/*
- OpenOCD STM8 target driver
- Copyright (C) 2017 Ake Rehnman
- ake.rehnman(at)gmail.com
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- 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, see <http://www.gnu.org/licenses/>.
+* OpenOCD STM8 target driver
+* Copyright (C) 2017 Ake Rehnman
+* ake.rehnman(at)gmail.com
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "target.h"
#include "target_type.h"
#include "hello.h"
+#include "jtag/interface.h"
#include "jtag/jtag.h"
-#include "jtag/hla/hla_transport.h"
-#include "jtag/hla/hla_interface.h"
-#include "jtag/hla/hla_layout.h"
+#include "jtag/swim.h"
#include "register.h"
#include "breakpoints.h"
#include "algorithm.h"
static void stm8_enable_watchpoints(struct target *target);
static int stm8_unset_watchpoint(struct target *target,
struct watchpoint *watchpoint);
+static int (*adapter_speed)(int speed);
+extern struct adapter_driver *adapter_driver;
static const struct {
unsigned id;
enum hw_break_type type;
};
-static inline struct hl_interface_s *target_to_adapter(struct target *target)
-{
- return target->tap->priv;
-}
-
static int stm8_adapter_read_memory(struct target *target,
uint32_t addr, int size, int count, void *buf)
{
- int ret;
- struct hl_interface_s *adapter = target_to_adapter(target);
-
- ret = adapter->layout->api->read_mem(adapter->handle,
- addr, size, count, buf);
- if (ret != ERROR_OK)
- return ret;
- return ERROR_OK;
+ return swim_read_mem(addr, size, count, buf);
}
static int stm8_adapter_write_memory(struct target *target,
uint32_t addr, int size, int count, const void *buf)
{
- int ret;
- struct hl_interface_s *adapter = target_to_adapter(target);
-
- ret = adapter->layout->api->write_mem(adapter->handle,
- addr, size, count, buf);
- if (ret != ERROR_OK)
- return ret;
- return ERROR_OK;
+ return swim_write_mem(addr, size, count, buf);
}
static int stm8_write_u8(struct target *target,
uint32_t addr, uint8_t val)
{
- int ret;
uint8_t buf[1];
- struct hl_interface_s *adapter = target_to_adapter(target);
buf[0] = val;
- ret = adapter->layout->api->write_mem(adapter->handle, addr, 1, 1, buf);
- if (ret != ERROR_OK)
- return ret;
- return ERROR_OK;
+ return swim_write_mem(addr, 1, 1, buf);
}
static int stm8_read_u8(struct target *target,
uint32_t addr, uint8_t *val)
{
- int ret;
- struct hl_interface_s *adapter = target_to_adapter(target);
-
- ret = adapter->layout->api->read_mem(adapter->handle, addr, 1, 1, val);
- if (ret != ERROR_OK)
- return ret;
- return ERROR_OK;
-}
-
-static int stm8_set_speed(struct target *target, int speed)
-{
- struct hl_interface_s *adapter = target_to_adapter(target);
- adapter->layout->api->speed(adapter->handle, speed, 0);
- return ERROR_OK;
+ return swim_read_mem(addr, 1, 1, val);
}
/*
if ((comparator_list[0].type != HWBRK_EXEC)
&& (comparator_list[1].type != HWBRK_EXEC)) {
- if ((comparator_list[0].type != comparator_list[1].type)) {
+ if (comparator_list[0].type != comparator_list[1].type) {
LOG_ERROR("data hw breakpoints must be of same type");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
return retval;
}
+static int stm8_speed(int speed)
+{
+ int retval;
+ uint8_t csr;
+
+ LOG_DEBUG("stm8_speed: %d", speed);
+
+ csr = SAFE_MASK | SWIM_DM;
+ if (speed >= SWIM_FREQ_HIGH)
+ csr |= HS;
+
+ LOG_DEBUG("writing B0 to SWIM_CSR (SAFE_MASK + SWIM_DM + HS:%d)", csr & HS ? 1 : 0);
+ retval = stm8_write_u8(NULL, SWIM_CSR, csr);
+ if (retval != ERROR_OK)
+ return retval;
+ return adapter_speed(speed);
+}
+
static int stm8_init(struct command_context *cmd_ctx, struct target *target)
{
+ /*
+ * FIXME: this is a temporarily hack that needs better implementation.
+ * Being the only overwrite of adapter_driver, it prevents declaring const
+ * the struct adapter_driver.
+ * intercept adapter_driver->speed() calls
+ */
+ adapter_speed = adapter_driver->speed;
+ adapter_driver->speed = stm8_speed;
+
stm8_build_reg_cache(target);
return ERROR_OK;
static int stm8_reset_assert(struct target *target)
{
int res = ERROR_OK;
- struct hl_interface_s *adapter = target_to_adapter(target);
struct stm8_common *stm8 = target_to_stm8(target);
bool use_srst_fallback = true;
enum reset_types jtag_reset_config = jtag_get_reset_config();
if (jtag_reset_config & RESET_HAS_SRST) {
- jtag_add_reset(0, 1);
- res = adapter->layout->api->assert_srst(adapter->handle, 0);
-
+ res = adapter_assert_reset();
if (res == ERROR_OK)
/* hardware srst supported */
use_srst_fallback = false;
if (use_srst_fallback) {
LOG_DEBUG("Hardware srst not supported, falling back to swim reset");
- res = adapter->layout->api->reset(adapter->handle);
+ res = swim_system_reset();
if (res != ERROR_OK)
return res;
}
static int stm8_reset_deassert(struct target *target)
{
int res;
- struct hl_interface_s *adapter = target_to_adapter(target);
-
enum reset_types jtag_reset_config = jtag_get_reset_config();
if (jtag_reset_config & RESET_HAS_SRST) {
- res = adapter->layout->api->assert_srst(adapter->handle, 1);
+ res = adapter_deassert_reset();
if ((res != ERROR_OK) && (res != ERROR_COMMAND_NOTFOUND))
return res;
}
- /* virtual deassert reset, we need it for the internal
- * jtag state machine
- */
- jtag_add_reset(0, 0);
-
/* The cpu should now be stalled. If halt was requested
let poll detect the stall */
if (target->reset_halt)
uint8_t csr1, csr2;
/* get pointers to arch-specific information */
struct stm8_common *stm8 = target_to_stm8(target);
- struct hl_interface_s *adapter = target_to_adapter(target);
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
if (!target_was_examined(target)) {
if (!stm8->swim_configured) {
- /* set SWIM_CSR = 0xa0 (enable mem access & mask reset) */
- LOG_DEBUG("writing A0 to SWIM_CSR (SAFE_MASK + SWIM_DM)");
- retval = stm8_write_u8(target, SWIM_CSR, SAFE_MASK + SWIM_DM);
- if (retval != ERROR_OK)
- return retval;
- /* set high speed */
- LOG_DEBUG("writing B0 to SWIM_CSR (SAFE_MASK + SWIM_DM + HS)");
- retval = stm8_write_u8(target, SWIM_CSR, SAFE_MASK + SWIM_DM + HS);
- if (retval != ERROR_OK)
- return retval;
- retval = stm8_set_speed(target, 1);
- if (retval == ERROR_OK)
- stm8->swim_configured = true;
+ stm8->swim_configured = true;
/*
Now is the time to deassert reset if connect_under_reset.
Releasing reset line will cause the option bytes to load.
The core will still be stalled.
*/
- if (adapter->param.connect_under_reset)
- stm8_reset_deassert(target);
+ if (jtag_reset_config & RESET_CNCT_UNDER_SRST) {
+ if (jtag_reset_config & RESET_SRST_NO_GATING)
+ stm8_reset_deassert(target);
+ else
+ LOG_WARNING("\'srst_nogate\' reset_config option is required");
+ }
} else {
LOG_INFO("trying to reconnect");
- retval = adapter->layout->api->state(adapter->handle);
+ retval = swim_reconnect();
if (retval != ERROR_OK) {
LOG_ERROR("reconnect failed");
return ERROR_FAIL;
stm8->enable_step_irq = enable;
}
msg = stm8->enable_step_irq ? "enabled" : "disabled";
- command_print(CMD_CTX, "enable_step_irq = %s", msg);
+ command_print(CMD, "enable_step_irq = %s", msg);
return ERROR_OK;
}
stm8->enable_stm8l = enable;
}
msg = stm8->enable_stm8l ? "enabled" : "disabled";
- command_print(CMD_CTX, "enable_stm8l = %s", msg);
+ command_print(CMD, "enable_stm8l = %s", msg);
stm8_init_flash_regs(stm8->enable_stm8l, stm8);
return ERROR_OK;
}
Code Review / openocd.git / blobdiff