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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | /* SPDX-License-Identifier: GPL-1.0+ */ /* * Renesas USB driver * * Copyright (C) 2011 Renesas Solutions Corp. * Copyright (C) 2019 Renesas Electronics Corporation * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> */ #ifndef RENESAS_USB_MOD_H #define RENESAS_USB_MOD_H #include <linux/spinlock.h> #include <linux/usb/renesas_usbhs.h> #include "common.h" /* * struct */ struct usbhs_irq_state { u16 intsts0; u16 intsts1; u16 brdysts; u16 nrdysts; u16 bempsts; }; struct usbhs_mod { char *name; /* * entry point from common.c */ int (*start)(struct usbhs_priv *priv); int (*stop)(struct usbhs_priv *priv); /* * INTSTS0 */ /* DVST (DVSQ) */ int (*irq_dev_state)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); /* CTRT (CTSQ) */ int (*irq_ctrl_stage)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); /* BEMP / BEMPSTS */ int (*irq_empty)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); u16 irq_bempsts; /* BRDY / BRDYSTS */ int (*irq_ready)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); u16 irq_brdysts; /* * INTSTS1 */ /* ATTCHE */ int (*irq_attch)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); /* DTCHE */ int (*irq_dtch)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); /* SIGN */ int (*irq_sign)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); /* SACK */ int (*irq_sack)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); struct usbhs_priv *priv; }; struct usbhs_mod_info { struct usbhs_mod *mod[USBHS_MAX]; struct usbhs_mod *curt; /* current mod */ /* * INTSTS0 :: VBINT * * This function will be used as autonomy mode (runtime_pwctrl == 0) * when the platform doesn't have own get_vbus function. * * This callback cannot be member of "struct usbhs_mod" because it * will be used even though host/gadget has not been selected. */ int (*irq_vbus)(struct usbhs_priv *priv, struct usbhs_irq_state *irq_state); /* * This function will be used on any gadget mode. To simplify the code, * this member is in here. */ int (*get_vbus)(struct platform_device *pdev); }; /* * for host/gadget module */ struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id); struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv); void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *usb, int id); int usbhs_mod_is_host(struct usbhs_priv *priv); int usbhs_mod_change(struct usbhs_priv *priv, int id); int usbhs_mod_probe(struct usbhs_priv *priv); void usbhs_mod_remove(struct usbhs_priv *priv); void usbhs_mod_autonomy_mode(struct usbhs_priv *priv); void usbhs_mod_non_autonomy_mode(struct usbhs_priv *priv); /* * status functions */ int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state); int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state); /* * callback functions */ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod); #define usbhs_mod_call(priv, func, param...) \ ({ \ struct usbhs_mod *mod; \ mod = usbhs_mod_get_current(priv); \ !mod ? -ENODEV : \ !mod->func ? 0 : \ mod->func(param); \ }) #define usbhs_priv_to_modinfo(priv) (&priv->mod_info) #define usbhs_mod_info_call(priv, func, param...) \ ({ \ struct usbhs_mod_info *info; \ info = usbhs_priv_to_modinfo(priv); \ !info->func ? 0 : \ info->func(param); \ }) /* * host / gadget control */ #if defined(CONFIG_USB_RENESAS_USBHS_HCD) || \ defined(CONFIG_USB_RENESAS_USBHS_HCD_MODULE) extern int usbhs_mod_host_probe(struct usbhs_priv *priv); extern int usbhs_mod_host_remove(struct usbhs_priv *priv); #else static inline int usbhs_mod_host_probe(struct usbhs_priv *priv) { return 0; } static inline void usbhs_mod_host_remove(struct usbhs_priv *priv) { } #endif #if defined(CONFIG_USB_RENESAS_USBHS_UDC) || \ defined(CONFIG_USB_RENESAS_USBHS_UDC_MODULE) extern int usbhs_mod_gadget_probe(struct usbhs_priv *priv); extern void usbhs_mod_gadget_remove(struct usbhs_priv *priv); #else static inline int usbhs_mod_gadget_probe(struct usbhs_priv *priv) { return 0; } static inline void usbhs_mod_gadget_remove(struct usbhs_priv *priv) { } #endif #endif /* RENESAS_USB_MOD_H */ |