* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "dsp563xx.h"
#include "dsp563xx_once.h"
+#define JTAG_STATUS_STATIC_MASK 0x03
+#define JTAG_STATUS_STATIC_VALUE 0x01
+
#define JTAG_STATUS_NORMAL 0x01
#define JTAG_STATUS_STOPWAIT 0x05
#define JTAG_STATUS_BUSY 0x09
#define JTAG_INSTR_BYPASS 0x0F
/** */
-static inline int dsp563xx_write_dr(struct jtag_tap *tap, uint8_t * dr_in, uint8_t * dr_out, int dr_len, int rti)
+static inline int dsp563xx_write_dr(struct jtag_tap *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti)
{
jtag_add_plain_dr_scan(dr_len, dr_out, dr_in, TAP_IDLE);
}
/** */
-static inline int dsp563xx_write_dr_u8(struct jtag_tap *tap, uint8_t * dr_in, uint8_t dr_out, int dr_len, int rti)
+static inline int dsp563xx_write_dr_u8(struct jtag_tap *tap, uint8_t *dr_in, uint8_t dr_out, int dr_len, int rti)
{
return dsp563xx_write_dr(tap, dr_in, &dr_out, dr_len, rti);
}
/** */
-static inline int dsp563xx_write_dr_u32(struct jtag_tap *tap, uint32_t * dr_in, uint32_t dr_out, int dr_len, int rti)
+static inline int dsp563xx_write_dr_u32(struct jtag_tap *tap, uint32_t *dr_in, uint32_t dr_out, int dr_len, int rti)
{
- return dsp563xx_write_dr(tap, (uint8_t *) dr_in, (uint8_t *) & dr_out, dr_len, rti);
+ return dsp563xx_write_dr(tap, (uint8_t *) dr_in, (uint8_t *) &dr_out, dr_len, rti);
}
/** single word instruction */
-static inline int dsp563xx_once_ir_exec(struct jtag_tap *tap, int flush, uint8_t instr, uint8_t rw, uint8_t go, uint8_t ex)
+static inline int dsp563xx_once_ir_exec(struct jtag_tap *tap, int flush, uint8_t instr,
+ uint8_t rw, uint8_t go, uint8_t ex)
{
int err;
- if ((err = dsp563xx_write_dr_u8(tap, 0, instr | (ex << 5) | (go << 6) | (rw << 7), 8, 0)) != ERROR_OK)
+ err = dsp563xx_write_dr_u8(tap, 0, instr | (ex << 5) | (go << 6) | (rw << 7), 8, 0);
+ if (err != ERROR_OK)
return err;
- if ( flush )
+ if (flush)
err = jtag_execute_queue();
return err;
}
/* IR and DR functions */
-static inline int dsp563xx_write_ir(struct jtag_tap *tap, uint8_t * ir_in, uint8_t * ir_out, int ir_len, int rti)
+static inline int dsp563xx_write_ir(struct jtag_tap *tap, uint8_t *ir_in, uint8_t *ir_out, int ir_len, int rti)
{
jtag_add_plain_ir_scan(tap->ir_length, ir_out, ir_in, TAP_IDLE);
return ERROR_OK;
}
-static inline int dsp563xx_write_ir_u8(struct jtag_tap *tap, uint8_t * ir_in, uint8_t ir_out, int ir_len, int rti)
+static inline int dsp563xx_write_ir_u8(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti)
{
return dsp563xx_write_ir(tap, ir_in, &ir_out, ir_len, rti);
}
-static inline int dsp563xx_jtag_sendinstr(struct jtag_tap *tap, uint8_t * ir_in, uint8_t ir_out)
+static inline int dsp563xx_jtag_sendinstr(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out)
{
return dsp563xx_write_ir_u8(tap, ir_in, ir_out, tap->ir_length, 1);
}
int err;
uint8_t jtag_status;
- if ((err = dsp563xx_jtag_sendinstr(tap, &jtag_status, JTAG_INSTR_ENABLE_ONCE)) != ERROR_OK)
- return err;
- if ((err = jtag_execute_queue()) != ERROR_OK)
- return err;
+ err = dsp563xx_jtag_sendinstr(tap, &jtag_status, JTAG_INSTR_ENABLE_ONCE);
+ if (err != ERROR_OK)
+ return TARGET_UNKNOWN;
+ err = jtag_execute_queue();
+ if (err != ERROR_OK)
+ return TARGET_UNKNOWN;
- if ((jtag_status & 1) != 1)
- {
+ /* verify correct static status pattern */
+ if ((jtag_status & JTAG_STATUS_STATIC_MASK) != JTAG_STATUS_STATIC_VALUE)
return TARGET_UNKNOWN;
- }
if (jtag_status != JTAG_STATUS_DEBUG)
- {
return TARGET_RUNNING;
- }
return TARGET_HALTED;
}
/* in reset state we only get a ACK
* from the interface */
if (reset_state)
- {
pattern = 1;
- }
else
- {
pattern = JTAG_STATUS_DEBUG;
- }
/* wait until we get the ack */
- while (ir_in != pattern)
- {
- if ((err = dsp563xx_jtag_sendinstr(tap, &ir_in, JTAG_INSTR_DEBUG_REQUEST)) != ERROR_OK)
+ while (ir_in != pattern) {
+ err = dsp563xx_jtag_sendinstr(tap, &ir_in, JTAG_INSTR_DEBUG_REQUEST);
+ if (err != ERROR_OK)
return err;
- if ((err = jtag_execute_queue()) != ERROR_OK)
+ err = jtag_execute_queue();
+ if (err != ERROR_OK)
return err;
LOG_DEBUG("debug request: %02X", ir_in);
if (retry++ == 100)
- {
return ERROR_TARGET_FAILURE;
- }
}
/* we cant enable the once in reset state */
if (pattern == 1)
- {
return ERROR_OK;
- }
/* try to enable once */
retry = 0;
ir_in = 0;
- while (ir_in != pattern)
- {
- if ((err = dsp563xx_jtag_sendinstr(tap, &ir_in, JTAG_INSTR_ENABLE_ONCE)) != ERROR_OK)
+ while (ir_in != pattern) {
+ err = dsp563xx_jtag_sendinstr(tap, &ir_in, JTAG_INSTR_ENABLE_ONCE);
+ if (err != ERROR_OK)
return err;
- if ((err = jtag_execute_queue()) != ERROR_OK)
+ err = jtag_execute_queue();
+ if (err != ERROR_OK)
return err;
LOG_DEBUG("enable once: %02X", ir_in);
- if (retry++ == 100)
- {
+ if (retry++ == 100) {
LOG_DEBUG("error");
return ERROR_TARGET_FAILURE;
}
}
if (ir_in != JTAG_STATUS_DEBUG)
- {
return ERROR_TARGET_FAILURE;
- }
return ERROR_OK;
}
int dsp563xx_once_read_register(struct jtag_tap *tap, int flush, struct once_reg *regs, int len)
{
int i;
- int err;
+ int err = ERROR_OK;
- for (i = 0; i < len; i++)
- {
- if ((err = dsp563xx_once_reg_read_ex(tap, flush, regs[i].addr, regs[i].len, ®s[i].reg)) != ERROR_OK)
+ for (i = 0; i < len; i++) {
+ err = dsp563xx_once_reg_read_ex(tap, flush, regs[i].addr, regs[i].len, ®s[i].reg);
+ if (err != ERROR_OK)
return err;
}
- if ( flush )
+ if (flush)
err = jtag_execute_queue();
return err;
}
/** once read register with register len */
-int dsp563xx_once_reg_read_ex(struct jtag_tap *tap, int flush, uint8_t reg, uint8_t len, uint32_t * data)
+int dsp563xx_once_reg_read_ex(struct jtag_tap *tap, int flush, uint8_t reg, uint8_t len, uint32_t *data)
{
int err;
- if ((err = dsp563xx_once_ir_exec(tap, 1, reg, 1, 0, 0)) != ERROR_OK)
+ err = dsp563xx_once_ir_exec(tap, 1, reg, 1, 0, 0);
+ if (err != ERROR_OK)
return err;
- if ((err = dsp563xx_write_dr_u32(tap, data, 0x00, len, 0)) != ERROR_OK)
+ err = dsp563xx_write_dr_u32(tap, data, 0x00, len, 0);
+ if (err != ERROR_OK)
return err;
- if ( flush )
+ if (flush)
err = jtag_execute_queue();
+
return err;
}
/** once read register */
-int dsp563xx_once_reg_read(struct jtag_tap *tap, int flush, uint8_t reg, uint32_t * data)
+int dsp563xx_once_reg_read(struct jtag_tap *tap, int flush, uint8_t reg, uint32_t *data)
{
int err;
- if ((err = dsp563xx_once_ir_exec(tap, flush, reg, 1, 0, 0)) != ERROR_OK)
+ err = dsp563xx_once_ir_exec(tap, flush, reg, 1, 0, 0);
+ if (err != ERROR_OK)
return err;
- if ((err = dsp563xx_write_dr_u32(tap, data, 0x00, 24, 0)) != ERROR_OK)
+ err = dsp563xx_write_dr_u32(tap, data, 0x00, 24, 0);
+ if (err != ERROR_OK)
return err;
- if ( flush )
+ if (flush)
err = jtag_execute_queue();
+
return err;
}
{
int err;
- if ((err = dsp563xx_once_ir_exec(tap, flush, reg, 0, 0, 0)) != ERROR_OK)
+ err = dsp563xx_once_ir_exec(tap, flush, reg, 0, 0, 0);
+ if (err != ERROR_OK)
return err;
- if ((err = dsp563xx_write_dr_u32(tap, 0x00, data, 24, 0)) != ERROR_OK)
+ err = dsp563xx_write_dr_u32(tap, 0x00, data, 24, 0);
+ if (err != ERROR_OK)
return err;
- if ( flush )
+ if (flush)
err = jtag_execute_queue();
return err;
}
{
int err;
- if ((err = dsp563xx_once_ir_exec(tap, flush, DSP563XX_ONCE_OPDBR, 0, 1, 0)) != ERROR_OK)
+ err = dsp563xx_once_ir_exec(tap, flush, DSP563XX_ONCE_OPDBR, 0, 1, 0);
+ if (err != ERROR_OK)
return err;
- if ((err = dsp563xx_write_dr_u32(tap, 0, opcode, 24, 0)) != ERROR_OK)
+ err = dsp563xx_write_dr_u32(tap, 0, opcode, 24, 0);
+ if (err != ERROR_OK)
return err;
- if ( flush )
+ if (flush)
err = jtag_execute_queue();
return err;
}
{
int err;
- if ((err = dsp563xx_once_ir_exec(tap, flush, DSP563XX_ONCE_OPDBR, 0, 0, 0)) != ERROR_OK)
+ err = dsp563xx_once_ir_exec(tap, flush, DSP563XX_ONCE_OPDBR, 0, 0, 0);
+ if (err != ERROR_OK)
return err;
- if ((err = dsp563xx_write_dr_u32(tap, 0, opcode, 24, 0)) != ERROR_OK)
+ err = dsp563xx_write_dr_u32(tap, 0, opcode, 24, 0);
+ if (err != ERROR_OK)
return err;
- if ( flush )
- if ((err = jtag_execute_queue()) != ERROR_OK)
+ if (flush) {
+ err = jtag_execute_queue();
+ if (err != ERROR_OK)
return err;
+ }
- if ((err = dsp563xx_once_ir_exec(tap, flush, DSP563XX_ONCE_OPDBR, 0, 1, 0)) != ERROR_OK)
+ err = dsp563xx_once_ir_exec(tap, flush, DSP563XX_ONCE_OPDBR, 0, 1, 0);
+ if (err != ERROR_OK)
return err;
- if ((err = dsp563xx_write_dr_u32(tap, 0, operand, 24, 0)) != ERROR_OK)
+ err = dsp563xx_write_dr_u32(tap, 0, operand, 24, 0);
+ if (err != ERROR_OK)
return err;
- if ( flush )
- if ((err = jtag_execute_queue()) != ERROR_OK)
+ if (flush) {
+ err = jtag_execute_queue();
+ if (err != ERROR_OK)
return err;
+ }
return ERROR_OK;
}