From b4aa144c326e2f86f52ac48d4cb560f88a1f2b97 Mon Sep 17 00:00:00 2001 From: Antonio Borneo Date: Thu, 11 Nov 2021 16:44:27 +0100 Subject: [PATCH] drivers/bitbang: add support to switch to/from dormant state While there, replace the SWD_CMD_PARK macro to the magic number. Change-Id: Id9094dcb2b010b9e894a5ed9e4a99d2287e5969c Signed-off-by: Antonio Borneo Reviewed-on: https://review.openocd.org/c/openocd/+/6691 Tested-by: jenkins Reviewed-by: Tomas Vanek --- src/jtag/drivers/bitbang.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/src/jtag/drivers/bitbang.c b/src/jtag/drivers/bitbang.c index 5c4febb201..d202a05961 100644 --- a/src/jtag/drivers/bitbang.c +++ b/src/jtag/drivers/bitbang.c @@ -434,10 +434,26 @@ static int bitbang_swd_switch_seq(enum swd_special_seq seq) LOG_DEBUG("JTAG-to-SWD"); bitbang_swd_exchange(false, (uint8_t *)swd_seq_jtag_to_swd, 0, swd_seq_jtag_to_swd_len); break; + case JTAG_TO_DORMANT: + LOG_DEBUG("JTAG-to-DORMANT"); + bitbang_swd_exchange(false, (uint8_t *)swd_seq_jtag_to_dormant, 0, swd_seq_jtag_to_dormant_len); + break; case SWD_TO_JTAG: LOG_DEBUG("SWD-to-JTAG"); bitbang_swd_exchange(false, (uint8_t *)swd_seq_swd_to_jtag, 0, swd_seq_swd_to_jtag_len); break; + case SWD_TO_DORMANT: + LOG_DEBUG("SWD-to-DORMANT"); + bitbang_swd_exchange(false, (uint8_t *)swd_seq_swd_to_dormant, 0, swd_seq_swd_to_dormant_len); + break; + case DORMANT_TO_SWD: + LOG_DEBUG("DORMANT-to-SWD"); + bitbang_swd_exchange(false, (uint8_t *)swd_seq_dormant_to_swd, 0, swd_seq_dormant_to_swd_len); + break; + case DORMANT_TO_JTAG: + LOG_DEBUG("DORMANT-to-JTAG"); + bitbang_swd_exchange(false, (uint8_t *)swd_seq_dormant_to_jtag, 0, swd_seq_dormant_to_jtag_len); + break; default: LOG_ERROR("Sequence %d not supported", seq); return ERROR_FAIL; @@ -465,7 +481,7 @@ static void bitbang_swd_read_reg(uint8_t cmd, uint32_t *value, uint32_t ap_delay for (;;) { uint8_t trn_ack_data_parity_trn[DIV_ROUND_UP(4 + 3 + 32 + 1 + 4, 8)]; - cmd |= SWD_CMD_START | (1 << 7); + cmd |= SWD_CMD_START | SWD_CMD_PARK; bitbang_swd_exchange(false, &cmd, 0, 8); bitbang_interface->swdio_drive(false); @@ -526,7 +542,7 @@ static void bitbang_swd_write_reg(uint8_t cmd, uint32_t value, uint32_t ap_delay buf_set_u32(trn_ack_data_parity_trn, 1 + 3 + 1, 32, value); buf_set_u32(trn_ack_data_parity_trn, 1 + 3 + 1 + 32, 1, parity_u32(value)); - cmd |= SWD_CMD_START | (1 << 7); + cmd |= SWD_CMD_START | SWD_CMD_PARK; bitbang_swd_exchange(false, &cmd, 0, 8); bitbang_interface->swdio_drive(false); -- 2.30.2