Add missing files

controller/fw/src/mspdebug_wrapper.c

@@ -0,0 +1,213 @@
+
+#include <unistd.h>
+#include <errno.h>
+
+#include <libopencm3/stm32/gpio.h>
+
+#include "output.h"
+#include "jtaglib.h"
+
+#include "sr_global.h"
+#include "mspdebug_wrapper.h"
+
+#define BLOCK_SIZE 512 /* bytes */
+
+
+static struct jtdev sr_jtdev;
+
+
+int flash_and_reset(size_t img_start, size_t img_len, ssize_t (*read_block)(int addr, size_t len, uint8_t *out))
+{
+	union {
+		uint8_t bytes[BLOCK_SIZE];
+		uint16_t words[BLOCK_SIZE/2];
+	} block;
+
+	/* Initialize JTAG connection */
+	unsigned int jtag_id = jtag_init(&sr_jtdev);
+
+	if (sr_jtdev.failed)
+		return -EPIPE;
+
+	if (jtag_id != 0x89 && jtag_id != 0x91)
+		return -EINVAL;
+
+	/* Clear flash */
+	jtag_erase_flash(&sr_jtdev, JTAG_ERASE_MAIN, 0);
+	if (sr_jtdev.failed)
+		return -EPIPE;
+
+	/* Write flash */
+	for (size_t p = img_start; p < img_start + img_len; p += BLOCK_SIZE) {
+		ssize_t nin = read_block(p, BLOCK_SIZE, block.bytes);
+
+		if (nin < 0)
+			return nin;
+
+		if (nin & 1) { /* pad unaligned */
+			block.bytes[nin] = 0;
+			nin ++;
+		}
+		
+		/* Convert to little-endian */
+		for (ssize_t i=0; i<nin/2; i++)
+			block.words[i] = htole(block.words[i]);
+
+		jtag_write_flash(&sr_jtdev, p, nin/2, block.words);
+		if (sr_jtdev.failed)
+			return -EPIPE;
+	}
+
+	/* Verify flash */
+	/* FIXME
+	word = jtag_read_mem(NULL, 16, addr+index );
+	*/
+
+	/* Execute power on reset */
+	jtag_execute_puc(&sr_jtdev);
+	if (sr_jtdev.failed)
+		return -EPIPE;
+
+	return 0;
+}
+
+/* mspdebug HAL shim */
+
+int printc_err(const char *fmt, ...) {
+	UNUSED(fmt);
+	/* ignore */
+    return 0;
+}
+
+
+static void sr_jtdev_power_on(struct jtdev *p) {
+    UNUSED(p);
+	/* ignore */
+}
+
+static void sr_jtdev_connect(struct jtdev *p) {
+    UNUSED(p);
+	/* ignore */
+}
+
+enum sr_gpio_types {
+	SR_GPIO_TCK,
+	SR_GPIO_TMS,
+	SR_GPIO_TDI,
+	SR_GPIO_RST,
+	SR_GPIO_TST,
+	SR_GPIO_TDO,
+	SR_NUM_GPIOS
+};
+
+struct {
+	uint32_t port;
+	uint16_t num;
+} gpios[SR_NUM_GPIOS] = {
+	[SR_GPIO_TCK] = {GPIOD, 8},
+	[SR_GPIO_TMS] = {GPIOD, 9},
+	[SR_GPIO_TDI] = {GPIOD, 10},
+	[SR_GPIO_RST] = {GPIOD, 11},
+	[SR_GPIO_TST] = {GPIOD, 12},
+	[SR_GPIO_TDO] = {GPIOD, 13},
+};
+
+static void sr_gpio_write(int num, int out) {
+	if (out)
+		gpio_set(gpios[num].port, gpios[num].num);
+	else
+		gpio_clear(gpios[num].port, gpios[num].num);
+}
+
+static void sr_jtdev_tck(struct jtdev *p, int out) {
+	UNUSED(p);
+	sr_gpio_write(SR_GPIO_TCK, out);
+}
+
+static void sr_jtdev_tms(struct jtdev *p, int out) {
+	UNUSED(p);
+	sr_gpio_write(SR_GPIO_TMS, out);
+}
+
+static void sr_jtdev_tdi(struct jtdev *p, int out) {
+	UNUSED(p);
+	sr_gpio_write(SR_GPIO_TDI, out);
+}
+
+static void sr_jtdev_rst(struct jtdev *p, int out) {
+	UNUSED(p);
+	sr_gpio_write(SR_GPIO_RST, out);
+}
+
+static void sr_jtdev_tst(struct jtdev *p, int out) {
+	UNUSED(p);
+	sr_gpio_write(SR_GPIO_TST, out);
+}
+
+static int sr_jtdev_tdo_get(struct jtdev *p) {
+    UNUSED(p);
+	return gpio_get(gpios[SR_GPIO_TST].port, gpios[SR_GPIO_TST].num);
+}
+
+static void sr_jtdev_tclk(struct jtdev *p, int out) {
+	UNUSED(p);
+	sr_gpio_write(SR_GPIO_TST, out);
+}
+
+static int sr_jtdev_tclk_get(struct jtdev *p) {
+    UNUSED(p);
+	return gpio_get(gpios[SR_GPIO_TDI].port, gpios[SR_GPIO_TDI].num);
+}
+
+static void sr_jtdev_tclk_strobe(struct jtdev *p, unsigned int count) {
+    UNUSED(p);
+	while (count--) {
+		gpio_set(gpios[SR_GPIO_TDI].port, gpios[SR_GPIO_TDI].num);
+		gpio_clear(gpios[SR_GPIO_TDI].port, gpios[SR_GPIO_TDI].num);
+	}
+}
+
+static void sr_jtdev_led_green(struct jtdev *p, int out) {
+	UNUSED(p);
+	UNUSED(out);
+	/* ignore */
+}
+
+static void sr_jtdev_led_red(struct jtdev *p, int out) {
+	UNUSED(p);
+	UNUSED(out);
+	/* ignore */
+}
+
+
+static struct jtdev_func sr_jtdev_vtable = {
+	.jtdev_open = NULL,
+	.jtdev_close = NULL,
+
+	.jtdev_power_off = NULL,
+	.jtdev_release = NULL,
+
+	.jtdev_power_on = sr_jtdev_power_on,
+	.jtdev_connect = sr_jtdev_connect,
+
+	.jtdev_tck = sr_jtdev_tck,
+	.jtdev_tms = sr_jtdev_tms,
+	.jtdev_tdi = sr_jtdev_tdi,
+	.jtdev_rst = sr_jtdev_rst,
+	.jtdev_tst = sr_jtdev_tst,
+	.jtdev_tdo_get = sr_jtdev_tdo_get,
+
+	.jtdev_tclk = sr_jtdev_tclk,
+	.jtdev_tclk_get = sr_jtdev_tclk_get,
+	.jtdev_tclk_strobe = sr_jtdev_tclk_strobe,
+
+	.jtdev_led_green = sr_jtdev_led_green,
+	.jtdev_led_red = sr_jtdev_led_red,
+
+};
+
+static struct jtdev sr_jtdev = {
+	0,
+	.f = &sr_jtdev_vtable
+};
+