/* SPDX-License-Identifier: GPL-2.0+ */
/* Copyright (C) 2007,2008 Freescale Semiconductor, Inc. */
#include <linux/usb/otg-fsm.h>
#include <linux/usb/otg.h>
#include <linux/ioctl.h>
/* USB Command Register Bit Masks */
#define USB_CMD_RUN_STOP (0 x1<<0 )
#define USB_CMD_CTRL_RESET (0 x1<<1 )
#define USB_CMD_PERIODIC_SCHEDULE_EN (0 x1<<4 )
#define USB_CMD_ASYNC_SCHEDULE_EN (0 x1<<5 )
#define USB_CMD_INT_AA_DOORBELL (0 x1<<6 )
#define USB_CMD_ASP (0 x3<<8 )
#define USB_CMD_ASYNC_SCH_PARK_EN (0 x1<<11 )
#define USB_CMD_SUTW (0 x1<<13 )
#define USB_CMD_ATDTW (0 x1<<14 )
#define USB_CMD_ITC (0 xFF<<16 )
/* bit 15,3,2 are frame list size */
#define USB_CMD_FRAME_SIZE_1024 (0 x0<<15 | 0 x0<<2 )
#define USB_CMD_FRAME_SIZE_512 (0 x0<<15 | 0 x1<<2 )
#define USB_CMD_FRAME_SIZE_256 (0 x0<<15 | 0 x2<<2 )
#define USB_CMD_FRAME_SIZE_128 (0 x0<<15 | 0 x3<<2 )
#define USB_CMD_FRAME_SIZE_64 (0 x1<<15 | 0 x0<<2 )
#define USB_CMD_FRAME_SIZE_32 (0 x1<<15 | 0 x1<<2 )
#define USB_CMD_FRAME_SIZE_16 (0 x1<<15 | 0 x2<<2 )
#define USB_CMD_FRAME_SIZE_8 (0 x1<<15 | 0 x3<<2 )
/* bit 9-8 are async schedule park mode count */
#define USB_CMD_ASP_00 (0 x0<<8 )
#define USB_CMD_ASP_01 (0 x1<<8 )
#define USB_CMD_ASP_10 (0 x2<<8 )
#define USB_CMD_ASP_11 (0 x3<<8 )
#define USB_CMD_ASP_BIT_POS (8 )
/* bit 23-16 are interrupt threshold control */
#define USB_CMD_ITC_NO_THRESHOLD (0 x00<<16 )
#define USB_CMD_ITC_1_MICRO_FRM (0 x01<<16 )
#define USB_CMD_ITC_2_MICRO_FRM (0 x02<<16 )
#define USB_CMD_ITC_4_MICRO_FRM (0 x04<<16 )
#define USB_CMD_ITC_8_MICRO_FRM (0 x08<<16 )
#define USB_CMD_ITC_16_MICRO_FRM (0 x10<<16 )
#define USB_CMD_ITC_32_MICRO_FRM (0 x20<<16 )
#define USB_CMD_ITC_64_MICRO_FRM (0 x40<<16 )
#define USB_CMD_ITC_BIT_POS (16 )
/* USB Status Register Bit Masks */
#define USB_STS_INT (0 x1<<0 )
#define USB_STS_ERR (0 x1<<1 )
#define USB_STS_PORT_CHANGE (0 x1<<2 )
#define USB_STS_FRM_LST_ROLL (0 x1<<3 )
#define USB_STS_SYS_ERR (0 x1<<4 )
#define USB_STS_IAA (0 x1<<5 )
#define USB_STS_RESET_RECEIVED (0 x1<<6 )
#define USB_STS_SOF (0 x1<<7 )
#define USB_STS_DCSUSPEND (0 x1<<8 )
#define USB_STS_HC_HALTED (0 x1<<12 )
#define USB_STS_RCL (0 x1<<13 )
#define USB_STS_PERIODIC_SCHEDULE (0 x1<<14 )
#define USB_STS_ASYNC_SCHEDULE (0 x1<<15 )
/* USB Interrupt Enable Register Bit Masks */
#define USB_INTR_INT_EN (0 x1<<0 )
#define USB_INTR_ERR_INT_EN (0 x1<<1 )
#define USB_INTR_PC_DETECT_EN (0 x1<<2 )
#define USB_INTR_FRM_LST_ROLL_EN (0 x1<<3 )
#define USB_INTR_SYS_ERR_EN (0 x1<<4 )
#define USB_INTR_ASYN_ADV_EN (0 x1<<5 )
#define USB_INTR_RESET_EN (0 x1<<6 )
#define USB_INTR_SOF_EN (0 x1<<7 )
#define USB_INTR_DEVICE_SUSPEND (0 x1<<8 )
/* Device Address bit masks */
#define USB_DEVICE_ADDRESS_MASK (0 x7F<<25 )
#define USB_DEVICE_ADDRESS_BIT_POS (25 )
/* PORTSC Register Bit Masks,Only one PORT in OTG mode*/
#define PORTSC_CURRENT_CONNECT_STATUS (0 x1<<0 )
#define PORTSC_CONNECT_STATUS_CHANGE (0 x1<<1 )
#define PORTSC_PORT_ENABLE (0 x1<<2 )
#define PORTSC_PORT_EN_DIS_CHANGE (0 x1<<3 )
#define PORTSC_OVER_CURRENT_ACT (0 x1<<4 )
#define PORTSC_OVER_CUURENT_CHG (0 x1<<5 )
#define PORTSC_PORT_FORCE_RESUME (0 x1<<6 )
#define PORTSC_PORT_SUSPEND (0 x1<<7 )
#define PORTSC_PORT_RESET (0 x1<<8 )
#define PORTSC_LINE_STATUS_BITS (0 x3<<10 )
#define PORTSC_PORT_POWER (0 x1<<12 )
#define PORTSC_PORT_INDICTOR_CTRL (0 x3<<14 )
#define PORTSC_PORT_TEST_CTRL (0 xF<<16 )
#define PORTSC_WAKE_ON_CONNECT_EN (0 x1<<20 )
#define PORTSC_WAKE_ON_CONNECT_DIS (0 x1<<21 )
#define PORTSC_WAKE_ON_OVER_CURRENT (0 x1<<22 )
#define PORTSC_PHY_LOW_POWER_SPD (0 x1<<23 )
#define PORTSC_PORT_FORCE_FULL_SPEED (0 x1<<24 )
#define PORTSC_PORT_SPEED_MASK (0 x3<<26 )
#define PORTSC_TRANSCEIVER_WIDTH (0 x1<<28 )
#define PORTSC_PHY_TYPE_SEL (0 x3<<30 )
/* bit 11-10 are line status */
#define PORTSC_LINE_STATUS_SE0 (0 x0<<10 )
#define PORTSC_LINE_STATUS_JSTATE (0 x1<<10 )
#define PORTSC_LINE_STATUS_KSTATE (0 x2<<10 )
#define PORTSC_LINE_STATUS_UNDEF (0 x3<<10 )
#define PORTSC_LINE_STATUS_BIT_POS (10 )
/* bit 15-14 are port indicator control */
#define PORTSC_PIC_OFF (0 x0<<14 )
#define PORTSC_PIC_AMBER (0 x1<<14 )
#define PORTSC_PIC_GREEN (0 x2<<14 )
#define PORTSC_PIC_UNDEF (0 x3<<14 )
#define PORTSC_PIC_BIT_POS (14 )
/* bit 19-16 are port test control */
#define PORTSC_PTC_DISABLE (0 x0<<16 )
#define PORTSC_PTC_JSTATE (0 x1<<16 )
#define PORTSC_PTC_KSTATE (0 x2<<16 )
#define PORTSC_PTC_SEQNAK (0 x3<<16 )
#define PORTSC_PTC_PACKET (0 x4<<16 )
#define PORTSC_PTC_FORCE_EN (0 x5<<16 )
#define PORTSC_PTC_BIT_POS (16 )
/* bit 27-26 are port speed */
#define PORTSC_PORT_SPEED_FULL (0 x0<<26 )
#define PORTSC_PORT_SPEED_LOW (0 x1<<26 )
#define PORTSC_PORT_SPEED_HIGH (0 x2<<26 )
#define PORTSC_PORT_SPEED_UNDEF (0 x3<<26 )
#define PORTSC_SPEED_BIT_POS (26 )
/* bit 28 is parallel transceiver width for UTMI interface */
#define PORTSC_PTW (0 x1<<28 )
#define PORTSC_PTW_8BIT (0 x0<<28 )
#define PORTSC_PTW_16BIT (0 x1<<28 )
/* bit 31-30 are port transceiver select */
#define PORTSC_PTS_UTMI (0 x0<<30 )
#define PORTSC_PTS_ULPI (0 x2<<30 )
#define PORTSC_PTS_FSLS_SERIAL (0 x3<<30 )
#define PORTSC_PTS_BIT_POS (30 )
#define PORTSC_W1C_BITS \
(PORTSC_CONNECT_STATUS_CHANGE | \
PORTSC_PORT_EN_DIS_CHANGE | \
PORTSC_OVER_CUURENT_CHG)
/* OTG Status Control Register Bit Masks */
#define OTGSC_CTRL_VBUS_DISCHARGE (0 x1<<0 )
#define OTGSC_CTRL_VBUS_CHARGE (0 x1<<1 )
#define OTGSC_CTRL_OTG_TERMINATION (0 x1<<3 )
#define OTGSC_CTRL_DATA_PULSING (0 x1<<4 )
#define OTGSC_CTRL_ID_PULL_EN (0 x1<<5 )
#define OTGSC_HA_DATA_PULSE (0 x1<<6 )
#define OTGSC_HA_BA (0 x1<<7 )
#define OTGSC_STS_USB_ID (0 x1<<8 )
#define OTGSC_STS_A_VBUS_VALID (0 x1<<9 )
#define OTGSC_STS_A_SESSION_VALID (0 x1<<10 )
#define OTGSC_STS_B_SESSION_VALID (0 x1<<11 )
#define OTGSC_STS_B_SESSION_END (0 x1<<12 )
#define OTGSC_STS_1MS_TOGGLE (0 x1<<13 )
#define OTGSC_STS_DATA_PULSING (0 x1<<14 )
#define OTGSC_INTSTS_USB_ID (0 x1<<16 )
#define OTGSC_INTSTS_A_VBUS_VALID (0 x1<<17 )
#define OTGSC_INTSTS_A_SESSION_VALID (0 x1<<18 )
#define OTGSC_INTSTS_B_SESSION_VALID (0 x1<<19 )
#define OTGSC_INTSTS_B_SESSION_END (0 x1<<20 )
#define OTGSC_INTSTS_1MS (0 x1<<21 )
#define OTGSC_INTSTS_DATA_PULSING (0 x1<<22 )
#define OTGSC_INTR_USB_ID_EN (0 x1<<24 )
#define OTGSC_INTR_A_VBUS_VALID_EN (0 x1<<25 )
#define OTGSC_INTR_A_SESSION_VALID_EN (0 x1<<26 )
#define OTGSC_INTR_B_SESSION_VALID_EN (0 x1<<27 )
#define OTGSC_INTR_B_SESSION_END_EN (0 x1<<28 )
#define OTGSC_INTR_1MS_TIMER_EN (0 x1<<29 )
#define OTGSC_INTR_DATA_PULSING_EN (0 x1<<30 )
#define OTGSC_INTSTS_MASK (0 x00ff0000)
/* USB MODE Register Bit Masks */
#define USB_MODE_CTRL_MODE_IDLE (0 x0<<0 )
#define USB_MODE_CTRL_MODE_DEVICE (0 x2<<0 )
#define USB_MODE_CTRL_MODE_HOST (0 x3<<0 )
#define USB_MODE_CTRL_MODE_RSV (0 x1<<0 )
#define USB_MODE_SETUP_LOCK_OFF (0 x1<<3 )
#define USB_MODE_STREAM_DISABLE (0 x1<<4 )
#define USB_MODE_ES (0 x1<<2 ) /* Endian Select */
/* control Register Bit Masks */
#define USB_CTRL_IOENB (0 x1<<2 )
#define USB_CTRL_ULPI_INT0EN (0 x1<<0 )
/* BCSR5 */
#define BCSR5_INT_USB (0 x02)
/* USB module clk cfg */
#define SCCR_OFFS (0 xA08)
#define SCCR_USB_CLK_DISABLE (0 x00000000) /* USB clk disable */
#define SCCR_USB_MPHCM_11 (0 x00c00000)
#define SCCR_USB_MPHCM_01 (0 x00400000)
#define SCCR_USB_MPHCM_10 (0 x00800000)
#define SCCR_USB_DRCM_11 (0 x00300000)
#define SCCR_USB_DRCM_01 (0 x00100000)
#define SCCR_USB_DRCM_10 (0 x00200000)
#define SICRL_OFFS (0 x114)
#define SICRL_USB0 (0 x40000000)
#define SICRL_USB1 (0 x20000000)
#define SICRH_OFFS (0 x118)
#define SICRH_USB_UTMI (0 x00020000)
/* OTG interrupt enable bit masks */
#define OTGSC_INTERRUPT_ENABLE_BITS_MASK \
(OTGSC_INTR_USB_ID_EN | \
OTGSC_INTR_1MS_TIMER_EN | \
OTGSC_INTR_A_VBUS_VALID_EN | \
OTGSC_INTR_A_SESSION_VALID_EN | \
OTGSC_INTR_B_SESSION_VALID_EN | \
OTGSC_INTR_B_SESSION_END_EN | \
OTGSC_INTR_DATA_PULSING_EN)
/* OTG interrupt status bit masks */
#define OTGSC_INTERRUPT_STATUS_BITS_MASK \
(OTGSC_INTSTS_USB_ID | \
OTGSC_INTR_1MS_TIMER_EN | \
OTGSC_INTSTS_A_VBUS_VALID | \
OTGSC_INTSTS_A_SESSION_VALID | \
OTGSC_INTSTS_B_SESSION_VALID | \
OTGSC_INTSTS_B_SESSION_END | \
OTGSC_INTSTS_DATA_PULSING)
/*
* A-DEVICE timing constants
*/
/* Wait for VBUS Rise */
#define TA_WAIT_VRISE (100 ) /* a_wait_vrise 100 ms, section: 6.6.5.1 */
/* Wait for B-Connect */
#define TA_WAIT_BCON (10000 ) /* a_wait_bcon > 1 sec, section: 6.6.5.2
* This is only used to get out of
* OTG_STATE_A_WAIT_BCON state if there was
* no connection for these many milliseconds
*/
/* A-Idle to B-Disconnect */
/* It is necessary for this timer to be more than 750 ms because of a bug in OPT
* test 5.4 in which B OPT disconnects after 750 ms instead of 75ms as stated
* in the test description
*/
#define TA_AIDL_BDIS (5000 ) /* a_suspend minimum 200 ms, section: 6.6.5.3 */
/* B-Idle to A-Disconnect */
#define TA_BIDL_ADIS (12 ) /* 3 to 200 ms */
/* B-device timing constants */
/* Data-Line Pulse Time*/
#define TB_DATA_PLS (10 ) /* b_srp_init,continue 5~10ms, section:5.3.3 */
#define TB_DATA_PLS_MIN (5 ) /* minimum 5 ms */
#define TB_DATA_PLS_MAX (10 ) /* maximum 10 ms */
/* SRP Initiate Time */
#define TB_SRP_INIT (100 ) /* b_srp_init,maximum 100 ms, section:5.3.8 */
/* SRP Fail Time */
#define TB_SRP_FAIL (7000 ) /* b_srp_init,Fail time 5~30s, section:6.8.2.2*/
/* SRP result wait time */
#define TB_SRP_WAIT (60 )
/* VBus time */
#define TB_VBUS_PLS (30 ) /* time to keep vbus pulsing asserted */
/* Discharge time */
/* This time should be less than 10ms. It varies from system to system. */
#define TB_VBUS_DSCHRG (8 )
/* A-SE0 to B-Reset */
#define TB_ASE0_BRST (20 ) /* b_wait_acon, mini 3.125 ms,section:6.8.2.4 */
/* A bus suspend timer before we can switch to b_wait_aconn */
#define TB_A_SUSPEND (7 )
#define TB_BUS_RESUME (12 )
/* SE0 Time Before SRP */
#define TB_SE0_SRP (2 ) /* b_idle,minimum 2 ms, section:5.3.2 */
#define SET_OTG_STATE(phy, newstate) ((phy)->otg->state = newstate)
struct usb_dr_mmap {
/* Capability register */
u8 res1[256 ];
u16 caplength; /* Capability Register Length */
u16 hciversion; /* Host Controller Interface Version */
u32 hcsparams; /* Host Controller Structual Parameters */
u32 hccparams; /* Host Controller Capability Parameters */
u8 res2[20 ];
u32 dciversion; /* Device Controller Interface Version */
u32 dccparams; /* Device Controller Capability Parameters */
u8 res3[24 ];
/* Operation register */
u32 usbcmd; /* USB Command Register */
u32 usbsts; /* USB Status Register */
u32 usbintr; /* USB Interrupt Enable Register */
u32 frindex; /* Frame Index Register */
u8 res4[4 ];
u32 deviceaddr; /* Device Address */
u32 endpointlistaddr; /* Endpoint List Address Register */
u8 res5[4 ];
u32 burstsize; /* Master Interface Data Burst Size Register */
u32 txttfilltuning; /* Transmit FIFO Tuning Controls Register */
u8 res6[8 ];
u32 ulpiview; /* ULPI register access */
u8 res7[12 ];
u32 configflag; /* Configure Flag Register */
u32 portsc; /* Port 1 Status and Control Register */
u8 res8[28 ];
u32 otgsc; /* On-The-Go Status and Control */
u32 usbmode; /* USB Mode Register */
u32 endptsetupstat; /* Endpoint Setup Status Register */
u32 endpointprime; /* Endpoint Initialization Register */
u32 endptflush; /* Endpoint Flush Register */
u32 endptstatus; /* Endpoint Status Register */
u32 endptcomplete; /* Endpoint Complete Register */
u32 endptctrl[6 ]; /* Endpoint Control Registers */
u8 res9[552 ];
u32 snoop1;
u32 snoop2;
u32 age_cnt_thresh; /* Age Count Threshold Register */
u32 pri_ctrl; /* Priority Control Register */
u32 si_ctrl; /* System Interface Control Register */
u8 res10[236 ];
u32 control; /* General Purpose Control Register */
};
struct fsl_otg_timer {
unsigned long expires; /* Number of count increase to timeout */
unsigned long count; /* Tick counter */
void (*function)(unsigned long ); /* Timeout function */
unsigned long data; /* Data passed to function */
struct list_head list;
};
inline struct fsl_otg_timer *otg_timer_initializer
(void (*function)(unsigned long ), unsigned long expires, unsigned long data)
{
struct fsl_otg_timer *timer;
timer = kmalloc(sizeof (struct fsl_otg_timer), GFP_KERNEL);
if (!timer)
return NULL;
timer->function = function;
timer->expires = expires;
timer->data = data;
return timer;
}
struct fsl_otg {
struct usb_phy phy;
struct otg_fsm fsm;
struct usb_dr_mmap *dr_mem_map;
struct delayed_work otg_event;
/* used for usb host */
struct work_struct work_wq;
u8 host_working;
int irq;
};
struct fsl_otg_config {
u8 otg_port;
};
#define FSL_OTG_NAME "fsl-usb2-otg"
void fsl_otg_add_timer(struct otg_fsm *fsm, void *timer);
void fsl_otg_del_timer(struct otg_fsm *fsm, void *timer);
void fsl_otg_pulse_vbus(void );
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