1 // SPDX-License-Identifier: GPL-1.0+ 2 /* 3 * Renesas USB driver 4 * 5 * Copyright (C) 2011 Renesas Solutions Corp. 6 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 7 */ 8 #ifndef RENESAS_USB_DRIVER_H 9 #define RENESAS_USB_DRIVER_H 10 11 #include <linux/extcon.h> 12 #include <linux/platform_device.h> 13 #include <linux/usb/renesas_usbhs.h> 14 15 struct usbhs_priv; 16 17 #include "mod.h" 18 #include "pipe.h" 19 20 /* 21 * 22 * register define 23 * 24 */ 25 #define SYSCFG 0x0000 26 #define BUSWAIT 0x0002 27 #define DVSTCTR 0x0008 28 #define TESTMODE 0x000C 29 #define CFIFO 0x0014 30 #define CFIFOSEL 0x0020 31 #define CFIFOCTR 0x0022 32 #define D0FIFO 0x0100 33 #define D0FIFOSEL 0x0028 34 #define D0FIFOCTR 0x002A 35 #define D1FIFO 0x0120 36 #define D1FIFOSEL 0x002C 37 #define D1FIFOCTR 0x002E 38 #define INTENB0 0x0030 39 #define INTENB1 0x0032 40 #define BRDYENB 0x0036 41 #define NRDYENB 0x0038 42 #define BEMPENB 0x003A 43 #define INTSTS0 0x0040 44 #define INTSTS1 0x0042 45 #define BRDYSTS 0x0046 46 #define NRDYSTS 0x0048 47 #define BEMPSTS 0x004A 48 #define FRMNUM 0x004C 49 #define USBREQ 0x0054 /* USB request type register */ 50 #define USBVAL 0x0056 /* USB request value register */ 51 #define USBINDX 0x0058 /* USB request index register */ 52 #define USBLENG 0x005A /* USB request length register */ 53 #define DCPCFG 0x005C 54 #define DCPMAXP 0x005E 55 #define DCPCTR 0x0060 56 #define PIPESEL 0x0064 57 #define PIPECFG 0x0068 58 #define PIPEBUF 0x006A 59 #define PIPEMAXP 0x006C 60 #define PIPEPERI 0x006E 61 #define PIPEnCTR 0x0070 62 #define PIPE1TRE 0x0090 63 #define PIPE1TRN 0x0092 64 #define PIPE2TRE 0x0094 65 #define PIPE2TRN 0x0096 66 #define PIPE3TRE 0x0098 67 #define PIPE3TRN 0x009A 68 #define PIPE4TRE 0x009C 69 #define PIPE4TRN 0x009E 70 #define PIPE5TRE 0x00A0 71 #define PIPE5TRN 0x00A2 72 #define PIPEBTRE 0x00A4 73 #define PIPEBTRN 0x00A6 74 #define PIPECTRE 0x00A8 75 #define PIPECTRN 0x00AA 76 #define PIPEDTRE 0x00AC 77 #define PIPEDTRN 0x00AE 78 #define PIPEETRE 0x00B0 79 #define PIPEETRN 0x00B2 80 #define PIPEFTRE 0x00B4 81 #define PIPEFTRN 0x00B6 82 #define PIPE9TRE 0x00B8 83 #define PIPE9TRN 0x00BA 84 #define PIPEATRE 0x00BC 85 #define PIPEATRN 0x00BE 86 #define DEVADD0 0x00D0 /* Device address n configuration */ 87 #define DEVADD1 0x00D2 88 #define DEVADD2 0x00D4 89 #define DEVADD3 0x00D6 90 #define DEVADD4 0x00D8 91 #define DEVADD5 0x00DA 92 #define DEVADD6 0x00DC 93 #define DEVADD7 0x00DE 94 #define DEVADD8 0x00E0 95 #define DEVADD9 0x00E2 96 #define DEVADDA 0x00E4 97 #define D2FIFOSEL 0x00F0 /* for R-Car Gen2 */ 98 #define D2FIFOCTR 0x00F2 /* for R-Car Gen2 */ 99 #define D3FIFOSEL 0x00F4 /* for R-Car Gen2 */ 100 #define D3FIFOCTR 0x00F6 /* for R-Car Gen2 */ 101 102 /* SYSCFG */ 103 #define SCKE (1 << 10) /* USB Module Clock Enable */ 104 #define HSE (1 << 7) /* High-Speed Operation Enable */ 105 #define DCFM (1 << 6) /* Controller Function Select */ 106 #define DRPD (1 << 5) /* D+ Line/D- Line Resistance Control */ 107 #define DPRPU (1 << 4) /* D+ Line Resistance Control */ 108 #define USBE (1 << 0) /* USB Module Operation Enable */ 109 110 /* DVSTCTR */ 111 #define EXTLP (1 << 10) /* Controls the EXTLP pin output state */ 112 #define PWEN (1 << 9) /* Controls the PWEN pin output state */ 113 #define USBRST (1 << 6) /* Bus Reset Output */ 114 #define UACT (1 << 4) /* USB Bus Enable */ 115 #define RHST (0x7) /* Reset Handshake */ 116 #define RHST_LOW_SPEED 1 /* Low-speed connection */ 117 #define RHST_FULL_SPEED 2 /* Full-speed connection */ 118 #define RHST_HIGH_SPEED 3 /* High-speed connection */ 119 120 /* CFIFOSEL */ 121 #define DREQE (1 << 12) /* DMA Transfer Request Enable */ 122 #define MBW_32 (0x2 << 10) /* CFIFO Port Access Bit Width */ 123 124 /* CFIFOCTR */ 125 #define BVAL (1 << 15) /* Buffer Memory Enable Flag */ 126 #define BCLR (1 << 14) /* CPU buffer clear */ 127 #define FRDY (1 << 13) /* FIFO Port Ready */ 128 #define DTLN_MASK (0x0FFF) /* Receive Data Length */ 129 130 /* INTENB0 */ 131 #define VBSE (1 << 15) /* Enable IRQ VBUS_0 and VBUSIN_0 */ 132 #define RSME (1 << 14) /* Enable IRQ Resume */ 133 #define SOFE (1 << 13) /* Enable IRQ Frame Number Update */ 134 #define DVSE (1 << 12) /* Enable IRQ Device State Transition */ 135 #define CTRE (1 << 11) /* Enable IRQ Control Stage Transition */ 136 #define BEMPE (1 << 10) /* Enable IRQ Buffer Empty */ 137 #define NRDYE (1 << 9) /* Enable IRQ Buffer Not Ready Response */ 138 #define BRDYE (1 << 8) /* Enable IRQ Buffer Ready */ 139 140 /* INTENB1 */ 141 #define BCHGE (1 << 14) /* USB Bus Change Interrupt Enable */ 142 #define DTCHE (1 << 12) /* Disconnection Detect Interrupt Enable */ 143 #define ATTCHE (1 << 11) /* Connection Detect Interrupt Enable */ 144 #define EOFERRE (1 << 6) /* EOF Error Detect Interrupt Enable */ 145 #define SIGNE (1 << 5) /* Setup Transaction Error Interrupt Enable */ 146 #define SACKE (1 << 4) /* Setup Transaction ACK Interrupt Enable */ 147 148 /* INTSTS0 */ 149 #define VBINT (1 << 15) /* VBUS0_0 and VBUS1_0 Interrupt Status */ 150 #define DVST (1 << 12) /* Device State Transition Interrupt Status */ 151 #define CTRT (1 << 11) /* Control Stage Interrupt Status */ 152 #define BEMP (1 << 10) /* Buffer Empty Interrupt Status */ 153 #define BRDY (1 << 8) /* Buffer Ready Interrupt Status */ 154 #define VBSTS (1 << 7) /* VBUS_0 and VBUSIN_0 Input Status */ 155 #define VALID (1 << 3) /* USB Request Receive */ 156 157 #define DVSQ_MASK (0x3 << 4) /* Device State */ 158 #define POWER_STATE (0 << 4) 159 #define DEFAULT_STATE (1 << 4) 160 #define ADDRESS_STATE (2 << 4) 161 #define CONFIGURATION_STATE (3 << 4) 162 163 #define CTSQ_MASK (0x7) /* Control Transfer Stage */ 164 #define IDLE_SETUP_STAGE 0 /* Idle stage or setup stage */ 165 #define READ_DATA_STAGE 1 /* Control read data stage */ 166 #define READ_STATUS_STAGE 2 /* Control read status stage */ 167 #define WRITE_DATA_STAGE 3 /* Control write data stage */ 168 #define WRITE_STATUS_STAGE 4 /* Control write status stage */ 169 #define NODATA_STATUS_STAGE 5 /* Control write NoData status stage */ 170 #define SEQUENCE_ERROR 6 /* Control transfer sequence error */ 171 172 /* INTSTS1 */ 173 #define OVRCR (1 << 15) /* OVRCR Interrupt Status */ 174 #define BCHG (1 << 14) /* USB Bus Change Interrupt Status */ 175 #define DTCH (1 << 12) /* USB Disconnection Detect Interrupt Status */ 176 #define ATTCH (1 << 11) /* ATTCH Interrupt Status */ 177 #define EOFERR (1 << 6) /* EOF Error Detect Interrupt Status */ 178 #define SIGN (1 << 5) /* Setup Transaction Error Interrupt Status */ 179 #define SACK (1 << 4) /* Setup Transaction ACK Response Interrupt Status */ 180 181 /* PIPECFG */ 182 /* DCPCFG */ 183 #define TYPE_NONE (0 << 14) /* Transfer Type */ 184 #define TYPE_BULK (1 << 14) 185 #define TYPE_INT (2 << 14) 186 #define TYPE_ISO (3 << 14) 187 #define BFRE (1 << 10) /* BRDY Interrupt Operation Spec. */ 188 #define DBLB (1 << 9) /* Double Buffer Mode */ 189 #define SHTNAK (1 << 7) /* Pipe Disable in Transfer End */ 190 #define DIR_OUT (1 << 4) /* Transfer Direction */ 191 192 /* PIPEMAXP */ 193 /* DCPMAXP */ 194 #define DEVSEL_MASK (0xF << 12) /* Device Select */ 195 #define DCP_MAXP_MASK (0x7F) 196 #define PIPE_MAXP_MASK (0x7FF) 197 198 /* PIPEBUF */ 199 #define BUFSIZE_SHIFT 10 200 #define BUFSIZE_MASK (0x1F << BUFSIZE_SHIFT) 201 #define BUFNMB_MASK (0xFF) 202 203 /* PIPEnCTR */ 204 /* DCPCTR */ 205 #define BSTS (1 << 15) /* Buffer Status */ 206 #define SUREQ (1 << 14) /* Sending SETUP Token */ 207 #define CSSTS (1 << 12) /* CSSTS Status */ 208 #define ACLRM (1 << 9) /* Buffer Auto-Clear Mode */ 209 #define SQCLR (1 << 8) /* Toggle Bit Clear */ 210 #define SQSET (1 << 7) /* Toggle Bit Set */ 211 #define SQMON (1 << 6) /* Toggle Bit Check */ 212 #define PBUSY (1 << 5) /* Pipe Busy */ 213 #define PID_MASK (0x3) /* Response PID */ 214 #define PID_NAK 0 215 #define PID_BUF 1 216 #define PID_STALL10 2 217 #define PID_STALL11 3 218 219 #define CCPL (1 << 2) /* Control Transfer End Enable */ 220 221 /* PIPEnTRE */ 222 #define TRENB (1 << 9) /* Transaction Counter Enable */ 223 #define TRCLR (1 << 8) /* Transaction Counter Clear */ 224 225 /* FRMNUM */ 226 #define FRNM_MASK (0x7FF) 227 228 /* DEVADDn */ 229 #define UPPHUB(x) (((x) & 0xF) << 11) /* HUB Register */ 230 #define HUBPORT(x) (((x) & 0x7) << 8) /* HUB Port for Target Device */ 231 #define USBSPD(x) (((x) & 0x3) << 6) /* Device Transfer Rate */ 232 #define USBSPD_SPEED_LOW 0x1 233 #define USBSPD_SPEED_FULL 0x2 234 #define USBSPD_SPEED_HIGH 0x3 235 236 /* 237 * struct 238 */ 239 struct usbhs_priv { 240 241 void __iomem *base; 242 unsigned int irq; 243 unsigned long irqflags; 244 245 struct renesas_usbhs_platform_callback pfunc; 246 struct renesas_usbhs_driver_param dparam; 247 248 struct delayed_work notify_hotplug_work; 249 struct platform_device *pdev; 250 251 struct extcon_dev *edev; 252 253 spinlock_t lock; 254 255 u32 flags; 256 257 /* 258 * module control 259 */ 260 struct usbhs_mod_info mod_info; 261 262 /* 263 * pipe control 264 */ 265 struct usbhs_pipe_info pipe_info; 266 267 /* 268 * fifo control 269 */ 270 struct usbhs_fifo_info fifo_info; 271 272 struct usb_phy *usb_phy; 273 struct phy *phy; 274 }; 275 276 /* 277 * common 278 */ 279 u16 usbhs_read(struct usbhs_priv *priv, u32 reg); 280 void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data); 281 void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data); 282 283 #define usbhs_lock(p, f) spin_lock_irqsave(usbhs_priv_to_lock(p), f) 284 #define usbhs_unlock(p, f) spin_unlock_irqrestore(usbhs_priv_to_lock(p), f) 285 286 /* 287 * sysconfig 288 */ 289 void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable); 290 void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable); 291 void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable); 292 void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode); 293 294 /* 295 * usb request 296 */ 297 void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req); 298 void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req); 299 300 /* 301 * bus 302 */ 303 void usbhs_bus_send_sof_enable(struct usbhs_priv *priv); 304 void usbhs_bus_send_reset(struct usbhs_priv *priv); 305 int usbhs_bus_get_speed(struct usbhs_priv *priv); 306 int usbhs_vbus_ctrl(struct usbhs_priv *priv, int enable); 307 308 /* 309 * frame 310 */ 311 int usbhs_frame_get_num(struct usbhs_priv *priv); 312 313 /* 314 * device config 315 */ 316 int usbhs_set_device_config(struct usbhs_priv *priv, int devnum, u16 upphub, 317 u16 hubport, u16 speed); 318 319 /* 320 * interrupt functions 321 */ 322 void usbhs_xxxsts_clear(struct usbhs_priv *priv, u16 sts_reg, u16 bit); 323 324 /* 325 * data 326 */ 327 struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev); 328 #define usbhs_get_dparam(priv, param) (priv->dparam.param) 329 #define usbhs_priv_to_pdev(priv) (priv->pdev) 330 #define usbhs_priv_to_dev(priv) (&priv->pdev->dev) 331 #define usbhs_priv_to_lock(priv) (&priv->lock) 332 333 #endif /* RENESAS_USB_DRIVER_H */ 334