diff options
| -rw-r--r-- | src/jtag/vsllink.c | 924 | ||||
| -rw-r--r-- | src/target/interface/vsllink.cfg | 25 |
2 files changed, 735 insertions, 214 deletions
diff --git a/src/jtag/vsllink.c b/src/jtag/vsllink.c index 02d4e64e..54a6eb64 100644 --- a/src/jtag/vsllink.c +++ b/src/jtag/vsllink.c @@ -49,12 +49,16 @@ #define DEBUG_JTAG_IO(expr ...) #endif -static u16 vsllink_vid; -static u16 vsllink_pid; -static u8 vsllink_bulkout; -static u8 vsllink_bulkin; +#define VSLLINK_MODE_NORMAL 0 +#define VSLLINK_MODE_DMA 1 -#define VSLLINK_USB_TIMEOUT 10000 +static u16 vsllink_usb_vid; +static u16 vsllink_usb_pid; +static u8 vsllink_usb_bulkout; +static u8 vsllink_usb_bulkin; +static u8 vsllink_usb_interface; +static u8 vsllink_mode = VSLLINK_MODE_NORMAL; +static int VSLLINK_USB_TIMEOUT = 10000; static int VSLLINK_BufferSize = 1024; @@ -74,6 +78,7 @@ static u8* vsllink_usb_out_buffer = NULL; #define VSLLINK_CMD_HW_JTAGSEQCMD 0xA0 #define VSLLINK_CMD_HW_JTAGHLCMD 0xA1 #define VSLLINK_CMD_HW_SWDCMD 0xA2 +#define VSLLINK_CMD_HW_JTAGRAWCMD 0xA3 #define VSLLINK_CMDJTAGSEQ_TMSBYTE 0x00 #define VSLLINK_CMDJTAGSEQ_TMSCLOCK 0x40 @@ -101,7 +106,7 @@ static u8* vsllink_usb_out_buffer = NULL; * 3: Pause-DR * 4: Shift-IR * 5: Pause-IR - * + * * SD->SD and SI->SI have to be caught in interface specific code */ static u8 VSLLINK_tap_move[6][6] = @@ -110,9 +115,9 @@ static u8 VSLLINK_tap_move[6][6] = {0xff, 0x7f, 0x2f, 0x0a, 0x37, 0x16}, /* TLR */ {0xff, 0x00, 0x45, 0x05, 0x4b, 0x0b}, /* RTI */ {0xff, 0x61, 0x00, 0x01, 0x0f, 0x2f}, /* SD */ - {0xff, 0x60, 0x40, 0x5c, 0x3c, 0x5e}, /* PD */ + {0xfe, 0x60, 0x40, 0x5c, 0x3c, 0x5e}, /* PD */ {0xff, 0x61, 0x07, 0x17, 0x00, 0x01}, /* SI */ - {0xff, 0x60, 0x38, 0x5c, 0x40, 0x5e} /* PI */ + {0xfe, 0x60, 0x38, 0x5c, 0x40, 0x5e} /* PI */ }; typedef struct insert_insignificant_operation @@ -175,8 +180,8 @@ static u8 VSLLINK_BIT_MSK[8] = typedef struct { - int length; /* Number of bits to read */ int offset; + int length; /* Number of bits to read */ scan_command_t *command; /* Corresponding scan command */ u8 *buffer; } pending_scan_result_t; @@ -200,22 +205,42 @@ static int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, cha static int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); static int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); static int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int vsllink_handle_usb_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int vsllink_handle_mode_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); /* Queue command functions */ static void vsllink_end_state(tap_state_t state); -static void vsllink_state_move(void); -static void vsllink_path_move(int num_states, tap_state_t *path); +static void vsllink_state_move_dma(void); +static void vsllink_state_move_normal(void); +static void (*vsllink_state_move)(void); +static void vsllink_path_move_dma(int num_states, tap_state_t *path); +static void vsllink_path_move_normal(int num_states, tap_state_t *path); +static void (*vsllink_path_move)(int num_states, tap_state_t *path); static void vsllink_runtest(int num_cycles); -static void vsllink_stableclocks(int num_cycles, int tms); -static void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command); +static void vsllink_stableclocks_dma(int num_cycles, int tms); +static void vsllink_stableclocks_normal(int num_cycles, int tms); +static void (*vsllink_stableclocks)(int num_cycles, int tms); +static void vsllink_scan_dma(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command); +static void vsllink_scan_normal(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command); +static void (*vsllink_scan)(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command); static void vsllink_reset(int trst, int srst); static void vsllink_simple_command(u8 command); +static int vsllink_connect(void); +static int vsllink_disconnect(void); /* VSLLink tap buffer functions */ -static void vsllink_tap_init(void); -static int vsllink_tap_execute(void); -static void vsllink_tap_ensure_space(int scans, int bytes); -static void vsllink_tap_append_scan(int length, u8 *buffer, scan_command_t *command, int offset); +static void vsllink_tap_append_step(int tms, int tdi); +static void vsllink_tap_init_dma(void); +static void vsllink_tap_init_normal(void); +static void (*vsllink_tap_init)(void); +static int vsllink_tap_execute_dma(void); +static int vsllink_tap_execute_normal(void); +static int (*vsllink_tap_execute)(void); +static void vsllink_tap_ensure_space_dma(int scans, int length); +static void vsllink_tap_ensure_space_normal(int scans, int length); +static void (*vsllink_tap_ensure_space)(int scans, int length); +static void vsllink_tap_append_scan_dma(int length, u8 *buffer, scan_command_t *command); +static void vsllink_tap_append_scan_normal(int length, u8 *buffer, scan_command_t *command, int offset); /* VSLLink lowlevel functions */ typedef struct vsllink_jtag @@ -236,7 +261,14 @@ static void vsllink_debug_buffer(u8 *buffer, int length); static int vsllink_tms_data_len = 0; static u8* vsllink_tms_cmd_pos; -static vsllink_jtag_t* vsllink_jtag_handle; +static int tap_length = 0; +static int tap_buffer_size = 0; +static u8 *tms_buffer = NULL; +static u8 *tdi_buffer = NULL; +static u8 *tdo_buffer = NULL; +static int last_tms; + +static vsllink_jtag_t* vsllink_jtag_handle = NULL; /***************************************************************************/ /* External interface implementation */ @@ -253,6 +285,19 @@ jtag_interface_t vsllink_interface = .quit = vsllink_quit }; +static void reset_command_pointer(void) +{ + if (vsllink_mode == VSLLINK_MODE_NORMAL) + { + vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD; + vsllink_usb_out_buffer_idx = 3; + } + else + { + tap_length = 0; + } +} + static int vsllink_execute_queue(void) { jtag_command_t *cmd = jtag_command_queue; @@ -262,56 +307,55 @@ static int vsllink_execute_queue(void) DEBUG_JTAG_IO("--------------------------------- vsllink -------------------------------------"); - vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD; - vsllink_usb_out_buffer_idx = 3; + reset_command_pointer(); while (cmd != NULL) { switch (cmd->type) { case JTAG_END_STATE: DEBUG_JTAG_IO("end_state: %s", tap_state_name(cmd->cmd.end_state->end_state)); - + if (cmd->cmd.end_state->end_state != TAP_INVALID) { vsllink_end_state(cmd->cmd.end_state->end_state); } break; - + case JTAG_RUNTEST: DEBUG_JTAG_IO( "runtest %i cycles, end in %s", cmd->cmd.runtest->num_cycles, \ tap_state_name(cmd->cmd.runtest->end_state)); - + if (cmd->cmd.runtest->end_state != TAP_INVALID) { vsllink_end_state(cmd->cmd.runtest->end_state); } vsllink_runtest(cmd->cmd.runtest->num_cycles); break; - + case JTAG_STATEMOVE: DEBUG_JTAG_IO("statemove end in %s", tap_state_name(cmd->cmd.statemove->end_state)); - + if (cmd->cmd.statemove->end_state != TAP_INVALID) { vsllink_end_state(cmd->cmd.statemove->end_state); } vsllink_state_move(); break; - + case JTAG_PATHMOVE: DEBUG_JTAG_IO("pathmove: %i states, end in %s", \ cmd->cmd.pathmove->num_states, \ tap_state_name(cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1])); - + vsllink_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path); break; - + case JTAG_SCAN: if (cmd->cmd.scan->end_state != TAP_INVALID) { vsllink_end_state(cmd->cmd.scan->end_state); } - + scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer); if (cmd->cmd.scan->ir_scan) { @@ -321,37 +365,34 @@ static int vsllink_execute_queue(void) { DEBUG_JTAG_IO("JTAG Scan write DR(%d bits), end in %s:", scan_size, tap_state_name(cmd->cmd.scan->end_state)); } - + #ifdef _DEBUG_JTAG_IO_ vsllink_debug_buffer(buffer, (scan_size + 7) >> 3); #endif - + type = jtag_scan_type(cmd->cmd.scan); - + vsllink_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size, cmd->cmd.scan); break; - + case JTAG_RESET: DEBUG_JTAG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst); - + vsllink_tap_execute(); - + if (cmd->cmd.reset->trst == 1) { tap_set_state(TAP_RESET); } vsllink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst); - - vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD; - vsllink_usb_out_buffer_idx = 3; break; - + case JTAG_SLEEP: DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us); vsllink_tap_execute(); jtag_sleep(cmd->cmd.sleep->us); break; - + case JTAG_STABLECLOCKS: DEBUG_JTAG_IO("add %d clocks", cmd->cmd.stableclocks->num_cycles); switch(tap_get_state()) @@ -375,27 +416,27 @@ static int vsllink_execute_queue(void) } vsllink_stableclocks(cmd->cmd.stableclocks->num_cycles, scan_size); break; - + default: LOG_ERROR("BUG: unknown JTAG command type encountered: %d", cmd->type); exit(-1); } cmd = cmd->next; } - + return vsllink_tap_execute(); } static int vsllink_speed(int speed) { int result; - + vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_SPEED; vsllink_usb_out_buffer[1] = (speed >> 0) & 0xff; vsllink_usb_out_buffer[2] = (speed >> 8) & 0xFF; - + result = vsllink_usb_write(vsllink_jtag_handle, 3); - + if (result == 3) { return ERROR_OK; @@ -405,44 +446,30 @@ static int vsllink_speed(int speed) LOG_ERROR("VSLLink setting speed failed (%d)", result); return ERROR_JTAG_DEVICE_ERROR; } - + return ERROR_OK; } static int vsllink_khz(int khz, int *jtag_speed) { *jtag_speed = khz; - + return ERROR_OK; } static int vsllink_speed_div(int jtag_speed, int *khz) { *khz = jtag_speed; - - return ERROR_OK; -} - -static int vsllink_register_commands(struct command_context_s *cmd_ctx) -{ - register_command(cmd_ctx, NULL, "vsllink_usb_vid", vsllink_handle_usb_vid_command, - COMMAND_CONFIG, NULL); - register_command(cmd_ctx, NULL, "vsllink_usb_pid", vsllink_handle_usb_pid_command, - COMMAND_CONFIG, NULL); - register_command(cmd_ctx, NULL, "vsllink_usb_bulkin", vsllink_handle_usb_bulkin_command, - COMMAND_CONFIG, NULL); - register_command(cmd_ctx, NULL, "vsllink_usb_bulkout", vsllink_handle_usb_bulkout_command, - COMMAND_CONFIG, NULL); - + return ERROR_OK; } static int vsllink_init(void) { - int check_cnt; + int check_cnt, to_tmp; int result; char version_str[100]; - + vsllink_usb_in_buffer = malloc(VSLLINK_BufferSize); vsllink_usb_out_buffer = malloc(VSLLINK_BufferSize); if ((vsllink_usb_in_buffer == NULL) || (vsllink_usb_out_buffer == NULL)) @@ -450,34 +477,37 @@ static int vsllink_init(void) LOG_ERROR("Not enough memory"); exit(-1); } - + vsllink_jtag_handle = vsllink_usb_open(); - + if (vsllink_jtag_handle == 0) { LOG_ERROR("Can't find USB JTAG Interface! Please check connection and permissions."); return ERROR_JTAG_INIT_FAILED; } - + LOG_DEBUG("vsllink found on %04X:%04X", vsllink_usb_vid, vsllink_usb_pid); + + to_tmp = VSLLINK_USB_TIMEOUT; + VSLLINK_USB_TIMEOUT = 100; check_cnt = 0; - while (check_cnt < 3) + while (check_cnt < 5) { - vsllink_simple_command(VSLLINK_CMD_CONN); + vsllink_simple_command(0x00); result = vsllink_usb_read(vsllink_jtag_handle); - + if (result > 2) { vsllink_usb_in_buffer[result] = 0; VSLLINK_BufferSize = vsllink_usb_in_buffer[0] + (vsllink_usb_in_buffer[1] << 8); strncpy(version_str, (char *)vsllink_usb_in_buffer + 2, sizeof(version_str)); LOG_INFO("%s", version_str); - + // free the pre-alloc memroy free(vsllink_usb_in_buffer); free(vsllink_usb_out_buffer); vsllink_usb_in_buffer = NULL; vsllink_usb_out_buffer = NULL; - + // alloc new memory vsllink_usb_in_buffer = malloc(VSLLINK_BufferSize); vsllink_usb_out_buffer = malloc(VSLLINK_BufferSize); @@ -490,20 +520,64 @@ static int vsllink_init(void) { LOG_INFO("buffer size for USB is %d bytes", VSLLINK_BufferSize); } + // alloc memory for dma mode + if (vsllink_mode == VSLLINK_MODE_DMA) + { + tap_buffer_size = (VSLLINK_BufferSize - 3) / 2; + tms_buffer = (u8*)malloc(tap_buffer_size); + tdi_buffer = (u8*)malloc(tap_buffer_size); + tdo_buffer = (u8*)malloc(tap_buffer_size); + if ((tms_buffer == NULL) || (tdi_buffer == NULL) || (tdo_buffer == NULL)) + { + LOG_ERROR("Not enough memory"); + exit(-1); + } + } break; } vsllink_simple_command(VSLLINK_CMD_DISCONN); - check_cnt++; } - if (check_cnt == 3) { // It's dangerout to proced LOG_ERROR("VSLLink initial failed"); exit(-1); } - + VSLLINK_USB_TIMEOUT = to_tmp; + + // connect to vsllink + vsllink_connect(); + // initialize function pointers + if (vsllink_mode == VSLLINK_MODE_NORMAL) + { + // normal mode + vsllink_state_move = vsllink_state_move_normal; + vsllink_path_move = vsllink_path_move_normal; + vsllink_stableclocks = vsllink_stableclocks_normal; + vsllink_scan = vsllink_scan_normal; + + vsllink_tap_init = vsllink_tap_init_normal; + vsllink_tap_execute = vsllink_tap_execute_normal; + vsllink_tap_ensure_space = vsllink_tap_ensure_space_normal; + + LOG_INFO("vsllink run in NORMAL mode"); + } + else + { + // dma mode + vsllink_state_move = vsllink_state_move_dma; + vsllink_path_move = vsllink_path_move_dma; + vsllink_stableclocks = vsllink_stableclocks_dma; + vsllink_scan = vsllink_scan_dma; + + vsllink_tap_init = vsllink_tap_init_dma; + vsllink_tap_execute = vsllink_tap_execute_dma; + vsllink_tap_ensure_space = vsllink_tap_ensure_space_dma; + + LOG_INFO("vsllink run in DMA mode"); + } + // Set SRST and TRST to output, Set USR1 and USR2 to input vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORTDIR; vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST | JTAG_PINMSK_USR1 | JTAG_PINMSK_USR2; @@ -513,13 +587,13 @@ static int vsllink_init(void) LOG_ERROR("VSLLink USB send data error"); exit(-1); } - + vsllink_reset(0, 0); - + LOG_INFO("VSLLink JTAG Interface ready"); - + vsllink_tap_init(); - + return ERROR_OK; } @@ -536,20 +610,48 @@ static int vsllink_quit(void) LOG_ERROR("VSLLink USB send data error"); exit(-1); } - + // disconnect - vsllink_simple_command(VSLLINK_CMD_DISCONN); + vsllink_disconnect(); vsllink_usb_close(vsllink_jtag_handle); + vsllink_jtag_handle = NULL; } - + if (vsllink_usb_in_buffer != NULL) { free(vsllink_usb_in_buffer); + vsllink_usb_in_buffer = NULL; } if (vsllink_usb_out_buffer != NULL) { free(vsllink_usb_out_buffer); + vsllink_usb_out_buffer = NULL; } + + return ERROR_OK; +} + +/***************************************************************************/ +/* Queue command implementations */ +static int vsllink_disconnect(void) +{ + vsllink_simple_command(VSLLINK_CMD_DISCONN); + return ERROR_OK; +} + +static int vsllink_connect(void) +{ + char vsllink_str[100]; + + vsllink_usb_out_buffer[0] = VSLLINK_CMD_CONN; + vsllink_usb_out_buffer[1] = vsllink_mode; + vsllink_usb_message(vsllink_jtag_handle, 2, 0); + if (vsllink_usb_read(vsllink_jtag_handle) > 2) + { + strncpy(vsllink_str, (char *)vsllink_usb_in_buffer + 2, sizeof(vsllink_str)); + LOG_INFO("%s", vsllink_str); + } + return ERROR_OK; } @@ -559,8 +661,9 @@ static void vsllink_append_tms(void) { u8 tms_scan = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state()); u16 tms2; - tap_state_t end_state = tap_get_end_state(); - + insert_insignificant_operation_t *insert = \ + &VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())]; + if (((tap_get_state() != TAP_RESET) && (tap_get_state() != TAP_IDLE) && (tap_get_state() != TAP_DRPAUSE) && (tap_get_state() != TAP_IRPAUSE)) || \ (vsllink_tms_data_len <= 0) || (vsllink_tms_data_len >= 8) || \ (vsllink_tms_cmd_pos == NULL)) @@ -568,27 +671,24 @@ static void vsllink_append_tms(void) LOG_ERROR("There MUST be some bugs in the driver"); exit(-1); } - - tms2 = (tms_scan & VSLLINK_BIT_MSK[VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(end_state)].insert_position]) << \ + + tms2 = (tms_scan & VSLLINK_BIT_MSK[insert->insert_position]) << \ vsllink_tms_data_len; - if (VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(end_state)].insert_value == 1) + if (insert->insert_value == 1) { tms2 |= VSLLINK_BIT_MSK[8 - vsllink_tms_data_len] << \ - (vsllink_tms_data_len + VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(end_state)].insert_position); + (vsllink_tms_data_len + insert->insert_position); } - tms2 |= (tms_scan >> VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(end_state)].insert_position) << \ - (8 + VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(end_state)].insert_position); - + tms2 |= (tms_scan >> insert->insert_position) << \ + (8 + insert->insert_position); + vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (tms2 >> 0) & 0xff; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms2 >> 8) & 0xff; - + vsllink_tms_data_len = 0; vsllink_tms_cmd_pos = NULL; } -/***************************************************************************/ -/* Queue command implementations */ - static void vsllink_end_state(tap_state_t state) { if (tap_is_state_stable(state)) @@ -603,7 +703,7 @@ static void vsllink_end_state(tap_state_t state) } /* Goes to the end state. */ -static void vsllink_state_move(void) +static void vsllink_state_move_normal(void) { if (vsllink_tms_data_len > 0) { @@ -612,11 +712,57 @@ static void vsllink_state_move(void) else { vsllink_tap_ensure_space(0, 2); - + vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state()); } - + + tap_set_state(tap_get_end_state()); +} +static void vsllink_state_move_dma(void) +{ + int i, insert_length = (tap_length % 8) ? (8 - (tap_length % 8)) : 0; + insert_insignificant_operation_t *insert = \ + &VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())]; + u8 tms_scan = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state()); + + vsllink_tap_ensure_space(0, 8); + + if (tap_get_state() == TAP_RESET) + { + for (i = 0; i < 8; i++) + { + vsllink_tap_append_step(1, 0); + } + } + + if (insert_length > 0) + { + vsllink_tap_ensure_space(0, 16); + + for (i = 0; i < insert->insert_position; i++) + { + vsllink_tap_append_step((tms_scan >> i) & 1, 0); + } + for (i = 0; i < insert_length; i++) + { + vsllink_tap_append_step(insert->insert_value, 0); + } + for (i = insert->insert_position; i < 8; i++) + { + vsllink_tap_append_step((tms_scan >> i) & 1, 0); + } + } + else + { + vsllink_tap_ensure_space(0, 8); + + for (i = 0; i < 8; i++) + { + vsllink_tap_append_step((tms_scan >> i) & 1, 0); + } + } + tap_set_state(tap_get_end_state()); } @@ -624,7 +770,7 @@ static void vsllink_state_move(void) static void vsllink_add_path(int start, int num, tap_state_t *path) { int i; - + for (i = start; i < (start + num); i++) { if ((i & 7) == 0) @@ -635,7 +781,7 @@ static void vsllink_add_path(int start, int num, tap_state_t *path) } vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0; } - + if (path[i - start] == tap_state_transition(tap_get_state(), true)) { vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] |= 1 << (i & 7); @@ -656,14 +802,14 @@ static void vsllink_add_path(int start, int num, tap_state_t *path) vsllink_usb_out_buffer_idx++; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0; } - + tap_set_end_state(tap_get_state()); } -static void vsllink_path_move(int num_states, tap_state_t *path) +static void vsllink_path_move_normal(int num_states, tap_state_t *path) { int i, tms_len, tms_cmd_pos, path_idx = 0; - + if (vsllink_tms_data_len > 0) { // there are vsllink_tms_data_len more tms bits to be shifted @@ -714,7 +860,7 @@ static void vsllink_path_move(int num_states, tap_state_t *path) // end last tms shift command vsllink_add_path(vsllink_tms_data_len, num_states, path); } - + vsllink_tms_data_len = (vsllink_tms_data_len + num_states) & 7; if (vsllink_tms_data_len == 0) { @@ -725,19 +871,19 @@ static void vsllink_path_move(int num_states, tap_state_t *path) else { vsllink_add_path(vsllink_tms_data_len, 16 - vsllink_tms_data_len, path); - + path += 16 - vsllink_tms_data_len; num_states -= 16 - vsllink_tms_data_len; vsllink_tms_data_len = 0; vsllink_tms_cmd_pos = NULL; } } - + if (num_states > 0) { // Normal operation, don't need to append tms data vsllink_tms_data_len = num_states & 7; - + while (num_states > 0) { if (num_states > ((VSLLINK_CMDJTAGSEQ_LENMSK + 1) * 8)) @@ -752,13 +898,13 @@ static void vsllink_path_move(int num_states, tap_state_t *path) vsllink_tap_ensure_space(0, tms_len + 2); tms_cmd_pos = vsllink_usb_out_buffer_idx; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | (tms_len - 1); - + vsllink_add_path(0, i, path + path_idx); - + path_idx += i; num_states -= i; } - + if (vsllink_tms_data_len > 0) { if (tms_len < (VSLLINK_CMDJTAGSEQ_LENMSK + 1)) @@ -769,7 +915,7 @@ static void vsllink_path_move(int num_states, tap_state_t *path) else { vsllink_usb_out_buffer[tms_cmd_pos]--; - + tms_len = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx]; vsllink_tap_ensure_space(0, 3); vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx]; @@ -779,12 +925,71 @@ static void vsllink_path_move(int num_states, tap_state_t *path) } } } +static void vsllink_path_move_dma(int num_states, tap_state_t *path) +{ + int i, j = 0; + + if (tap_length & 7) + { + if ((8 - (tap_length & 7)) < num_states) + { + j = 8 - (tap_length & 7); + } + else + { + j = num_states; + } + for (i = 0; i < j; i++) + { + if (path[i] == tap_state_transition(tap_get_state(), false)) + { + vsllink_tap_append_step(0, 0); + } + else if (path[i] == tap_state_transition(tap_get_state(), true)) + { + vsllink_tap_append_step(1, 0); + } + else + { + LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i])); + exit(-1); + } + tap_set_state(path[i]); + } + num_states -= j; + } + + if (num_states > 0) + { + vsllink_tap_ensure_space(0, num_states); + + for (i = 0; i < num_states; i++) + { + if (path[j + i] == tap_state_transition(tap_get_state(), false)) + { + vsllink_tap_append_step(0, 0); + } + else if (path[j + i] == tap_state_transition(tap_get_state(), true)) + { + vsllink_tap_append_step(1, 0); + } + else + { + LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i])); + exit(-1); + } + tap_set_state(path[j + i]); + } + } + + tap_set_end_state(tap_get_state()); +} -static void vsllink_stableclocks(int num_cycles, int tms) +static void vsllink_stableclocks_normal(int num_cycles, int tms) { int tms_len; u16 tms_append_byte; - + if (vsllink_tms_data_len > 0) { // there are vsllink_tms_data_len more tms bits to be shifted @@ -850,7 +1055,7 @@ static void vsllink_stableclocks(int num_cycles, int tms) vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (u8)(tms_append_byte & 0xFF); vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (u8)(tms_append_byte >> 8); } - + vsllink_tms_data_len = tms_len & 7; if (vsllink_tms_data_len == 0) { @@ -863,14 +1068,14 @@ static void vsllink_stableclocks(int num_cycles, int tms) // more shifts will be needed vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (u8)(tms_append_byte & 0xFF); vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (u8)(tms_append_byte >> 8); - + num_cycles -= 16 - vsllink_tms_data_len; vsllink_tms_data_len = 0; vsllink_tms_cmd_pos = NULL; } } // from here vsllink_tms_data_len == 0 or num_cycles == 0 - + if (vsllink_tms_data_len > 0) { // num_cycles == 0 @@ -903,17 +1108,17 @@ static void vsllink_stableclocks(int num_cycles, int tms) vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 8) & 0xff; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 16) & 0xff; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 24) & 0xff; - + vsllink_usb_in_want_length += 1; pending_scan_results_buffer[pending_scan_results_length].buffer = NULL; pending_scan_results_length++; - + if (tms_len > 0xFFFF) { vsllink_tap_execute(); } } - + // post-process vsllink_tms_data_len = num_cycles & 7; if (vsllink_tms_data_len > 0) @@ -934,20 +1139,62 @@ static void vsllink_stableclocks(int num_cycles, int tms) } } } +static void vsllink_stableclocks_dma(int num_cycles, int tms) +{ + int i, cur_cycles; + + if (tap_length & 7) + { + if ((8 - (tap_length & 7)) < num_cycles) + { + cur_cycles = 8 - (tap_length & 7); + } + else + { + cur_cycles = num_cycles; + } + for (i = 0; i < cur_cycles; i++) + { + vsllink_tap_append_step(tms, 0); + } + num_cycles -= cur_cycles; + } + + while (num_cycles > 0) + { + if (num_cycles > 8 * tap_buffer_size) + { + cur_cycles = 8 * tap_buffer_size; + } + else + { + cur_cycles = num_cycles; + } + + vsllink_tap_ensure_space(0, cur_cycles); + + for (i = 0; i < cur_cycles; i++) + { + vsllink_tap_append_step(tms, 0); + } + + num_cycles -= cur_cycles; + } +} static void vsllink_runtest(int num_cycles) { tap_state_t saved_end_state = tap_get_end_state(); - + if (tap_get_state() != TAP_IDLE) { // enter into IDLE state vsllink_end_state(TAP_IDLE); vsllink_state_move(); } - + vsllink_stableclocks(num_cycles, 0); - + // post-process // set end_state vsllink_end_state(saved_end_state); @@ -958,29 +1205,29 @@ static void vsllink_runtest(int num_cycles) } } -static void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command) +static void vsllink_scan_normal(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command) { tap_state_t saved_end_state; u8 bits_left, tms_tmp, tdi_len; int i; - + if (0 == scan_size ) { return; } - + tdi_len = ((scan_size + 7) >> 3); if ((tdi_len + 7) > VSLLINK_BufferSize) { LOG_ERROR("Your implementation of VSLLink has not enough buffer"); exit(-1); } - + saved_end_state = tap_get_end_state(); - + /* Move to appropriate scan state */ vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT); - + if (vsllink_tms_data_len > 0) { if (tap_get_state() == tap_get_end_state()) @@ -1002,16 +1249,16 @@ static void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_ tms_tmp = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx]; *vsllink_tms_cmd_pos -= 2; } - + vsllink_tap_ensure_space(1, tdi_len + 7); - // VSLLINK_CMDJTAGSEQ_SCAN ored by 1 means that tms_before is valid + // VSLLINK_CMDJTAGSEQ_SCAN ored by 1 means that tms_before is valid // which is merged from the last tms shift command vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN | 1; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 0) & 0xff; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1)>> 8) & 0xff; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = tms_tmp; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[0] << (8 - vsllink_tms_data_len); - + for (i = 0; i < tdi_len; i++) { buffer[i] >>= 8 - vsllink_tms_data_len; @@ -1020,40 +1267,40 @@ static void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_ buffer[i] += buffer[i + 1] << vsllink_tms_data_len; } } - - vsllink_tap_append_scan(scan_size - vsllink_tms_data_len, buffer, command, vsllink_tms_data_len); + + vsllink_tap_append_scan_normal(scan_size - vsllink_tms_data_len, buffer, command, vsllink_tms_data_len); scan_size -= 8 - vsllink_tms_data_len; vsllink_tms_data_len = 0; } else { - vsllink_append_tms(); + vsllink_state_move(); vsllink_tap_ensure_space(1, tdi_len + 5); - + vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tdi_len >> 0) & 0xff; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tdi_len >> 8) & 0xff; - - vsllink_tap_append_scan(scan_size, buffer, command, 0); + + vsllink_tap_append_scan_normal(scan_size, buffer, command, 0); } } else { vsllink_tap_ensure_space(1, tdi_len + 7); - + vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN | 1; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 0) & 0xff; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1)>> 8) & 0xff; vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state()); vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0; - - vsllink_tap_append_scan(scan_size, buffer, command, 8); + + vsllink_tap_append_scan_normal(scan_size, buffer, command, 8); } vsllink_end_state(saved_end_state); - + bits_left = scan_size & 0x07; tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE); - + if (bits_left > 0) { vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << (bits_left - 1); @@ -1062,7 +1309,7 @@ static void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_ { vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << 7; } - + if (tap_get_state() != tap_get_end_state()) { vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state()); @@ -1071,16 +1318,44 @@ static void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_ { vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0; } - + tap_set_state(tap_get_end_state()); } +static void vsllink_scan_dma(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command) +{ + tap_state_t saved_end_state; + + saved_end_state = tap_get_end_state(); + + /* Move to appropriate scan state */ + vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT); + + vsllink_state_move(); + vsllink_end_state(saved_end_state); + + /* Scan */ + vsllink_tap_ensure_space(1, (scan_size + 7) & ~0x00000007); + vsllink_tap_append_scan_dma(scan_size, buffer, command); + + tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE); + while (tap_length % 8 != 0) + { + // more 0s in Pause + vsllink_tap_append_step(0, 0); + } + + if (tap_get_state() != tap_get_end_state()) + { + vsllink_state_move(); + } +} static void vsllink_reset(int trst, int srst) { int result; - + LOG_DEBUG("trst: %i, srst: %i", trst, srst); - + /* Signals are active low */ vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORT; vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST; @@ -1093,7 +1368,7 @@ static void vsllink_reset(int trst, int srst) { vsllink_usb_out_buffer[2] |= JTAG_PINMSK_TRST; } - + result = vsllink_usb_write(vsllink_jtag_handle, 3); if (result != 3) { @@ -1104,92 +1379,202 @@ static void vsllink_reset(int trst, int srst) static void vsllink_simple_command(u8 command) { int result; - + DEBUG_JTAG_IO("0x%02x", command); - + vsllink_usb_out_buffer[0] = command; result = vsllink_usb_write(vsllink_jtag_handle, 1); - + if (result != 1) { LOG_ERROR("VSLLink command 0x%02x failed (%d)", command, result); } } -static int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int vsllink_register_commands(struct command_context_s *cmd_ctx) +{ + register_command(cmd_ctx, NULL, "vsllink_usb_vid", vsllink_handle_usb_vid_command, + COMMAND_CONFIG, NULL); + register_command(cmd_ctx, NULL, "vsllink_usb_pid", vsllink_handle_usb_pid_command, + COMMAND_CONFIG, NULL); + register_command(cmd_ctx, NULL, "vsllink_usb_bulkin", vsllink_handle_usb_bulkin_command, + COMMAND_CONFIG, NULL); + register_command(cmd_ctx, NULL, "vsllink_usb_bulkout", vsllink_handle_usb_bulkout_command, + COMMAND_CONFIG, NULL); + register_command(cmd_ctx, NULL, "vsllink_usb_interface", vsllink_handle_usb_interface_command, + COMMAND_CONFIG, NULL); + register_command(cmd_ctx, NULL, "vsllink_mode", vsllink_handle_mode_command, + COMMAND_CONFIG, NULL); + + return ERROR_OK; +} + +static int vsllink_handle_mode_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc != 1) { LOG_ERROR("parameter error, should be one parameter for VID"); - return ERROR_OK; + return ERROR_FAIL; } + + if (!strcmp(args[0], "normal")) + { + vsllink_mode = VSLLINK_MODE_NORMAL; + } + else if (!strcmp(args[0], "dma")) + { + vsllink_mode = VSLLINK_MODE_DMA; + } + else + { + LOG_ERROR("invalid vsllink_mode: %s", args[0]); + return ERROR_FAIL; + } + + return ERROR_OK; +} - vsllink_vid = strtol(args[0], NULL, 0); - +static int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc != 1) + { + LOG_ERROR("parameter error, should be one parameter for VID"); + return ERROR_OK; + } + + vsllink_usb_vid = strtol(args[0], NULL, 0); + return ERROR_OK; } static int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { - if (argc != 1) { + if (argc != 1) + { LOG_ERROR("parameter error, should be one parameter for PID"); return ERROR_OK; } - - vsllink_pid = strtol(args[0], NULL, 0); - + + vsllink_usb_pid = strtol(args[0], NULL, 0); + return ERROR_OK; } static int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { - if (argc != 1) { + if (argc != 1) + { LOG_ERROR("parameter error, should be one parameter for BULKIN endpoint"); return ERROR_OK; } - - vsllink_bulkin = strtol(args[0], NULL, 0) | 0x80; - + + vsllink_usb_bulkin = strtol(args[0], NULL, 0) | 0x80; + return ERROR_OK; } static int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { - if (argc != 1) { + if (argc != 1) + { LOG_ERROR("parameter error, should be one parameter for BULKOUT endpoint"); return ERROR_OK; } + + vsllink_usb_bulkout = strtol(args[0], NULL, 0); + + return ERROR_OK; +} - vsllink_bulkout = strtol(args[0], NULL, 0); - +static int vsllink_handle_usb_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc != 1) + { + LOG_ERROR("parameter error, should be one parameter for interface number"); + return ERROR_OK; + } + + vsllink_usb_interface = strtol(args[0], NULL, 0); + return ERROR_OK; } /***************************************************************************/ /* VSLLink tap functions */ -static void vsllink_tap_init(void) +static void vsllink_tap_init_normal(void) { vsllink_usb_out_buffer_idx = 0; vsllink_usb_in_want_length = 0; pending_scan_results_length = 0; } +static void vsllink_tap_init_dma(void) +{ + tap_length = 0; + pending_scan_results_length = 0; +} -static void vsllink_tap_ensure_space(int scans, int bytes) +static void vsllink_tap_ensure_space_normal(int scans, int length) { int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length; int available_bytes = VSLLINK_BufferSize - vsllink_usb_out_buffer_idx; - - if (scans > available_scans || bytes > available_bytes) + + if (scans > available_scans || length > available_bytes) + { + vsllink_tap_execute(); + } +} +static void vsllink_tap_ensure_space_dma(int scans, int length) +{ + int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length; + int available_bytes = tap_buffer_size * 8 - tap_length; + + if (scans > available_scans || length > available_bytes) { vsllink_tap_execute(); } } -static void vsllink_tap_append_scan(int length, u8 *buffer, scan_command_t *command, int offset) +static void vsllink_tap_append_step(int tms, int tdi) +{ + last_tms = tms; + int index = tap_length / 8; + + if (index < tap_buffer_size) + { + int bit_index = tap_length % 8; + u8 bit = 1 << bit_index; + + if (tms) + { + tms_buffer[index] |= bit; + } + else + { + tms_buffer[index] &= ~bit; + } + + if (tdi) + { + tdi_buffer[index] |= bit; + } + else + { + tdi_buffer[index] &= ~bit; + } + + tap_length++; + } + else + { + LOG_ERROR("buffer overflow, tap_length=%d", tap_length); + } +} + +static void vsllink_tap_append_scan_normal(int length, u8 *buffer, scan_command_t *command, int offset) { pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length]; int i; - + if (offset > 0) { vsllink_usb_in_want_length += ((length + 7) >> 3) + 1; @@ -1202,30 +1587,47 @@ static void vsllink_tap_append_scan(int length, u8 *buffer, scan_command_t *comm pending_scan_result->offset = offset; pending_scan_result->command = command; pending_scan_result->buffer = buffer; - + for (i = 0; i < ((length + 7) >> 3); i++) { vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[i]; } - + + pending_scan_results_length++; +} +static void vsllink_tap_append_scan_dma(int length, u8 *buffer, scan_command_t *command) +{ + pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length]; + int i; + + pending_scan_result->offset = tap_length; + pending_scan_result->length = length; + pending_scan_result->command = command; + pending_scan_result->buffer = buffer; + + for (i = 0; i < length; i++) + { + vsllink_tap_append_step((i < length-1 ? 0 : 1), (buffer[i/8] >> (i%8)) & 1); + } + pending_scan_results_length++; } /* Pad and send a tap sequence to the device, and receive the answer. * For the purpose of padding we assume that we are in reset or idle or pause state. */ -static int vsllink_tap_execute(void) +static int vsllink_tap_execute_normal(void) { int i; int result; int first = 0; - + if (vsllink_tms_data_len > 0) { if((tap_get_state() != TAP_RESET) && (tap_get_state() != TAP_IDLE) && (tap_get_state() != TAP_IRPAUSE) && (tap_get_state() != TAP_DRPAUSE)) { LOG_WARNING("%s is not in RESET or IDLE or PAUSR state", tap_state_name(tap_get_state())); } - + if (vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] & (1 << (vsllink_tms_data_len - 1))) { // last tms bit is '1' @@ -1241,7 +1643,7 @@ static int vsllink_tap_execute(void) vsllink_tms_data_len = 0; } } - + if (vsllink_usb_out_buffer_idx > 3) { if (vsllink_usb_out_buffer[0] == VSLLINK_CMD_HW_JTAGSEQCMD) @@ -1249,9 +1651,9 @@ static int vsllink_tap_execute(void) vsllink_usb_out_buffer[1] = (vsllink_usb_out_buffer_idx >> 0) & 0xff; vsllink_usb_out_buffer[2] = (vsllink_usb_out_buffer_idx >> 8) & 0xff; } - + result = vsllink_usb_message(vsllink_jtag_handle, vsllink_usb_out_buffer_idx, vsllink_usb_in_want_length); - + if (result == vsllink_usb_in_want_length) { for (i = 0; i < pending_scan_results_length; i++) @@ -1261,24 +1663,24 @@ static int vsllink_tap_execute(void) int length = pending_scan_result->length; int offset = pending_scan_result->offset; scan_command_t *command = pending_scan_result->command; - + if (buffer != NULL) { // IRSHIFT or DRSHIFT buf_set_buf(vsllink_usb_in_buffer, first * 8 + offset, buffer, 0, length); first += (length + offset + 7) >> 3; - + DEBUG_JTAG_IO("JTAG scan read(%d bits):", length); #ifdef _DEBUG_JTAG_IO_ vsllink_debug_buffer(buffer, (length + 7) >> 3); #endif - + if (jtag_read_buffer(buffer, command) != ERROR_OK) { vsllink_tap_init(); return ERROR_JTAG_QUEUE_FAILED; } - + free(pending_scan_result->buffer); pending_scan_result->buffer = NULL; } @@ -1293,68 +1695,162 @@ static int vsllink_tap_execute(void) LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, vsllink_usb_in_want_length); return ERROR_JTAG_QUEUE_FAILED; } - + vsllink_tap_init(); } - - vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD; - vsllink_usb_out_buffer_idx = 3; - + reset_command_pointer(); + + return ERROR_OK; +} +static int vsllink_tap_execute_dma(void) +{ + int byte_length; + int i; + int result; + + if (tap_length > 0) + { + /* Pad last byte so that tap_length is divisible by 8 */ + while (tap_length % 8 != 0) + { + /* More of the last TMS value keeps us in the same state, + * analogous to free-running JTAG interfaces. */ + vsllink_tap_append_step(last_tms, 0); + } + byte_length = tap_length / 8; + + vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGRAWCMD; + vsllink_usb_out_buffer[1] = ((byte_length * 2 + 3) >> 0) & 0xff; // package size + vsllink_usb_out_buffer[2] = ((byte_length * 2 + 3) >> 8) & 0xff; + + memcpy(&vsllink_usb_out_buffer[3], tdi_buffer, byte_length); + memcpy(&vsllink_usb_out_buffer[3 + byte_length], tms_buffer, byte_length); + + result = vsllink_usb_message(vsllink_jtag_handle, 3 + 2 * byte_length, byte_length); + if (result == byte_length) + { + for (i = 0; i < pending_scan_results_length; i++) + { + pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[i]; + u8 *buffer = pending_scan_result->buffer; + int length = pending_scan_result->length; + int first = pending_scan_result->offset; + + scan_command_t *command = pending_scan_result->command; + buf_set_buf(vsllink_usb_in_buffer, first, buffer, 0, length); + + DEBUG_JTAG_IO("JTAG scan read(%d bits, from %d bits):", length, first); +#ifdef _DEBUG_JTAG_IO_ + vsllink_debug_buffer(buffer, (length + 7) >> 3); +#endif + + if (jtag_read_buffer(buffer, command) != ERROR_OK) + { + vsllink_tap_init(); + return ERROR_JTAG_QUEUE_FAILED; + } + + if (pending_scan_result->buffer != NULL) + { + free(pending_scan_result->buffer); + } + } + } + else + { + LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, byte_length); + return ERROR_JTAG_QUEUE_FAILED; + } + + vsllink_tap_init(); + } + return ERROR_OK; } /*****************************************************************************/ /* VSLLink USB low-level functions */ -vsllink_jtag_t* vsllink_usb_open(void) +static vsllink_jtag_t* vsllink_usb_open(void) { struct usb_bus *busses; struct usb_bus *bus; struct usb_device *dev; - + int ret; + vsllink_jtag_t *result; - + result = (vsllink_jtag_t*) malloc(sizeof(vsllink_jtag_t)); - + usb_init(); usb_find_busses(); usb_find_devices(); - + busses = usb_get_busses(); - + /* find vsllink_jtag device in usb bus */ - + for (bus = busses; bus; bus = bus->next) { for (dev = bus->devices; dev; dev = dev->next) { - if ((dev->descriptor.idVendor == vsllink_vid) && (dev->descriptor.idProduct == vsllink_pid)) + if ((dev->descriptor.idVendor == vsllink_usb_vid) && (dev->descriptor.idProduct == vsllink_usb_pid)) { result->usb_handle = usb_open(dev); - + if (NULL == result->usb_handle) + { + LOG_ERROR("failed to open %04X:%04X, not enough permissions?", vsllink_usb_vid, vsllink_usb_pid); + exit(-1); + } + /* usb_set_configuration required under win32 */ - usb_set_configuration(result->usb_handle, dev->config[0].bConfigurationValue); - usb_claim_interface(result->usb_handle, 0); - + ret = usb_set_configuration(result->usb_handle, dev->config[0].bConfigurationValue); + if (ret != 0) + { + LOG_ERROR("fail to set configuration to %d, %d returned, not enough permissions?", dev->config[0].bConfigurationValue, ret); + exit(-1); + } + ret = usb_claim_interface(result->usb_handle, vsllink_usb_interface); + if (ret != 0) + { + LOG_ERROR("fail to claim interface %d, %d returned", vsllink_usb_interface, ret); + exit(-1); + } + #if 0 - /* + /* * This makes problems under Mac OS X. And is not needed * under Windows. Hopefully this will not break a linux build */ usb_set_altinterface(result->usb_handle, 0); -#endif +#endif return result; } } } - + free(result); return NULL; } static void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag) { - usb_close(vsllink_jtag->usb_handle); + int ret; + + ret = usb_release_interface(vsllink_jtag->usb_handle, vsllink_usb_interface); + if (ret != 0) + { + LOG_ERROR("fail to release interface %d, %d returned", vsllink_usb_interface, ret); + exit(-1); + } + + ret = usb_close(vsllink_jtag->usb_handle); + if (ret != 0) + { + LOG_ERROR("fail to close usb, %d returned", ret); + exit(-1); + } + free(vsllink_jtag); } @@ -1362,7 +1858,7 @@ static void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag) static int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length) { int result; - + result = vsllink_usb_write(vsllink_jtag, out_length); if (result == out_length) { @@ -1392,18 +1888,18 @@ static int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int static int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length) { int result; - + if (out_length > VSLLINK_BufferSize) { LOG_ERROR("vsllink_jtag_write illegal out_length=%d (max=%d)", out_length, VSLLINK_BufferSize); return -1; } - - result = usb_bulk_write(vsllink_jtag->usb_handle, vsllink_bulkout, \ + + result = usb_bulk_write(vsllink_jtag->usb_handle, vsllink_usb_bulkout, \ (char *)vsllink_usb_out_buffer, out_length, VSLLINK_USB_TIMEOUT); - + DEBUG_JTAG_IO("vsllink_usb_write, out_length = %d, result = %d", out_length, result); - + #ifdef _DEBUG_USB_COMMS_ LOG_DEBUG("USB out:"); vsllink_debug_buffer(vsllink_usb_out_buffer, out_length); @@ -1419,11 +1915,11 @@ static int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length) /* Read data from USB into in_buffer. */ static int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag) { - int result = usb_bulk_read(vsllink_jtag->usb_handle, vsllink_bulkin, \ + int result = usb_bulk_read(vsllink_jtag->usb_handle, vsllink_usb_bulkin, \ (char *)vsllink_usb_in_buffer, VSLLINK_BufferSize, VSLLINK_USB_TIMEOUT); - + DEBUG_JTAG_IO("vsllink_usb_read, result = %d", result); - + #ifdef _DEBUG_USB_COMMS_ LOG_DEBUG("USB in:"); vsllink_debug_buffer(vsllink_usb_in_buffer, result); @@ -1440,7 +1936,7 @@ static void vsllink_debug_buffer(u8 *buffer, int length) char s[4]; int i; int j; - + for (i = 0; i < length; i += BYTES_PER_LINE) { snprintf(line, 5, "%04x", i); diff --git a/src/target/interface/vsllink.cfg b/src/target/interface/vsllink.cfg new file mode 100644 index 00000000..7c9de7fe --- /dev/null +++ b/src/target/interface/vsllink.cfg @@ -0,0 +1,25 @@ +# +# Versaloon Link -- VSLLink +# +# http://www.simonqian.com/en/Versaloon +# + +interface vsllink + +#vsllink_usb_vid 0x03EB +#vsllink_usb_pid 0x2103 +#vsllink_usb_bulkin 0x02 +#vsllink_usb_bulkout 0x02 +#vsllink_usb_interface 0 + +vsllink_usb_vid 0x0483 +vsllink_usb_pid 0x5740 +vsllink_usb_bulkin 0x02 +vsllink_usb_bulkout 0x03 +vsllink_usb_interface 1 + +# vsllink mode, dma or normal +# for low jtag_khz, use normal +# for high jtag_khz, use dma +#vsllink_mode dma +vsllink_mode normal |