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arm_adi_v5: fix mem_ap_read_buf_u32() JTAG nastiness..

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Moved JTAG code out of transport-neutral file (arm_adi_v5.c) into
transport specific file (adi_v5_jtag.c).
Added ap_block_read to dap_ops interface (arm_adi_v5.h) to support
the move.

Change-Id: I796d3984f138aad052b97c77ac9c12ffd1158f74
Signed-off-by: mike brown <mike@theshedworks.org.uk>
Reviewed-on: http://openocd.zylin.com/1277
Tested-by: jenkins
Reviewed-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This commit is contained in:
mike brown
2013-03-18 17:19:14 +00:00
committed by Spencer Oliver
parent 0875e64ddb
commit 2a8a89edcb
3 changed files with 65 additions and 50 deletions
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40
src/target/arm_adi_v5.c
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@@ -539,13 +539,6 @@ int mem_ap_write_buf_u8(struct adiv5_dap *dap, const uint8_t *buffer, int count,
return retval;
}
/* FIXME don't import ... this is a temporary workaround for the
* mem_ap_read_buf_u32() mess, until it's no longer JTAG-specific.
*/
extern int adi_jtag_dp_scan(struct adiv5_dap *dap,
uint8_t instr, uint8_t reg_addr, uint8_t RnW,
uint8_t *outvalue, uint8_t *invalue, uint8_t *ack);
/**
* Synchronously read a block of 32-bit words into a buffer
* @param dap The DAP connected to the MEM-AP.
@@ -588,38 +581,7 @@ int mem_ap_read_buf_u32(struct adiv5_dap *dap, uint8_t *buffer,
if (retval != ERROR_OK)
return retval;
/* FIXME remove these three calls to adi_jtag_dp_scan(),
* so this routine becomes transport-neutral. Be careful
* not to cause performance problems with JTAG; would it
* suffice to loop over dap_queue_ap_read(), or would that
* be slower when JTAG is the chosen transport?
*/
/* Scan out first read */
retval = adi_jtag_dp_scan(dap, JTAG_DP_APACC, AP_REG_DRW,
DPAP_READ, 0, NULL, NULL);
if (retval != ERROR_OK)
return retval;
for (readcount = 0; readcount < blocksize - 1; readcount++) {
/* Scan out next read; scan in posted value for the
* previous one. Assumes read is acked "OK/FAULT",
* and CTRL_STAT says that meant "OK".
*/
retval = adi_jtag_dp_scan(dap, JTAG_DP_APACC, AP_REG_DRW,
DPAP_READ, 0, buffer + 4 * readcount,
&dap->ack);
if (retval != ERROR_OK)
return retval;
}
/* Scan in last posted value; RDBUFF has no other effect,
* assuming ack is OK/FAULT and CTRL_STAT says "OK".
*/
retval = adi_jtag_dp_scan(dap, JTAG_DP_DPACC, DP_RDBUFF,
DPAP_READ, 0, buffer + 4 * readcount,
&dap->ack);
if (retval != ERROR_OK)
return retval;
retval = dap_queue_ap_read_block(dap, AP_REG_DRW, blocksize, buffer);
retval = dap_run(dap);
if (retval != ERROR_OK) {