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remove TAP_SCAN_BYTES macro 

Use DIV_ROUND_UP(n, 8) instead of TAP_SCAN_BYTES macro.
This commit is contained in:
Zachary T Welch 2009-11-16 03:12:45 -08:00
parent a94748ec6d
commit 0535a92456
4 changed files with 9 additions and 11 deletions
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2
src/jtag/interface.c
View File

@ -413,7 +413,7 @@ tap_state_t jtag_debug_state_machine(const void *tms_buf, const void *tdi_buf,
tms_buffer = (const uint8_t *)tms_buf;
tdi_buffer = (const uint8_t *)tdi_buf;
tap_bytes = TAP_SCAN_BYTES(tap_bits);
tap_bytes = DIV_ROUND_UP(tap_bits, 8);
DEBUG_JTAG_IO("TAP/SM: TMS bits: %u (bytes: %u)", tap_bits, tap_bytes);
tap_out_bits = 0;

11
src/jtag/jlink.c
View File

@ -763,15 +763,16 @@ static int jlink_tap_execute(void)
if (!tap_length)
return ERROR_OK;
/* JLink returns an extra NULL in packet when size of in message is a multiple of 64, creates problems with usb comms */
/* WARNING This will interfere with tap state counting */
while ((TAP_SCAN_BYTES(tap_length)%64) == 0)
/* JLink returns an extra NULL in packet when size of incoming
* message is a multiple of 64, creates problems with USB comms.
* WARNING: This will interfere with tap state counting. */
while ((DIV_ROUND_UP(tap_length, 8) % 64) == 0)
{
jlink_tap_append_step((tap_get_state() == TAP_RESET)?1:0, 0);
}
// number of full bytes (plus one if some would be left over)
byte_length = TAP_SCAN_BYTES(tap_length);
byte_length = DIV_ROUND_UP(tap_length, 8);
bool use_jtag3 = jlink_hw_jtag_version >= 3;
usb_out_buffer[0] = use_jtag3 ? EMU_CMD_HW_JTAG3 : EMU_CMD_HW_JTAG2;
@ -808,7 +809,7 @@ static int jlink_tap_execute(void)
DEBUG_JTAG_IO("pending scan result, length = %d", length);
#ifdef _DEBUG_USB_COMMS_
jlink_debug_buffer(buffer, TAP_SCAN_BYTES(length));
jlink_debug_buffer(buffer, DIV_ROUND_UP(length, 8));
#endif
if (jtag_read_buffer(buffer, command) != ERROR_OK)

3
src/jtag/jtag.h
View File

@ -46,9 +46,6 @@
*/
#define DIM(x) (sizeof(x)/sizeof((x)[0]))
/** Calculate the number of bytes required to hold @a n TAP scan bits */
#define TAP_SCAN_BYTES(n) DIV_ROUND_UP(n, 8)
/*-----</Macros>-------------------------------------------------*/
/**

4
src/jtag/minidriver.h
View File

@ -58,7 +58,7 @@ static inline void interface_jtag_add_scan_check_alloc(struct scan_field *field)
/* We're executing this synchronously, so try to use local storage. */
if (field->num_bits > 32)
{
unsigned num_bytes = TAP_SCAN_BYTES(field->num_bits);
unsigned num_bytes = DIV_ROUND_UP(field->num_bits, 8);
field->in_value = (uint8_t *)malloc(num_bytes);
field->allocated = 1;
}
@ -77,7 +77,7 @@ static inline void interface_jtag_alloc_in_value32(struct scan_field *field)
static inline void interface_jtag_add_scan_check_alloc(struct scan_field *field)
{
unsigned num_bytes = TAP_SCAN_BYTES(field->num_bits);
unsigned num_bytes = DIV_ROUND_UP(field->num_bits, 8);
field->in_value = (uint8_t *)cmd_queue_alloc(num_bytes);
}