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mei: abstract host and device readieness

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Add mei_host_set_ready function to enable the device
and is_ready function to query the host and me readiness

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2013-01-08 23:07:29 +02:00
committed by Greg Kroah-Hartman
parent 9ea73ddd4f
commit 115ba28c5e
4 changed files with 54 additions and 18 deletions
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19
drivers/misc/mei/interrupt.c
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@@ -700,7 +700,7 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
dev->me_hw_state = mei_mecsr_read(dev);
/* check if ME wants a reset */
if ((dev->me_hw_state & ME_RDY_HRA) == 0 &&
if (!mei_me_is_ready(dev) &&
dev->dev_state != MEI_DEV_RESETING &&
dev->dev_state != MEI_DEV_INITIALIZING) {
dev_dbg(&dev->pdev->dev, "FW not ready.\n");
@@ -711,16 +711,17 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
dev->host_hw_state = mei_hcsr_read(dev);
/* check if we need to start the dev */
if ((dev->host_hw_state & H_RDY) == 0) {
if ((dev->me_hw_state & ME_RDY_HRA) == ME_RDY_HRA) {
if (!mei_host_is_ready(dev)) {
if (mei_me_is_ready(dev)) {
dev_dbg(&dev->pdev->dev, "we need to start the dev.\n");
dev->host_hw_state |= (H_IE | H_IG | H_RDY);
mei_hcsr_set(dev);
dev->dev_state = MEI_DEV_INIT_CLIENTS;
mei_host_set_ready(dev);
dev_dbg(&dev->pdev->dev, "link is established start sending messages.\n");
/* link is established
* start sending messages.
*/
/* link is established * start sending messages. */
dev->dev_state = MEI_DEV_INIT_CLIENTS;
mei_hbm_start_req(dev);
mutex_unlock(&dev->device_lock);
return IRQ_HANDLED;