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Check for 10-bit address over flow when auto-incrementing. 

Clean up whitespace.
This commit is contained in:
Gareth McMullin 2012-11-21 09:50:50 +13:00
parent 8f04241aa8
commit 1d16d6c34c
1 changed files with 75 additions and 35 deletions
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46
src/adiv5.c
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@ -187,6 +187,7 @@ static int
ap_mem_read_words(struct target_s *target, uint32_t *dest, uint32_t src, int len)
{
ADIv5_AP_t *ap = adiv5_target_ap(target);
uint32_t osrc = src;
len >>= 2;
@ -195,10 +196,20 @@ ap_mem_read_words(struct target_s *target, uint32_t *dest, uint32_t src, int len
ADIV5_AP_TAR, src);
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP, ADIV5_LOW_READ,
ADIV5_AP_DRW, 0);
while(--len)
while(--len) {
*dest++ = adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP,
ADIV5_LOW_READ, ADIV5_AP_DRW, 0);
src += 4;
/* Check for 10 bit address overflow */
if ((src ^ osrc) & 0xfffffc00) {
osrc = src;
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP,
ADIV5_LOW_WRITE, ADIV5_AP_TAR, src);
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP,
ADIV5_LOW_READ, ADIV5_AP_DRW, 0);
}
}
*dest++ = adiv5_dp_low_access(ap->dp, ADIV5_LOW_DP, ADIV5_LOW_READ,
ADIV5_DP_RDBUFF, 0);
@ -209,7 +220,8 @@ static int
ap_mem_read_bytes(struct target_s *target, uint8_t *dest, uint32_t src, int len)
{
ADIv5_AP_t *ap = adiv5_target_ap(target);
uint32_t tmp = src;
uint32_t tmp;
uint32_t osrc = src;
adiv5_ap_write(ap, ADIV5_AP_CSW, 0xA2000050);
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP, ADIV5_LOW_WRITE,
@ -219,6 +231,16 @@ ap_mem_read_bytes(struct target_s *target, uint8_t *dest, uint32_t src, int len)
while(--len) {
tmp = adiv5_dp_low_access(ap->dp, 1, 1, ADIV5_AP_DRW, 0);
*dest++ = (tmp >> ((src++ & 0x3) << 3) & 0xFF);
src++;
/* Check for 10 bit address overflow */
if ((src ^ osrc) & 0xfffffc00) {
osrc = src;
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP,
ADIV5_LOW_WRITE, ADIV5_AP_TAR, src);
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP,
ADIV5_LOW_READ, ADIV5_AP_DRW, 0);
}
}
tmp = adiv5_dp_low_access(ap->dp, 0, 1, ADIV5_DP_RDBUFF, 0);
*dest++ = (tmp >> ((src++ & 0x3) << 3) & 0xFF);
@ -231,15 +253,24 @@ static int
ap_mem_write_words(struct target_s *target, uint32_t dest, const uint32_t *src, int len)
{
ADIv5_AP_t *ap = adiv5_target_ap(target);
uint32_t odest = dest;
len >>= 2;
adiv5_ap_write(ap, ADIV5_AP_CSW, 0xA2000052);
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP, ADIV5_LOW_WRITE,
ADIV5_AP_TAR, dest);
while(len--)
while(len--) {
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP, ADIV5_LOW_WRITE,
ADIV5_AP_DRW, *src++);
dest += 4;
/* Check for 10 bit address overflow */
if ((dest ^ odest) & 0xfffffc00) {
odest = dest;
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP,
ADIV5_LOW_WRITE, ADIV5_AP_TAR, dest);
}
}
return 0;
}
@ -248,6 +279,7 @@ static int
ap_mem_write_bytes(struct target_s *target, uint32_t dest, const uint8_t *src, int len)
{
ADIv5_AP_t *ap = adiv5_target_ap(target);
uint32_t odest = dest;
adiv5_ap_write(ap, ADIV5_AP_CSW, 0xA2000050);
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP, ADIV5_LOW_WRITE,
@ -256,6 +288,14 @@ ap_mem_write_bytes(struct target_s *target, uint32_t dest, const uint8_t *src, i
uint32_t tmp = (uint32_t)*src++ << ((dest++ & 3) << 3);
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP, ADIV5_LOW_WRITE,
ADIV5_AP_DRW, tmp);
dest ++;
/* Check for 10 bit address overflow */
if ((dest ^ odest) & 0xfffffc00) {
odest = dest;
adiv5_dp_low_access(ap->dp, ADIV5_LOW_AP,
ADIV5_LOW_WRITE, ADIV5_AP_TAR, dest);
}
}
return 0;
}