platform/olpc/olpc-ec.c

19 #include <linux/olpc-ec.h>
79 	struct olpc_ec_priv *ec = container_of(w, struct olpc_ec_priv, worker);
84 	spin_lock_irqsave(&ec->cmd_q_lock, flags);
85 	if (!list_empty(&ec->cmd_q)) {
86 		desc = list_first_entry(&ec->cmd_q, struct ec_cmd_desc, node);
89 	spin_unlock_irqrestore(&ec->cmd_q_lock, flags);
96 	mutex_lock(&ec->cmd_lock);
99 	mutex_unlock(&ec->cmd_lock);
105 	schedule_work(&ec->worker);
113 		struct olpc_ec_priv *ec)
119 	spin_lock_irqsave(&ec->cmd_q_lock, flags);
120 	list_add_tail(&desc->node, &ec->cmd_q);
121 	spin_unlock_irqrestore(&ec->cmd_q_lock, flags);
123 	schedule_work(&ec->worker);
128 	struct olpc_ec_priv *ec = ec_priv;
138 	if (!ec)
142 	if (WARN_ON(ec->suspended))
155 	queue_ec_descriptor(&desc, ec);
167 	struct olpc_ec_priv *ec = ec_priv;
169 	if (WARN_ON(!ec))
172 	ec->ec_wakeup_mask |= value;
178 	struct olpc_ec_priv *ec = ec_priv;
180 	if (WARN_ON(!ec))
183 	ec->ec_wakeup_mask &= ~value;
189 	struct olpc_ec_priv *ec = ec_priv;
191 	if (WARN_ON(!ec))
195 	if (ec->version >= 0x5f) {
222 	struct olpc_ec_priv *ec = ec_priv;
225 	if (WARN_ON(!ec))
229 	if (ec->version >= 0x5f) {
281 		pr_debug("olpc-ec: bad ec cmd:  cmd:response-count [arg1 [arg2 ...]]\n");
291 	pr_debug("olpc-ec: debugfs cmd 0x%02x with %d args %5ph, want %d returns\n",
298 	pr_debug("olpc-ec: response %8ph (%d bytes expected)\n",
334 	dbgfs_dir = debugfs_create_dir("olpc-ec", NULL);
352 static int olpc_ec_set_dcon_power(struct olpc_ec_priv *ec, bool state)
357 	if (ec->dcon_enabled == state)
364 	ec->dcon_enabled = state;
370 	struct olpc_ec_priv *ec = rdev_get_drvdata(rdev);
372 	return olpc_ec_set_dcon_power(ec, true);
377 	struct olpc_ec_priv *ec = rdev_get_drvdata(rdev);
379 	return olpc_ec_set_dcon_power(ec, false);
384 	struct olpc_ec_priv *ec = rdev_get_drvdata(rdev);
386 	return ec->dcon_enabled ? 1 : 0;
406 	struct olpc_ec_priv *ec;
414 	ec = kzalloc(sizeof(*ec), GFP_KERNEL);
415 	if (!ec)
418 	ec->drv = ec_driver;
419 	INIT_WORK(&ec->worker, olpc_ec_worker);
420 	mutex_init(&ec->cmd_lock);
422 	INIT_LIST_HEAD(&ec->cmd_q);
423 	spin_lock_init(&ec->cmd_q_lock);
425 	ec_priv = ec;
426 	platform_set_drvdata(pdev, ec);
429 	err = olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, &ec->version, 1);
434 	config.driver_data = ec;
435 	ec->dcon_enabled = true;
443 	ec->dbgfs_dir = olpc_ec_setup_debugfs();
449 	kfree(ec);
456 	struct olpc_ec_priv *ec = platform_get_drvdata(pdev);
459 	olpc_ec_mask_write(ec->ec_wakeup_mask);
464 		ec->suspended = true;
472 	struct olpc_ec_priv *ec = platform_get_drvdata(pdev);
474 	ec->suspended = false;
486 		.name = "olpc-ec",