X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farm_jtag.h;h=e90abfe04353a240e3779c9693c4518b9f153743;hp=11f6bd611249e2fd6ec2f79f65aadb21c7abd3b4;hb=f1f8d9a6c9b1fd35d79627b568faa2409f13311f;hpb=a28eaa85f73759bb189a46308642502c9fa5aa4b diff --git a/src/target/arm_jtag.h b/src/target/arm_jtag.h index 11f6bd6112..e90abfe043 100644 --- a/src/target/arm_jtag.h +++ b/src/target/arm_jtag.h @@ -2,7 +2,7 @@ * Copyright (C) 2005 by Dominic Rath * * Dominic.Rath@gmx.de * * * - * Copyright (C) 2007,2008 Øyvind Harboe * + * Copyright (C) 2007-2010 Øyvind Harboe * * oyvind.harboe@zylin.com * * * * This program is free software; you can redistribute it and/or modify * @@ -23,39 +23,69 @@ #ifndef ARM_JTAG #define ARM_JTAG -#include "types.h" -#include "jtag.h" +#include -typedef struct arm_jtag_s +struct arm_jtag { - jtag_tap_t *tap; - - int scann_size; - u32 scann_instr; - int cur_scan_chain; - - u32 intest_instr; -} arm_jtag_t; - -extern int arm_jtag_set_instr(arm_jtag_t *jtag_info, u32 new_instr, in_handler_t handler); -extern int arm_jtag_scann(arm_jtag_t *jtag_info, u32 new_scan_chain); -extern int arm_jtag_setup_connection(arm_jtag_t *jtag_info); - -/* JTAG buffers to host, be and le buffers, flipping variants */ -int arm_jtag_buf_to_u32_flip(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_le32_flip(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_le16_flip(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_be32_flip(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_be16_flip(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_8_flip(u8 *in_buf, void *priv, struct scan_field_s *field); - -/* JTAG buffers to host, be and le buffers */ -int arm_jtag_buf_to_u32(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_le32(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_le16(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_be32(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_be16(u8 *in_buf, void *priv, struct scan_field_s *field); -int arm_jtag_buf_to_8(u8 *in_buf, void *priv, struct scan_field_s *field); + struct jtag_tap *tap; + + uint32_t scann_size; + uint32_t scann_instr; + uint32_t cur_scan_chain; + + uint32_t intest_instr; +}; + +int arm_jtag_set_instr_inner(struct arm_jtag *jtag_info, uint32_t new_instr, + void *no_verify_capture, + tap_state_t end_state); +static inline int arm_jtag_set_instr(struct arm_jtag *jtag_info, + uint32_t new_instr, void *no_verify_capture, tap_state_t end_state) +{ + /* inline most common code path */ + struct jtag_tap *tap; + tap = jtag_info->tap; + assert (tap != NULL); + + if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr) + { + return arm_jtag_set_instr_inner(jtag_info, new_instr, no_verify_capture, end_state); + } + + return ERROR_OK; + +} + + +int arm_jtag_scann_inner(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state); +static inline int arm_jtag_scann(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state) +{ + /* inline most common code path */ + int retval = ERROR_OK; + if (jtag_info->cur_scan_chain != new_scan_chain) + { + return arm_jtag_scann_inner(jtag_info, new_scan_chain, end_state); + } + + return retval; +} + + +int arm_jtag_setup_connection(struct arm_jtag *jtag_info); + +/* use this as a static so we can inline it in -O3 and refer to it via a pointer */ +static __inline__ void arm7flip32(jtag_callback_data_t arg) +{ + uint8_t *in = (uint8_t *)arg; + *((uint32_t *)arg) = flip_u32(le_to_h_u32(in), 32); +} + +static __inline__ void arm_le_to_h_u32(jtag_callback_data_t arg) +{ + uint8_t *in = (uint8_t *)arg; + *((uint32_t *)arg) = le_to_h_u32(in); +} + #endif /* ARM_JTAG */