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jtag: make out_value const
[openocd.git] / src / target / etb.c
diff --git a/src/target/etb.c b/src/target/etb.c
index 18258f6acc793238f4574963978943d04a8d000e..ba47c39ae141f17ba38642ce5a92f6f57a02c46e 100644 (file)
--- a/src/target/etb.c
+++ b/src/target/etb.c
@@ -54,16 +54,16 @@ static int etb_set_instr(struct etb *etb, uint32_t new_instr)
        {
                struct scan_field field;
 
-               field.tap = tap;
                field.num_bits = tap->ir_length;
-               field.out_value = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
-               buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
+               void * t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
+               field.out_value = t;
+               buf_set_u32(t, 0, field.num_bits, new_instr);
 
                field.in_value = NULL;
 
-               jtag_add_ir_scan(1, &field, jtag_get_end_state());
+               jtag_add_ir_scan(tap, &field, TAP_IDLE);
 
-               free(field.out_value);
+               free(t);
        }
 
        return ERROR_OK;
@@ -75,20 +75,20 @@ static int etb_scann(struct etb *etb, uint32_t new_scan_chain)
        {
                struct scan_field field;
 
-               field.tap = etb->tap;
                field.num_bits = 5;
-               field.out_value = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
-               buf_set_u32(field.out_value, 0, field.num_bits, new_scan_chain);
+               void * t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
+               field.out_value = t;
+               buf_set_u32(t, 0, field.num_bits, new_scan_chain);
 
                field.in_value = NULL;
 
                /* select INTEST instruction */
                etb_set_instr(etb, 0x2);
-               jtag_add_dr_scan(1, &field, jtag_get_end_state());
+               jtag_add_dr_scan(etb->tap, 1, &field, TAP_IDLE);
 
                etb->cur_scan_chain = new_scan_chain;
 
-               free(field.out_value);
+               free(t);
        }
 
        return ERROR_OK;
@@ -175,51 +175,46 @@ static int etb_read_ram(struct etb *etb, uint32_t *data, int num_frames)
        struct scan_field fields[3];
        int i;
 
-       jtag_set_end_state(TAP_IDLE);
        etb_scann(etb, 0x0);
        etb_set_instr(etb, 0xc);
 
-       fields[0].tap = etb->tap;
        fields[0].num_bits = 32;
        fields[0].out_value = NULL;
        fields[0].in_value = NULL;
 
-       fields[1].tap = etb->tap;
        fields[1].num_bits = 7;
-       fields[1].out_value = malloc(1);
-       buf_set_u32(fields[1].out_value, 0, 7, 4);
+       uint8_t temp1;
+       fields[1].out_value = &temp1;
+       buf_set_u32(&temp1, 0, 7, 4);
        fields[1].in_value = NULL;
 
-       fields[2].tap = etb->tap;
        fields[2].num_bits = 1;
-       fields[2].out_value = malloc(1);
-       buf_set_u32(fields[2].out_value, 0, 1, 0);
+       uint8_t temp2;
+       fields[2].out_value = &temp2;
+       buf_set_u32(&temp2, 0, 1, 0);
        fields[2].in_value = NULL;
 
-       jtag_add_dr_scan(3, fields, jtag_get_end_state());
+       jtag_add_dr_scan(etb->tap, 3, fields, TAP_IDLE);
 
        for (i = 0; i < num_frames; i++)
        {
                /* ensure nR/W reamins set to read */
-               buf_set_u32(fields[2].out_value, 0, 1, 0);
+               buf_set_u32(&temp2, 0, 1, 0);
 
                /* address remains set to 0x4 (RAM data) until we read the last frame */
                if (i < num_frames - 1)
-                       buf_set_u32(fields[1].out_value, 0, 7, 4);
+                       buf_set_u32(&temp1, 0, 7, 4);
                else
-                       buf_set_u32(fields[1].out_value, 0, 7, 0);
+                       buf_set_u32(&temp1, 0, 7, 0);
 
                fields[0].in_value = (uint8_t *)(data + i);
-               jtag_add_dr_scan(3, fields, jtag_get_end_state());
+               jtag_add_dr_scan(etb->tap, 3, fields, TAP_IDLE);
 
                jtag_add_callback(etb_getbuf, (jtag_callback_data_t)(data + i));
        }
 
        jtag_execute_queue();
 
-       free(fields[1].out_value);
-       free(fields[2].out_value);
-
        return ERROR_OK;
 }
 
@@ -232,47 +227,42 @@ static int etb_read_reg_w_check(struct reg *reg,
 
        LOG_DEBUG("%i", (int)(etb_reg->addr));
 
-       jtag_set_end_state(TAP_IDLE);
        etb_scann(etb_reg->etb, 0x0);
        etb_set_instr(etb_reg->etb, 0xc);
 
-       fields[0].tap = etb_reg->etb->tap;
        fields[0].num_bits = 32;
        fields[0].out_value = reg->value;
        fields[0].in_value = NULL;
        fields[0].check_value = NULL;
        fields[0].check_mask = NULL;
 
-       fields[1].tap = etb_reg->etb->tap;
        fields[1].num_bits = 7;
-       fields[1].out_value = malloc(1);
-       buf_set_u32(fields[1].out_value, 0, 7, reg_addr);
+       uint8_t temp1;
+       fields[1].out_value = &temp1;
+       buf_set_u32(&temp1, 0, 7, reg_addr);
        fields[1].in_value = NULL;
        fields[1].check_value = NULL;
        fields[1].check_mask = NULL;
 
-       fields[2].tap = etb_reg->etb->tap;
        fields[2].num_bits = 1;
-       fields[2].out_value = malloc(1);
-       buf_set_u32(fields[2].out_value, 0, 1, 0);
+       uint8_t temp2;
+       fields[2].out_value = &temp2;
+       buf_set_u32(&temp2, 0, 1, 0);
        fields[2].in_value = NULL;
        fields[2].check_value = NULL;
        fields[2].check_mask = NULL;
 
-       jtag_add_dr_scan(3, fields, jtag_get_end_state());
+       jtag_add_dr_scan(etb_reg->etb->tap, 3, fields, TAP_IDLE);
 
        /* read the identification register in the second run, to make sure we
         * don't read the ETB data register twice, skipping every second entry
         */
-       buf_set_u32(fields[1].out_value, 0, 7, 0x0);
+       buf_set_u32(&temp1, 0, 7, 0x0);
        fields[0].in_value = reg->value;
        fields[0].check_value = check_value;
        fields[0].check_mask = check_mask;
 
-       jtag_add_dr_scan_check(3, fields, jtag_get_end_state());
-
-       free(fields[1].out_value);
-       free(fields[2].out_value);
+       jtag_add_dr_scan_check(etb_reg->etb->tap, 3, fields, TAP_IDLE);
 
        return ERROR_OK;
 }
@@ -318,33 +308,27 @@ static int etb_write_reg(struct reg *reg, uint32_t value)
 
        LOG_DEBUG("%i: 0x%8.8" PRIx32 "", (int)(etb_reg->addr), value);
 
-       jtag_set_end_state(TAP_IDLE);
        etb_scann(etb_reg->etb, 0x0);
        etb_set_instr(etb_reg->etb, 0xc);
 
-       fields[0].tap = etb_reg->etb->tap;
        fields[0].num_bits = 32;
-       fields[0].out_value = malloc(4);
-       buf_set_u32(fields[0].out_value, 0, 32, value);
+       uint8_t temp0[4];
+       fields[0].out_value = temp0;
+       buf_set_u32(&temp0, 0, 32, value);
        fields[0].in_value = NULL;
 
-       fields[1].tap = etb_reg->etb->tap;
        fields[1].num_bits = 7;
-       fields[1].out_value = malloc(1);
-       buf_set_u32(fields[1].out_value, 0, 7, reg_addr);
+       uint8_t temp1;
+       fields[1].out_value = &temp1;
+       buf_set_u32(&temp1, 0, 7, reg_addr);
        fields[1].in_value = NULL;
 
-       fields[2].tap = etb_reg->etb->tap;
        fields[2].num_bits = 1;
-       fields[2].out_value = malloc(1);
-       buf_set_u32(fields[2].out_value, 0, 1, 1);
+       uint8_t temp2;
+       fields[2].out_value = &temp2;
+       buf_set_u32(&temp2, 0, 1, 1);
 
        fields[2].in_value = NULL;
-
-       free(fields[0].out_value);
-       free(fields[1].out_value);
-       free(fields[2].out_value);
-
        return ERROR_OK;
 }
 
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