X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=ccdbg-command.c;h=38c006cb99c4ee303493b5baa59f75ad2211ebe0;hp=3e42d48e2dd8066bd890c4e80482b75ef9d81845;hb=55995515b9d4fc1e193039eab697c5d03db417c2;hpb=0ffe4ef870b0e564789a1990aeab5b6651868e5b

diff --git a/ccdbg-command.c b/ccdbg-command.c
index 3e42d48e..38c006cb 100644
--- a/ccdbg-command.c
+++ b/ccdbg-command.c
@@ -19,21 +19,44 @@
 #include "ccdbg.h"
 
 void
-ccdbg_reset(struct ccdbg *dbg)
+ccdbg_debug_mode(struct ccdbg *dbg)
 {
 	/* force two rising clocks while holding RESET_N low */
-	ccdbg_clock_1_0(dbg);
-	cccp_write(dbg, CC_RESET_N, 0);
-	ccdbg_clock_0_1(dbg);
-	ccdbg_clock_1_0(dbg);
-	ccdbg_clock_0_1(dbg);
-	cccp_write(dbg, CC_RESET_N, CC_RESET_N);
+	ccdbg_debug(CC_DEBUG_COMMAND, "#\n");
+	ccdbg_debug(CC_DEBUG_COMMAND, "# Debug mode\n");
+	ccdbg_debug(CC_DEBUG_COMMAND, "#\n");
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA|CC_RESET_N);
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N,          CC_DATA           );
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA           );
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N,          CC_DATA           );
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA           );
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N,          CC_DATA|CC_RESET_N);
+}
+
+void
+ccdbg_reset(struct ccdbg *dbg)
+{
+	ccdbg_debug(CC_DEBUG_COMMAND, "#\n");
+	ccdbg_debug(CC_DEBUG_COMMAND, "# Reset\n");
+	ccdbg_debug(CC_DEBUG_COMMAND, "#\n");
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA|CC_RESET_N);
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA           );
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA           );
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA           );
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA           );
+	ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA|CC_RESET_N);
 }
 
 uint8_t
-ccdbg_read_status(struct ccdbg *dbg)
+ccdbg_chip_erase(struct ccdbg *dbg)
 {
-	return ccdbg_cmd_write_read8(dbg, CC_READ_STATUS, NULL, 0);
+	return ccdbg_cmd_write_read8(dbg, CC_CHIP_ERASE, NULL, 0);
+}
+
+uint8_t
+ccdbg_wr_config(struct ccdbg *dbg, uint8_t config)
+{
+	return ccdbg_cmd_write_read8(dbg, CC_WR_CONFIG, &config, 1);
 }
 
 uint8_t
@@ -41,3 +64,119 @@ ccdbg_rd_config(struct ccdbg *dbg)
 {
 	return ccdbg_cmd_write_read8(dbg, CC_RD_CONFIG, NULL, 0);
 }
+
+uint16_t
+ccdbg_get_pc(struct ccdbg *dbg)
+{
+	return ccdbg_cmd_write_read16(dbg, CC_GET_PC, NULL, 0);
+}
+
+uint8_t
+ccdbg_read_status(struct ccdbg *dbg)
+{
+	return ccdbg_cmd_write_read8(dbg, CC_READ_STATUS, NULL, 0);
+}
+
+uint8_t
+ccdbg_set_hw_brkpnt(struct ccdbg *dbg, uint8_t number, uint8_t enable, uint16_t addr)
+{
+	uint8_t	data[3];
+
+	data[0] = (number << 3) | (enable << 2);
+	data[1] = (addr >> 8);
+	data[2] = addr;
+	return ccdbg_cmd_write_read8(dbg, CC_SET_HW_BRKPNT, data, 3);
+}
+
+uint8_t
+ccdbg_halt(struct ccdbg *dbg)
+{
+	return ccdbg_cmd_write_read8(dbg, CC_HALT, NULL, 0);
+}
+
+uint8_t
+ccdbg_resume(struct ccdbg *dbg)
+{
+	return ccdbg_cmd_write_read8(dbg, CC_RESUME, NULL, 0);
+}
+
+uint8_t
+ccdbg_debug_instr(struct ccdbg *dbg, uint8_t *instr, int nbytes)
+{
+	return ccdbg_cmd_write_read8(dbg, CC_DEBUG_INSTR(nbytes), instr, nbytes);
+}
+
+uint8_t
+ccdbg_step_instr(struct ccdbg *dbg)
+{
+	return ccdbg_cmd_write_read8(dbg, CC_STEP_INSTR, NULL, 0);
+}
+
+uint8_t
+ccdbg_step_replace(struct ccdbg *dbg, uint8_t *instr, int nbytes)
+{
+	return ccdbg_cmd_write_read8(dbg, CC_STEP_REPLACE(nbytes), instr, nbytes);
+}
+
+uint16_t
+ccdbg_get_chip_id(struct ccdbg *dbg)
+{
+	return ccdbg_cmd_write_read16(dbg, CC_GET_CHIP_ID, NULL, 0);
+}
+
+/*
+ * Execute a sequence of instructions
+ */
+uint8_t
+ccdbg_execute(struct ccdbg *dbg, uint8_t *inst)
+{
+	uint8_t status = 0;
+	while(inst[0] != 0) {
+		uint8_t	len = inst[0];
+		int i;
+		ccdbg_debug(CC_DEBUG_INSTRUCTIONS, "\t%02x", inst[1]);
+		for (i = 0; i < len - 1; i++)
+			ccdbg_debug(CC_DEBUG_INSTRUCTIONS, " %02x", inst[i+2]);
+		status = ccdbg_debug_instr(dbg, inst+1, len);
+		for (; i < 3; i++)
+			ccdbg_debug(CC_DEBUG_INSTRUCTIONS, "   ");
+		ccdbg_debug(CC_DEBUG_INSTRUCTIONS, " -> %02x\n", status);
+		inst += len + 1;
+	}
+	return status;
+}
+
+static uint8_t jump_mem[] = {
+	3, LJMP, 0xf0, 0x00,
+#define PC_HIGH	2
+#define PC_LOW	3
+	0
+};
+
+uint8_t
+ccdbg_set_pc(struct ccdbg *dbg, uint16_t pc)
+{
+	jump_mem[PC_HIGH] = pc >> 8;
+	jump_mem[PC_LOW] = pc & 0xff;
+	return ccdbg_execute(dbg, jump_mem);
+}
+
+uint8_t
+ccdbg_execute_hex_image(struct ccdbg *dbg, struct hex_image *image)
+{
+	uint16_t pc;
+	uint8_t status;
+	
+	if (image->address < 0xf000) {
+		fprintf(stderr, "Cannot execute program starting at 0x%04x\n", image->address);
+		return -1;
+	}
+	ccdbg_write_hex_image(dbg, image, 0);
+	ccdbg_set_pc(dbg, image->address);
+	pc = ccdbg_get_pc(dbg);
+	printf ("pc starts at 0x%04x\n", pc);
+	status = ccdbg_resume(dbg);
+	printf ("resume status: 0x%02x\n", status);
+	return 0;
+}
+