Commit 3bb6324b authored by Maciej Machnikowski's avatar Maciej Machnikowski Committed by Tony Nguyen
Browse files

ice: Implement functions for reading and setting GPIO pins 



Implement ice_aq_get_gpio and ice_aq_set_gpio for reading and changing
the state of GPIO pins described in the topology.

Signed-off-by: default avatarMaciej Machnikowski <maciej.machnikowski@intel.com>
Tested-by: default avatarSunitha Mekala <sunithax.d.mekala@intel.com>
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent e00ae1a2

drivers/net/ethernet/intel/ice/ice_adminq_cmd.h

+13 −0
Original line number Diff line number Diff line
@@ -1344,6 +1344,16 @@ 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;
@@ -1985,6 +1995,7 @@ struct ice_aq_desc { 
		struct ice_aqc_get_phy_caps get_phy;

		struct ice_aqc_set_phy_cfg set_phy;

		struct ice_aqc_restart_an restart_an;

		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;
@@ -2140,6 +2151,8 @@ enum ice_adminq_opc { 
	ice_aqc_opc_set_mac_lb				= 0x0620,

	ice_aqc_opc_get_link_topo			= 0x06E0,

	ice_aqc_opc_set_port_id_led			= 0x06E9,

	ice_aqc_opc_set_gpio				= 0x06EC,

	ice_aqc_opc_get_gpio				= 0x06ED,

	ice_aqc_opc_sff_eeprom				= 0x06EE,



	/* NVM commands */

drivers/net/ethernet/intel/ice/ice_common.c

+58 −0
Original line number Diff line number Diff line
@@ -4794,6 +4794,64 @@ ice_aq_get_driver_param(struct ice_hw *hw, enum ice_aqc_driver_params idx, 
	return 0;

}



/**

 * 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

 */

int

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 = cpu_to_le16(gpio_ctrl_handle);

	cmd->gpio_num = pin_idx;

	cmd->gpio_val = value ? 1 : 0;



	return ice_status_to_errno(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

 */

int

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 = cpu_to_le16(gpio_ctrl_handle);

	cmd->gpio_num = pin_idx;



	status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);

	if (status)

		return ice_status_to_errno(status);



	*value = !!cmd->gpio_val;

	return 0;

}



/**

 * ice_fw_supports_link_override

 * @hw: pointer to the hardware structure

drivers/net/ethernet/intel/ice/ice_common.h

+6 −0
Original line number Diff line number Diff line
@@ -192,6 +192,12 @@ ice_aq_set_driver_param(struct ice_hw *hw, enum ice_aqc_driver_params idx, 
int

ice_aq_get_driver_param(struct ice_hw *hw, enum ice_aqc_driver_params idx,

			u32 *value, struct ice_sq_cd *cd);

int

ice_aq_set_gpio(struct ice_hw *hw, u16 gpio_ctrl_handle, u8 pin_idx, bool value,

		struct ice_sq_cd *cd);

int

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);