diff mbox series

[v3,10/14] net/ice/base: add set/get GPIO helper functions

Message ID 20210413143038.2621294-11-qi.z.zhang@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Qi Zhang
Headers show
Series ice: base code update batch 2 | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Zhang, Qi Z April 13, 2021, 2:30 p.m. UTC
Add helper functions to set the GPIO pin state or get the value of a
GPIO signal that's the part of the topology based on AQ commands.
This change is needed to setup GPIO pins state for PTP, SyncE etc.

Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>
---
 drivers/net/ice/base/ice_adminq_cmd.h | 11 +++++
 drivers/net/ice/base/ice_common.c     | 58 +++++++++++++++++++++++++++
 drivers/net/ice/base/ice_common.h     |  6 +++
 3 files changed, 75 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ice/base/ice_adminq_cmd.h b/drivers/net/ice/base/ice_adminq_cmd.h
index f9a741e99f..6b662b3889 100644
--- a/drivers/net/ice/base/ice_adminq_cmd.h
+++ b/drivers/net/ice/base/ice_adminq_cmd.h
@@ -1701,6 +1701,16 @@  struct ice_aqc_set_port_id_led {
 	u8 rsvd[13];
 };
 
+/* Set/Get GPIO (direct, 0x06EC/0x06ED) */
+struct ice_aqc_gpio {
+	__le16 gpio_ctrl_handle;
+#define ICE_AQC_GPIO_HANDLE_S	0
+#define ICE_AQC_GPIO_HANDLE_M	(0x3FF << ICE_AQC_GPIO_HANDLE_S)
+	u8 gpio_num;
+	u8 gpio_val;
+	u8 rsvd[12];
+};
+
 /* Read/Write SFF EEPROM command (indirect 0x06EE) */
 struct ice_aqc_sff_eeprom {
 	u8 lport_num;
@@ -2865,6 +2875,7 @@  struct ice_aq_desc {
 		struct ice_aqc_restart_an restart_an;
 		struct ice_aqc_i2c read_write_i2c;
 		struct ice_aqc_read_i2c_resp read_i2c_resp;
+		struct ice_aqc_gpio read_write_gpio;
 		struct ice_aqc_sff_eeprom read_write_sff_param;
 		struct ice_aqc_set_port_id_led set_port_id_led;
 		struct ice_aqc_get_sw_cfg get_sw_conf;
diff --git a/drivers/net/ice/base/ice_common.c b/drivers/net/ice/base/ice_common.c
index befaa83a4b..2424f3b4b3 100644
--- a/drivers/net/ice/base/ice_common.c
+++ b/drivers/net/ice/base/ice_common.c
@@ -4860,6 +4860,64 @@  ice_aq_write_i2c(struct ice_hw *hw, struct ice_aqc_link_topo_addr topo_addr,
 	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
 }
 
+/**
+ * ice_aq_set_gpio
+ * @hw: pointer to the hw struct
+ * @gpio_ctrl_handle: GPIO controller node handle
+ * @pin_idx: IO Number of the GPIO that needs to be set
+ * @value: SW provide IO value to set in the LSB
+ * @cd: pointer to command details structure or NULL
+ *
+ * Sends 0x06EC AQ command to set the GPIO pin state that's part of the topology
+ */
+enum ice_status
+ice_aq_set_gpio(struct ice_hw *hw, u16 gpio_ctrl_handle, u8 pin_idx, bool value,
+		struct ice_sq_cd *cd)
+{
+	struct ice_aqc_gpio *cmd;
+	struct ice_aq_desc desc;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_gpio);
+	cmd = &desc.params.read_write_gpio;
+	cmd->gpio_ctrl_handle = gpio_ctrl_handle;
+	cmd->gpio_num = pin_idx;
+	cmd->gpio_val = value ? 1 : 0;
+
+	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
+}
+
+/**
+ * ice_aq_get_gpio
+ * @hw: pointer to the hw struct
+ * @gpio_ctrl_handle: GPIO controller node handle
+ * @pin_idx: IO Number of the GPIO that needs to be set
+ * @value: IO value read
+ * @cd: pointer to command details structure or NULL
+ *
+ * Sends 0x06ED AQ command to get the value of a GPIO signal which is part of
+ * the topology
+ */
+enum ice_status
+ice_aq_get_gpio(struct ice_hw *hw, u16 gpio_ctrl_handle, u8 pin_idx,
+		bool *value, struct ice_sq_cd *cd)
+{
+	struct ice_aqc_gpio *cmd;
+	struct ice_aq_desc desc;
+	enum ice_status status;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_gpio);
+	cmd = &desc.params.read_write_gpio;
+	cmd->gpio_ctrl_handle = gpio_ctrl_handle;
+	cmd->gpio_num = pin_idx;
+
+	status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
+	if (status)
+		return status;
+
+	*value = !!cmd->gpio_val;
+	return ICE_SUCCESS;
+}
+
 /**
  * ice_fw_supports_link_override
  * @hw: pointer to the hardware structure
diff --git a/drivers/net/ice/base/ice_common.h b/drivers/net/ice/base/ice_common.h
index f9e3ed1d67..62b5052797 100644
--- a/drivers/net/ice/base/ice_common.h
+++ b/drivers/net/ice/base/ice_common.h
@@ -220,6 +220,12 @@  enum ice_status
 ice_sched_query_elem(struct ice_hw *hw, u32 node_teid,
 		     struct ice_aqc_txsched_elem_data *buf);
 enum ice_status
+ice_aq_set_gpio(struct ice_hw *hw, u16 gpio_ctrl_handle, u8 pin_idx, bool value,
+		struct ice_sq_cd *cd);
+enum ice_status
+ice_aq_get_gpio(struct ice_hw *hw, u16 gpio_ctrl_handle, u8 pin_idx,
+		bool *value, struct ice_sq_cd *cd);
+enum ice_status
 ice_aq_set_lldp_mib(struct ice_hw *hw, u8 mib_type, void *buf, u16 buf_size,
 		    struct ice_sq_cd *cd);
 bool ice_fw_supports_lldp_fltr_ctrl(struct ice_hw *hw);