+/**
+ * ice_dpll_sma_direction_set - set direction of SMA pin
+ * @p: pointer to a pin
+ * @direction: requested direction of the pin
+ * @extack: error reporting
+ *
+ * Wrapper for dpll subsystem callback. Set direction of a SMA pin.
+ *
+ * Context: Call with pf->dplls.lock held
+ * Return:
+ * * 0 - success
+ * * negative - failed to get state
+ */
+static int ice_dpll_sma_direction_set(struct ice_dpll_pin *p,
+ enum dpll_pin_direction direction,
+ struct netlink_ext_ack *extack)
+{
+ u8 data;
+ int ret;
+
+ if (p->direction == direction && p->active)
+ return 0;
+ ret = ice_read_sma_ctrl(&p->pf->hw, &data);
+ if (ret)
+ return ret;
+
+ switch (p->idx) {
+ case ICE_DPLL_PIN_SW_1_IDX:
+ data &= ~ICE_SMA1_MASK;
+ if (direction == DPLL_PIN_DIRECTION_OUTPUT)
+ data |= ICE_SMA1_DIR_EN;
+ break;
+ case ICE_DPLL_PIN_SW_2_IDX:
+ if (direction == DPLL_PIN_DIRECTION_INPUT) {
+ data &= ~ICE_SMA2_DIR_EN;
+ } else {
+ data &= ~ICE_SMA2_TX_EN;
+ data |= ICE_SMA2_DIR_EN;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ ret = ice_write_sma_ctrl(&p->pf->hw, data);
+ if (!ret)
+ ret = ice_dpll_pin_state_update(p->pf, p,
+ ICE_DPLL_PIN_TYPE_SOFTWARE,
+ extack);
+
+ return ret;
+}
+
+/**
+ * ice_dpll_ufl_pin_state_set - set U.FL pin state on dpll device
+ * @pin: pointer to a pin
+ * @pin_priv: private data pointer passed on pin registration
+ * @dpll: registered dpll pointer
+ * @dpll_priv: private data pointer passed on dpll registration
+ * @state: requested state of the pin
+ * @extack: error reporting
+ *
+ * Dpll subsystem callback. Set the state of a pin.
+ *
+ * Context: Acquires and releases pf->dplls.lock
+ * Return:
+ * * 0 - success
+ * * negative - error
+ */
+static int
+ice_dpll_ufl_pin_state_set(const struct dpll_pin *pin, void *pin_priv,
+ const struct dpll_device *dpll, void *dpll_priv,
+ enum dpll_pin_state state,
+ struct netlink_ext_ack *extack)
+{
+ struct ice_dpll_pin *p = pin_priv, *target;
+ struct ice_dpll *d = dpll_priv;
+ enum ice_dpll_pin_type type;
+ struct ice_pf *pf = p->pf;
+ struct ice_hw *hw;
+ bool enable;
+ u8 data;
+ int ret;
+
+ if (ice_dpll_is_reset(pf, extack))
+ return -EBUSY;
+
+ mutex_lock(&pf->dplls.lock);
+ hw = &pf->hw;
+ ret = ice_read_sma_ctrl(hw, &data);
+ if (ret)
+ goto unlock;
+
+ ret = -EINVAL;
+ switch (p->idx) {
+ case ICE_DPLL_PIN_SW_1_IDX:
+ if (state == DPLL_PIN_STATE_CONNECTED) {
+ data &= ~ICE_SMA1_MASK;
+ enable = true;
+ } else if (state == DPLL_PIN_STATE_DISCONNECTED) {
+ data |= ICE_SMA1_TX_EN;
+ enable = false;
+ } else {
+ goto unlock;
+ }
+ target = p->output;
+ type = ICE_DPLL_PIN_TYPE_OUTPUT;
+ break;
+ case ICE_DPLL_PIN_SW_2_IDX:
+ if (state == DPLL_PIN_STATE_SELECTABLE) {
+ data |= ICE_SMA2_DIR_EN;
+ data &= ~ICE_SMA2_UFL2_RX_DIS;
+ enable = true;
+ } else if (state == DPLL_PIN_STATE_DISCONNECTED) {
+ data |= ICE_SMA2_UFL2_RX_DIS;
+ enable = false;
+ } else {
+ goto unlock;
+ }
+ target = p->input;
+ type = ICE_DPLL_PIN_TYPE_INPUT;
+ break;
+ default:
+ goto unlock;
+ }
+
+ ret = ice_write_sma_ctrl(hw, data);
+ if (ret)
+ goto unlock;
+ ret = ice_dpll_pin_state_update(pf, p, ICE_DPLL_PIN_TYPE_SOFTWARE,
+ extack);
+ if (ret)
+ goto unlock;
+
+ if (enable)
+ ret = ice_dpll_pin_enable(hw, target, d->dpll_idx, type, extack);
+ else
+ ret = ice_dpll_pin_disable(hw, target, type, extack);
+ if (!ret)
+ ret = ice_dpll_pin_state_update(pf, target, type, extack);
+
+unlock:
+ mutex_unlock(&pf->dplls.lock);
+
+ return ret;
+}
+
+/**
+ * ice_dpll_sw_pin_state_get - get SW pin state
+ * @pin: pointer to a pin
+ * @pin_priv: private data pointer passed on pin registration
+ * @dpll: registered dpll pointer
+ * @dpll_priv: private data pointer passed on dpll registration
+ * @state: on success holds state of the pin
+ * @extack: error reporting
+ *
+ * Dpll subsystem callback. Check state of a SW pin.
+ *
+ * Context: Acquires and releases pf->dplls.lock
+ * Return:
+ * * 0 - success
+ * * negative - error
+ */
+static int
+ice_dpll_sw_pin_state_get(const struct dpll_pin *pin, void *pin_priv,
+ const struct dpll_device *dpll, void *dpll_priv,
+ enum dpll_pin_state *state,
+ struct netlink_ext_ack *extack)
+{
+ struct ice_dpll_pin *p = pin_priv;
+ struct ice_dpll *d = dpll_priv;
+ struct ice_pf *pf = p->pf;
+ int ret = 0;
+
+ if (ice_dpll_is_reset(pf, extack))
+ return -EBUSY;
+ mutex_lock(&pf->dplls.lock);
+ if (!p->active) {
+ *state = DPLL_PIN_STATE_DISCONNECTED;
+ goto unlock;
+ }
+
+ if (p->direction == DPLL_PIN_DIRECTION_INPUT) {
+ ret = ice_dpll_pin_state_update(pf, p->input,
+ ICE_DPLL_PIN_TYPE_INPUT,
+ extack);
+ if (ret)
+ goto unlock;
+ *state = p->input->state[d->dpll_idx];
+ } else {
+ ret = ice_dpll_pin_state_update(pf, p->output,
+ ICE_DPLL_PIN_TYPE_OUTPUT,
+ extack);
+ if (ret)
+ goto unlock;
+ *state = p->output->state[d->dpll_idx];
+ }
+unlock:
+ mutex_unlock(&pf->dplls.lock);
+
+ return ret;
+}
+
+/**
+ * ice_dpll_sma_pin_state_set - set SMA pin state on dpll device
+ * @pin: pointer to a pin
+ * @pin_priv: private data pointer passed on pin registration
+ * @dpll: registered dpll pointer
+ * @dpll_priv: private data pointer passed on dpll registration
+ * @state: requested state of the pin
+ * @extack: error reporting
+ *
+ * Dpll subsystem callback. Set state of a pin.
+ *
+ * Context: Acquires and releases pf->dplls.lock
+ * Return:
+ * * 0 - success
+ * * negative - failed to get state
+ */
+static int
+ice_dpll_sma_pin_state_set(const struct dpll_pin *pin, void *pin_priv,
+ const struct dpll_device *dpll, void *dpll_priv,
+ enum dpll_pin_state state,
+ struct netlink_ext_ack *extack)
+{
+ struct ice_dpll_pin *sma = pin_priv, *target;
+ struct ice_dpll *d = dpll_priv;
+ struct ice_pf *pf = sma->pf;
+ enum ice_dpll_pin_type type;
+ bool enable;
+ int ret;
+
+ if (ice_dpll_is_reset(pf, extack))
+ return -EBUSY;
+
+ mutex_lock(&pf->dplls.lock);
+ if (!sma->active) {
+ ret = ice_dpll_sma_direction_set(sma, sma->direction, extack);
+ if (ret)
+ goto unlock;
+ }
+ if (sma->direction == DPLL_PIN_DIRECTION_INPUT) {
+ enable = state == DPLL_PIN_STATE_SELECTABLE;
+ target = sma->input;
+ type = ICE_DPLL_PIN_TYPE_INPUT;
+ } else {
+ enable = state == DPLL_PIN_STATE_CONNECTED;
+ target = sma->output;
+ type = ICE_DPLL_PIN_TYPE_OUTPUT;
+ }
+
+ if (enable)
+ ret = ice_dpll_pin_enable(&pf->hw, target, d->dpll_idx, type,
+ extack);
+ else
+ ret = ice_dpll_pin_disable(&pf->hw, target, type, extack);
+ if (!ret)
+ ret = ice_dpll_pin_state_update(pf, target, type, extack);
+
+unlock:
+ mutex_unlock(&pf->dplls.lock);
+
+ return ret;
+}
+