347 lines
10 KiB
C
347 lines
10 KiB
C
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/* SPDX-License-Identifier: GPL-1.0+ */
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/*
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* Renesas USB driver
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*
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* Copyright (C) 2011 Renesas Solutions Corp.
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* Copyright (C) 2019 Renesas Electronics Corporation
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*/
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#ifndef RENESAS_USB_DRIVER_H
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#define RENESAS_USB_DRIVER_H
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#include <linux/clk.h>
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#include <linux/extcon.h>
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#include <linux/platform_device.h>
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#include <linux/reset.h>
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#include <linux/usb/renesas_usbhs.h>
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struct usbhs_priv;
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#include "mod.h"
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#include "pipe.h"
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/*
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*
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* register define
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*
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*/
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#define SYSCFG 0x0000
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#define BUSWAIT 0x0002
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#define DVSTCTR 0x0008
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#define TESTMODE 0x000C
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#define CFIFO 0x0014
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#define CFIFOSEL 0x0020
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#define CFIFOCTR 0x0022
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#define D0FIFO 0x0100
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#define D0FIFOSEL 0x0028
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#define D0FIFOCTR 0x002A
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#define D1FIFO 0x0120
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#define D1FIFOSEL 0x002C
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#define D1FIFOCTR 0x002E
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#define INTENB0 0x0030
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#define INTENB1 0x0032
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#define BRDYENB 0x0036
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#define NRDYENB 0x0038
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#define BEMPENB 0x003A
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#define INTSTS0 0x0040
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#define INTSTS1 0x0042
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#define BRDYSTS 0x0046
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#define NRDYSTS 0x0048
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#define BEMPSTS 0x004A
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#define FRMNUM 0x004C
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#define USBREQ 0x0054 /* USB request type register */
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#define USBVAL 0x0056 /* USB request value register */
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#define USBINDX 0x0058 /* USB request index register */
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#define USBLENG 0x005A /* USB request length register */
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#define DCPCFG 0x005C
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#define DCPMAXP 0x005E
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#define DCPCTR 0x0060
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#define PIPESEL 0x0064
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#define PIPECFG 0x0068
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#define PIPEBUF 0x006A
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#define PIPEMAXP 0x006C
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#define PIPEPERI 0x006E
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#define PIPEnCTR 0x0070
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#define PIPE1TRE 0x0090
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#define PIPE1TRN 0x0092
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#define PIPE2TRE 0x0094
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#define PIPE2TRN 0x0096
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#define PIPE3TRE 0x0098
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#define PIPE3TRN 0x009A
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#define PIPE4TRE 0x009C
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#define PIPE4TRN 0x009E
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#define PIPE5TRE 0x00A0
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#define PIPE5TRN 0x00A2
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#define PIPEBTRE 0x00A4
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#define PIPEBTRN 0x00A6
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#define PIPECTRE 0x00A8
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#define PIPECTRN 0x00AA
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#define PIPEDTRE 0x00AC
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#define PIPEDTRN 0x00AE
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#define PIPEETRE 0x00B0
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#define PIPEETRN 0x00B2
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#define PIPEFTRE 0x00B4
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#define PIPEFTRN 0x00B6
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#define PIPE9TRE 0x00B8
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#define PIPE9TRN 0x00BA
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#define PIPEATRE 0x00BC
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#define PIPEATRN 0x00BE
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#define DEVADD0 0x00D0 /* Device address n configuration */
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#define DEVADD1 0x00D2
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#define DEVADD2 0x00D4
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#define DEVADD3 0x00D6
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#define DEVADD4 0x00D8
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#define DEVADD5 0x00DA
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#define DEVADD6 0x00DC
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#define DEVADD7 0x00DE
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#define DEVADD8 0x00E0
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#define DEVADD9 0x00E2
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#define DEVADDA 0x00E4
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#define D2FIFOSEL 0x00F0 /* for R-Car Gen2 */
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#define D2FIFOCTR 0x00F2 /* for R-Car Gen2 */
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#define D3FIFOSEL 0x00F4 /* for R-Car Gen2 */
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#define D3FIFOCTR 0x00F6 /* for R-Car Gen2 */
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#define SUSPMODE 0x0102 /* for RZ/A */
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/* SYSCFG */
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#define SCKE (1 << 10) /* USB Module Clock Enable */
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#define CNEN (1 << 8) /* Single-ended receiver operation Enable */
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#define HSE (1 << 7) /* High-Speed Operation Enable */
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#define DCFM (1 << 6) /* Controller Function Select */
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#define DRPD (1 << 5) /* D+ Line/D- Line Resistance Control */
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#define DPRPU (1 << 4) /* D+ Line Resistance Control */
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#define USBE (1 << 0) /* USB Module Operation Enable */
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#define UCKSEL (1 << 2) /* Clock Select for RZ/A1 */
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#define UPLLE (1 << 1) /* USB PLL Enable for RZ/A1 */
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/* DVSTCTR */
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#define EXTLP (1 << 10) /* Controls the EXTLP pin output state */
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#define PWEN (1 << 9) /* Controls the PWEN pin output state */
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#define USBRST (1 << 6) /* Bus Reset Output */
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#define UACT (1 << 4) /* USB Bus Enable */
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#define RHST (0x7) /* Reset Handshake */
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#define RHST_LOW_SPEED 1 /* Low-speed connection */
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#define RHST_FULL_SPEED 2 /* Full-speed connection */
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#define RHST_HIGH_SPEED 3 /* High-speed connection */
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/* CFIFOSEL */
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#define DREQE (1 << 12) /* DMA Transfer Request Enable */
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#define MBW_32 (0x2 << 10) /* CFIFO Port Access Bit Width */
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/* CFIFOCTR */
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#define BVAL (1 << 15) /* Buffer Memory Enable Flag */
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#define BCLR (1 << 14) /* CPU buffer clear */
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#define FRDY (1 << 13) /* FIFO Port Ready */
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#define DTLN_MASK (0x0FFF) /* Receive Data Length */
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/* INTENB0 */
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#define VBSE (1 << 15) /* Enable IRQ VBUS_0 and VBUSIN_0 */
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#define RSME (1 << 14) /* Enable IRQ Resume */
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#define SOFE (1 << 13) /* Enable IRQ Frame Number Update */
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#define DVSE (1 << 12) /* Enable IRQ Device State Transition */
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#define CTRE (1 << 11) /* Enable IRQ Control Stage Transition */
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#define BEMPE (1 << 10) /* Enable IRQ Buffer Empty */
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#define NRDYE (1 << 9) /* Enable IRQ Buffer Not Ready Response */
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#define BRDYE (1 << 8) /* Enable IRQ Buffer Ready */
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/* INTENB1 */
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#define BCHGE (1 << 14) /* USB Bus Change Interrupt Enable */
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#define DTCHE (1 << 12) /* Disconnection Detect Interrupt Enable */
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#define ATTCHE (1 << 11) /* Connection Detect Interrupt Enable */
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#define EOFERRE (1 << 6) /* EOF Error Detect Interrupt Enable */
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#define SIGNE (1 << 5) /* Setup Transaction Error Interrupt Enable */
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#define SACKE (1 << 4) /* Setup Transaction ACK Interrupt Enable */
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/* INTSTS0 */
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#define VBINT (1 << 15) /* VBUS0_0 and VBUS1_0 Interrupt Status */
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#define DVST (1 << 12) /* Device State Transition Interrupt Status */
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#define CTRT (1 << 11) /* Control Stage Interrupt Status */
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#define BEMP (1 << 10) /* Buffer Empty Interrupt Status */
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#define BRDY (1 << 8) /* Buffer Ready Interrupt Status */
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#define VBSTS (1 << 7) /* VBUS_0 and VBUSIN_0 Input Status */
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#define VALID (1 << 3) /* USB Request Receive */
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#define DVSQ_MASK (0x7 << 4) /* Device State */
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#define POWER_STATE (0 << 4)
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#define DEFAULT_STATE (1 << 4)
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#define ADDRESS_STATE (2 << 4)
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#define CONFIGURATION_STATE (3 << 4)
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#define SUSPENDED_STATE (4 << 4)
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#define CTSQ_MASK (0x7) /* Control Transfer Stage */
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#define IDLE_SETUP_STAGE 0 /* Idle stage or setup stage */
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#define READ_DATA_STAGE 1 /* Control read data stage */
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#define READ_STATUS_STAGE 2 /* Control read status stage */
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#define WRITE_DATA_STAGE 3 /* Control write data stage */
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#define WRITE_STATUS_STAGE 4 /* Control write status stage */
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#define NODATA_STATUS_STAGE 5 /* Control write NoData status stage */
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#define SEQUENCE_ERROR 6 /* Control transfer sequence error */
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/* INTSTS1 */
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#define OVRCR (1 << 15) /* OVRCR Interrupt Status */
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#define BCHG (1 << 14) /* USB Bus Change Interrupt Status */
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#define DTCH (1 << 12) /* USB Disconnection Detect Interrupt Status */
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#define ATTCH (1 << 11) /* ATTCH Interrupt Status */
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#define EOFERR (1 << 6) /* EOF Error Detect Interrupt Status */
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#define SIGN (1 << 5) /* Setup Transaction Error Interrupt Status */
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#define SACK (1 << 4) /* Setup Transaction ACK Response Interrupt Status */
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/* PIPECFG */
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/* DCPCFG */
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#define TYPE_NONE (0 << 14) /* Transfer Type */
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#define TYPE_BULK (1 << 14)
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#define TYPE_INT (2 << 14)
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#define TYPE_ISO (3 << 14)
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#define BFRE (1 << 10) /* BRDY Interrupt Operation Spec. */
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#define DBLB (1 << 9) /* Double Buffer Mode */
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#define SHTNAK (1 << 7) /* Pipe Disable in Transfer End */
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#define DIR_OUT (1 << 4) /* Transfer Direction */
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/* PIPEMAXP */
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/* DCPMAXP */
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#define DEVSEL_MASK (0xF << 12) /* Device Select */
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#define DCP_MAXP_MASK (0x7F)
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#define PIPE_MAXP_MASK (0x7FF)
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/* PIPEBUF */
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#define BUFSIZE_SHIFT 10
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#define BUFSIZE_MASK (0x1F << BUFSIZE_SHIFT)
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#define BUFNMB_MASK (0xFF)
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/* PIPEnCTR */
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/* DCPCTR */
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#define BSTS (1 << 15) /* Buffer Status */
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#define SUREQ (1 << 14) /* Sending SETUP Token */
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#define INBUFM (1 << 14) /* (PIPEnCTR) Transfer Buffer Monitor */
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#define CSSTS (1 << 12) /* CSSTS Status */
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#define ACLRM (1 << 9) /* Buffer Auto-Clear Mode */
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#define SQCLR (1 << 8) /* Toggle Bit Clear */
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#define SQSET (1 << 7) /* Toggle Bit Set */
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#define SQMON (1 << 6) /* Toggle Bit Check */
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#define PBUSY (1 << 5) /* Pipe Busy */
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#define PID_MASK (0x3) /* Response PID */
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#define PID_NAK 0
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#define PID_BUF 1
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#define PID_STALL10 2
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#define PID_STALL11 3
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#define CCPL (1 << 2) /* Control Transfer End Enable */
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/* PIPEnTRE */
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#define TRENB (1 << 9) /* Transaction Counter Enable */
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#define TRCLR (1 << 8) /* Transaction Counter Clear */
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/* FRMNUM */
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#define FRNM_MASK (0x7FF)
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/* DEVADDn */
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#define UPPHUB(x) (((x) & 0xF) << 11) /* HUB Register */
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#define HUBPORT(x) (((x) & 0x7) << 8) /* HUB Port for Target Device */
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#define USBSPD(x) (((x) & 0x3) << 6) /* Device Transfer Rate */
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#define USBSPD_SPEED_LOW 0x1
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#define USBSPD_SPEED_FULL 0x2
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#define USBSPD_SPEED_HIGH 0x3
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/* SUSPMODE */
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#define SUSPM (1 << 14) /* SuspendM Control */
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/*
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* struct
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*/
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struct usbhs_priv {
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void __iomem *base;
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unsigned int irq;
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const struct renesas_usbhs_platform_callback *pfunc;
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struct renesas_usbhs_driver_param dparam;
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struct delayed_work notify_hotplug_work;
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struct platform_device *pdev;
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struct extcon_dev *edev;
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spinlock_t lock;
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/*
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* module control
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*/
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struct usbhs_mod_info mod_info;
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/*
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* pipe control
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*/
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struct usbhs_pipe_info pipe_info;
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/*
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* fifo control
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*/
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struct usbhs_fifo_info fifo_info;
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struct phy *phy;
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struct reset_control *rsts;
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struct clk *clks[2];
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};
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/*
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* common
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*/
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u16 usbhs_read(struct usbhs_priv *priv, u32 reg);
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void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data);
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void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data);
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#define usbhs_lock(p, f) spin_lock_irqsave(usbhs_priv_to_lock(p), f)
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#define usbhs_unlock(p, f) spin_unlock_irqrestore(usbhs_priv_to_lock(p), f)
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int usbhs_get_id_as_gadget(struct platform_device *pdev);
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/*
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* sysconfig
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*/
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void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable);
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void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable);
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void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable);
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void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode);
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/*
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* usb request
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*/
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void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
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void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
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/*
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* bus
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*/
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void usbhs_bus_send_sof_enable(struct usbhs_priv *priv);
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void usbhs_bus_send_reset(struct usbhs_priv *priv);
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int usbhs_bus_get_speed(struct usbhs_priv *priv);
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int usbhs_vbus_ctrl(struct usbhs_priv *priv, int enable);
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int usbhsc_schedule_notify_hotplug(struct platform_device *pdev);
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/*
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* frame
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*/
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int usbhs_frame_get_num(struct usbhs_priv *priv);
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/*
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* device config
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*/
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int usbhs_set_device_config(struct usbhs_priv *priv, int devnum, u16 upphub,
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u16 hubport, u16 speed);
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/*
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* interrupt functions
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*/
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void usbhs_xxxsts_clear(struct usbhs_priv *priv, u16 sts_reg, u16 bit);
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/*
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* data
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*/
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struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev);
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#define usbhs_get_dparam(priv, param) (priv->dparam.param)
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#define usbhs_priv_to_pdev(priv) (priv->pdev)
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#define usbhs_priv_to_dev(priv) (&priv->pdev->dev)
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#define usbhs_priv_to_lock(priv) (&priv->lock)
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#endif /* RENESAS_USB_DRIVER_H */
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