#define SWD_CMD_PARK (0 << 7) /* not driven by host (pull high) */
/* followed by TRN, 3-bits of ACK, TRN */
-/* pbit16 holds precomputed parity bits for each nibble */
-#define pbit(parity, nibble) ((parity) << (nibble))
-
-static const uint16_t pbit16 =
- pbit(0, 0) | pbit(1, 1) | pbit(1, 2) | pbit(0, 3)
- | pbit(1, 4) | pbit(0, 5) | pbit(0, 6) | pbit(1, 7)
- | pbit(1, 8) | pbit(0, 9) | pbit(0, 0xa) | pbit(1, 0xb)
- | pbit(0, 0xc) | pbit(1, 0xd) | pbit(1, 0xe) | pbit(0, 0xf);
-
-#define nibble_parity(nibble) (pbit16 & pbit(1, (nibble)))
-
/**
* Construct a "cmd" byte, in lSB bit order, which swd_driver.read_reg()
* and swd_driver.write_reg() methods will use directly.
| ((regnum & 0xc) << 1);
/* 8 cmd bits 4:1 may be set */
- if (nibble_parity(cmd >> 1))
+ if (parity_u32(cmd))
cmd |= SWD_CMD_PARITY;
/* driver handles START, STOP, and TRN */
/*
* FOR NOW ... SWD driver ops are synchronous and return ACK
- * status ... no quueueing.
+ * status ... no queuing.
*
* Individual ops are request/response, and fast-fail permits much
* better fault handling. Upper layers may queue if desired.
*/
int (*write_reg)(uint8_t cmd, uint32_t value);
- /**
- * Synchronous block read of an AP or DP register.
- *
- * @param cmd with APnDP/RnW/addr/parity bits
- * @param number of reads from register to be executed
- * @param buffer to store data read from register
- *
- * @return SWD_ACK_* code for the transaction
- * or (negative) fault code
- */
- int (*read_block)(uint8_t cmd, uint32_t blocksize, uint8_t *buffer);
-
/**
* Configures data collection from the Single-wire
* trace (SWO) signal.