cregit-Linux how code gets into the kernel

Release 4.7 drivers/usb/renesas_usbhs/common.h

/*
 * Renesas USB driver
 *
 * Copyright (C) 2011 Renesas Solutions Corp.
 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
#ifndef RENESAS_USB_DRIVER_H

#define RENESAS_USB_DRIVER_H

#include <linux/extcon.h>
#include <linux/platform_device.h>
#include <linux/usb/renesas_usbhs.h>

struct usbhs_priv;

#include "mod.h"
#include "pipe.h"

/*
 *
 *              register define
 *
 */

#define SYSCFG		0x0000

#define BUSWAIT		0x0002

#define DVSTCTR		0x0008

#define TESTMODE	0x000C

#define CFIFO		0x0014

#define CFIFOSEL	0x0020

#define CFIFOCTR	0x0022

#define D0FIFO		0x0100

#define D0FIFOSEL	0x0028

#define D0FIFOCTR	0x002A

#define D1FIFO		0x0120

#define D1FIFOSEL	0x002C

#define D1FIFOCTR	0x002E

#define INTENB0		0x0030

#define INTENB1		0x0032

#define BRDYENB		0x0036

#define NRDYENB		0x0038

#define BEMPENB		0x003A

#define INTSTS0		0x0040

#define INTSTS1		0x0042

#define BRDYSTS		0x0046

#define NRDYSTS		0x0048

#define BEMPSTS		0x004A

#define FRMNUM		0x004C

#define USBREQ		0x0054	
/* USB request type register */

#define USBVAL		0x0056	
/* USB request value register */

#define USBINDX		0x0058	
/* USB request index register */

#define USBLENG		0x005A	
/* USB request length register */

#define DCPCFG		0x005C

#define DCPMAXP		0x005E

#define DCPCTR		0x0060

#define PIPESEL		0x0064

#define PIPECFG		0x0068

#define PIPEBUF		0x006A

#define PIPEMAXP	0x006C

#define PIPEPERI	0x006E

#define PIPEnCTR	0x0070

#define PIPE1TRE	0x0090

#define PIPE1TRN	0x0092

#define PIPE2TRE	0x0094

#define PIPE2TRN	0x0096

#define PIPE3TRE	0x0098

#define PIPE3TRN	0x009A

#define PIPE4TRE	0x009C

#define PIPE4TRN	0x009E

#define PIPE5TRE	0x00A0

#define PIPE5TRN	0x00A2

#define PIPEBTRE	0x00A4

#define PIPEBTRN	0x00A6

#define PIPECTRE	0x00A8

#define PIPECTRN	0x00AA

#define PIPEDTRE	0x00AC

#define PIPEDTRN	0x00AE

#define PIPEETRE	0x00B0

#define PIPEETRN	0x00B2

#define PIPEFTRE	0x00B4

#define PIPEFTRN	0x00B6

#define PIPE9TRE	0x00B8

#define PIPE9TRN	0x00BA

#define PIPEATRE	0x00BC

#define PIPEATRN	0x00BE

#define DEVADD0		0x00D0 
/* Device address n configuration */

#define DEVADD1		0x00D2

#define DEVADD2		0x00D4

#define DEVADD3		0x00D6

#define DEVADD4		0x00D8

#define DEVADD5		0x00DA

#define DEVADD6		0x00DC

#define DEVADD7		0x00DE

#define DEVADD8		0x00E0

#define DEVADD9		0x00E2

#define DEVADDA		0x00E4

#define D2FIFOSEL	0x00F0	
/* for R-Car Gen2 */

#define D2FIFOCTR	0x00F2	
/* for R-Car Gen2 */

#define D3FIFOSEL	0x00F4	
/* for R-Car Gen2 */

#define D3FIFOCTR	0x00F6	
/* for R-Car Gen2 */

/* SYSCFG */

#define SCKE	(1 << 10)	
/* USB Module Clock Enable */

#define HSE	(1 << 7)	
/* High-Speed Operation Enable */

#define DCFM	(1 << 6)	
/* Controller Function Select */

#define DRPD	(1 << 5)	
/* D+ Line/D- Line Resistance Control */

#define DPRPU	(1 << 4)	
/* D+ Line Resistance Control */

#define USBE	(1 << 0)	
/* USB Module Operation Enable */

/* DVSTCTR */

#define EXTLP	(1 << 10)	
/* Controls the EXTLP pin output state */

#define PWEN	(1 << 9)	
/* Controls the PWEN pin output state */

#define USBRST	(1 << 6)	
/* Bus Reset Output */

#define UACT	(1 << 4)	
/* USB Bus Enable */

#define RHST	(0x7)		
/* Reset Handshake */

#define  RHST_LOW_SPEED  1	
/* Low-speed connection */

#define  RHST_FULL_SPEED 2	
/* Full-speed connection */

#define  RHST_HIGH_SPEED 3	
/* High-speed connection */

/* CFIFOSEL */

#define DREQE	(1 << 12)	
/* DMA Transfer Request Enable */

#define MBW_32	(0x2 << 10)	
/* CFIFO Port Access Bit Width */

/* CFIFOCTR */

#define BVAL	(1 << 15)	
/* Buffer Memory Enable Flag */

#define BCLR	(1 << 14)	
/* CPU buffer clear */

#define FRDY	(1 << 13)	
/* FIFO Port Ready */

#define DTLN_MASK (0x0FFF)	
/* Receive Data Length */

/* INTENB0 */

#define VBSE	(1 << 15)	
/* Enable IRQ VBUS_0 and VBUSIN_0 */

#define RSME	(1 << 14)	
/* Enable IRQ Resume */

#define SOFE	(1 << 13)	
/* Enable IRQ Frame Number Update */

#define DVSE	(1 << 12)	
/* Enable IRQ Device State Transition */

#define CTRE	(1 << 11)	
/* Enable IRQ Control Stage Transition */

#define BEMPE	(1 << 10)	
/* Enable IRQ Buffer Empty */

#define NRDYE	(1 << 9)	
/* Enable IRQ Buffer Not Ready Response */

#define BRDYE	(1 << 8)	
/* Enable IRQ Buffer Ready */

/* INTENB1 */

#define BCHGE	(1 << 14)	
/* USB Bus Change Interrupt Enable */

#define DTCHE	(1 << 12)	
/* Disconnection Detect Interrupt Enable */

#define ATTCHE	(1 << 11)	
/* Connection Detect Interrupt Enable */

#define EOFERRE	(1 << 6)	
/* EOF Error Detect Interrupt Enable */

#define SIGNE	(1 << 5)	
/* Setup Transaction Error Interrupt Enable */

#define SACKE	(1 << 4)	
/* Setup Transaction ACK Interrupt Enable */

/* INTSTS0 */

#define VBINT	(1 << 15)	
/* VBUS0_0 and VBUS1_0 Interrupt Status */

#define DVST	(1 << 12)	
/* Device State Transition Interrupt Status */

#define CTRT	(1 << 11)	
/* Control Stage Interrupt Status */

#define BEMP	(1 << 10)	
/* Buffer Empty Interrupt Status */

#define BRDY	(1 << 8)	
/* Buffer Ready Interrupt Status */

#define VBSTS	(1 << 7)	
/* VBUS_0 and VBUSIN_0 Input Status */

#define VALID	(1 << 3)	
/* USB Request Receive */


#define DVSQ_MASK		(0x3 << 4)	
/* Device State */

#define  POWER_STATE		(0 << 4)

#define  DEFAULT_STATE		(1 << 4)

#define  ADDRESS_STATE		(2 << 4)

#define  CONFIGURATION_STATE	(3 << 4)


#define CTSQ_MASK		(0x7)	
/* Control Transfer Stage */

#define  IDLE_SETUP_STAGE	0	
/* Idle stage or setup stage */

#define  READ_DATA_STAGE	1	
/* Control read data stage */

#define  READ_STATUS_STAGE	2	
/* Control read status stage */

#define  WRITE_DATA_STAGE	3	
/* Control write data stage */

#define  WRITE_STATUS_STAGE	4	
/* Control write status stage */

#define  NODATA_STATUS_STAGE	5	
/* Control write NoData status stage */

#define  SEQUENCE_ERROR		6	
/* Control transfer sequence error */

/* INTSTS1 */

#define OVRCR	(1 << 15) 
/* OVRCR Interrupt Status */

#define BCHG	(1 << 14) 
/* USB Bus Change Interrupt Status */

#define DTCH	(1 << 12) 
/* USB Disconnection Detect Interrupt Status */

#define ATTCH	(1 << 11) 
/* ATTCH Interrupt Status */

#define EOFERR	(1 << 6)  
/* EOF Error Detect Interrupt Status */

#define SIGN	(1 << 5)  
/* Setup Transaction Error Interrupt Status */

#define SACK	(1 << 4)  
/* Setup Transaction ACK Response Interrupt Status */

/* PIPECFG */
/* DCPCFG */

#define TYPE_NONE	(0 << 14)	
/* Transfer Type */

#define TYPE_BULK	(1 << 14)

#define TYPE_INT	(2 << 14)

#define TYPE_ISO	(3 << 14)

#define BFRE		(1 << 10)	
/* BRDY Interrupt Operation Spec. */

#define DBLB		(1 << 9)	
/* Double Buffer Mode */

#define SHTNAK		(1 << 7)	
/* Pipe Disable in Transfer End */

#define DIR_OUT		(1 << 4)	
/* Transfer Direction */

/* PIPEMAXP */
/* DCPMAXP */

#define DEVSEL_MASK	(0xF << 12)	
/* Device Select */

#define DCP_MAXP_MASK	(0x7F)

#define PIPE_MAXP_MASK	(0x7FF)

/* PIPEBUF */

#define BUFSIZE_SHIFT	10

#define BUFSIZE_MASK	(0x1F << BUFSIZE_SHIFT)

#define BUFNMB_MASK	(0xFF)

/* PIPEnCTR */
/* DCPCTR */

#define BSTS		(1 << 15)	
/* Buffer Status */

#define SUREQ		(1 << 14)	
/* Sending SETUP Token */

#define CSSTS		(1 << 12)	
/* CSSTS Status */

#define	ACLRM		(1 << 9)	
/* Buffer Auto-Clear Mode */

#define SQCLR		(1 << 8)	
/* Toggle Bit Clear */

#define SQSET		(1 << 7)	
/* Toggle Bit Set */

#define SQMON		(1 << 6)	
/* Toggle Bit Check */

#define PBUSY		(1 << 5)	
/* Pipe Busy */

#define PID_MASK	(0x3)		
/* Response PID */

#define  PID_NAK	0

#define  PID_BUF	1

#define  PID_STALL10	2

#define  PID_STALL11	3


#define CCPL		(1 << 2)	
/* Control Transfer End Enable */

/* PIPEnTRE */

#define TRENB		(1 << 9)	
/* Transaction Counter Enable */

#define TRCLR		(1 << 8)	
/* Transaction Counter Clear */

/* FRMNUM */

#define FRNM_MASK	(0x7FF)

/* DEVADDn */

#define UPPHUB(x)	(((x) & 0xF) << 11)	
/* HUB Register */

#define HUBPORT(x)	(((x) & 0x7) << 8)	
/* HUB Port for Target Device */

#define USBSPD(x)	(((x) & 0x3) << 6)	
/* Device Transfer Rate */

#define USBSPD_SPEED_LOW	0x1

#define USBSPD_SPEED_FULL	0x2

#define USBSPD_SPEED_HIGH	0x3

/*
 *              struct
 */

struct usbhs_priv {

	
void __iomem *base;
	
unsigned int irq;
	
unsigned long irqflags;

	
struct renesas_usbhs_platform_callback	pfunc;
	
struct renesas_usbhs_driver_param	dparam;

	
struct delayed_work notify_hotplug_work;
	
struct platform_device *pdev;

	
struct extcon_dev *edev;

	
spinlock_t		lock;

	
u32 flags;

	/*
         * module control
         */
	
struct usbhs_mod_info mod_info;

	/*
         * pipe control
         */
	
struct usbhs_pipe_info pipe_info;

	/*
         * fifo control
         */
	
struct usbhs_fifo_info fifo_info;

	
struct usb_phy *usb_phy;
	
struct phy *phy;
};

/*
 * common
 */
u16 usbhs_read(struct usbhs_priv *priv, u32 reg);
void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data);
void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data);


#define usbhs_lock(p, f) spin_lock_irqsave(usbhs_priv_to_lock(p), f)

#define usbhs_unlock(p, f) spin_unlock_irqrestore(usbhs_priv_to_lock(p), f)

/*
 * sysconfig
 */
void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable);
void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable);
void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable);
void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode);

/*
 * usb request
 */
void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);

/*
 * bus
 */
void usbhs_bus_send_sof_enable(struct usbhs_priv *priv);
void usbhs_bus_send_reset(struct usbhs_priv *priv);
int usbhs_bus_get_speed(struct usbhs_priv *priv);
int usbhs_vbus_ctrl(struct usbhs_priv *priv, int enable);

/*
 * frame
 */
int usbhs_frame_get_num(struct usbhs_priv *priv);

/*
 * device config
 */
int usbhs_set_device_config(struct usbhs_priv *priv, int devnum, u16 upphub,
			   u16 hubport, u16 speed);

/*
 * interrupt functions
 */
void usbhs_xxxsts_clear(struct usbhs_priv *priv, u16 sts_reg, u16 bit);

/*
 * data
 */
struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev);

#define usbhs_get_dparam(priv, param)	(priv->dparam.param)

#define usbhs_priv_to_pdev(priv)	(priv->pdev)

#define usbhs_priv_to_dev(priv)		(&priv->pdev->dev)

#define usbhs_priv_to_lock(priv)	(&priv->lock)

#endif /* RENESAS_USB_DRIVER_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
kuninori morimotokuninori morimoto111394.08%1768.00%
yoshihiro shimodayoshihiro shimoda564.73%520.00%
sergei shtylyovsergei shtylyov80.68%14.00%
ulrich hechtulrich hecht40.34%14.00%
paul bollepaul bolle20.17%14.00%
Total1183100.00%25100.00%
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