Add flash writing code.

[fw/altos] / ccdbg-command.c

diff --git a/ccdbg-command.c b/ccdbg-command.c
index 3e42d48e2dd8066bd890c4e80482b75ef9d81845..38c006cb99c4ee303493b5baa59f75ad2211ebe0 100644 (file)
--- 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;
+}
+