Example #1
0
/**
 * drm_atomic_helper_commit - commit validated state object
 * @dev: DRM device
 * @state: the driver state object
 * @async: asynchronous commit
 *
 * This function commits a with drm_atomic_helper_check() pre-validated state
 * object. This can still fail when e.g. the framebuffer reservation fails. For
 * now this doesn't implement asynchronous commits.
 *
 * RETURNS
 * Zero for success or -errno.
 */
int msm_atomic_commit(struct drm_device *dev,
		struct drm_atomic_state *state, bool async)
{
	int nplanes = dev->mode_config.num_total_plane;
	int ncrtcs = dev->mode_config.num_crtc;
	struct msm_commit *c;
	int i, ret;

	ret = drm_atomic_helper_prepare_planes(dev, state);
	if (ret)
		return ret;

	c = new_commit(state);
	if (!c)
		return -ENOMEM;

	/*
	 * Figure out what crtcs we have:
	 */
	for (i = 0; i < ncrtcs; i++) {
		struct drm_crtc *crtc = state->crtcs[i];
		if (!crtc)
			continue;
		c->crtc_mask |= (1 << drm_crtc_index(crtc));
	}

	/*
	 * Figure out what fence to wait for:
	 */
	for (i = 0; i < nplanes; i++) {
		struct drm_plane *plane = state->planes[i];
		struct drm_plane_state *new_state = state->plane_states[i];

		if (!plane)
			continue;

		if ((plane->state->fb != new_state->fb) && new_state->fb)
			add_fb(c, new_state->fb);
	}

	/*
	 * Wait for pending updates on any of the same crtc's and then
	 * mark our set of crtc's as busy:
	 */
	ret = start_atomic(dev->dev_private, c->crtc_mask);
	if (ret)
		return ret;

	/*
	 * This is the point of no return - everything below never fails except
	 * when the hw goes bonghits. Which means we can commit the new state on
	 * the software side now.
	 */

	drm_atomic_helper_swap_state(dev, state);

	/*
	 * Everything below can be run asynchronously without the need to grab
	 * any modeset locks at all under one conditions: It must be guaranteed
	 * that the asynchronous work has either been cancelled (if the driver
	 * supports it, which at least requires that the framebuffers get
	 * cleaned up with drm_atomic_helper_cleanup_planes()) or completed
	 * before the new state gets committed on the software side with
	 * drm_atomic_helper_swap_state().
	 *
	 * This scheme allows new atomic state updates to be prepared and
	 * checked in parallel to the asynchronous completion of the previous
	 * update. Which is important since compositors need to figure out the
	 * composition of the next frame right after having submitted the
	 * current layout.
	 */

	if (async) {
		msm_queue_fence_cb(dev, &c->fence_cb, c->fence);
		return 0;
	}

	ret = msm_wait_fence_interruptable(dev, c->fence, NULL);
	if (ret) {
		WARN_ON(ret);  // TODO unswap state back?  or??
		kfree(c);
		return ret;
	}

	complete_commit(c);

	return 0;
}
Example #2
0
/*******************************************************************************
 *******************************************************************************
  \note  run_traj_task
  \date  Jun. 1999

  \remarks

  run the task from the task servo: REAL TIME requirements!

 *******************************************************************************
 Function Parameters: [in]=input,[out]=output

  none

 ******************************************************************************/
static int run_traj_task(void) {

	int j, i;
	double time_of_traj_index;
	double time_of_next_traj_index;
	static int flag_reset = FALSE;
	static double dist = 1e-1;
	static int num_it = 1;
	static int firsttime = TRUE;
	static double tauReturn = 1.5;
	const int returnLen = (int)(tauReturn * task_servo_rate);
	static int return_iter = 1;
	static int return_total_len = 1;
	static SL_Jstate j0[N_DOFS+1];
	static SL_Jstate j1[N_DOFS+1];
	static Matrix trajReturn;
	static double time1 = 0;
	static double time2 = 0;

	// checking for limits

	if (!check_joint_limits(joint_state, 0.01)) {
		printf("Joint limits are exceeding soft limits! Freezing...\n");
		freeze();
	}
	if (!check_des_joint_limits(joint_des_state, 0.01)) {
		printf("Joint des limits are exceeding soft limits! Freezing...\n");
		freeze();
	}
	// calculate the racket orientation from endeffector
	calc_racket(&racket_state, &racket_orient,
			         cart_state[RIGHT_HAND], cart_orient[RIGHT_HAND]);
	if(collision_detection(racket_state)){
		printf("Collision detected! Freezing...\n");
		freeze();
	}


	if (firsttime) {
		firsttime = FALSE;
		traj_index = 1;
		//print_vec("q0:",q0);
		//turn_off_integrator(); // keep integrators off throughout the trajectory
		bzero((void *)j0, sizeof(SL_Jstate)* (N_DOFS+1));
		for (i = 1; i <= N_DOFS; i++) {
			j0[i].th = q0[i];
			j0[i].thd = 0.0;
			j0[i].thdd = 0.0;
			j1[i].th = traj_pos[traj_len][i];
			j1[i].thd = traj_vel[traj_len][i];
			j1[i].thdd = traj_acc[traj_len][i];
		}
		trajReturn = my_matrix(1,returnLen,1,3*N_DOFS);
		//entirePoly5th(trajReturn, j1, j0, tauReturn);
		save_act_traj(traj_index);
		fprint_joint_act_traj(traj_index);
		fprint_joint_des_traj(traj_index);
		fprint_cart_des_traj(traj_index);
		fprint_cart_act_traj(traj_index);
	}

	time_of_traj_index      = ((double)(traj_index-1))/SAMP_FREQ;
	time_of_next_traj_index = ((double)(traj_index))/SAMP_FREQ;

	/* the statement below takes care of numerical rounding problems */
	if (task_time  >= time_of_next_traj_index-0.00001 && !flag_reset) {

		// here we can move on to the next point on the trajectory
		//printf("Traj index: %d \n", traj_index);
		traj_index = traj_index + 1;

		if (traj_index > traj_len) {
			//traj_index = 1;
			// revert back to usual PD control to bring it back to starting position
			toggle_fb();
			printf("Number of iter: %d\n", num_it);
			flag_reset = TRUE;
			rms_traj_error(traj_pos_act,traj_vel_act,traj_pos,traj_vel);
			entirePoly5th(trajReturn, joint_state, j0, tauReturn);
			//entirePoly5th(trajReturn, joint_state, joint_default_state, tauReturn);
			//return_iter = 1;
			//task_time = 1./(double)task_servo_rate;
			//break;
		}
		else {
			// saving the actual joint positions
			// this will be used by ILC
			save_act_traj(traj_index);
			fprint_joint_act_traj(traj_index);
			fprint_joint_des_traj(traj_index);
			fprint_cart_des_traj(traj_index);
			fprint_cart_act_traj(traj_index);
		}

		time_of_traj_index      = ((double)(traj_index-1))/SAMP_FREQ;
		time_of_next_traj_index = ((double)(traj_index))/SAMP_FREQ;
	}

	// make sure vel and acc are zero
	if (flag_reset) {

		//printf("Distance to starting pos: %f\n", euclidian_dist(joint_state,traj_pos[1]));
		//printf("Resetting...\n");

		if (euclidian_dist(joint_state,q0) > dist || return_total_len < 2000) {
			for (i = 1; i <= N_DOFS; ++i) {
				joint_des_state[i].th = trajReturn[return_iter][3*i-2]; //q0[i];
				joint_des_state[i].thd = trajReturn[return_iter][3*i-1];
				joint_des_state[i].thdd = trajReturn[return_iter][3*i]; 
			}
			if (return_iter < returnLen) {
				return_iter++;
				return_total_len++;
			}
			else {
				return_total_len++;
				if (return_total_len % 500 == 0) {
					printf("euclidian dist: %f\n", euclidian_dist(joint_state,q0));
				}
				/*
				if (return_total_len == 1000) {
					printf("Initialization problem with PD. Turning on PID (if enabled with ck)...\n");
					turn_on_integrator();
				}*/
			}

			SL_InvDyn(NULL,joint_des_state,endeff,&base_state,&base_orient);
			if (friction_comp) {
				addFrictionModel(joint_des_state);
			}

			/*if (!check_range(joint_des_state)) {
				printf("q0 is out of range! Freezing...\n");
				freeze();
			}*/
			// add feedback from task servo
			//add_fb(traj_index);

			fprint_joint_act_traj(0);
			fprint_cart_act_traj(0);
		}
		else {
			if (repeat_flag) {
				
				return_iter = 1;
				return_total_len = 1;
				traj_index = 1;
				task_time = 0.0; //1./(double)task_servo_rate;
				flag_reset = FALSE; //go back to start
				save_act_traj(traj_index);
				fprint_joint_act_traj(traj_index);
				fprint_joint_des_traj(traj_index);
				fprint_cart_des_traj(traj_index);
				fprint_cart_act_traj(traj_index);
				toggle_fb(); // revert to lqr
				// get feedforward part to be changed
				
				if (num_it > 1) {// this is due to extreme good initialization firsttime
					//turn_on_integrator();
					time1 = get_time();			
					ilc_main();
					//update_basic();
					time2 = get_time();
					printf("ILC takes %.3f ms...\n",(time2-time1)/1000);
					//turn_off_integrator(); //turn integrators off again
				}
				num_it = num_it + 1; 
			}
			else {
				printf("Switching to NO TASK!\n");
				setTaskByName(NO_TASK);
				return TRUE;
			}

		}

	}
	else { // feedforward along the trajectory

		for (i = 1; i <= N_DOFS; i++) {

			joint_des_state[i].th  = traj_pos[traj_index][i];
			joint_des_state[i].thd = traj_vel[traj_index][i];
			joint_des_state[i].thdd = traj_acc[traj_index][i];
			joint_des_state[i].uff  = traj_uff[traj_index][i];
		}

		//SL_InvDyn(joint_state,joint_des_state,endeff,&base_state,&base_orient);
		task_time += 1./(double)task_servo_rate;

		if (!check_range(joint_des_state)) {
			printf("ILC exceeded torque limits. Freezing...\n");
			freeze();
		}

		// add feedback from task servo
		add_fb(traj_index);
	}

	return TRUE;

}