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Message-Id: <1409658604-31615-4-git-send-email-tomas.winkler@intel.com>
Date: Tue, 2 Sep 2014 14:50:01 +0300
From: Tomas Winkler <tomas.winkler@...el.com>
To: gregkh@...uxfoundation.org
Cc: arnd@...db.de, linux-kernel@...r.kernel.org,
Tomas Winkler <tomas.winkler@...el.com>
Subject: [char-misc-next 3/6] mei: move fw_status back to hw ops handlers
fw status retrieval has pci specific implementation
so we push it back to the hw layer
Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
drivers/misc/mei/hw-me.c | 28 ++++++++++++++++++++++++++++
drivers/misc/mei/hw-txe.c | 30 ++++++++++++++++++++++++++++++
drivers/misc/mei/init.c | 21 ---------------------
drivers/misc/mei/mei_dev.h | 9 ++++++++-
4 files changed, 66 insertions(+), 22 deletions(-)
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 1247be7..678531c 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,
diff --git a/drivers/misc/mei/hw-txe.c b/drivers/misc/mei/hw-txe.c
index acc475e..e4cb9dc 100644
--- a/drivers/misc/mei/hw-txe.c
+++ b/drivers/misc/mei/hw-txe.c
@@ -573,6 +573,35 @@ static int mei_txe_readiness_wait(struct mei_device *dev)
return 0;
}
+
+/**
+ * mei_txe_fw_status - read fw status register from pci config space
+ *
+ * @dev: mei device
+ * @fw_status: fw status register values
+ */
+static int mei_txe_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_txe_hw_config - configure hardware at the start of the devices
*
@@ -1064,6 +1093,7 @@ static const struct mei_hw_ops mei_txe_hw_ops = {
.host_is_ready = mei_txe_host_is_ready,
+ .fw_status = mei_txe_fw_status,
.pg_state = mei_txe_pg_state,
.hw_is_ready = mei_txe_hw_is_ready,
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 29aae7b..dd233fd 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -344,27 +344,6 @@ bool mei_write_is_idle(struct mei_device *dev)
}
EXPORT_SYMBOL_GPL(mei_write_is_idle);
-int mei_fw_status(struct mei_device *dev, struct mei_fw_status *fw_status)
-{
- const struct mei_fw_status *fw_src = &dev->cfg->fw_status;
- 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(dev->pdev,
- fw_src->status[i], &fw_status->status[i]);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mei_fw_status);
-
/**
* mei_device_init -- initialize mei_device structure
*
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 7051430..7080fff 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -233,6 +233,7 @@ struct mei_cl {
* @hw_start - start hw after reset
* @hw_config - configure hw
+ * @fw_status - get fw status registers
* @pg_state - power gating state of the device
* @pg_is_enabled - is power gating enabled
@@ -260,6 +261,8 @@ struct mei_hw_ops {
int (*hw_start)(struct mei_device *dev);
void (*hw_config)(struct mei_device *dev);
+
+ int (*fw_status)(struct mei_device *dev, struct mei_fw_status *fw_sts);
enum mei_pg_state (*pg_state)(struct mei_device *dev);
bool (*pg_is_enabled)(struct mei_device *dev);
@@ -731,7 +734,11 @@ static inline int mei_count_full_read_slots(struct mei_device *dev)
return dev->ops->rdbuf_full_slots(dev);
}
-int mei_fw_status(struct mei_device *dev, struct mei_fw_status *fw_status);
+static inline int mei_fw_status(struct mei_device *dev,
+ struct mei_fw_status *fw_status)
+{
+ return dev->ops->fw_status(dev, fw_status);
+}
#define FW_STS_FMT "%08X %08X"
#define FW_STS_PRM(fw_status) \
--
1.9.3
--
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