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adiv5_jtagdp: code format

This commit is contained in:
Rafael Silva 2022-08-05 23:02:27 +01:00 committed by Rachel Mant
parent 0fbb6921b9
commit c04b98435a
1 changed files with 21 additions and 24 deletions
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45
src/target/adiv5_jtagdp.c
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@ -29,20 +29,20 @@
#include "jtagtap.h" #include "jtagtap.h"
#include "morse.h" #include "morse.h"
#define JTAGDP_ACK_OK 0x02 #define JTAGDP_ACK_OK 0x02U
#define JTAGDP_ACK_WAIT 0x01 #define JTAGDP_ACK_WAIT 0x01U
/* 35-bit registers that control the ADIv5 DP */ /* 35-bit registers that control the ADIv5 DP */
#define IR_ABORT 0x8 #define IR_ABORT 0x8U
#define IR_DPACC 0xA #define IR_DPACC 0xAU
#define IR_APACC 0xB #define IR_APACC 0xBU
static uint32_t adiv5_jtagdp_error(ADIv5_DP_t *dp); static uint32_t adiv5_jtagdp_error(ADIv5_DP_t *dp);
void adiv5_jtag_dp_handler(uint8_t jd_index) void adiv5_jtag_dp_handler(uint8_t jd_index)
{ {
ADIv5_DP_t *dp = (void*)calloc(1, sizeof(*dp)); ADIv5_DP_t *dp = calloc(1, sizeof(*dp));
if (!dp) { /* calloc failed: heap exhaustion */ if (!dp) { /* calloc failed: heap exhaustion */
DEBUG_WARN("calloc: failed in %s\n", __func__); DEBUG_WARN("calloc: failed in %s\n", __func__);
return; return;
} }
@ -50,7 +50,7 @@ void adiv5_jtag_dp_handler(uint8_t jd_index)
dp->dp_jd_index = jd_index; dp->dp_jd_index = jd_index;
/* JTAG routine passes IDCODE to port ID and version = 0 */ /* JTAG routine passes IDCODE to port ID and version = 0 */
dp->debug_port_id = jtag_devs[jd_index].jd_idcode; dp->debug_port_id = jtag_devs[jd_index].jd_idcode;
if ((PC_HOSTED == 0 ) || (!platform_jtag_dp_init(dp))) { if ((PC_HOSTED == 0) || (!platform_jtag_dp_init(dp))) {
dp->dp_read = fw_adiv5_jtagdp_read; dp->dp_read = fw_adiv5_jtagdp_read;
dp->error = adiv5_jtagdp_error; dp->error = adiv5_jtagdp_error;
dp->low_access = fw_adiv5_jtagdp_low_access; dp->low_access = fw_adiv5_jtagdp_low_access;
@ -62,43 +62,40 @@ void adiv5_jtag_dp_handler(uint8_t jd_index)
uint32_t fw_adiv5_jtagdp_read(ADIv5_DP_t *dp, uint16_t addr) uint32_t fw_adiv5_jtagdp_read(ADIv5_DP_t *dp, uint16_t addr)
{ {
fw_adiv5_jtagdp_low_access(dp, ADIV5_LOW_READ, addr, 0); fw_adiv5_jtagdp_low_access(dp, ADIV5_LOW_READ, addr, 0);
return fw_adiv5_jtagdp_low_access(dp, ADIV5_LOW_READ, return fw_adiv5_jtagdp_low_access(dp, ADIV5_LOW_READ, ADIV5_DP_RDBUFF, 0);
ADIV5_DP_RDBUFF, 0);
} }
static uint32_t adiv5_jtagdp_error(ADIv5_DP_t *dp) static uint32_t adiv5_jtagdp_error(ADIv5_DP_t *dp)
{ {
fw_adiv5_jtagdp_low_access(dp, ADIV5_LOW_READ, ADIV5_DP_CTRLSTAT, 0); fw_adiv5_jtagdp_low_access(dp, ADIV5_LOW_READ, ADIV5_DP_CTRLSTAT, 0);
return fw_adiv5_jtagdp_low_access(dp, ADIV5_LOW_WRITE, return fw_adiv5_jtagdp_low_access(dp, ADIV5_LOW_WRITE, ADIV5_DP_CTRLSTAT, 0xf0000032U) & 0x32U;
ADIV5_DP_CTRLSTAT, 0xF0000032) & 0x32;
} }
uint32_t fw_adiv5_jtagdp_low_access(ADIv5_DP_t *dp, uint8_t RnW, uint32_t fw_adiv5_jtagdp_low_access(ADIv5_DP_t *dp, uint8_t RnW, uint16_t addr, uint32_t value)
uint16_t addr, uint32_t value)
{ {
bool APnDP = addr & ADIV5_APnDP; const bool APnDP = addr & ADIV5_APnDP;
addr &= 0xff; addr &= 0xff;
uint64_t request, response;
uint8_t ack;
platform_timeout timeout;
request = ((uint64_t)value << 3) | ((addr >> 1) & 0x06) | (RnW?1:0); const uint64_t request = ((uint64_t)value << 3U) | ((addr >> 1U) & 0x06U) | (RnW ? 1U : 0U);
uint64_t response;
uint8_t ack;
jtag_dev_write_ir(&jtag_proc, dp->dp_jd_index, APnDP ? IR_APACC : IR_DPACC); jtag_dev_write_ir(&jtag_proc, dp->dp_jd_index, APnDP ? IR_APACC : IR_DPACC);
platform_timeout timeout;
platform_timeout_set(&timeout, 250); platform_timeout_set(&timeout, 250);
do { do {
jtag_dev_shift_dr(&jtag_proc, dp->dp_jd_index, (uint8_t*)&response, jtag_dev_shift_dr(&jtag_proc, dp->dp_jd_index, (uint8_t *)&response, (uint8_t *)&request, 35);
(uint8_t*)&request, 35);
ack = response & 0x07; ack = response & 0x07;
} while(!platform_timeout_is_expired(&timeout) && (ack == JTAGDP_ACK_WAIT)); } while (!platform_timeout_is_expired(&timeout) && ack == JTAGDP_ACK_WAIT);
if (ack == JTAGDP_ACK_WAIT) { if (ack == JTAGDP_ACK_WAIT) {
dp->abort(dp, ADIV5_DP_ABORT_DAPABORT); dp->abort(dp, ADIV5_DP_ABORT_DAPABORT);
dp->fault = 1; dp->fault = 1;
return 0; return 0;
} }
if((ack != JTAGDP_ACK_OK)) if ((ack != JTAGDP_ACK_OK))
raise_exception(EXCEPTION_ERROR, "JTAG-DP invalid ACK"); raise_exception(EXCEPTION_ERROR, "JTAG-DP invalid ACK");
return (uint32_t)(response >> 3); return (uint32_t)(response >> 3);
@ -108,5 +105,5 @@ void adiv5_jtagdp_abort(ADIv5_DP_t *dp, uint32_t abort)
{ {
uint64_t request = (uint64_t)abort << 3; uint64_t request = (uint64_t)abort << 3;
jtag_dev_write_ir(&jtag_proc, dp->dp_jd_index, IR_ABORT); jtag_dev_write_ir(&jtag_proc, dp->dp_jd_index, IR_ABORT);
jtag_dev_shift_dr(&jtag_proc, dp->dp_jd_index, NULL, (const uint8_t*)&request, 35); jtag_dev_shift_dr(&jtag_proc, dp->dp_jd_index, NULL, (const uint8_t *)&request, 35);
} }