432 lines
12 KiB
C
432 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Macros and prototypes for i.MX21
|
|
*
|
|
* Copyright (C) 2006 Loping Dog Embedded Systems
|
|
* Copyright (C) 2009 Martin Fuzzey
|
|
* Originally written by Jay Monkman <jtm@lopingdog.com>
|
|
* Ported to 2.6.30, debugged and enhanced by Martin Fuzzey
|
|
*/
|
|
|
|
#ifndef __LINUX_IMX21_HCD_H__
|
|
#define __LINUX_IMX21_HCD_H__
|
|
|
|
#ifdef CONFIG_DYNAMIC_DEBUG
|
|
#define DEBUG
|
|
#endif
|
|
|
|
#include <linux/platform_data/usb-mx2.h>
|
|
|
|
#define NUM_ISO_ETDS 2
|
|
#define USB_NUM_ETD 32
|
|
#define DMEM_SIZE 4096
|
|
|
|
/* Register definitions */
|
|
#define USBOTG_HWMODE 0x00
|
|
#define USBOTG_HWMODE_ANASDBEN (1 << 14)
|
|
#define USBOTG_HWMODE_OTGXCVR_SHIFT 6
|
|
#define USBOTG_HWMODE_OTGXCVR_MASK (3 << 6)
|
|
#define USBOTG_HWMODE_OTGXCVR_TD_RD (0 << 6)
|
|
#define USBOTG_HWMODE_OTGXCVR_TS_RD (2 << 6)
|
|
#define USBOTG_HWMODE_OTGXCVR_TD_RS (1 << 6)
|
|
#define USBOTG_HWMODE_OTGXCVR_TS_RS (3 << 6)
|
|
#define USBOTG_HWMODE_HOSTXCVR_SHIFT 4
|
|
#define USBOTG_HWMODE_HOSTXCVR_MASK (3 << 4)
|
|
#define USBOTG_HWMODE_HOSTXCVR_TD_RD (0 << 4)
|
|
#define USBOTG_HWMODE_HOSTXCVR_TS_RD (2 << 4)
|
|
#define USBOTG_HWMODE_HOSTXCVR_TD_RS (1 << 4)
|
|
#define USBOTG_HWMODE_HOSTXCVR_TS_RS (3 << 4)
|
|
#define USBOTG_HWMODE_CRECFG_MASK (3 << 0)
|
|
#define USBOTG_HWMODE_CRECFG_HOST (1 << 0)
|
|
#define USBOTG_HWMODE_CRECFG_FUNC (2 << 0)
|
|
#define USBOTG_HWMODE_CRECFG_HNP (3 << 0)
|
|
|
|
#define USBOTG_CINT_STAT 0x04
|
|
#define USBOTG_CINT_STEN 0x08
|
|
#define USBOTG_ASHNPINT (1 << 5)
|
|
#define USBOTG_ASFCINT (1 << 4)
|
|
#define USBOTG_ASHCINT (1 << 3)
|
|
#define USBOTG_SHNPINT (1 << 2)
|
|
#define USBOTG_FCINT (1 << 1)
|
|
#define USBOTG_HCINT (1 << 0)
|
|
|
|
#define USBOTG_CLK_CTRL 0x0c
|
|
#define USBOTG_CLK_CTRL_FUNC (1 << 2)
|
|
#define USBOTG_CLK_CTRL_HST (1 << 1)
|
|
#define USBOTG_CLK_CTRL_MAIN (1 << 0)
|
|
|
|
#define USBOTG_RST_CTRL 0x10
|
|
#define USBOTG_RST_RSTI2C (1 << 15)
|
|
#define USBOTG_RST_RSTCTRL (1 << 5)
|
|
#define USBOTG_RST_RSTFC (1 << 4)
|
|
#define USBOTG_RST_RSTFSKE (1 << 3)
|
|
#define USBOTG_RST_RSTRH (1 << 2)
|
|
#define USBOTG_RST_RSTHSIE (1 << 1)
|
|
#define USBOTG_RST_RSTHC (1 << 0)
|
|
|
|
#define USBOTG_FRM_INTVL 0x14
|
|
#define USBOTG_FRM_REMAIN 0x18
|
|
#define USBOTG_HNP_CSR 0x1c
|
|
#define USBOTG_HNP_ISR 0x2c
|
|
#define USBOTG_HNP_IEN 0x30
|
|
|
|
#define USBOTG_I2C_TXCVR_REG(x) (0x100 + (x))
|
|
#define USBOTG_I2C_XCVR_DEVAD 0x118
|
|
#define USBOTG_I2C_SEQ_OP_REG 0x119
|
|
#define USBOTG_I2C_SEQ_RD_STARTAD 0x11a
|
|
#define USBOTG_I2C_OP_CTRL_REG 0x11b
|
|
#define USBOTG_I2C_SCLK_TO_SCK_HPER 0x11e
|
|
#define USBOTG_I2C_MASTER_INT_REG 0x11f
|
|
|
|
#define USBH_HOST_CTRL 0x80
|
|
#define USBH_HOST_CTRL_HCRESET (1 << 31)
|
|
#define USBH_HOST_CTRL_SCHDOVR(x) ((x) << 16)
|
|
#define USBH_HOST_CTRL_RMTWUEN (1 << 4)
|
|
#define USBH_HOST_CTRL_HCUSBSTE_RESET (0 << 2)
|
|
#define USBH_HOST_CTRL_HCUSBSTE_RESUME (1 << 2)
|
|
#define USBH_HOST_CTRL_HCUSBSTE_OPERATIONAL (2 << 2)
|
|
#define USBH_HOST_CTRL_HCUSBSTE_SUSPEND (3 << 2)
|
|
#define USBH_HOST_CTRL_CTLBLKSR_1 (0 << 0)
|
|
#define USBH_HOST_CTRL_CTLBLKSR_2 (1 << 0)
|
|
#define USBH_HOST_CTRL_CTLBLKSR_3 (2 << 0)
|
|
#define USBH_HOST_CTRL_CTLBLKSR_4 (3 << 0)
|
|
|
|
#define USBH_SYSISR 0x88
|
|
#define USBH_SYSISR_PSCINT (1 << 6)
|
|
#define USBH_SYSISR_FMOFINT (1 << 5)
|
|
#define USBH_SYSISR_HERRINT (1 << 4)
|
|
#define USBH_SYSISR_RESDETINT (1 << 3)
|
|
#define USBH_SYSISR_SOFINT (1 << 2)
|
|
#define USBH_SYSISR_DONEINT (1 << 1)
|
|
#define USBH_SYSISR_SORINT (1 << 0)
|
|
|
|
#define USBH_SYSIEN 0x8c
|
|
#define USBH_SYSIEN_PSCINT (1 << 6)
|
|
#define USBH_SYSIEN_FMOFINT (1 << 5)
|
|
#define USBH_SYSIEN_HERRINT (1 << 4)
|
|
#define USBH_SYSIEN_RESDETINT (1 << 3)
|
|
#define USBH_SYSIEN_SOFINT (1 << 2)
|
|
#define USBH_SYSIEN_DONEINT (1 << 1)
|
|
#define USBH_SYSIEN_SORINT (1 << 0)
|
|
|
|
#define USBH_XBUFSTAT 0x98
|
|
#define USBH_YBUFSTAT 0x9c
|
|
#define USBH_XYINTEN 0xa0
|
|
#define USBH_XFILLSTAT 0xa8
|
|
#define USBH_YFILLSTAT 0xac
|
|
#define USBH_ETDENSET 0xc0
|
|
#define USBH_ETDENCLR 0xc4
|
|
#define USBH_IMMEDINT 0xcc
|
|
#define USBH_ETDDONESTAT 0xd0
|
|
#define USBH_ETDDONEEN 0xd4
|
|
#define USBH_FRMNUB 0xe0
|
|
#define USBH_LSTHRESH 0xe4
|
|
|
|
#define USBH_ROOTHUBA 0xe8
|
|
#define USBH_ROOTHUBA_PWRTOGOOD_MASK (0xff)
|
|
#define USBH_ROOTHUBA_PWRTOGOOD_SHIFT (24)
|
|
#define USBH_ROOTHUBA_NOOVRCURP (1 << 12)
|
|
#define USBH_ROOTHUBA_OVRCURPM (1 << 11)
|
|
#define USBH_ROOTHUBA_DEVTYPE (1 << 10)
|
|
#define USBH_ROOTHUBA_PWRSWTMD (1 << 9)
|
|
#define USBH_ROOTHUBA_NOPWRSWT (1 << 8)
|
|
#define USBH_ROOTHUBA_NDNSTMPRT_MASK (0xff)
|
|
|
|
#define USBH_ROOTHUBB 0xec
|
|
#define USBH_ROOTHUBB_PRTPWRCM(x) (1 << ((x) + 16))
|
|
#define USBH_ROOTHUBB_DEVREMOVE(x) (1 << (x))
|
|
|
|
#define USBH_ROOTSTAT 0xf0
|
|
#define USBH_ROOTSTAT_CLRRMTWUE (1 << 31)
|
|
#define USBH_ROOTSTAT_OVRCURCHG (1 << 17)
|
|
#define USBH_ROOTSTAT_DEVCONWUE (1 << 15)
|
|
#define USBH_ROOTSTAT_OVRCURI (1 << 1)
|
|
#define USBH_ROOTSTAT_LOCPWRS (1 << 0)
|
|
|
|
#define USBH_PORTSTAT(x) (0xf4 + ((x) * 4))
|
|
#define USBH_PORTSTAT_PRTRSTSC (1 << 20)
|
|
#define USBH_PORTSTAT_OVRCURIC (1 << 19)
|
|
#define USBH_PORTSTAT_PRTSTATSC (1 << 18)
|
|
#define USBH_PORTSTAT_PRTENBLSC (1 << 17)
|
|
#define USBH_PORTSTAT_CONNECTSC (1 << 16)
|
|
#define USBH_PORTSTAT_LSDEVCON (1 << 9)
|
|
#define USBH_PORTSTAT_PRTPWRST (1 << 8)
|
|
#define USBH_PORTSTAT_PRTRSTST (1 << 4)
|
|
#define USBH_PORTSTAT_PRTOVRCURI (1 << 3)
|
|
#define USBH_PORTSTAT_PRTSUSPST (1 << 2)
|
|
#define USBH_PORTSTAT_PRTENABST (1 << 1)
|
|
#define USBH_PORTSTAT_CURCONST (1 << 0)
|
|
|
|
#define USB_DMAREV 0x800
|
|
#define USB_DMAINTSTAT 0x804
|
|
#define USB_DMAINTSTAT_EPERR (1 << 1)
|
|
#define USB_DMAINTSTAT_ETDERR (1 << 0)
|
|
|
|
#define USB_DMAINTEN 0x808
|
|
#define USB_DMAINTEN_EPERRINTEN (1 << 1)
|
|
#define USB_DMAINTEN_ETDERRINTEN (1 << 0)
|
|
|
|
#define USB_ETDDMAERSTAT 0x80c
|
|
#define USB_EPDMAERSTAT 0x810
|
|
#define USB_ETDDMAEN 0x820
|
|
#define USB_EPDMAEN 0x824
|
|
#define USB_ETDDMAXTEN 0x828
|
|
#define USB_EPDMAXTEN 0x82c
|
|
#define USB_ETDDMAENXYT 0x830
|
|
#define USB_EPDMAENXYT 0x834
|
|
#define USB_ETDDMABST4EN 0x838
|
|
#define USB_EPDMABST4EN 0x83c
|
|
|
|
#define USB_MISCCONTROL 0x840
|
|
#define USB_MISCCONTROL_ISOPREVFRM (1 << 3)
|
|
#define USB_MISCCONTROL_SKPRTRY (1 << 2)
|
|
#define USB_MISCCONTROL_ARBMODE (1 << 1)
|
|
#define USB_MISCCONTROL_FILTCC (1 << 0)
|
|
|
|
#define USB_ETDDMACHANLCLR 0x848
|
|
#define USB_EPDMACHANLCLR 0x84c
|
|
#define USB_ETDSMSA(x) (0x900 + ((x) * 4))
|
|
#define USB_EPSMSA(x) (0x980 + ((x) * 4))
|
|
#define USB_ETDDMABUFPTR(x) (0xa00 + ((x) * 4))
|
|
#define USB_EPDMABUFPTR(x) (0xa80 + ((x) * 4))
|
|
|
|
#define USB_ETD_DWORD(x, w) (0x200 + ((x) * 16) + ((w) * 4))
|
|
#define DW0_ADDRESS 0
|
|
#define DW0_ENDPNT 7
|
|
#define DW0_DIRECT 11
|
|
#define DW0_SPEED 13
|
|
#define DW0_FORMAT 14
|
|
#define DW0_MAXPKTSIZ 16
|
|
#define DW0_HALTED 27
|
|
#define DW0_TOGCRY 28
|
|
#define DW0_SNDNAK 30
|
|
|
|
#define DW1_XBUFSRTAD 0
|
|
#define DW1_YBUFSRTAD 16
|
|
|
|
#define DW2_RTRYDELAY 0
|
|
#define DW2_POLINTERV 0
|
|
#define DW2_STARTFRM 0
|
|
#define DW2_RELPOLPOS 8
|
|
#define DW2_DIRPID 16
|
|
#define DW2_BUFROUND 18
|
|
#define DW2_DELAYINT 19
|
|
#define DW2_DATATOG 22
|
|
#define DW2_ERRORCNT 24
|
|
#define DW2_COMPCODE 28
|
|
|
|
#define DW3_TOTBYECNT 0
|
|
#define DW3_PKTLEN0 0
|
|
#define DW3_COMPCODE0 12
|
|
#define DW3_PKTLEN1 16
|
|
#define DW3_BUFSIZE 21
|
|
#define DW3_COMPCODE1 28
|
|
|
|
#define USBCTRL 0x600
|
|
#define USBCTRL_I2C_WU_INT_STAT (1 << 27)
|
|
#define USBCTRL_OTG_WU_INT_STAT (1 << 26)
|
|
#define USBCTRL_HOST_WU_INT_STAT (1 << 25)
|
|
#define USBCTRL_FNT_WU_INT_STAT (1 << 24)
|
|
#define USBCTRL_I2C_WU_INT_EN (1 << 19)
|
|
#define USBCTRL_OTG_WU_INT_EN (1 << 18)
|
|
#define USBCTRL_HOST_WU_INT_EN (1 << 17)
|
|
#define USBCTRL_FNT_WU_INT_EN (1 << 16)
|
|
#define USBCTRL_OTC_RCV_RXDP (1 << 13)
|
|
#define USBCTRL_HOST1_BYP_TLL (1 << 12)
|
|
#define USBCTRL_OTG_BYP_VAL(x) ((x) << 10)
|
|
#define USBCTRL_HOST1_BYP_VAL(x) ((x) << 8)
|
|
#define USBCTRL_OTG_PWR_MASK (1 << 6)
|
|
#define USBCTRL_HOST1_PWR_MASK (1 << 5)
|
|
#define USBCTRL_HOST2_PWR_MASK (1 << 4)
|
|
#define USBCTRL_USB_BYP (1 << 2)
|
|
#define USBCTRL_HOST1_TXEN_OE (1 << 1)
|
|
|
|
#define USBOTG_DMEM 0x1000
|
|
|
|
/* Values in TD blocks */
|
|
#define TD_DIR_SETUP 0
|
|
#define TD_DIR_OUT 1
|
|
#define TD_DIR_IN 2
|
|
#define TD_FORMAT_CONTROL 0
|
|
#define TD_FORMAT_ISO 1
|
|
#define TD_FORMAT_BULK 2
|
|
#define TD_FORMAT_INT 3
|
|
#define TD_TOGGLE_CARRY 0
|
|
#define TD_TOGGLE_DATA0 2
|
|
#define TD_TOGGLE_DATA1 3
|
|
|
|
/* control transfer states */
|
|
#define US_CTRL_SETUP 2
|
|
#define US_CTRL_DATA 1
|
|
#define US_CTRL_ACK 0
|
|
|
|
/* bulk transfer main state and 0-length packet */
|
|
#define US_BULK 1
|
|
#define US_BULK0 0
|
|
|
|
/*ETD format description*/
|
|
#define IMX_FMT_CTRL 0x0
|
|
#define IMX_FMT_ISO 0x1
|
|
#define IMX_FMT_BULK 0x2
|
|
#define IMX_FMT_INT 0x3
|
|
|
|
static char fmt_urb_to_etd[4] = {
|
|
/*PIPE_ISOCHRONOUS*/ IMX_FMT_ISO,
|
|
/*PIPE_INTERRUPT*/ IMX_FMT_INT,
|
|
/*PIPE_CONTROL*/ IMX_FMT_CTRL,
|
|
/*PIPE_BULK*/ IMX_FMT_BULK
|
|
};
|
|
|
|
/* condition (error) CC codes and mapping (OHCI like) */
|
|
|
|
#define TD_CC_NOERROR 0x00
|
|
#define TD_CC_CRC 0x01
|
|
#define TD_CC_BITSTUFFING 0x02
|
|
#define TD_CC_DATATOGGLEM 0x03
|
|
#define TD_CC_STALL 0x04
|
|
#define TD_DEVNOTRESP 0x05
|
|
#define TD_PIDCHECKFAIL 0x06
|
|
/*#define TD_UNEXPECTEDPID 0x07 - reserved, not active on MX2*/
|
|
#define TD_DATAOVERRUN 0x08
|
|
#define TD_DATAUNDERRUN 0x09
|
|
#define TD_BUFFEROVERRUN 0x0C
|
|
#define TD_BUFFERUNDERRUN 0x0D
|
|
#define TD_SCHEDULEOVERRUN 0x0E
|
|
#define TD_NOTACCESSED 0x0F
|
|
|
|
static const int cc_to_error[16] = {
|
|
/* No Error */ 0,
|
|
/* CRC Error */ -EILSEQ,
|
|
/* Bit Stuff */ -EPROTO,
|
|
/* Data Togg */ -EILSEQ,
|
|
/* Stall */ -EPIPE,
|
|
/* DevNotResp */ -ETIMEDOUT,
|
|
/* PIDCheck */ -EPROTO,
|
|
/* UnExpPID */ -EPROTO,
|
|
/* DataOver */ -EOVERFLOW,
|
|
/* DataUnder */ -EREMOTEIO,
|
|
/* (for hw) */ -EIO,
|
|
/* (for hw) */ -EIO,
|
|
/* BufferOver */ -ECOMM,
|
|
/* BuffUnder */ -ENOSR,
|
|
/* (for HCD) */ -ENOSPC,
|
|
/* (for HCD) */ -EALREADY
|
|
};
|
|
|
|
/* HCD data associated with a usb core URB */
|
|
struct urb_priv {
|
|
struct urb *urb;
|
|
struct usb_host_endpoint *ep;
|
|
int active;
|
|
int state;
|
|
struct td *isoc_td;
|
|
int isoc_remaining;
|
|
int isoc_status;
|
|
};
|
|
|
|
/* HCD data associated with a usb core endpoint */
|
|
struct ep_priv {
|
|
struct usb_host_endpoint *ep;
|
|
struct list_head td_list;
|
|
struct list_head queue;
|
|
int etd[NUM_ISO_ETDS];
|
|
int waiting_etd;
|
|
};
|
|
|
|
/* isoc packet */
|
|
struct td {
|
|
struct list_head list;
|
|
struct urb *urb;
|
|
struct usb_host_endpoint *ep;
|
|
dma_addr_t dma_handle;
|
|
void *cpu_buffer;
|
|
int len;
|
|
int frame;
|
|
int isoc_index;
|
|
};
|
|
|
|
/* HCD data associated with a hardware ETD */
|
|
struct etd_priv {
|
|
struct usb_host_endpoint *ep;
|
|
struct urb *urb;
|
|
struct td *td;
|
|
struct list_head queue;
|
|
dma_addr_t dma_handle;
|
|
void *cpu_buffer;
|
|
void *bounce_buffer;
|
|
int alloc;
|
|
int len;
|
|
int dmem_size;
|
|
int dmem_offset;
|
|
int active_count;
|
|
#ifdef DEBUG
|
|
int activated_frame;
|
|
int disactivated_frame;
|
|
int last_int_frame;
|
|
int last_req_frame;
|
|
u32 submitted_dwords[4];
|
|
#endif
|
|
};
|
|
|
|
/* Hardware data memory info */
|
|
struct imx21_dmem_area {
|
|
struct usb_host_endpoint *ep;
|
|
unsigned int offset;
|
|
unsigned int size;
|
|
struct list_head list;
|
|
};
|
|
|
|
#ifdef DEBUG
|
|
struct debug_usage_stats {
|
|
unsigned int value;
|
|
unsigned int maximum;
|
|
};
|
|
|
|
struct debug_stats {
|
|
unsigned long submitted;
|
|
unsigned long completed_ok;
|
|
unsigned long completed_failed;
|
|
unsigned long unlinked;
|
|
unsigned long queue_etd;
|
|
unsigned long queue_dmem;
|
|
};
|
|
|
|
struct debug_isoc_trace {
|
|
int schedule_frame;
|
|
int submit_frame;
|
|
int request_len;
|
|
int done_frame;
|
|
int done_len;
|
|
int cc;
|
|
struct td *td;
|
|
};
|
|
#endif
|
|
|
|
/* HCD data structure */
|
|
struct imx21 {
|
|
spinlock_t lock;
|
|
struct device *dev;
|
|
struct usb_hcd *hcd;
|
|
struct mx21_usbh_platform_data *pdata;
|
|
struct list_head dmem_list;
|
|
struct list_head queue_for_etd; /* eps queued due to etd shortage */
|
|
struct list_head queue_for_dmem; /* etds queued due to dmem shortage */
|
|
struct etd_priv etd[USB_NUM_ETD];
|
|
struct clk *clk;
|
|
void __iomem *regs;
|
|
#ifdef DEBUG
|
|
struct dentry *debug_root;
|
|
struct debug_stats nonisoc_stats;
|
|
struct debug_stats isoc_stats;
|
|
struct debug_usage_stats etd_usage;
|
|
struct debug_usage_stats dmem_usage;
|
|
struct debug_isoc_trace isoc_trace[20];
|
|
struct debug_isoc_trace isoc_trace_failed[20];
|
|
unsigned long debug_unblocks;
|
|
int isoc_trace_index;
|
|
int isoc_trace_index_failed;
|
|
#endif
|
|
};
|
|
|
|
#endif
|