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