diff options
Diffstat (limited to 'drivers/misc/mei/amthif.c')
| -rw-r--r-- | drivers/misc/mei/amthif.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c index 392203d8d254..96db3ad21259 100644 --- a/drivers/misc/mei/amthif.c +++ b/drivers/misc/mei/amthif.c @@ -255,14 +255,15 @@ out: } /** - * mei_amthif_write - write amthif data to amthif client + * mei_amthif_send_cmd - send amthif command to the ME * * @dev: the device structure * @cb: mei call back struct * * returns 0 on success, <0 on failure. + * */ -int mei_amthif_write(struct mei_device *dev, struct mei_cl_cb *cb) +static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb) { struct mei_msg_hdr mei_hdr; int ret; @@ -329,6 +330,38 @@ int mei_amthif_write(struct mei_device *dev, struct mei_cl_cb *cb) } /** + * mei_amthif_write - write amthif data to amthif client + * + * @dev: the device structure + * @cb: mei call back struct + * + * returns 0 on success, <0 on failure. + * + */ +int mei_amthif_write(struct mei_device *dev, struct mei_cl_cb *cb) +{ + int ret; + + if (!dev || !cb) + return -ENODEV; + + ret = mei_io_cb_alloc_resp_buf(cb, dev->iamthif_mtu); + if (ret) + return ret; + + cb->major_file_operations = MEI_IOCTL; + + if (!list_empty(&dev->amthi_cmd_list.list) || + dev->iamthif_state != MEI_IAMTHIF_IDLE) { + dev_dbg(&dev->pdev->dev, + "amthif state = %d\n", dev->iamthif_state); + dev_dbg(&dev->pdev->dev, "AMTHIF: add cb to the wait list\n"); + list_add_tail(&cb->list, &dev->amthi_cmd_list.list); + return 0; + } + return mei_amthif_send_cmd(dev, cb); +} +/** * mei_amthif_run_next_cmd * * @dev: the device structure @@ -360,7 +393,7 @@ void mei_amthif_run_next_cmd(struct mei_device *dev) cl_tmp = (struct mei_cl *)pos->file_private; if (cl_tmp && cl_tmp == &dev->iamthif_cl) { - status = mei_amthif_write(dev, pos); + status = mei_amthif_send_cmd(dev, pos); if (status) { dev_dbg(&dev->pdev->dev, "amthi write failed status = %d\n", |