diff options
Diffstat (limited to 'drivers/misc/mei/wd.c')
-rw-r--r-- | drivers/misc/mei/wd.c | 77 |
1 files changed, 44 insertions, 33 deletions
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c index 9299a8c29a6..2413247fc39 100644 --- a/drivers/misc/mei/wd.c +++ b/drivers/misc/mei/wd.c @@ -21,11 +21,13 @@ #include <linux/sched.h> #include <linux/watchdog.h> -#include "mei_dev.h" -#include "hw.h" -#include "interface.h" #include <linux/mei.h> +#include "mei_dev.h" +#include "hbm.h" +#include "hw-me.h" +#include "client.h" + static const u8 mei_start_wd_params[] = { 0x02, 0x12, 0x13, 0x10 }; static const u8 mei_stop_wd_params[] = { 0x02, 0x02, 0x14, 0x10 }; @@ -62,30 +64,41 @@ static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout) */ int mei_wd_host_init(struct mei_device *dev) { - int id; - mei_cl_init(&dev->wd_cl, dev); + struct mei_cl *cl = &dev->wd_cl; + int i; + int ret; + + mei_cl_init(cl, dev); - /* look for WD client and connect to it */ - dev->wd_cl.state = MEI_FILE_DISCONNECTED; dev->wd_timeout = MEI_WD_DEFAULT_TIMEOUT; dev->wd_state = MEI_WD_IDLE; - /* Connect WD ME client to the host client */ - id = mei_me_cl_link(dev, &dev->wd_cl, - &mei_wd_guid, MEI_WD_HOST_CLIENT_ID); - if (id < 0) { + /* check for valid client id */ + i = mei_me_cl_by_uuid(dev, &mei_wd_guid); + if (i < 0) { dev_info(&dev->pdev->dev, "wd: failed to find the client\n"); return -ENOENT; } - if (mei_connect(dev, &dev->wd_cl)) { + cl->me_client_id = dev->me_clients[i].client_id; + + ret = mei_cl_link(cl, MEI_WD_HOST_CLIENT_ID); + + if (ret < 0) { + dev_info(&dev->pdev->dev, "wd: failed link client\n"); + return -ENOENT; + } + + cl->state = MEI_FILE_CONNECTING; + + if (mei_hbm_cl_connect_req(dev, cl)) { dev_err(&dev->pdev->dev, "wd: failed to connect to the client\n"); - dev->wd_cl.state = MEI_FILE_DISCONNECTED; - dev->wd_cl.host_client_id = 0; + cl->state = MEI_FILE_DISCONNECTED; + cl->host_client_id = 0; return -EIO; } - dev->wd_cl.timer_count = MEI_CONNECT_TIMEOUT; + cl->timer_count = MEI_CONNECT_TIMEOUT; return 0; } @@ -101,22 +114,21 @@ int mei_wd_host_init(struct mei_device *dev) */ int mei_wd_send(struct mei_device *dev) { - struct mei_msg_hdr *mei_hdr; + struct mei_msg_hdr hdr; - mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0]; - mei_hdr->host_addr = dev->wd_cl.host_client_id; - mei_hdr->me_addr = dev->wd_cl.me_client_id; - mei_hdr->msg_complete = 1; - mei_hdr->reserved = 0; + hdr.host_addr = dev->wd_cl.host_client_id; + hdr.me_addr = dev->wd_cl.me_client_id; + hdr.msg_complete = 1; + hdr.reserved = 0; if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE)) - mei_hdr->length = MEI_WD_START_MSG_SIZE; + hdr.length = MEI_WD_START_MSG_SIZE; else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_HDR_SIZE)) - mei_hdr->length = MEI_WD_STOP_MSG_SIZE; + hdr.length = MEI_WD_STOP_MSG_SIZE; else return -EINVAL; - return mei_write_message(dev, mei_hdr, dev->wd_data, mei_hdr->length); + return mei_write_message(dev, &hdr, dev->wd_data); } /** @@ -141,16 +153,16 @@ int mei_wd_stop(struct mei_device *dev) dev->wd_state = MEI_WD_STOPPING; - ret = mei_flow_ctrl_creds(dev, &dev->wd_cl); + ret = mei_cl_flow_ctrl_creds(&dev->wd_cl); if (ret < 0) goto out; - if (ret && dev->mei_host_buffer_is_empty) { + if (ret && dev->hbuf_is_ready) { ret = 0; - dev->mei_host_buffer_is_empty = false; + dev->hbuf_is_ready = false; if (!mei_wd_send(dev)) { - ret = mei_flow_ctrl_reduce(dev, &dev->wd_cl); + ret = mei_cl_flow_ctrl_reduce(&dev->wd_cl); if (ret) goto out; } else { @@ -270,10 +282,9 @@ static int mei_wd_ops_ping(struct watchdog_device *wd_dev) dev->wd_state = MEI_WD_RUNNING; /* Check if we can send the ping to HW*/ - if (dev->mei_host_buffer_is_empty && - mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) { + if (dev->hbuf_is_ready && mei_cl_flow_ctrl_creds(&dev->wd_cl) > 0) { - dev->mei_host_buffer_is_empty = false; + dev->hbuf_is_ready = false; dev_dbg(&dev->pdev->dev, "wd: sending ping\n"); if (mei_wd_send(dev)) { @@ -282,9 +293,9 @@ static int mei_wd_ops_ping(struct watchdog_device *wd_dev) goto end; } - if (mei_flow_ctrl_reduce(dev, &dev->wd_cl)) { + if (mei_cl_flow_ctrl_reduce(&dev->wd_cl)) { dev_err(&dev->pdev->dev, - "wd: mei_flow_ctrl_reduce() failed.\n"); + "wd: mei_cl_flow_ctrl_reduce() failed.\n"); ret = -EIO; goto end; } |