diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/jtag/jlink.c | 62 |
1 files changed, 45 insertions, 17 deletions
diff --git a/src/jtag/jlink.c b/src/jtag/jlink.c index 36395fd8..028a36cf 100644 --- a/src/jtag/jlink.c +++ b/src/jtag/jlink.c @@ -44,7 +44,7 @@ // See Section 1.3.2 of the Segger JLink USB protocol manual #define JLINK_IN_BUFFER_SIZE 2048 -#define JLINK_OUT_BUFFER_SIZE 2048 +#define JLINK_OUT_BUFFER_SIZE 2*2048+4 #define JLINK_EMU_RESULT_BUFFER_SIZE 64 /* Global USB buffers */ @@ -53,14 +53,16 @@ static u8 usb_out_buffer[JLINK_OUT_BUFFER_SIZE]; static u8 usb_emu_result_buffer[JLINK_EMU_RESULT_BUFFER_SIZE]; /* Constants for JLink command */ -#define EMU_CMD_VERSION 0x01 -#define EMU_CMD_SET_SPEED 0x05 -#define EMU_CMD_GET_STATE 0x07 -#define EMU_CMD_HW_JTAG3 0xcf -#define EMU_CMD_HW_RESET0 0xdc -#define EMU_CMD_HW_RESET1 0xdd -#define EMU_CMD_HW_TRST0 0xde -#define EMU_CMD_HW_TRST1 0xdf +#define EMU_CMD_VERSION 0x01 +#define EMU_CMD_SET_SPEED 0x05 +#define EMU_CMD_GET_STATE 0x07 +#define EMU_CMD_HW_JTAG3 0xcf +#define EMU_CMD_GET_MAX_MEM_BLOCK 0xd4 +#define EMU_CMD_HW_RESET0 0xdc +#define EMU_CMD_HW_RESET1 0xdd +#define EMU_CMD_HW_TRST0 0xde +#define EMU_CMD_HW_TRST1 0xdf +#define EMU_CMD_GET_CAPS 0xe8 /* max speed 12MHz v5.0 jlink */ #define JLINK_MAX_SPEED 12000 @@ -530,6 +532,7 @@ static int jlink_get_version_info(void) { int result; int len; + u32 jlink_caps, jlink_max_size; /* query hardware version */ jlink_simple_command(EMU_CMD_VERSION); @@ -537,8 +540,7 @@ static int jlink_get_version_info(void) result = jlink_usb_read(jlink_jtag_handle, 2); if (2 != result) { - LOG_ERROR("J-Link command EMU_CMD_VERSION failed (%d)\n", - result); + LOG_ERROR("J-Link command EMU_CMD_VERSION failed (%d)\n", result); return ERROR_JTAG_DEVICE_ERROR; } @@ -546,14 +548,41 @@ static int jlink_get_version_info(void) result = jlink_usb_read(jlink_jtag_handle, len); if (result != len) { - LOG_ERROR("J-Link command EMU_CMD_VERSION failed (%d)\n", - result); + LOG_ERROR("J-Link command EMU_CMD_VERSION failed (%d)\n", result); return ERROR_JTAG_DEVICE_ERROR; } usb_in_buffer[result] = 0; LOG_INFO("%s", (char *)usb_in_buffer); + /* query hardware capabilities */ + jlink_simple_command(EMU_CMD_GET_CAPS); + + result = jlink_usb_read(jlink_jtag_handle, 4); + if (4 != result) + { + LOG_ERROR("J-Link command EMU_CMD_GET_CAPS failed (%d)\n", result); + return ERROR_JTAG_DEVICE_ERROR; + } + + jlink_caps = buf_get_u32(usb_in_buffer, 0, 32); + LOG_INFO("JLink caps 0x%x", jlink_caps); + + + /* query hardware maximum memory block */ + jlink_simple_command(EMU_CMD_GET_MAX_MEM_BLOCK); + + result = jlink_usb_read(jlink_jtag_handle, 4); + if (4 != result) + { + LOG_ERROR("J-Link command EMU_CMD_GET_MAX_MEM_BLOCK failed (%d)\n", result); + return ERROR_JTAG_DEVICE_ERROR; + } + + jlink_max_size = buf_get_u32(usb_in_buffer, 0, 32); + LOG_INFO("JLink max mem block %i", jlink_max_size); + + return ERROR_OK; } @@ -689,8 +718,8 @@ static int jlink_tap_execute(void) result = jlink_usb_message(jlink_jtag_handle, 4 + 2 * byte_length, byte_length); if (result != byte_length) { - LOG_ERROR("jlink_tap_execute, wrong result %d (expected %d)", - result, byte_length); + LOG_ERROR("jlink_tap_execute, wrong result %d (expected %d)", result, byte_length); + jlink_tap_init(); return ERROR_JTAG_QUEUE_FAILED; } @@ -726,7 +755,6 @@ static int jlink_tap_execute(void) } jlink_tap_init(); - return ERROR_OK; } @@ -800,7 +828,7 @@ static int jlink_usb_message(jlink_jtag_t *jlink_jtag, int out_length, int in_le } result = jlink_usb_read(jlink_jtag, in_length); - if ((result != in_length) && (result != in_length + 1)) + if ((result != in_length) && (result != (in_length + 1))) { LOG_ERROR("usb_bulk_read failed (requested=%d, result=%d)", in_length, result); |