* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifndef ETM_H
#define ETM_H
#include "trace.h"
#include "arm_jtag.h"
-struct image_s;
+struct image;
/* ETM registers (JTAG protocol) */
-enum
-{
+enum {
ETM_CTRL = 0x00,
ETM_CONFIG = 0x01,
ETM_TRIG_EVENT = 0x02,
ETM_ID = 0x79,
};
-struct etm_reg
-{
+struct etm_reg {
uint32_t value;
const struct etm_reg_info *reg_info;
struct arm_jtag *jtag_info;
};
-typedef enum
-{
- /* Port width */
+/* Subset of ETM_CTRL bit assignments. Many of these
+ * control the configuration of trace output, which
+ * hooks up either to ETB or to an external device.
+ *
+ * NOTE that these have evolved since the ~v1.3 defns ...
+ */
+enum {
+ ETM_CTRL_POWERDOWN = (1 << 0),
+ ETM_CTRL_MONITOR_CPRT = (1 << 1),
+
+ /* bits 3:2 == trace type */
+ ETM_CTRL_TRACE_DATA = (1 << 2),
+ ETM_CTRL_TRACE_ADDR = (2 << 2),
+ ETM_CTRL_TRACE_MASK = (3 << 2),
+
+ /* Port width (bits 21 and 6:4) */
ETM_PORT_4BIT = 0x00,
ETM_PORT_8BIT = 0x10,
ETM_PORT_16BIT = 0x20,
ETM_PORT_1BIT = 0x00 | (1 << 21),
ETM_PORT_2BIT = 0x10 | (1 << 21),
ETM_PORT_WIDTH_MASK = 0x70 | (1 << 21),
- /* Port modes */
- ETM_PORT_NORMAL = 0x00000,
- ETM_PORT_MUXED = 0x10000,
- ETM_PORT_DEMUXED = 0x20000,
- ETM_PORT_MODE_MASK = 0x30000,
- /* Clocking modes */
- ETM_PORT_FULL_CLOCK = 0x0000,
- ETM_PORT_HALF_CLOCK = 0x1000,
- ETM_PORT_CLOCK_MASK = 0x1000,
-} etm_portmode_t;
-
-typedef enum
-{
- /* Data trace */
- ETMV1_TRACE_NONE = 0x00,
- ETMV1_TRACE_DATA = 0x01,
- ETMV1_TRACE_ADDR = 0x02,
- ETMV1_TRACE_MASK = 0x03,
- /* ContextID */
- ETMV1_CONTEXTID_NONE = 0x00,
- ETMV1_CONTEXTID_8 = 0x10,
- ETMV1_CONTEXTID_16 = 0x20,
- ETMV1_CONTEXTID_32 = 0x30,
- ETMV1_CONTEXTID_MASK = 0x30,
- /* Misc */
- ETMV1_CYCLE_ACCURATE = 0x100,
- ETMV1_BRANCH_OUTPUT = 0x200
-} etmv1_tracemode_t;
+
+ ETM_CTRL_FIFOFULL_STALL = (1 << 7),
+ ETM_CTRL_BRANCH_OUTPUT = (1 << 8),
+ ETM_CTRL_DBGRQ = (1 << 9),
+ ETM_CTRL_ETM_PROG = (1 << 10),
+ ETM_CTRL_ETMEN = (1 << 11),
+ ETM_CTRL_CYCLE_ACCURATE = (1 << 12),
+
+ /* Clocking modes -- up to v2.1, bit 13 */
+ ETM_PORT_FULL_CLOCK = (0 << 13),
+ ETM_PORT_HALF_CLOCK = (1 << 13),
+ ETM_PORT_CLOCK_MASK = (1 << 13),
+
+ /* bits 15:14 == context ID size used in tracing */
+ ETM_CTRL_CONTEXTID_NONE = (0 << 14),
+ ETM_CTRL_CONTEXTID_8 = (1 << 14),
+ ETM_CTRL_CONTEXTID_16 = (2 << 14),
+ ETM_CTRL_CONTEXTID_32 = (3 << 14),
+ ETM_CTRL_CONTEXTID_MASK = (3 << 14),
+
+ /* Port modes -- bits 17:16, tied to clocking mode */
+ ETM_PORT_NORMAL = (0 << 16),
+ ETM_PORT_MUXED = (1 << 16),
+ ETM_PORT_DEMUXED = (2 << 16),
+ ETM_PORT_MODE_MASK = (3 << 16),
+
+ /* bits 31:18 defined in v3.0 and later (e.g. ARM11+) */
+};
/* forward-declare ETM context */
-struct etm;
-
-struct etm_capture_driver
-{
- char *name;
- int (*register_commands)(struct command_context_s *cmd_ctx);
- int (*init)(struct etm *etm_ctx);
- trace_status_t (*status)(struct etm *etm_ctx);
- int (*read_trace)(struct etm *etm_ctx);
- int (*start_capture)(struct etm *etm_ctx);
- int (*stop_capture)(struct etm *etm_ctx);
+struct etm_context;
+
+struct etm_capture_driver {
+ const char *name;
+ const struct command_registration *commands;
+ int (*init)(struct etm_context *etm_ctx);
+ trace_status_t (*status)(struct etm_context *etm_ctx);
+ int (*read_trace)(struct etm_context *etm_ctx);
+ int (*start_capture)(struct etm_context *etm_ctx);
+ int (*stop_capture)(struct etm_context *etm_ctx);
};
-enum
-{
+enum {
ETMV1_TRACESYNC_CYCLE = 0x1,
ETMV1_TRIGGER_CYCLE = 0x2,
};
-struct etmv1_trace_data
-{
+struct etmv1_trace_data {
uint8_t pipestat; /* bits 0-2 pipeline status */
uint16_t packet; /* packet data (4, 8 or 16 bit) */
int flags; /* ETMV1_TRACESYNC_CYCLE, ETMV1_TRIGGER_CYCLE */
* this will have to be split into version independent elements
* and a version specific part
*/
-typedef struct etm
-{
- target_t *target; /* target this ETM is connected to */
+struct etm_context {
+ struct target *target; /* target this ETM is connected to */
struct reg_cache *reg_cache; /* ETM register cache */
struct etm_capture_driver *capture_driver; /* driver used to access ETM data */
void *capture_driver_priv; /* capture driver private data */
- uint32_t trigger_percent; /* how much trace buffer to fill after trigger */
trace_status_t capture_status; /* current state of capture run */
struct etmv1_trace_data *trace_data; /* trace data */
uint32_t trace_depth; /* number of cycles to be analyzed, 0 if no data available */
- etm_portmode_t portmode; /* normal, multiplexed or demultiplexed */
- etmv1_tracemode_t tracemode; /* type of info trace contains */
- int /*armv4_5_state_t*/ core_state; /* current core state */
- struct image_s *image; /* source for target opcodes */
+ uint32_t control; /* shadow of ETM_CTRL */
+ int /*arm_state*/ core_state; /* current core state */
+ struct image *image; /* source for target opcodes */
uint32_t pipe_index; /* current trace cycle */
uint32_t data_index; /* cycle holding next data packet */
bool data_half; /* port half on a 16 bit port */
uint32_t last_branch_reason; /* type of last branch encountered */
uint32_t last_ptr; /* address of the last data access */
uint32_t last_instruction; /* index of last executed (to calc timings) */
-} etm_context_t;
+};
/* PIPESTAT values */
-typedef enum
-{
+typedef enum {
STAT_IE = 0x0,
STAT_ID = 0x1,
STAT_IN = 0x2,
} etmv1_pipestat_t;
/* branch reason values */
-typedef enum
-{
+typedef enum {
BR_NORMAL = 0x0, /* Normal PC change : periodic synchro (ETMv1.1) */
BR_ENABLE = 0x1, /* Trace has been enabled */
BR_RESTART = 0x2, /* Trace restarted after a FIFO overflow */
BR_RSVD7 = 0x7, /* reserved */
} etmv1_branch_reason_t;
-struct reg_cache* etm_build_reg_cache(target_t *target,
- struct arm_jtag *jtag_info, etm_context_t *etm_ctx);
+struct reg_cache *etm_build_reg_cache(struct target *target,
+ struct arm_jtag *jtag_info, struct etm_context *etm_ctx);
-int etm_setup(target_t *target);
+int etm_setup(struct target *target);
-int etm_register_commands(struct command_context_s *cmd_ctx);
+extern const struct command_registration etm_command_handlers[];
#define ERROR_ETM_INVALID_DRIVER (-1300)
#define ERROR_ETM_PORTMODE_NOT_SUPPORTED (-1301)
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