618 lines
16 KiB
C
618 lines
16 KiB
C
/*
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* amd5536.h -- header for AMD 5536 UDC high/full speed USB device controller
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*
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* Copyright (C) 2007 AMD (http://www.amd.com)
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* Author: Thomas Dahlmann
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef AMD5536UDC_H
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#define AMD5536UDC_H
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/* various constants */
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#define UDC_RDE_TIMER_SECONDS 1
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#define UDC_RDE_TIMER_DIV 10
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#define UDC_POLLSTALL_TIMER_USECONDS 500
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/* Hs AMD5536 chip rev. */
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#define UDC_HSA0_REV 1
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#define UDC_HSB1_REV 2
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/*
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* SETUP usb commands
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* needed, because some SETUP's are handled in hw, but must be passed to
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* gadget driver above
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* SET_CONFIG
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*/
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#define UDC_SETCONFIG_DWORD0 0x00000900
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#define UDC_SETCONFIG_DWORD0_VALUE_MASK 0xffff0000
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#define UDC_SETCONFIG_DWORD0_VALUE_OFS 16
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#define UDC_SETCONFIG_DWORD1 0x00000000
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/* SET_INTERFACE */
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#define UDC_SETINTF_DWORD0 0x00000b00
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#define UDC_SETINTF_DWORD0_ALT_MASK 0xffff0000
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#define UDC_SETINTF_DWORD0_ALT_OFS 16
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#define UDC_SETINTF_DWORD1 0x00000000
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#define UDC_SETINTF_DWORD1_INTF_MASK 0x0000ffff
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#define UDC_SETINTF_DWORD1_INTF_OFS 0
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/* Mass storage reset */
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#define UDC_MSCRES_DWORD0 0x0000ff21
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#define UDC_MSCRES_DWORD1 0x00000000
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/* Global CSR's -------------------------------------------------------------*/
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#define UDC_CSR_ADDR 0x500
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/* EP NE bits */
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/* EP number */
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#define UDC_CSR_NE_NUM_MASK 0x0000000f
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#define UDC_CSR_NE_NUM_OFS 0
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/* EP direction */
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#define UDC_CSR_NE_DIR_MASK 0x00000010
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#define UDC_CSR_NE_DIR_OFS 4
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/* EP type */
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#define UDC_CSR_NE_TYPE_MASK 0x00000060
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#define UDC_CSR_NE_TYPE_OFS 5
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/* EP config number */
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#define UDC_CSR_NE_CFG_MASK 0x00000780
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#define UDC_CSR_NE_CFG_OFS 7
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/* EP interface number */
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#define UDC_CSR_NE_INTF_MASK 0x00007800
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#define UDC_CSR_NE_INTF_OFS 11
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/* EP alt setting */
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#define UDC_CSR_NE_ALT_MASK 0x00078000
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#define UDC_CSR_NE_ALT_OFS 15
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/* max pkt */
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#define UDC_CSR_NE_MAX_PKT_MASK 0x3ff80000
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#define UDC_CSR_NE_MAX_PKT_OFS 19
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/* Device Config Register ---------------------------------------------------*/
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#define UDC_DEVCFG_ADDR 0x400
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#define UDC_DEVCFG_SOFTRESET 31
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#define UDC_DEVCFG_HNPSFEN 30
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#define UDC_DEVCFG_DMARST 29
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#define UDC_DEVCFG_SET_DESC 18
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#define UDC_DEVCFG_CSR_PRG 17
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#define UDC_DEVCFG_STATUS 7
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#define UDC_DEVCFG_DIR 6
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#define UDC_DEVCFG_PI 5
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#define UDC_DEVCFG_SS 4
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#define UDC_DEVCFG_SP 3
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#define UDC_DEVCFG_RWKP 2
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#define UDC_DEVCFG_SPD_MASK 0x3
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#define UDC_DEVCFG_SPD_OFS 0
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#define UDC_DEVCFG_SPD_HS 0x0
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#define UDC_DEVCFG_SPD_FS 0x1
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#define UDC_DEVCFG_SPD_LS 0x2
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/*#define UDC_DEVCFG_SPD_FS 0x3*/
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/* Device Control Register --------------------------------------------------*/
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#define UDC_DEVCTL_ADDR 0x404
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#define UDC_DEVCTL_THLEN_MASK 0xff000000
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#define UDC_DEVCTL_THLEN_OFS 24
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#define UDC_DEVCTL_BRLEN_MASK 0x00ff0000
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#define UDC_DEVCTL_BRLEN_OFS 16
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#define UDC_DEVCTL_CSR_DONE 13
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#define UDC_DEVCTL_DEVNAK 12
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#define UDC_DEVCTL_SD 10
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#define UDC_DEVCTL_MODE 9
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#define UDC_DEVCTL_BREN 8
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#define UDC_DEVCTL_THE 7
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#define UDC_DEVCTL_BF 6
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#define UDC_DEVCTL_BE 5
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#define UDC_DEVCTL_DU 4
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#define UDC_DEVCTL_TDE 3
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#define UDC_DEVCTL_RDE 2
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#define UDC_DEVCTL_RES 0
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/* Device Status Register ---------------------------------------------------*/
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#define UDC_DEVSTS_ADDR 0x408
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#define UDC_DEVSTS_TS_MASK 0xfffc0000
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#define UDC_DEVSTS_TS_OFS 18
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#define UDC_DEVSTS_SESSVLD 17
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#define UDC_DEVSTS_PHY_ERROR 16
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#define UDC_DEVSTS_RXFIFO_EMPTY 15
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#define UDC_DEVSTS_ENUM_SPEED_MASK 0x00006000
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#define UDC_DEVSTS_ENUM_SPEED_OFS 13
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#define UDC_DEVSTS_ENUM_SPEED_FULL 1
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#define UDC_DEVSTS_ENUM_SPEED_HIGH 0
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#define UDC_DEVSTS_SUSP 12
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#define UDC_DEVSTS_ALT_MASK 0x00000f00
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#define UDC_DEVSTS_ALT_OFS 8
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#define UDC_DEVSTS_INTF_MASK 0x000000f0
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#define UDC_DEVSTS_INTF_OFS 4
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#define UDC_DEVSTS_CFG_MASK 0x0000000f
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#define UDC_DEVSTS_CFG_OFS 0
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/* Device Interrupt Register ------------------------------------------------*/
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#define UDC_DEVINT_ADDR 0x40c
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#define UDC_DEVINT_SVC 7
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#define UDC_DEVINT_ENUM 6
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#define UDC_DEVINT_SOF 5
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#define UDC_DEVINT_US 4
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#define UDC_DEVINT_UR 3
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#define UDC_DEVINT_ES 2
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#define UDC_DEVINT_SI 1
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#define UDC_DEVINT_SC 0
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/* Device Interrupt Mask Register -------------------------------------------*/
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#define UDC_DEVINT_MSK_ADDR 0x410
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#define UDC_DEVINT_MSK 0x7f
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/* Endpoint Interrupt Register ----------------------------------------------*/
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#define UDC_EPINT_ADDR 0x414
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#define UDC_EPINT_OUT_MASK 0xffff0000
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#define UDC_EPINT_OUT_OFS 16
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#define UDC_EPINT_IN_MASK 0x0000ffff
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#define UDC_EPINT_IN_OFS 0
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#define UDC_EPINT_IN_EP0 0
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#define UDC_EPINT_IN_EP1 1
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#define UDC_EPINT_IN_EP2 2
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#define UDC_EPINT_IN_EP3 3
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#define UDC_EPINT_OUT_EP0 16
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#define UDC_EPINT_OUT_EP1 17
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#define UDC_EPINT_OUT_EP2 18
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#define UDC_EPINT_OUT_EP3 19
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#define UDC_EPINT_EP0_ENABLE_MSK 0x001e001e
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/* Endpoint Interrupt Mask Register -----------------------------------------*/
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#define UDC_EPINT_MSK_ADDR 0x418
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#define UDC_EPINT_OUT_MSK_MASK 0xffff0000
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#define UDC_EPINT_OUT_MSK_OFS 16
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#define UDC_EPINT_IN_MSK_MASK 0x0000ffff
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#define UDC_EPINT_IN_MSK_OFS 0
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#define UDC_EPINT_MSK_DISABLE_ALL 0xffffffff
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/* mask non-EP0 endpoints */
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#define UDC_EPDATAINT_MSK_DISABLE 0xfffefffe
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/* mask all dev interrupts */
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#define UDC_DEV_MSK_DISABLE 0x7f
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/* Endpoint-specific CSR's --------------------------------------------------*/
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#define UDC_EPREGS_ADDR 0x0
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#define UDC_EPIN_REGS_ADDR 0x0
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#define UDC_EPOUT_REGS_ADDR 0x200
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#define UDC_EPCTL_ADDR 0x0
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#define UDC_EPCTL_RRDY 9
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#define UDC_EPCTL_CNAK 8
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#define UDC_EPCTL_SNAK 7
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#define UDC_EPCTL_NAK 6
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#define UDC_EPCTL_ET_MASK 0x00000030
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#define UDC_EPCTL_ET_OFS 4
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#define UDC_EPCTL_ET_CONTROL 0
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#define UDC_EPCTL_ET_ISO 1
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#define UDC_EPCTL_ET_BULK 2
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#define UDC_EPCTL_ET_INTERRUPT 3
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#define UDC_EPCTL_P 3
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#define UDC_EPCTL_SN 2
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#define UDC_EPCTL_F 1
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#define UDC_EPCTL_S 0
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/* Endpoint Status Registers ------------------------------------------------*/
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#define UDC_EPSTS_ADDR 0x4
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#define UDC_EPSTS_RX_PKT_SIZE_MASK 0x007ff800
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#define UDC_EPSTS_RX_PKT_SIZE_OFS 11
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#define UDC_EPSTS_TDC 10
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#define UDC_EPSTS_HE 9
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#define UDC_EPSTS_BNA 7
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#define UDC_EPSTS_IN 6
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#define UDC_EPSTS_OUT_MASK 0x00000030
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#define UDC_EPSTS_OUT_OFS 4
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#define UDC_EPSTS_OUT_DATA 1
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#define UDC_EPSTS_OUT_DATA_CLEAR 0x10
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#define UDC_EPSTS_OUT_SETUP 2
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#define UDC_EPSTS_OUT_SETUP_CLEAR 0x20
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#define UDC_EPSTS_OUT_CLEAR 0x30
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/* Endpoint Buffer Size IN/ Receive Packet Frame Number OUT Registers ------*/
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#define UDC_EPIN_BUFF_SIZE_ADDR 0x8
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#define UDC_EPOUT_FRAME_NUMBER_ADDR 0x8
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#define UDC_EPIN_BUFF_SIZE_MASK 0x0000ffff
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#define UDC_EPIN_BUFF_SIZE_OFS 0
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/* EP0in txfifo = 128 bytes*/
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#define UDC_EPIN0_BUFF_SIZE 32
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/* EP0in fullspeed txfifo = 128 bytes*/
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#define UDC_FS_EPIN0_BUFF_SIZE 32
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/* fifo size mult = fifo size / max packet */
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#define UDC_EPIN_BUFF_SIZE_MULT 2
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/* EPin data fifo size = 1024 bytes DOUBLE BUFFERING */
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#define UDC_EPIN_BUFF_SIZE 256
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/* EPin small INT data fifo size = 128 bytes */
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#define UDC_EPIN_SMALLINT_BUFF_SIZE 32
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/* EPin fullspeed data fifo size = 128 bytes DOUBLE BUFFERING */
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#define UDC_FS_EPIN_BUFF_SIZE 32
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#define UDC_EPOUT_FRAME_NUMBER_MASK 0x0000ffff
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#define UDC_EPOUT_FRAME_NUMBER_OFS 0
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/* Endpoint Buffer Size OUT/Max Packet Size Registers -----------------------*/
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#define UDC_EPOUT_BUFF_SIZE_ADDR 0x0c
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#define UDC_EP_MAX_PKT_SIZE_ADDR 0x0c
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#define UDC_EPOUT_BUFF_SIZE_MASK 0xffff0000
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#define UDC_EPOUT_BUFF_SIZE_OFS 16
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#define UDC_EP_MAX_PKT_SIZE_MASK 0x0000ffff
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#define UDC_EP_MAX_PKT_SIZE_OFS 0
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/* EP0in max packet size = 64 bytes */
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#define UDC_EP0IN_MAX_PKT_SIZE 64
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/* EP0out max packet size = 64 bytes */
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#define UDC_EP0OUT_MAX_PKT_SIZE 64
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/* EP0in fullspeed max packet size = 64 bytes */
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#define UDC_FS_EP0IN_MAX_PKT_SIZE 64
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/* EP0out fullspeed max packet size = 64 bytes */
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#define UDC_FS_EP0OUT_MAX_PKT_SIZE 64
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/*
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* Endpoint dma descriptors ------------------------------------------------
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*
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* Setup data, Status dword
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*/
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#define UDC_DMA_STP_STS_CFG_MASK 0x0fff0000
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#define UDC_DMA_STP_STS_CFG_OFS 16
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#define UDC_DMA_STP_STS_CFG_ALT_MASK 0x000f0000
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#define UDC_DMA_STP_STS_CFG_ALT_OFS 16
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#define UDC_DMA_STP_STS_CFG_INTF_MASK 0x00f00000
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#define UDC_DMA_STP_STS_CFG_INTF_OFS 20
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#define UDC_DMA_STP_STS_CFG_NUM_MASK 0x0f000000
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#define UDC_DMA_STP_STS_CFG_NUM_OFS 24
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#define UDC_DMA_STP_STS_RX_MASK 0x30000000
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#define UDC_DMA_STP_STS_RX_OFS 28
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#define UDC_DMA_STP_STS_BS_MASK 0xc0000000
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#define UDC_DMA_STP_STS_BS_OFS 30
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#define UDC_DMA_STP_STS_BS_HOST_READY 0
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#define UDC_DMA_STP_STS_BS_DMA_BUSY 1
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#define UDC_DMA_STP_STS_BS_DMA_DONE 2
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#define UDC_DMA_STP_STS_BS_HOST_BUSY 3
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/* IN data, Status dword */
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#define UDC_DMA_IN_STS_TXBYTES_MASK 0x0000ffff
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#define UDC_DMA_IN_STS_TXBYTES_OFS 0
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#define UDC_DMA_IN_STS_FRAMENUM_MASK 0x07ff0000
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#define UDC_DMA_IN_STS_FRAMENUM_OFS 0
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#define UDC_DMA_IN_STS_L 27
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#define UDC_DMA_IN_STS_TX_MASK 0x30000000
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#define UDC_DMA_IN_STS_TX_OFS 28
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#define UDC_DMA_IN_STS_BS_MASK 0xc0000000
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#define UDC_DMA_IN_STS_BS_OFS 30
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#define UDC_DMA_IN_STS_BS_HOST_READY 0
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#define UDC_DMA_IN_STS_BS_DMA_BUSY 1
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#define UDC_DMA_IN_STS_BS_DMA_DONE 2
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#define UDC_DMA_IN_STS_BS_HOST_BUSY 3
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/* OUT data, Status dword */
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#define UDC_DMA_OUT_STS_RXBYTES_MASK 0x0000ffff
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#define UDC_DMA_OUT_STS_RXBYTES_OFS 0
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#define UDC_DMA_OUT_STS_FRAMENUM_MASK 0x07ff0000
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#define UDC_DMA_OUT_STS_FRAMENUM_OFS 0
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#define UDC_DMA_OUT_STS_L 27
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#define UDC_DMA_OUT_STS_RX_MASK 0x30000000
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#define UDC_DMA_OUT_STS_RX_OFS 28
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#define UDC_DMA_OUT_STS_BS_MASK 0xc0000000
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#define UDC_DMA_OUT_STS_BS_OFS 30
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#define UDC_DMA_OUT_STS_BS_HOST_READY 0
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#define UDC_DMA_OUT_STS_BS_DMA_BUSY 1
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#define UDC_DMA_OUT_STS_BS_DMA_DONE 2
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#define UDC_DMA_OUT_STS_BS_HOST_BUSY 3
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/* max ep0in packet */
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#define UDC_EP0IN_MAXPACKET 1000
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/* max dma packet */
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#define UDC_DMA_MAXPACKET 65536
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/* un-usable DMA address */
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#define DMA_DONT_USE (~(dma_addr_t) 0 )
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/* other Endpoint register addresses and values-----------------------------*/
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#define UDC_EP_SUBPTR_ADDR 0x10
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#define UDC_EP_DESPTR_ADDR 0x14
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#define UDC_EP_WRITE_CONFIRM_ADDR 0x1c
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/* EP number as layouted in AHB space */
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#define UDC_EP_NUM 32
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#define UDC_EPIN_NUM 16
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#define UDC_EPIN_NUM_USED 5
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#define UDC_EPOUT_NUM 16
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/* EP number of EP's really used = EP0 + 8 data EP's */
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#define UDC_USED_EP_NUM 9
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/* UDC CSR regs are aligned but AHB regs not - offset for OUT EP's */
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#define UDC_CSR_EP_OUT_IX_OFS 12
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#define UDC_EP0OUT_IX 16
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#define UDC_EP0IN_IX 0
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/* Rx fifo address and size = 1k -------------------------------------------*/
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#define UDC_RXFIFO_ADDR 0x800
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#define UDC_RXFIFO_SIZE 0x400
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/* Tx fifo address and size = 1.5k -----------------------------------------*/
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#define UDC_TXFIFO_ADDR 0xc00
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#define UDC_TXFIFO_SIZE 0x600
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/* default data endpoints --------------------------------------------------*/
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#define UDC_EPIN_STATUS_IX 1
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#define UDC_EPIN_IX 2
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#define UDC_EPOUT_IX 18
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/* general constants -------------------------------------------------------*/
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#define UDC_DWORD_BYTES 4
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#define UDC_BITS_PER_BYTE_SHIFT 3
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#define UDC_BYTE_MASK 0xff
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#define UDC_BITS_PER_BYTE 8
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/*---------------------------------------------------------------------------*/
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/* UDC CSR's */
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struct udc_csrs {
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/* sca - setup command address */
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u32 sca;
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/* ep ne's */
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u32 ne[UDC_USED_EP_NUM];
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} __attribute__ ((packed));
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/* AHB subsystem CSR registers */
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struct udc_regs {
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/* device configuration */
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u32 cfg;
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/* device control */
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u32 ctl;
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/* device status */
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u32 sts;
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/* device interrupt */
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u32 irqsts;
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/* device interrupt mask */
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u32 irqmsk;
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/* endpoint interrupt */
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u32 ep_irqsts;
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/* endpoint interrupt mask */
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u32 ep_irqmsk;
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} __attribute__ ((packed));
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/* endpoint specific registers */
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struct udc_ep_regs {
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/* endpoint control */
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u32 ctl;
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/* endpoint status */
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u32 sts;
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/* endpoint buffer size in/ receive packet frame number out */
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u32 bufin_framenum;
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/* endpoint buffer size out/max packet size */
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u32 bufout_maxpkt;
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/* endpoint setup buffer pointer */
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u32 subptr;
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/* endpoint data descriptor pointer */
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u32 desptr;
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/* reserverd */
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u32 reserved;
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/* write/read confirmation */
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u32 confirm;
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} __attribute__ ((packed));
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/* control data DMA desc */
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struct udc_stp_dma {
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/* status quadlet */
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u32 status;
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/* reserved */
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u32 _reserved;
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/* first setup word */
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u32 data12;
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/* second setup word */
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u32 data34;
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} __attribute__ ((aligned (16)));
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/* normal data DMA desc */
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struct udc_data_dma {
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/* status quadlet */
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u32 status;
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/* reserved */
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u32 _reserved;
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/* buffer pointer */
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u32 bufptr;
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/* next descriptor pointer */
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u32 next;
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} __attribute__ ((aligned (16)));
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/* request packet */
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struct udc_request {
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/* embedded gadget ep */
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struct usb_request req;
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/* flags */
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unsigned dma_going : 1,
|
|
dma_done : 1;
|
|
/* phys. address */
|
|
dma_addr_t td_phys;
|
|
/* first dma desc. of chain */
|
|
struct udc_data_dma *td_data;
|
|
/* last dma desc. of chain */
|
|
struct udc_data_dma *td_data_last;
|
|
struct list_head queue;
|
|
|
|
/* chain length */
|
|
unsigned chain_len;
|
|
|
|
};
|
|
|
|
/* UDC specific endpoint parameters */
|
|
struct udc_ep {
|
|
struct usb_ep ep;
|
|
struct udc_ep_regs __iomem *regs;
|
|
u32 __iomem *txfifo;
|
|
u32 __iomem *dma;
|
|
dma_addr_t td_phys;
|
|
dma_addr_t td_stp_dma;
|
|
struct udc_stp_dma *td_stp;
|
|
struct udc_data_dma *td;
|
|
/* temp request */
|
|
struct udc_request *req;
|
|
unsigned req_used;
|
|
unsigned req_completed;
|
|
/* dummy DMA desc for BNA dummy */
|
|
struct udc_request *bna_dummy_req;
|
|
unsigned bna_occurred;
|
|
|
|
/* NAK state */
|
|
unsigned naking;
|
|
|
|
struct udc *dev;
|
|
|
|
/* queue for requests */
|
|
struct list_head queue;
|
|
unsigned halted;
|
|
unsigned cancel_transfer;
|
|
unsigned num : 5,
|
|
fifo_depth : 14,
|
|
in : 1;
|
|
};
|
|
|
|
/* device struct */
|
|
struct udc {
|
|
struct usb_gadget gadget;
|
|
spinlock_t lock; /* protects all state */
|
|
/* all endpoints */
|
|
struct udc_ep ep[UDC_EP_NUM];
|
|
struct usb_gadget_driver *driver;
|
|
/* operational flags */
|
|
unsigned active : 1,
|
|
stall_ep0in : 1,
|
|
waiting_zlp_ack_ep0in : 1,
|
|
set_cfg_not_acked : 1,
|
|
irq_registered : 1,
|
|
data_ep_enabled : 1,
|
|
data_ep_queued : 1,
|
|
mem_region : 1,
|
|
sys_suspended : 1,
|
|
connected;
|
|
|
|
u16 chiprev;
|
|
|
|
/* registers */
|
|
struct pci_dev *pdev;
|
|
struct udc_csrs __iomem *csr;
|
|
struct udc_regs __iomem *regs;
|
|
struct udc_ep_regs __iomem *ep_regs;
|
|
u32 __iomem *rxfifo;
|
|
u32 __iomem *txfifo;
|
|
|
|
/* DMA desc pools */
|
|
struct pci_pool *data_requests;
|
|
struct pci_pool *stp_requests;
|
|
|
|
/* device data */
|
|
unsigned long phys_addr;
|
|
void __iomem *virt_addr;
|
|
unsigned irq;
|
|
|
|
/* states */
|
|
u16 cur_config;
|
|
u16 cur_intf;
|
|
u16 cur_alt;
|
|
};
|
|
|
|
#define to_amd5536_udc(g) (container_of((g), struct udc, gadget))
|
|
|
|
/* setup request data */
|
|
union udc_setup_data {
|
|
u32 data[2];
|
|
struct usb_ctrlrequest request;
|
|
};
|
|
|
|
/*
|
|
*---------------------------------------------------------------------------
|
|
* SET and GET bitfields in u32 values
|
|
* via constants for mask/offset:
|
|
* <bit_field_stub_name> is the text between
|
|
* UDC_ and _MASK|_OFS of appropriate
|
|
* constant
|
|
*
|
|
* set bitfield value in u32 u32Val
|
|
*/
|
|
#define AMD_ADDBITS(u32Val, bitfield_val, bitfield_stub_name) \
|
|
(((u32Val) & (((u32) ~((u32) bitfield_stub_name##_MASK)))) \
|
|
| (((bitfield_val) << ((u32) bitfield_stub_name##_OFS)) \
|
|
& ((u32) bitfield_stub_name##_MASK)))
|
|
|
|
/*
|
|
* set bitfield value in zero-initialized u32 u32Val
|
|
* => bitfield bits in u32Val are all zero
|
|
*/
|
|
#define AMD_INIT_SETBITS(u32Val, bitfield_val, bitfield_stub_name) \
|
|
((u32Val) \
|
|
| (((bitfield_val) << ((u32) bitfield_stub_name##_OFS)) \
|
|
& ((u32) bitfield_stub_name##_MASK)))
|
|
|
|
/* get bitfield value from u32 u32Val */
|
|
#define AMD_GETBITS(u32Val, bitfield_stub_name) \
|
|
((u32Val & ((u32) bitfield_stub_name##_MASK)) \
|
|
>> ((u32) bitfield_stub_name##_OFS))
|
|
|
|
/* SET and GET bits in u32 values ------------------------------------------*/
|
|
#define AMD_BIT(bit_stub_name) (1 << bit_stub_name)
|
|
#define AMD_UNMASK_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name))
|
|
#define AMD_CLEAR_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name))
|
|
|
|
/* debug macros ------------------------------------------------------------*/
|
|
|
|
#define DBG(udc , args...) dev_dbg(&(udc)->pdev->dev, args)
|
|
|
|
#ifdef UDC_VERBOSE
|
|
#define VDBG DBG
|
|
#else
|
|
#define VDBG(udc , args...) do {} while (0)
|
|
#endif
|
|
|
|
#endif /* #ifdef AMD5536UDC_H */
|