Add hd option for jtag and 3-wire mode

Fix issue #161

Author: bvernoux

src/hydrabus/commands.c

@@ -1163,6 +1163,11 @@ t_token tokens_mode_jtag[] = {
 		.flags = T_FLAG_SUFFIX_TOKEN_DELIM_INT,
 		.help = "Read byte (repeat with :<num>)"
 	},
+	{
+		T_HD,
+		.flags = T_FLAG_SUFFIX_TOKEN_DELIM_INT,
+		.help = "Read byte (repeat with :<num>) and print hexdump"
+	},
 	{
 		T_WRITE,
 		.flags = T_FLAG_SUFFIX_TOKEN_DELIM_INT,
@@ -1569,6 +1574,11 @@ t_token tokens_mode_threewire[] = {
 		.flags = T_FLAG_SUFFIX_TOKEN_DELIM_INT,
 		.help = "Read byte (repeat with :<num>)"
 	},
+	{
+		T_HD,
+		.flags = T_FLAG_SUFFIX_TOKEN_DELIM_INT,
+		.help = "Read byte (repeat with :<num>) and print hexdump"
+	},
 	{
 		T_WRITE,
 		.flags = T_FLAG_SUFFIX_TOKEN_DELIM_INT,

src/hydrabus/hydrabus_mode.c

@@ -488,7 +488,7 @@ static int hydrabus_mode_hexdump(t_hydra_console *con, t_tokenline_parsed *p,
 			to_rx = (count-bytes_read);
 		}
 
-		if(con->mode->exec->read != NULL) {
+		if(con->mode->exec->dump != NULL) {
 			mode_status = con->mode->exec->dump(con, p_proto->buffer_rx, to_rx);
 		}
 		if (mode_status == HYDRABUS_MODE_STATUS_OK) {

src/hydrabus/hydrabus_mode_jtag.c

@@ -959,6 +959,18 @@ static uint32_t read(t_hydra_console *con, uint8_t *rx_data, uint8_t nb_data)
 	return BSP_OK;
 }
 
+static uint32_t dump(t_hydra_console *con, uint8_t *rx_data, uint8_t nb_data)
+{
+	uint8_t i;
+
+	i = 0;
+	while(i < nb_data) {
+		rx_data[i] = jtag_read_u8(con);
+		i++;
+	}
+	return BSP_OK;
+}
+
 static void cleanup(t_hydra_console *con)
 {
 	jtag_pin_deinit(con);
@@ -990,6 +1002,7 @@ const mode_exec_t mode_jtag_exec = {
 	.exec = &exec,
 	.write = &write,
 	.read = &read,
+	.dump = &dump,
 	.cleanup = &cleanup,
 	.get_prompt = &get_prompt,
 	.clkl = &clkl,