/* Copyright (C) 2007,2008 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * 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., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "otg_fsm.h" #include <linux/usb/otg.h> #include <linux/ioctl.h> /* USB Command Register Bit Masks */ #define USB_CMD_RUN_STOP (0x1<<0) #define USB_CMD_CTRL_RESET (0x1<<1) #define USB_CMD_PERIODIC_SCHEDULE_EN (0x1<<4) #define USB_CMD_ASYNC_SCHEDULE_EN (0x1<<5) #define USB_CMD_INT_AA_DOORBELL (0x1<<6) #define USB_CMD_ASP (0x3<<8) #define USB_CMD_ASYNC_SCH_PARK_EN (0x1<<11) #define USB_CMD_SUTW (0x1<<13) #define USB_CMD_ATDTW (0x1<<14) #define USB_CMD_ITC (0xFF<<16) /* bit 15,3,2 are frame list size */ #define USB_CMD_FRAME_SIZE_1024 (0x0<<15 | 0x0<<2) #define USB_CMD_FRAME_SIZE_512 (0x0<<15 | 0x1<<2) #define USB_CMD_FRAME_SIZE_256 (0x0<<15 | 0x2<<2) #define USB_CMD_FRAME_SIZE_128 (0x0<<15 | 0x3<<2) #define USB_CMD_FRAME_SIZE_64 (0x1<<15 | 0x0<<2) #define USB_CMD_FRAME_SIZE_32 (0x1<<15 | 0x1<<2) #define USB_CMD_FRAME_SIZE_16 (0x1<<15 | 0x2<<2) #define USB_CMD_FRAME_SIZE_8 (0x1<<15 | 0x3<<2) /* bit 9-8 are async schedule park mode count */ #define USB_CMD_ASP_00 (0x0<<8) #define USB_CMD_ASP_01 (0x1<<8) #define USB_CMD_ASP_10 (0x2<<8) #define USB_CMD_ASP_11 (0x3<<8) #define USB_CMD_ASP_BIT_POS (8) /* bit 23-16 are interrupt threshold control */ #define USB_CMD_ITC_NO_THRESHOLD (0x00<<16) #define USB_CMD_ITC_1_MICRO_FRM (0x01<<16) #define USB_CMD_ITC_2_MICRO_FRM (0x02<<16) #define USB_CMD_ITC_4_MICRO_FRM (0x04<<16) #define USB_CMD_ITC_8_MICRO_FRM (0x08<<16) #define USB_CMD_ITC_16_MICRO_FRM (0x10<<16) #define USB_CMD_ITC_32_MICRO_FRM (0x20<<16) #define USB_CMD_ITC_64_MICRO_FRM (0x40<<16) #define USB_CMD_ITC_BIT_POS (16) /* USB Status Register Bit Masks */ #define USB_STS_INT (0x1<<0) #define USB_STS_ERR (0x1<<1) #define USB_STS_PORT_CHANGE (0x1<<2) #define USB_STS_FRM_LST_ROLL (0x1<<3) #define USB_STS_SYS_ERR (0x1<<4) #define USB_STS_IAA (0x1<<5) #define USB_STS_RESET_RECEIVED (0x1<<6) #define USB_STS_SOF (0x1<<7) #define USB_STS_DCSUSPEND (0x1<<8) #define USB_STS_HC_HALTED (0x1<<12) #define USB_STS_RCL (0x1<<13) #define USB_STS_PERIODIC_SCHEDULE (0x1<<14) #define USB_STS_ASYNC_SCHEDULE (0x1<<15) /* USB Interrupt Enable Register Bit Masks */ #define USB_INTR_INT_EN (0x1<<0) #define USB_INTR_ERR_INT_EN (0x1<<1) #define USB_INTR_PC_DETECT_EN (0x1<<2) #define USB_INTR_FRM_LST_ROLL_EN (0x1<<3) #define USB_INTR_SYS_ERR_EN (0x1<<4) #define USB_INTR_ASYN_ADV_EN (0x1<<5) #define USB_INTR_RESET_EN (0x1<<6) #define USB_INTR_SOF_EN (0x1<<7) #define USB_INTR_DEVICE_SUSPEND (0x1<<8) /* Device Address bit masks */ #define USB_DEVICE_ADDRESS_MASK (0x7F<<25) #define USB_DEVICE_ADDRESS_BIT_POS (25) /* PORTSC Register Bit Masks,Only one PORT in OTG mode*/ #define PORTSC_CURRENT_CONNECT_STATUS (0x1<<0) #define PORTSC_CONNECT_STATUS_CHANGE (0x1<<1) #define PORTSC_PORT_ENABLE (0x1<<2) #define PORTSC_PORT_EN_DIS_CHANGE (0x1<<3) #define PORTSC_OVER_CURRENT_ACT (0x1<<4) #define PORTSC_OVER_CUURENT_CHG (0x1<<5) #define PORTSC_PORT_FORCE_RESUME (0x1<<6) #define PORTSC_PORT_SUSPEND (0x1<<7) #define PORTSC_PORT_RESET (0x1<<8) #define PORTSC_LINE_STATUS_BITS (0x3<<10) #define PORTSC_PORT_POWER (0x1<<12) #define PORTSC_PORT_INDICTOR_CTRL (0x3<<14) #define PORTSC_PORT_TEST_CTRL (0xF<<16) #define PORTSC_WAKE_ON_CONNECT_EN (0x1<<20) #define PORTSC_WAKE_ON_CONNECT_DIS (0x1<<21) #define PORTSC_WAKE_ON_OVER_CURRENT (0x1<<22) #define PORTSC_PHY_LOW_POWER_SPD (0x1<<23) #define PORTSC_PORT_FORCE_FULL_SPEED (0x1<<24) #define PORTSC_PORT_SPEED_MASK (0x3<<26) #define PORTSC_TRANSCEIVER_WIDTH (0x1<<28) #define PORTSC_PHY_TYPE_SEL (0x3<<30) /* bit 11-10 are line status */ #define PORTSC_LINE_STATUS_SE0 (0x0<<10) #define PORTSC_LINE_STATUS_JSTATE (0x1<<10) #define PORTSC_LINE_STATUS_KSTATE (0x2<<10) #define PORTSC_LINE_STATUS_UNDEF (0x3<<10) #define PORTSC_LINE_STATUS_BIT_POS (10) /* bit 15-14 are port indicator control */ #define PORTSC_PIC_OFF (0x0<<14) #define PORTSC_PIC_AMBER (0x1<<14) #define PORTSC_PIC_GREEN (0x2<<14) #define PORTSC_PIC_UNDEF (0x3<<14) #define PORTSC_PIC_BIT_POS (14) /* bit 19-16 are port test control */ #define PORTSC_PTC_DISABLE (0x0<<16) #define PORTSC_PTC_JSTATE (0x1<<16) #define PORTSC_PTC_KSTATE (0x2<<16) #define PORTSC_PTC_SEQNAK (0x3<<16) #define PORTSC_PTC_PACKET (0x4<<16) #define PORTSC_PTC_FORCE_EN (0x5<<16) #define PORTSC_PTC_BIT_POS (16) /* bit 27-26 are port speed */ #define PORTSC_PORT_SPEED_FULL (0x0<<26) #define PORTSC_PORT_SPEED_LOW (0x1<<26) #define PORTSC_PORT_SPEED_HIGH (0x2<<26) #define PORTSC_PORT_SPEED_UNDEF (0x3<<26) #define PORTSC_SPEED_BIT_POS (26) /* bit 28 is parallel transceiver width for UTMI interface */ #define PORTSC_PTW (0x1<<28) #define PORTSC_PTW_8BIT (0x0<<28) #define PORTSC_PTW_16BIT (0x1<<28) /* bit 31-30 are port transceiver select */ #define PORTSC_PTS_UTMI (0x0<<30) #define PORTSC_PTS_ULPI (0x2<<30) #define PORTSC_PTS_FSLS_SERIAL (0x3<<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 (0x1<<0) #define OTGSC_CTRL_VBUS_CHARGE (0x1<<1) #define OTGSC_CTRL_OTG_TERMINATION (0x1<<3) #define OTGSC_CTRL_DATA_PULSING (0x1<<4) #define OTGSC_CTRL_ID_PULL_EN (0x1<<5) #define OTGSC_HA_DATA_PULSE (0x1<<6) #define OTGSC_HA_BA (0x1<<7) #define OTGSC_STS_USB_ID (0x1<<8) #define OTGSC_STS_A_VBUS_VALID (0x1<<9) #define OTGSC_STS_A_SESSION_VALID (0x1<<10) #define OTGSC_STS_B_SESSION_VALID (0x1<<11) #define OTGSC_STS_B_SESSION_END (0x1<<12) #define OTGSC_STS_1MS_TOGGLE (0x1<<13) #define OTGSC_STS_DATA_PULSING (0x1<<14) #define OTGSC_INTSTS_USB_ID (0x1<<16) #define OTGSC_INTSTS_A_VBUS_VALID (0x1<<17) #define OTGSC_INTSTS_A_SESSION_VALID (0x1<<18) #define OTGSC_INTSTS_B_SESSION_VALID (0x1<<19) #define OTGSC_INTSTS_B_SESSION_END (0x1<<20) #define OTGSC_INTSTS_1MS (0x1<<21) #define OTGSC_INTSTS_DATA_PULSING (0x1<<22) #define OTGSC_INTR_USB_ID_EN (0x1<<24) #define OTGSC_INTR_A_VBUS_VALID_EN (0x1<<25) #define OTGSC_INTR_A_SESSION_VALID_EN (0x1<<26) #define OTGSC_INTR_B_SESSION_VALID_EN (0x1<<27) #define OTGSC_INTR_B_SESSION_END_EN (0x1<<28) #define OTGSC_INTR_1MS_TIMER_EN (0x1<<29) #define OTGSC_INTR_DATA_PULSING_EN (0x1<<30) #define OTGSC_INTSTS_MASK (0x00ff0000) /* USB MODE Register Bit Masks */ #define USB_MODE_CTRL_MODE_IDLE (0x0<<0) #define USB_MODE_CTRL_MODE_DEVICE (0x2<<0) #define USB_MODE_CTRL_MODE_HOST (0x3<<0) #define USB_MODE_CTRL_MODE_RSV (0x1<<0) #define USB_MODE_SETUP_LOCK_OFF (0x1<<3) #define USB_MODE_STREAM_DISABLE (0x1<<4) #define USB_MODE_ES (0x1<<2) /* Endian Select */ /* control Register Bit Masks */ #define USB_CTRL_IOENB (0x1<<2) #define USB_CTRL_ULPI_INT0EN (0x1<<0) /* BCSR5 */ #define BCSR5_INT_USB (0x02) /* USB module clk cfg */ #define SCCR_OFFS (0xA08) #define SCCR_USB_CLK_DISABLE (0x00000000) /* USB clk disable */ #define SCCR_USB_MPHCM_11 (0x00c00000) #define SCCR_USB_MPHCM_01 (0x00400000) #define SCCR_USB_MPHCM_10 (0x00800000) #define SCCR_USB_DRCM_11 (0x00300000) #define SCCR_USB_DRCM_01 (0x00100000) #define SCCR_USB_DRCM_10 (0x00200000) #define SICRL_OFFS (0x114) #define SICRL_USB0 (0x40000000) #define SICRL_USB1 (0x20000000) #define SICRH_OFFS (0x118) #define SICRH_USB_UTMI (0x00020000) /* 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(otg_ptr, newstate) ((otg_ptr)->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 otg_transceiver otg; 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; }; /* For SRP and HNP handle */ #define FSL_OTG_MAJOR 240 #define FSL_OTG_NAME "fsl-usb2-otg" /* Command to OTG driver ioctl */ #define OTG_IOCTL_MAGIC FSL_OTG_MAJOR /* if otg work as host, it should return 1, otherwise return 0 */ #define GET_OTG_STATUS _IOR(OTG_IOCTL_MAGIC, 1, int) #define SET_A_SUSPEND_REQ _IOW(OTG_IOCTL_MAGIC, 2, int) #define SET_A_BUS_DROP _IOW(OTG_IOCTL_MAGIC, 3, int) #define SET_A_BUS_REQ _IOW(OTG_IOCTL_MAGIC, 4, int) #define SET_B_BUS_REQ _IOW(OTG_IOCTL_MAGIC, 5, int) #define GET_A_SUSPEND_REQ _IOR(OTG_IOCTL_MAGIC, 6, int) #define GET_A_BUS_DROP _IOR(OTG_IOCTL_MAGIC, 7, int) #define GET_A_BUS_REQ _IOR(OTG_IOCTL_MAGIC, 8, int) #define GET_B_BUS_REQ _IOR(OTG_IOCTL_MAGIC, 9, int) void fsl_otg_add_timer(void *timer); void fsl_otg_del_timer(void *timer); void fsl_otg_pulse_vbus(void);