From 26fadc7ef7980d43515ff8c0b690fd675874fa9a Mon Sep 17 00:00:00 2001 From: Tim Newsome Date: Mon, 22 Jan 2018 14:33:21 -0800 Subject: Update parport to return errors. Change-Id: I6c6bf75809cd3222c7680e10ac6ee6073050ed07 --- src/jtag/drivers/parport.c | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) (limited to 'src') diff --git a/src/jtag/drivers/parport.c b/src/jtag/drivers/parport.c index c9e3316..14fa9df 100644 --- a/src/jtag/drivers/parport.c +++ b/src/jtag/drivers/parport.c @@ -116,7 +116,7 @@ static unsigned long dataport; static unsigned long statusport; #endif -static int parport_read(void) +static bb_value_t parport_read(void) { int data = 0; @@ -127,9 +127,9 @@ static int parport_read(void) #endif if ((data ^ cable->INPUT_INVERT) & cable->TDO_MASK) - return 1; + return BB_HIGH; else - return 0; + return BB_LOW; } static inline void parport_write_data(void) @@ -148,7 +148,7 @@ static inline void parport_write_data(void) #endif } -static void parport_write(int tck, int tms, int tdi) +static int parport_write(int tck, int tms, int tdi) { int i = wait_states + 1; @@ -169,10 +169,12 @@ static void parport_write(int tck, int tms, int tdi) while (i-- > 0) parport_write_data(); + + return ERROR_OK; } /* (1) assert or (0) deassert reset lines */ -static void parport_reset(int trst, int srst) +static int parport_reset(int trst, int srst) { LOG_DEBUG("trst: %i, srst: %i", trst, srst); @@ -187,10 +189,12 @@ static void parport_reset(int trst, int srst) dataport_value &= ~cable->SRST_MASK; parport_write_data(); + + return ERROR_OK; } /* turn LED on parport adapter on (1) or off (0) */ -static void parport_led(int on) +static int parport_led(int on) { if (on) dataport_value |= cable->LED_MASK; @@ -198,6 +202,8 @@ static void parport_led(int on) dataport_value &= ~cable->LED_MASK; parport_write_data(); + + return ERROR_OK; } static int parport_speed(int speed) @@ -365,9 +371,12 @@ static int parport_init(void) #endif /* PARPORT_USE_PPDEV */ - parport_reset(0, 0); - parport_write(0, 0, 0); - parport_led(1); + if (parport_reset(0, 0) != ERROR_OK) + return ERROR_FAIL; + if (parport_write(0, 0, 0) != ERROR_OK) + return ERROR_FAIL; + if (parport_led(1) != ERROR_OK) + return ERROR_FAIL; bitbang_interface = &parport_bitbang; @@ -376,7 +385,8 @@ static int parport_init(void) static int parport_quit(void) { - parport_led(0); + if (parport_led(0) != ERROR_OK) + return ERROR_FAIL; if (parport_exit) { dataport_value = cable->PORT_EXIT; -- cgit v1.1