From cd7f89f6bcc954da3ffa5b9b9eca49c32e152e7d Mon Sep 17 00:00:00 2001 From: zwelch Date: Tue, 9 Jun 2009 08:40:10 +0000 Subject: Add get and set accessors for jtag_speed: - Setter calls the interface driver callback to improve core encapsulation. - Use getter in standard JTAG interface drivers and ZY1000 minidriver. git-svn-id: svn://svn.berlios.de/openocd/trunk@2159 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/jtag/amt_jtagaccel.c | 4 +++- src/jtag/core.c | 12 ++++++++++++ src/jtag/ft2232.c | 2 +- src/jtag/gw16012.c | 2 +- src/jtag/jlink.c | 2 +- src/jtag/jtag.h | 12 +++++++++++- src/jtag/parport.c | 2 +- src/jtag/presto.c | 2 +- src/jtag/rlink/rlink.c | 2 +- src/jtag/tcl.c | 15 ++++++--------- src/jtag/zy1000/zy1000.c | 2 +- 11 files changed, 39 insertions(+), 18 deletions(-) (limited to 'src/jtag') diff --git a/src/jtag/amt_jtagaccel.c b/src/jtag/amt_jtagaccel.c index b19fae17..4071c25c 100644 --- a/src/jtag/amt_jtagaccel.c +++ b/src/jtag/amt_jtagaccel.c @@ -187,6 +187,7 @@ static void amt_jtagaccel_state_move(void) aw_scan_tms_5 = 0x40 | (tms_scan[0] & 0x1f); AMT_AW(aw_scan_tms_5); + int jtag_speed = jtag_get_speed(); if (jtag_speed > 3 || rtck_enabled) amt_wait_scan_busy(); @@ -244,6 +245,7 @@ static void amt_jtagaccel_scan(bool ir_scan, enum scan_type type, u8 *buffer, in u8 dr_tdo; u8 aw_tms_scan; u8 tms_scan[2]; + int jtag_speed = jtag_get_speed(); if (ir_scan) amt_jtagaccel_end_state(TAP_IRSHIFT); @@ -496,7 +498,7 @@ static int amt_jtagaccel_init(void) aw_control_fsm |= 0x04; AMT_AW(aw_control_fsm); - amt_jtagaccel_speed(jtag_speed); + amt_jtagaccel_speed(jtag_get_speed()); if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) aw_control_rst &= ~0x8; diff --git a/src/jtag/core.c b/src/jtag/core.c index 5edcce22..f6db00a5 100644 --- a/src/jtag/core.c +++ b/src/jtag/core.c @@ -1153,6 +1153,18 @@ unsigned jtag_get_speed_khz(void) { return speed_khz; } +int jtag_get_speed(void) +{ + return jtag_speed; +} + +int jtag_set_speed(int speed) +{ + jtag_speed = speed; + /* this command can be called during CONFIG, + * in which case jtag isn't initialized */ + return jtag ? jtag->speed(speed) : ERROR_OK; +} void jtag_set_verify(bool enable) { diff --git a/src/jtag/ft2232.c b/src/jtag/ft2232.c index ae3bd863..734833b1 100644 --- a/src/jtag/ft2232.c +++ b/src/jtag/ft2232.c @@ -2099,7 +2099,7 @@ static int ft2232_init(void) if (layout->init() != ERROR_OK) return ERROR_JTAG_INIT_FAILED; - ft2232_speed(jtag_speed); + ft2232_speed(jtag_get_speed()); buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */ if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1)) diff --git a/src/jtag/gw16012.c b/src/jtag/gw16012.c index a89a5f7e..0ea66340 100644 --- a/src/jtag/gw16012.c +++ b/src/jtag/gw16012.c @@ -557,7 +557,7 @@ static int gw16012_init(void) gw16012_input(&status_port); gw16012_msb = (status_port & 0x80) ^ 0x80; - gw16012_speed(jtag_speed); + gw16012_speed(jtag_get_speed()); gw16012_reset(0, 0); return ERROR_OK; diff --git a/src/jtag/jlink.c b/src/jtag/jlink.c index 22b058df..ce0489c0 100644 --- a/src/jtag/jlink.c +++ b/src/jtag/jlink.c @@ -340,7 +340,7 @@ static int jlink_init(void) jlink_reset(0, 0); jtag_sleep(3000); jlink_tap_init(); - jlink_speed(jtag_speed); + jlink_speed(jtag_get_speed()); /* v5/6 jlink seems to have an issue if the first tap move * is not divisible by 8, so we send a TLR on first power up */ diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index fd4953ec..0e21738e 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -255,7 +255,17 @@ typedef struct jtag_event_callback_s struct jtag_event_callback_s* next; } jtag_event_callback_t; -extern int jtag_speed; +/// @returns The current JTAG speed setting. +int jtag_get_speed(void); +/** + * Set the JTAG speed. This routine will call the underlying + * interface @c speed callback, if the interface has been initialized. + * @param speed The new speed setting. + * @returns ERROR_OK during configuration or on success, or an error + * code returned from the interface @c speed callback. + */ +int jtag_set_speed(int speed); + extern int jtag_speed_post_reset; enum reset_types { diff --git a/src/jtag/parport.c b/src/jtag/parport.c index 3f026b04..4ee2202d 100644 --- a/src/jtag/parport.c +++ b/src/jtag/parport.c @@ -189,7 +189,7 @@ static __inline__ void parport_write_data(void) static void parport_write(int tck, int tms, int tdi) { - int i = jtag_speed + 1; + int i = jtag_get_speed() + 1; if (tck) dataport_value |= cable->TCK_MASK; diff --git a/src/jtag/presto.c b/src/jtag/presto.c index 6123259c..125658be 100644 --- a/src/jtag/presto.c +++ b/src/jtag/presto.c @@ -787,7 +787,7 @@ static int presto_jtag_init(void) LOG_INFO("PRESTO open, serial number '%s'", presto->serial); /* use JTAG speed setting from configuration file */ - presto_jtag_speed(jtag_speed); + presto_jtag_speed(jtag_get_speed()); bitq_interface = &presto_bitq; return ERROR_OK; diff --git a/src/jtag/rlink/rlink.c b/src/jtag/rlink/rlink.c index f47e189c..121de01f 100644 --- a/src/jtag/rlink/rlink.c +++ b/src/jtag/rlink/rlink.c @@ -1849,7 +1849,7 @@ int rlink_init(void) tap_state_queue_init(); dtc_queue_init(); - rlink_speed(jtag_speed); + rlink_speed(jtag_get_speed()); rlink_reset(0, 0); return ERROR_OK; diff --git a/src/jtag/tcl.c b/src/jtag/tcl.c index 8836b484..ed24498b 100644 --- a/src/jtag/tcl.c +++ b/src/jtag/tcl.c @@ -960,14 +960,11 @@ static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cm LOG_DEBUG("handle jtag speed"); int cur_speed = 0; - cur_speed = jtag_speed = strtoul(args[0], NULL, 0); + cur_speed = strtoul(args[0], NULL, 0); + retval = jtag_set_speed(cur_speed); - /* this command can be called during CONFIG, - * in which case jtag isn't initialized */ - if (jtag) - retval = jtag->speed(cur_speed); } - command_print(cmd_ctx, "jtag_speed: %d", jtag_speed); + command_print(cmd_ctx, "jtag_speed: %d", jtag_get_speed()); return retval; } @@ -994,9 +991,9 @@ static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, jtag_set_speed_khz(0); return retval; } - cur_speed = jtag_speed = speed_div1; + cur_speed = speed_div1; - retval = jtag->speed(cur_speed); + retval = jtag_set_speed(cur_speed); } else hasKHz = true; @@ -1005,7 +1002,7 @@ static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, cur_speed = jtag_get_speed_khz(); if (jtag != NULL) { - retval = jtag->speed_div(jtag_speed, &cur_speed); + retval = jtag->speed_div(jtag_get_speed(), &cur_speed); if (ERROR_OK != retval) return retval; } diff --git a/src/jtag/zy1000/zy1000.c b/src/jtag/zy1000/zy1000.c index ad148f1d..05bbd4c5 100644 --- a/src/jtag/zy1000/zy1000.c +++ b/src/jtag/zy1000/zy1000.c @@ -356,7 +356,7 @@ int zy1000_init(void) /* deassert resets. Important to avoid infinite loop waiting for SRST to deassert */ zy1000_reset(0, 0); - zy1000_speed(jtag_speed); + zy1000_speed(jtag_get_speed()); return ERROR_OK; } -- cgit v1.2.3