--- a/master/master.c Sun Jun 06 23:21:09 2010 +0200
+++ b/master/master.c Tue Jul 06 15:09:57 2010 +0200
@@ -2344,6 +2344,150 @@
/*****************************************************************************/
+int ecrt_master_write_idn(ec_master_t *master, uint16_t slave_position,
+ uint16_t idn, uint8_t *data, size_t data_size, uint16_t *error_code)
+{
+ ec_master_soe_request_t request;
+ int retval;
+
+ INIT_LIST_HEAD(&request.list);
+ ec_soe_request_init(&request.req);
+ ec_soe_request_set_idn(&request.req, idn);
+
+ if (ec_soe_request_alloc(&request.req, data_size)) {
+ ec_soe_request_clear(&request.req);
+ return -ENOMEM;
+ }
+
+ memcpy(request.req.data, data, data_size);
+ request.req.data_size = data_size;
+ ec_soe_request_write(&request.req);
+
+ if (down_interruptible(&master->master_sem))
+ return -EINTR;
+
+ if (!(request.slave = ec_master_find_slave(
+ master, 0, slave_position))) {
+ up(&master->master_sem);
+ EC_MASTER_ERR(master, "Slave %u does not exist!\n",
+ slave_position);
+ ec_soe_request_clear(&request.req);
+ return -EINVAL;
+ }
+
+ EC_SLAVE_DBG(request.slave, 1, "Scheduling SoE write request.\n");
+
+ // schedule SoE write request.
+ list_add_tail(&request.list, &request.slave->soe_requests);
+
+ up(&master->master_sem);
+
+ // wait for processing through FSM
+ if (wait_event_interruptible(request.slave->soe_queue,
+ request.req.state != EC_INT_REQUEST_QUEUED)) {
+ // interrupted by signal
+ down(&master->master_sem);
+ if (request.req.state == EC_INT_REQUEST_QUEUED) {
+ // abort request
+ list_del(&request.list);
+ up(&master->master_sem);
+ ec_soe_request_clear(&request.req);
+ return -EINTR;
+ }
+ up(&master->master_sem);
+ }
+
+ // wait until master FSM has finished processing
+ wait_event(request.slave->soe_queue,
+ request.req.state != EC_INT_REQUEST_BUSY);
+
+ if (error_code) {
+ *error_code = request.req.error_code;
+ }
+ retval = request.req.state == EC_INT_REQUEST_SUCCESS ? 0 : -EIO;
+ ec_soe_request_clear(&request.req);
+
+ return retval;
+}
+
+/*****************************************************************************/
+
+int ecrt_master_read_idn(ec_master_t *master, uint16_t slave_position,
+ uint16_t idn, uint8_t *target, size_t target_size,
+ size_t *result_size, uint16_t *error_code)
+{
+ ec_master_soe_request_t request;
+
+ INIT_LIST_HEAD(&request.list);
+ ec_soe_request_init(&request.req);
+ ec_soe_request_set_idn(&request.req, idn);
+ ec_soe_request_read(&request.req);
+
+ if (down_interruptible(&master->master_sem))
+ return -EINTR;
+
+ if (!(request.slave = ec_master_find_slave(master, 0, slave_position))) {
+ up(&master->master_sem);
+ ec_soe_request_clear(&request.req);
+ EC_MASTER_ERR(master, "Slave %u does not exist!\n", slave_position);
+ return -EINVAL;
+ }
+
+ // schedule request.
+ list_add_tail(&request.list, &request.slave->soe_requests);
+
+ up(&master->master_sem);
+
+ EC_SLAVE_DBG(request.slave, 1, "Scheduled SoE read request.\n");
+
+ // wait for processing through FSM
+ if (wait_event_interruptible(request.slave->soe_queue,
+ request.req.state != EC_INT_REQUEST_QUEUED)) {
+ // interrupted by signal
+ down(&master->master_sem);
+ if (request.req.state == EC_INT_REQUEST_QUEUED) {
+ list_del(&request.list);
+ up(&master->master_sem);
+ ec_soe_request_clear(&request.req);
+ return -EINTR;
+ }
+ // request already processing: interrupt not possible.
+ up(&master->master_sem);
+ }
+
+ // wait until master FSM has finished processing
+ wait_event(request.slave->soe_queue,
+ request.req.state != EC_INT_REQUEST_BUSY);
+
+ if (error_code) {
+ *error_code = request.req.error_code;
+ }
+
+ EC_SLAVE_DBG(request.slave, 1, "Read %zd bytes via SoE.\n",
+ request.req.data_size);
+
+ if (request.req.state != EC_INT_REQUEST_SUCCESS) {
+ if (result_size) {
+ *result_size = 0;
+ }
+ ec_soe_request_clear(&request.req);
+ return -EIO;
+ } else {
+ if (request.req.data_size > target_size) {
+ EC_MASTER_ERR(master, "Buffer too small.\n");
+ ec_soe_request_clear(&request.req);
+ return -EOVERFLOW;
+ }
+ if (result_size) {
+ *result_size = request.req.data_size;
+ }
+ memcpy(target, request.req.data, request.req.data_size);
+ return 0;
+ }
+}
+
+/*****************************************************************************/
+
/** \cond */
EXPORT_SYMBOL(ecrt_master_create_domain);
@@ -2362,6 +2506,8 @@
EXPORT_SYMBOL(ecrt_master_sync_slave_clocks);
EXPORT_SYMBOL(ecrt_master_sync_monitor_queue);
EXPORT_SYMBOL(ecrt_master_sync_monitor_process);
+EXPORT_SYMBOL(ecrt_master_write_idn);
+EXPORT_SYMBOL(ecrt_master_read_idn);
/** \endcond */