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drivers/cmsis-dap: update for newest protocol version 

The capabilities INFO command can now return two bytes, without this
patch, the capabilities would simply not be read and left as 0 (i.e. no
capabilities).

cf. https://arm-software.github.io/CMSIS_5/DAP/html/group__DAP__Info.html ;
116866fd74/CMSIS/DAP/Firmware/Source/DAP.c (L100-L111)

Change-Id: Ibd894971edf1c120cae08089e5515ce5e9972323
Signed-off-by: PoroCYon <porocyon@titandemo.org>
Reviewed-on: http://openocd.zylin.com/6373
Tested-by: jenkins
Reviewed-by: Andrzej Sierżęga <asier70@gmail.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
PoroCYon 2021-07-21 04:17:08 +02:00 committed by Antonio Borneo
parent d94e1ffef0
commit beff3de2ce
2 changed files with 29 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
src/jtag/drivers/cmsis_dap.c
View File

@ -106,6 +106,12 @@ static bool swd_mode;
#define INFO_CAPS_JTAG BIT(1)
#define INFO_CAPS_SWO_UART BIT(2)
#define INFO_CAPS_SWO_MANCHESTER BIT(3)
#define INFO_CAPS_ATOMIC_CMDS BIT(4)
#define INFO_CAPS_TEST_DOMAIN_TIMER BIT(5)
#define INFO_CAPS_SWO_STREAMING_TRACE BIT(6)
#define INFO_CAPS_UART_PORT BIT(7)
#define INFO_CAPS_USB_COM_PORT BIT(8)
#define INFO_CAPS__NUM_CAPS 9
/* CMD_LED */
#define LED_ID_CONNECT 0x00
@ -203,11 +209,16 @@ static bool swd_mode;
/* CMSIS-DAP Vendor Commands
* None as yet... */
static const char * const info_caps_str[] = {
"SWD Supported",
"JTAG Supported",
"SWO-UART Supported",
"SWO-MANCHESTER Supported"
static const char * const info_caps_str[INFO_CAPS__NUM_CAPS] = {
"SWD supported",
"JTAG supported",
"SWO-UART supported",
"SWO-MANCHESTER supported",
"Atomic commands supported",
"Test domain timer supported",
"SWO streaming trace supported",
"UART communication port supported",
"UART via USB COM port supported",
};
struct pending_transfer_result {
@ -1016,19 +1027,17 @@ static int cmsis_dap_get_caps_info(void)
if (retval != ERROR_OK)
return retval;
if (data[0] == 1) {
uint8_t caps = data[1];
if (data[0] == 1 || data[0] == 2) {
uint16_t caps = data[1];
if (data[0] == 2)
caps |= (uint16_t)data[2] << 8;
cmsis_dap_handle->caps = caps;
if (caps & INFO_CAPS_SWD)
LOG_INFO("CMSIS-DAP: %s", info_caps_str[0]);
if (caps & INFO_CAPS_JTAG)
LOG_INFO("CMSIS-DAP: %s", info_caps_str[1]);
if (caps & INFO_CAPS_SWO_UART)
LOG_INFO("CMSIS-DAP: %s", info_caps_str[2]);
if (caps & INFO_CAPS_SWO_MANCHESTER)
LOG_INFO("CMSIS-DAP: %s", info_caps_str[3]);
for (int i = 0; i < INFO_CAPS__NUM_CAPS; ++i) {
if (caps & BIT(i))
LOG_INFO("CMSIS-DAP: %s", info_caps_str[i]);
}
}
return ERROR_OK;

2
src/jtag/drivers/cmsis_dap.h
View File

@ -16,7 +16,7 @@ struct cmsis_dap {
uint16_t packet_buffer_size;
uint8_t *command;
uint8_t *response;
uint8_t caps;
uint16_t caps;
uint8_t mode;
uint32_t swo_buf_sz;
bool trace_enabled;