diff options
Diffstat (limited to 'include/linux/usb/chipidea.h')
| -rw-r--r-- | include/linux/usb/chipidea.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h new file mode 100644 index 000000000..0b4f2d5fa --- /dev/null +++ b/include/linux/usb/chipidea.h @@ -0,0 +1,113 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Platform data for the chipidea USB dual role controller + */ + +#ifndef __LINUX_USB_CHIPIDEA_H +#define __LINUX_USB_CHIPIDEA_H + +#include <linux/extcon.h> +#include <linux/usb/otg.h> + +struct ci_hdrc; + +/** + * struct ci_hdrc_cable - structure for external connector cable state tracking + * @connected: true if cable is connected, false otherwise + * @changed: set to true when extcon event happen + * @enabled: set to true if we've enabled the vbus or id interrupt + * @edev: device which generate events + * @ci: driver state of the chipidea device + * @nb: hold event notification callback + * @conn: used for notification registration + */ +struct ci_hdrc_cable { + bool connected; + bool changed; + bool enabled; + struct extcon_dev *edev; + struct ci_hdrc *ci; + struct notifier_block nb; +}; + +struct ci_hdrc_platform_data { + const char *name; + /* offset of the capability registers */ + uintptr_t capoffset; + unsigned power_budget; + struct phy *phy; + /* old usb_phy interface */ + struct usb_phy *usb_phy; + enum usb_phy_interface phy_mode; + unsigned long flags; +#define CI_HDRC_REGS_SHARED BIT(0) +#define CI_HDRC_DISABLE_DEVICE_STREAMING BIT(1) +#define CI_HDRC_SUPPORTS_RUNTIME_PM BIT(2) +#define CI_HDRC_DISABLE_HOST_STREAMING BIT(3) +#define CI_HDRC_DISABLE_STREAMING (CI_HDRC_DISABLE_DEVICE_STREAMING | \ + CI_HDRC_DISABLE_HOST_STREAMING) + /* + * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1, + * but otg is not supported (no register otgsc). + */ +#define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4) +#define CI_HDRC_IMX28_WRITE_FIX BIT(5) +#define CI_HDRC_FORCE_FULLSPEED BIT(6) +#define CI_HDRC_TURN_VBUS_EARLY_ON BIT(7) +#define CI_HDRC_SET_NON_ZERO_TTHA BIT(8) +#define CI_HDRC_OVERRIDE_AHB_BURST BIT(9) +#define CI_HDRC_OVERRIDE_TX_BURST BIT(10) +#define CI_HDRC_OVERRIDE_RX_BURST BIT(11) +#define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(12) /* Glue layer manages phy */ +#define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(13) +#define CI_HDRC_IMX_IS_HSIC BIT(14) +#define CI_HDRC_PMQOS BIT(15) +#define CI_HDRC_PHY_VBUS_CONTROL BIT(16) +#define CI_HDRC_HAS_PORTSC_PEC_MISSED BIT(17) + enum usb_dr_mode dr_mode; +#define CI_HDRC_CONTROLLER_RESET_EVENT 0 +#define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 +#define CI_HDRC_IMX_HSIC_ACTIVE_EVENT 2 +#define CI_HDRC_IMX_HSIC_SUSPEND_EVENT 3 +#define CI_HDRC_CONTROLLER_VBUS_EVENT 4 + int (*notify_event) (struct ci_hdrc *ci, unsigned event); + struct regulator *reg_vbus; + struct usb_otg_caps ci_otg_caps; + bool tpl_support; + /* interrupt threshold setting */ + u32 itc_setting; + u32 ahb_burst_config; + u32 tx_burst_size; + u32 rx_burst_size; + + /* VBUS and ID signal state tracking, using extcon framework */ + struct ci_hdrc_cable vbus_extcon; + struct ci_hdrc_cable id_extcon; + u32 phy_clkgate_delay_us; + + /* pins */ + struct pinctrl *pctl; + struct pinctrl_state *pins_default; + struct pinctrl_state *pins_host; + struct pinctrl_state *pins_device; + + /* platform-specific hooks */ + int (*hub_control)(struct ci_hdrc *ci, u16 typeReq, u16 wValue, + u16 wIndex, char *buf, u16 wLength, + bool *done, unsigned long *flags); + void (*enter_lpm)(struct ci_hdrc *ci, bool enable); +}; + +/* Default offset of capability registers */ +#define DEF_CAPOFFSET 0x100 + +/* Add ci hdrc device */ +struct platform_device *ci_hdrc_add_device(struct device *dev, + struct resource *res, int nres, + struct ci_hdrc_platform_data *platdata); +/* Remove ci hdrc device */ +void ci_hdrc_remove_device(struct platform_device *pdev); +/* Get current available role */ +enum usb_dr_mode ci_hdrc_query_available_role(struct platform_device *pdev); + +#endif |