_recv_bytes(dbg->usb, bytes, nbytes);
+ else if (dbg->bb)
+ cc_bitbang_recv_bytes(dbg->bb, bytes, nbytes);
}
void
-ccdbg_recv_bytes(struct ccdbg *dbg, uint8_t *bytes, int nbytes)
+ccdbg_sync(struct ccdbg *dbg)
{
- int first = 1;
- while (nbytes--) {
- *bytes++ = ccdbg_recv_byte(dbg, first);
- first = 0;
- }
+ if (dbg->usb)
+ cc_usb_sync(dbg->usb);
+ else if (dbg->bb)
+ cc_bitbang_sync(dbg->bb);
}
void
ccdbg_cmd_write(struct ccdbg *dbg, uint8_t cmd, uint8_t *data, int len)
{
- int i;
- ccdbg_send_byte(dbg, cmd);
- for (i = 0; i < len; i++)
- ccdbg_send_byte(dbg, data[i]);
+ ccdbg_send_bytes(dbg, &cmd, 1);
+ ccdbg_send_bytes(dbg, data, len);
}
uint8_t
uint8_t byte[1];
ccdbg_cmd_write(dbg, cmd, data, len);
ccdbg_recv_bytes(dbg, byte, 1);
+ ccdbg_sync(dbg);
return byte[0];
}
uint8_t byte[2];
ccdbg_cmd_write(dbg, cmd, data, len);
ccdbg_recv_bytes(dbg, byte, 2);
+ ccdbg_sync(dbg);
return (byte[0] << 8) | byte[1];
}
+
+void
+ccdbg_cmd_write_queue8(struct ccdbg *dbg, uint8_t cmd,
+ uint8_t *data, int len,
+ uint8_t *reply)
+{
+ ccdbg_cmd_write(dbg, cmd, data, len);
+ ccdbg_recv_bytes(dbg, reply, 1);
+}
projects / fw / altos / blobdiff