mei: extract AMTHI functions into the amthif.c file
Move AMT Host Interface functions into the new amthif.c file.
All functions has now common prefix: mei_amthif_
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 248f581..62f8b65 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -74,92 +74,6 @@
}
/**
- * _mei_cmpl_iamthif - processes completed iamthif operation.
- *
- * @dev: the device structure.
- * @cb_pos: callback block.
- */
-static void _mei_cmpl_iamthif(struct mei_device *dev, struct mei_cl_cb *cb_pos)
-{
- if (dev->iamthif_canceled != 1) {
- dev->iamthif_state = MEI_IAMTHIF_READ_COMPLETE;
- dev->iamthif_stall_timer = 0;
- memcpy(cb_pos->response_buffer.data,
- dev->iamthif_msg_buf,
- dev->iamthif_msg_buf_index);
- list_add_tail(&cb_pos->list, &dev->amthi_read_complete_list.list);
- dev_dbg(&dev->pdev->dev, "amthi read completed\n");
- dev->iamthif_timer = jiffies;
- dev_dbg(&dev->pdev->dev, "dev->iamthif_timer = %ld\n",
- dev->iamthif_timer);
- } else {
- mei_run_next_iamthif_cmd(dev);
- }
-
- dev_dbg(&dev->pdev->dev, "completing amthi call back.\n");
- wake_up_interruptible(&dev->iamthif_cl.wait);
-}
-
-
-/**
- * mei_irq_thread_read_amthi_message - bottom half read routine after ISR to
- * handle the read amthi message data processing.
- *
- * @complete_list: An instance of our list structure
- * @dev: the device structure
- * @mei_hdr: header of amthi message
- *
- * returns 0 on success, <0 on failure.
- */
-static int mei_irq_thread_read_amthi_message(struct mei_cl_cb *complete_list,
- struct mei_device *dev,
- struct mei_msg_hdr *mei_hdr)
-{
- struct mei_cl *cl;
- struct mei_cl_cb *cb;
- unsigned char *buffer;
-
- BUG_ON(mei_hdr->me_addr != dev->iamthif_cl.me_client_id);
- BUG_ON(dev->iamthif_state != MEI_IAMTHIF_READING);
-
- buffer = dev->iamthif_msg_buf + dev->iamthif_msg_buf_index;
- BUG_ON(dev->iamthif_mtu < dev->iamthif_msg_buf_index + mei_hdr->length);
-
- mei_read_slots(dev, buffer, mei_hdr->length);
-
- dev->iamthif_msg_buf_index += mei_hdr->length;
-
- if (!mei_hdr->msg_complete)
- return 0;
-
- dev_dbg(&dev->pdev->dev,
- "amthi_message_buffer_index =%d\n",
- mei_hdr->length);
-
- dev_dbg(&dev->pdev->dev, "completed amthi read.\n ");
- if (!dev->iamthif_current_cb)
- return -ENODEV;
-
- cb = dev->iamthif_current_cb;
- dev->iamthif_current_cb = NULL;
-
- cl = (struct mei_cl *)cb->file_private;
- if (!cl)
- return -ENODEV;
-
- dev->iamthif_stall_timer = 0;
- cb->buf_idx = dev->iamthif_msg_buf_index;
- cb->read_time = jiffies;
- if (dev->iamthif_ioctl && cl == &dev->iamthif_cl) {
- /* found the iamthif cb */
- dev_dbg(&dev->pdev->dev, "complete the amthi read cb.\n ");
- dev_dbg(&dev->pdev->dev, "add the amthi read cb to complete.\n ");
- list_add_tail(&cb->list, &complete_list->list);
- }
- return 0;
-}
-
-/**
* _mei_irq_thread_state_ok - checks if mei header matches file private data
*
* @cl: private data of the file object
@@ -244,37 +158,6 @@
}
/**
- * _mei_irq_thread_iamthif_read - prepares to read iamthif data.
- *
- * @dev: the device structure.
- * @slots: free slots.
- *
- * returns 0, OK; otherwise, error.
- */
-static int _mei_irq_thread_iamthif_read(struct mei_device *dev, s32 *slots)
-{
-
- if (((*slots) * sizeof(u32)) < (sizeof(struct mei_msg_hdr)
- + sizeof(struct hbm_flow_control))) {
- return -EMSGSIZE;
- }
- *slots -= mei_data2slots(sizeof(struct hbm_flow_control));
- if (mei_send_flow_control(dev, &dev->iamthif_cl)) {
- dev_dbg(&dev->pdev->dev, "iamthif flow control failed\n");
- return -EIO;
- }
-
- dev_dbg(&dev->pdev->dev, "iamthif flow control success\n");
- dev->iamthif_state = MEI_IAMTHIF_READING;
- dev->iamthif_flow_control_pending = false;
- dev->iamthif_msg_buf_index = 0;
- dev->iamthif_msg_buf_size = 0;
- dev->iamthif_stall_timer = MEI_IAMTHIF_STALL_TIMER;
- dev->mei_host_buffer_is_empty = mei_hbuf_is_empty(dev);
- return 0;
-}
-
-/**
* _mei_irq_thread_close - processes close related operation.
*
* @dev: the device structure.
@@ -370,7 +253,7 @@
mei_watchdog_register(dev);
/* next step in the state maching */
- mei_host_init_iamthif(dev);
+ mei_amthif_host_init(dev);
return;
}
@@ -728,7 +611,7 @@
* will be received
*/
if (mei_wd_host_init(dev))
- mei_host_init_iamthif(dev);
+ mei_amthif_host_init(dev);
}
} else {
@@ -964,87 +847,6 @@
}
/**
- * _mei_irq_thread_cmpl_iamthif - processes completed iamthif operation.
- *
- * @dev: the device structure.
- * @slots: free slots.
- * @cb_pos: callback block.
- * @cl: private data of the file object.
- * @cmpl_list: complete list.
- *
- * returns 0, OK; otherwise, error.
- */
-static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
- struct mei_cl_cb *cb_pos,
- struct mei_cl *cl,
- struct mei_cl_cb *cmpl_list)
-{
- struct mei_msg_hdr *mei_hdr;
-
- if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
- dev->iamthif_msg_buf_size -
- dev->iamthif_msg_buf_index)) {
- mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0];
- mei_hdr->host_addr = cl->host_client_id;
- mei_hdr->me_addr = cl->me_client_id;
- mei_hdr->length = dev->iamthif_msg_buf_size -
- dev->iamthif_msg_buf_index;
- mei_hdr->msg_complete = 1;
- mei_hdr->reserved = 0;
-
- *slots -= mei_data2slots(mei_hdr->length);
-
- if (mei_write_message(dev, mei_hdr,
- (dev->iamthif_msg_buf +
- dev->iamthif_msg_buf_index),
- mei_hdr->length)) {
- dev->iamthif_state = MEI_IAMTHIF_IDLE;
- cl->status = -ENODEV;
- list_del(&cb_pos->list);
- return -ENODEV;
- } else {
- if (mei_flow_ctrl_reduce(dev, cl))
- return -ENODEV;
- dev->iamthif_msg_buf_index += mei_hdr->length;
- cb_pos->buf_idx = dev->iamthif_msg_buf_index;
- cl->status = 0;
- dev->iamthif_state = MEI_IAMTHIF_FLOW_CONTROL;
- dev->iamthif_flow_control_pending = true;
- /* save iamthif cb sent to amthi client */
- dev->iamthif_current_cb = cb_pos;
- list_move_tail(&cb_pos->list, &dev->write_waiting_list.list);
-
- }
- } else if (*slots == dev->hbuf_depth) {
- /* buffer is still empty */
- mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0];
- mei_hdr->host_addr = cl->host_client_id;
- mei_hdr->me_addr = cl->me_client_id;
- mei_hdr->length =
- (*slots * sizeof(u32)) - sizeof(struct mei_msg_hdr);
- mei_hdr->msg_complete = 0;
- mei_hdr->reserved = 0;
-
- *slots -= mei_data2slots(mei_hdr->length);
-
- if (mei_write_message(dev, mei_hdr,
- (dev->iamthif_msg_buf +
- dev->iamthif_msg_buf_index),
- mei_hdr->length)) {
- cl->status = -ENODEV;
- list_del(&cb_pos->list);
- } else {
- dev->iamthif_msg_buf_index += mei_hdr->length;
- }
- return -EMSGSIZE;
- } else {
- return -EBADMSG;
- }
-
- return 0;
-}
-
-/**
* mei_irq_thread_read_handler - bottom half read routine after ISR to
* handle the read processing.
*
@@ -1117,8 +919,8 @@
dev_dbg(&dev->pdev->dev, "call mei_irq_thread_read_iamthif_message.\n");
dev_dbg(&dev->pdev->dev, "mei_hdr->length =%d\n",
mei_hdr->length);
- ret = mei_irq_thread_read_amthi_message(cmpl_list,
- dev, mei_hdr);
+
+ ret = mei_amthif_irq_read_message(cmpl_list, dev, mei_hdr);
if (ret)
goto end;
@@ -1195,7 +997,7 @@
if (cl == &dev->iamthif_cl) {
dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
if (dev->iamthif_flow_control_pending) {
- ret = _mei_irq_thread_iamthif_read(dev, slots);
+ ret = mei_amthif_irq_read(dev, slots);
if (ret)
return ret;
}
@@ -1300,8 +1102,8 @@
cl->host_client_id);
continue;
}
- ret = _mei_irq_thread_cmpl_iamthif(dev, slots, pos,
- cl, cmpl_list);
+ ret = mei_amthif_irq_process_completed(dev, slots, pos,
+ cl, cmpl_list);
if (ret)
return ret;
@@ -1372,7 +1174,7 @@
dev->iamthif_current_cb = NULL;
dev->iamthif_file_object = NULL;
- mei_run_next_iamthif_cmd(dev);
+ mei_amthif_run_next_cmd(dev);
}
}
@@ -1409,7 +1211,7 @@
dev->iamthif_file_object->private_data = NULL;
dev->iamthif_file_object = NULL;
dev->iamthif_timer = 0;
- mei_run_next_iamthif_cmd(dev);
+ mei_amthif_run_next_cmd(dev);
}
}
@@ -1524,7 +1326,7 @@
_mei_cmpl(cl, cb_pos);
cb_pos = NULL;
} else if (cl == &dev->iamthif_cl) {
- _mei_cmpl_iamthif(dev, cb_pos);
+ mei_amthif_complete(dev, cb_pos);
}
}
}