diff options
Diffstat (limited to 'drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h')
-rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h new file mode 100644 index 000000000000..e67954e31b14 --- /dev/null +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h @@ -0,0 +1,119 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. + * Copyright (c) 2023, Linaro Ltd. All rights reserved. + */ +#ifndef __QCOM_PMIC_PDPHY_H__ +#define __QCOM_PMIC_PDPHY_H__ + +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/usb/tcpm.h> + +#define USB_PDPHY_MAX_DATA_OBJ_LEN 28 +#define USB_PDPHY_MSG_HDR_LEN 2 + +/* PD PHY register offsets and bit fields */ +#define USB_PDPHY_MSG_CONFIG_REG 0x40 +#define MSG_CONFIG_PORT_DATA_ROLE BIT(3) +#define MSG_CONFIG_PORT_POWER_ROLE BIT(2) +#define MSG_CONFIG_SPEC_REV_MASK (BIT(1) | BIT(0)) + +#define USB_PDPHY_EN_CONTROL_REG 0x46 +#define CONTROL_ENABLE BIT(0) + +#define USB_PDPHY_RX_STATUS_REG 0x4A +#define RX_FRAME_TYPE (BIT(0) | BIT(1) | BIT(2)) + +#define USB_PDPHY_FRAME_FILTER_REG 0x4C +#define FRAME_FILTER_EN_HARD_RESET BIT(5) +#define FRAME_FILTER_EN_SOP BIT(0) + +#define USB_PDPHY_TX_SIZE_REG 0x42 +#define TX_SIZE_MASK 0xF + +#define USB_PDPHY_TX_CONTROL_REG 0x44 +#define TX_CONTROL_RETRY_COUNT(n) (((n) & 0x3) << 5) +#define TX_CONTROL_FRAME_TYPE(n) (((n) & 0x7) << 2) +#define TX_CONTROL_FRAME_TYPE_CABLE_RESET (0x1 << 2) +#define TX_CONTROL_SEND_SIGNAL BIT(1) +#define TX_CONTROL_SEND_MSG BIT(0) + +#define USB_PDPHY_RX_SIZE_REG 0x48 + +#define USB_PDPHY_RX_ACKNOWLEDGE_REG 0x4B +#define RX_BUFFER_TOKEN BIT(0) + +#define USB_PDPHY_BIST_MODE_REG 0x4E +#define BIST_MODE_MASK 0xF +#define BIST_ENABLE BIT(7) +#define PD_MSG_BIST 0x3 +#define PD_BIST_TEST_DATA_MODE 0x8 + +#define USB_PDPHY_TX_BUFFER_HDR_REG 0x60 +#define USB_PDPHY_TX_BUFFER_DATA_REG 0x62 + +#define USB_PDPHY_RX_BUFFER_REG 0x80 + +/* VDD regulator */ +#define VDD_PDPHY_VOL_MIN 2800000 /* uV */ +#define VDD_PDPHY_VOL_MAX 3300000 /* uV */ +#define VDD_PDPHY_HPM_LOAD 3000 /* uA */ + +/* Message Spec Rev field */ +#define PD_MSG_HDR_REV(hdr) (((hdr) >> 6) & 3) + +/* timers */ +#define RECEIVER_RESPONSE_TIME 15 /* tReceiverResponse */ +#define HARD_RESET_COMPLETE_TIME 5 /* tHardResetComplete */ + +/* Interrupt numbers */ +#define PMIC_PDPHY_SIG_TX_IRQ 0x0 +#define PMIC_PDPHY_SIG_RX_IRQ 0x1 +#define PMIC_PDPHY_MSG_TX_IRQ 0x2 +#define PMIC_PDPHY_MSG_RX_IRQ 0x3 +#define PMIC_PDPHY_MSG_TX_FAIL_IRQ 0x4 +#define PMIC_PDPHY_MSG_TX_DISCARD_IRQ 0x5 +#define PMIC_PDPHY_MSG_RX_DISCARD_IRQ 0x6 +#define PMIC_PDPHY_FR_SWAP_IRQ 0x7 + +/* Resources */ +#define PMIC_PDPHY_MAX_IRQS 0x08 + +struct pmic_typec_pdphy_irq_params { + int virq; + char *irq_name; +}; + +struct pmic_typec_pdphy_resources { + unsigned int nr_irqs; + struct pmic_typec_pdphy_irq_params irq_params[PMIC_PDPHY_MAX_IRQS]; +}; + +/* API */ +struct pmic_typec_pdphy; + +struct pmic_typec_pdphy *qcom_pmic_typec_pdphy_alloc(struct device *dev); + +int qcom_pmic_typec_pdphy_probe(struct platform_device *pdev, + struct pmic_typec_pdphy *pmic_typec_pdphy, + struct pmic_typec_pdphy_resources *res, + struct regmap *regmap, + u32 base); + +int qcom_pmic_typec_pdphy_start(struct pmic_typec_pdphy *pmic_typec_pdphy, + struct tcpm_port *tcpm_port); + +void qcom_pmic_typec_pdphy_stop(struct pmic_typec_pdphy *pmic_typec_pdphy); + +int qcom_pmic_typec_pdphy_set_roles(struct pmic_typec_pdphy *pmic_typec_pdphy, + bool power_role_src, bool data_role_host); + +int qcom_pmic_typec_pdphy_set_pd_rx(struct pmic_typec_pdphy *pmic_typec_pdphy, bool on); + +int qcom_pmic_typec_pdphy_pd_transmit(struct pmic_typec_pdphy *pmic_typec_pdphy, + enum tcpm_transmit_type type, + const struct pd_message *msg, + unsigned int negotiated_rev); + +#endif /* __QCOM_PMIC_TYPEC_PDPHY_H__ */ |