diff options
Diffstat (limited to 'drivers/misc/mei/hw-me.c')
| -rw-r--r-- | drivers/misc/mei/hw-me.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 1247be706216..678531c08c6d 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -101,6 +101,33 @@ static inline void mei_hcsr_set(struct mei_me_hw *hw, u32 hcsr) mei_me_reg_write(hw, H_CSR, hcsr); } +/** + * mei_me_fw_status - read fw status register from pci config space + * + * @dev: mei device + * @fw_status: fw status register values + */ +static int mei_me_fw_status(struct mei_device *dev, + struct mei_fw_status *fw_status) +{ + const struct mei_fw_status *fw_src = &dev->cfg->fw_status; + struct pci_dev *pdev = to_pci_dev(dev->dev); + int ret; + int i; + + if (!fw_status) + return -EINVAL; + + fw_status->count = fw_src->count; + for (i = 0; i < fw_src->count && i < MEI_FW_STATUS_MAX; i++) { + ret = pci_read_config_dword(pdev, + fw_src->status[i], &fw_status->status[i]); + if (ret) + return ret; + } + + return 0; +} /** * mei_me_hw_config - configure hw dependent settings @@ -714,6 +741,7 @@ end: static const struct mei_hw_ops mei_me_hw_ops = { + .fw_status = mei_me_fw_status, .pg_state = mei_me_pg_state, .host_is_ready = mei_me_host_is_ready, |