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* core.h - DesignWare HS OTG Controller common declarations
*
* Copyright (C) 2004-2013 Synopsys, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DWC2_CORE_H__
#define __DWC2_CORE_H__
#include <linux/usb/phy.h>
#include "hw.h"
#ifdef DWC2_LOG_WRITES
static inline void do_write(u32 value, void *addr)
{
writel(value, addr);
pr_info("INFO:: wrote %08x to %p\n", value, addr);
}
#undef writel
#define writel(v, a) do_write(v, a)
#endif
/* Maximum number of Endpoints/HostChannels */
#define MAX_EPS_CHANNELS 16
struct dwc2_hsotg;
struct dwc2_host_chan;
/* Device States */
enum dwc2_lx_state {
DWC2_L0, /* On state */
DWC2_L1, /* LPM sleep state */
DWC2_L2, /* USB suspend state */
DWC2_L3, /* Off state */
};
/**
* struct dwc2_core_params - Parameters for configuring the core
*
* @otg_cap: Specifies the OTG capabilities. The driver will
* automatically detect the value for this parameter if
* none is specified.
* 0 - HNP and SRP capable (default)
* 1 - SRP Only capable
* 2 - No HNP/SRP capable
* @dma_enable: Specifies whether to use slave or DMA mode for accessing
* the data FIFOs. The driver will automatically detect the
* value for this parameter if none is specified.
* 0 - Slave
* 1 - DMA (default, if available)
* @dma_desc_enable: When DMA mode is enabled, specifies whether to use
* address DMA mode or descriptor DMA mode for accessing
* the data FIFOs. The driver will automatically detect the
* value for this if none is specified.
* 0 - Address DMA
* 1 - Descriptor DMA (default, if available)
* @speed: Specifies the maximum speed of operation in host and
* device mode. The actual speed depends on the speed of
* the attached device and the value of phy_type.
* 0 - High Speed (default)
* 1 - Full Speed
* @host_support_fs_ls_low_power: Specifies whether low power mode is supported
* when attached to a Full Speed or Low Speed device in
* host mode.
* 0 - Don't support low power mode (default)
* 1 - Support low power mode
* @host_ls_low_power_phy_clk: Specifies the PHY clock rate in low power mode
* when connected to a Low Speed device in host mode. This
* parameter is applicable only if
* host_support_fs_ls_low_power is enabled. If phy_type is
* set to FS then defaults to 6 MHZ otherwise 48 MHZ.
* 0 - 48 MHz
* 1 - 6 MHz
* @enable_dynamic_fifo: 0 - Use coreConsultant-specified FIFO size parameters
* 1 - Allow dynamic FIFO sizing (default)
* @host_rx_fifo_size: Number of 4-byte words in the Rx FIFO in host mode when
* dynamic FIFO sizing is enabled
* 16 to 32768 (default 1024)
* @host_nperio_tx_fifo_size: Number of 4-byte words in the non-periodic Tx FIFO
* in host mode when dynamic FIFO sizing is enabled
* 16 to 32768 (default 1024)
* @host_perio_tx_fifo_size: Number of 4-byte words in the periodic Tx FIFO in
* host mode when dynamic FIFO sizing is enabled
* 16 to 32768 (default 1024)
* @max_transfer_size: The maximum transfer size supported, in bytes
* 2047 to 65,535 (default 65,535)
* @max_packet_count: The maximum number of packets in a transfer
* 15 to 511 (default 511)
* @host_channels: The number of host channel registers to use
* 1 to 16 (default 12)
* @phy_type: Specifies the type of PHY interface to use. By default,
* the driver will automatically detect the phy_type.
* @phy_utmi_width: Specifies the UTMI+ Data Width (in bits). This parameter
* is applicable for a phy_type of UTMI+ or ULPI. (For a
* ULPI phy_type, this parameter indicates the data width
* between the MAC and the ULPI Wrapper.) Also, this
* parameter is applicable only if the OTG_HSPHY_WIDTH cC
* parameter was set to "8 and 16 bits", meaning that the
* core has been configured to work at either data path
* width.
* 8 or 16 (default 16)
* @phy_ulpi_ddr: Specifies whether the ULPI operates at double or single
* data rate. This parameter is only applicable if phy_type
* is ULPI.
* 0 - single data rate ULPI interface with 8 bit wide
* data bus (default)
* 1 - double data rate ULPI interface with 4 bit wide
* data bus
* @phy_ulpi_ext_vbus: For a ULPI phy, specifies whether to use the internal or
* external supply to drive the VBus
* @i2c_enable: Specifies whether to use the I2Cinterface for a full
* speed PHY. This parameter is only applicable if phy_type
* is FS.
* 0 - No (default)
* 1 - Yes
* @ulpi_fs_ls: True to make ULPI phy operate in FS/LS mode only
* @ts_dline: True to enable Term Select Dline pulsing
* @en_multiple_tx_fifo: Specifies whether dedicated per-endpoint transmit FIFOs
* are enabled
* @reload_ctl: True to allow dynamic reloading of HFIR register during
* runtime
* @ahb_single: This bit enables SINGLE transfers for remainder data in
* a transfer for DMA mode of operation.
* 0 - remainder data will be sent using INCR burst size
* 1 - remainder data will be sent using SINGLE burst size
* @otg_ver: OTG version supported
* 0 - 1.3
* 1 - 2.0
*
* The following parameters may be specified when starting the module. These
* parameters define how the DWC_otg controller should be configured.
*/
struct dwc2_core_params {
/*
* Don't add any non-int members here, this will break
* dwc2_set_all_params!
*/
int otg_cap;
int otg_ver;
int dma_enable;
int dma_desc_enable;
int speed;
int enable_dynamic_fifo;
int en_multiple_tx_fifo;
int host_rx_fifo_size;
int host_nperio_tx_fifo_size;
int host_perio_tx_fifo_size;
int max_transfer_size;
int max_packet_count;
int host_channels;
int phy_type;
int phy_utmi_width;
int phy_ulpi_ddr;
int phy_ulpi_ext_vbus;
int i2c_enable;
int ulpi_fs_ls;
int host_support_fs_ls_low_power;
int host_ls_low_power_phy_clk;
int ts_dline;
int reload_ctl;
int ahb_single;
};
/**
* struct dwc2_hsotg - Holds the state of the driver, including the non-periodic
* and periodic schedules
*
* @dev: The struct device pointer
* @regs: Pointer to controller regs
* @core_params: Parameters that define how the core should be configured
* @hwcfg1: Hardware Configuration - stored here for convenience
* @hwcfg2: Hardware Configuration - stored here for convenience
* @hwcfg3: Hardware Configuration - stored here for convenience
* @hwcfg4: Hardware Configuration - stored here for convenience
* @hptxfsiz: Hardware Configuration - stored here for convenience
* @snpsid: Value from SNPSID register
* @total_fifo_size: Total internal RAM for FIFOs (bytes)
* @rx_fifo_size: Size of Rx FIFO (bytes)
* @nperio_tx_fifo_size: Size of Non-periodic Tx FIFO (Bytes)
* @op_state: The operational State, during transitions (a_host=>
* a_peripheral and b_device=>b_host) this may not match
* the core, but allows the software to determine
* transitions
* @queuing_high_bandwidth: True if multiple packets of a high-bandwidth
* transfer are in process of being queued
* @srp_success: Stores status of SRP request in the case of a FS PHY
* with an I2C interface
* @wq_otg: Workqueue object used for handling of some interrupts
* @wf_otg: Work object for handling Connector ID Status Change
* interrupt
* @wkp_timer: Timer object for handling Wakeup Detected interrupt
* @lx_state: Lx state of connected device
* @flags: Flags for handling root port state changes
* @non_periodic_sched_inactive: Inactive QHs in the non-periodic schedule.
* Transfers associated with these QHs are not currently
* assigned to a host channel.
* @non_periodic_sched_active: Active QHs in the non-periodic schedule.
* Transfers associated with these QHs are currently
* assigned to a host channel.
* @non_periodic_qh_ptr: Pointer to next QH to process in the active
* non-periodic schedule
* @periodic_sched_inactive: Inactive QHs in the periodic schedule. This is a
* list of QHs for periodic transfers that are _not_
* scheduled for the next frame. Each QH in the list has an
* interval counter that determines when it needs to be
* scheduled for execution. This scheduling mechanism
* allows only a simple calculation for periodic bandwidth
* used (i.e. must assume that all periodic transfers may
* need to execute in the same frame). However, it greatly
* simplifies scheduling and should be sufficient for the
* vast majority of OTG hosts, which need to connect to a
* small number of peripherals at one time. Items move from
* this list to periodic_sched_ready when the QH interval
* counter is 0 at SOF.
* @periodic_sched_ready: List of periodic QHs that are ready for execution in
* the next frame, but have not yet been assigned to host
* channels. Items move from this list to
* periodic_sched_assigned as host channels become
* available during the current frame.
* @periodic_sched_assigned: List of periodic QHs to be executed in the next
* frame that are assigned to host channels. Items move
* from this list to periodic_sched_queued as the
* transactions for the QH are queued to the DWC_otg
* controller.
* @periodic_sched_queued: List of periodic QHs that have been queued for
* execution. Items move from this list to either
* periodic_sched_inactive or periodic_sched_ready when the
* channel associated with the transfer is released. If the
* interval for the QH is 1, the item moves to
* periodic_sched_ready because it must be rescheduled for
* the next frame. Otherwise, the item moves to
* periodic_sched_inactive.
* @periodic_usecs: Total bandwidth claimed so far for periodic transfers.
* This value is in microseconds per (micro)frame. The
* assumption is that all periodic transfers may occur in
* the same (micro)frame.
* @frame_number: Frame number read from the core at SOF. The value ranges
* from 0 to HFNUM_MAX_FRNUM.
* @periodic_qh_count: Count of periodic QHs, if using several eps. Used for
* SOF enable/disable.
* @free_hc_list: Free host channels in the controller. This is a list of
* struct dwc2_host_chan items.
* @periodic_channels: Number of host channels assigned to periodic transfers.
* Currently assuming that there is a dedicated host
* channel for each periodic transaction and at least one
* host channel is available for non-periodic transactions.
* @non_periodic_channels: Number of host channels assigned to non-periodic
* transfers
* @hc_ptr_array: Array of pointers to the host channel descriptors.
* Allows accessing a host channel descriptor given the
* host channel number. This is useful in interrupt
* handlers.
* @status_buf: Buffer used for data received during the status phase of
* a control transfer.
* @status_buf_dma: DMA address for status_buf
* @start_work: Delayed work for handling host A-cable connection
* @reset_work: Delayed work for handling a port reset
* @lock: Spinlock that protects all the driver data structures
* @priv: Stores a pointer to the struct usb_hcd
* @otg_port: OTG port number
* @frame_list: Frame list
* @frame_list_dma: Frame list DMA address
*/
struct dwc2_hsotg {
struct device *dev;
void __iomem *regs;
struct dwc2_core_params *core_params;
u32 hwcfg1;
u32 hwcfg2;
u32 hwcfg3;
u32 hwcfg4;
u32 hptxfsiz;
u32 snpsid;
u16 total_fifo_size;
u16 rx_fifo_size;
u16 nperio_tx_fifo_size;
enum usb_otg_state op_state;
unsigned int queuing_high_bandwidth:1;
unsigned int srp_success:1;
struct workqueue_struct *wq_otg;
struct work_struct wf_otg;
struct timer_list wkp_timer;
enum dwc2_lx_state lx_state;
union dwc2_hcd_internal_flags {
u32 d32;
struct {
unsigned port_connect_status_change:1;
unsigned port_connect_status:1;
unsigned port_reset_change:1;
unsigned port_enable_change:1;
unsigned port_suspend_change:1;
unsigned port_over_current_change:1;
unsigned port_l1_change:1;
unsigned reserved:26;
} b;
} flags;
struct list_head non_periodic_sched_inactive;
struct list_head non_periodic_sched_active;
struct list_head *non_periodic_qh_ptr;
struct list_head periodic_sched_inactive;
struct list_head periodic_sched_ready;
struct list_head periodic_sched_assigned;
struct list_head periodic_sched_queued;
u16 periodic_usecs;
u16 frame_number;
u16 periodic_qh_count;
#ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS
#define FRAME_NUM_ARRAY_SIZE 1000
u16 last_frame_num;
u16 *frame_num_array;
u16 *last_frame_num_array;
int frame_num_idx;
int dumped_frame_num_array;
#endif
struct list_head free_hc_list;
int periodic_channels;
int non_periodic_channels;
struct dwc2_host_chan *hc_ptr_array[MAX_EPS_CHANNELS];
u8 *status_buf;
dma_addr_t status_buf_dma;
#define DWC2_HCD_STATUS_BUF_SIZE 64
struct delayed_work start_work;
struct delayed_work reset_work;
spinlock_t lock;
void *priv;
u8 otg_port;
u32 *frame_list;
dma_addr_t frame_list_dma;
/* DWC OTG HW Release versions */
#define DWC2_CORE_REV_2_71a 0x4f54271a
#define DWC2_CORE_REV_2_90a 0x4f54290a
#define DWC2_CORE_REV_2_92a 0x4f54292a
#define DWC2_CORE_REV_2_94a 0x4f54294a
#define DWC2_CORE_REV_3_00a 0x4f54300a
#ifdef DEBUG
u32 frrem_samples;
u64 frrem_accum;
u32 hfnum_7_samples_a;
u64 hfnum_7_frrem_accum_a;
u32 hfnum_0_samples_a;
u64 hfnum_0_frrem_accum_a;
u32 hfnum_other_samples_a;
u64 hfnum_other_frrem_accum_a;
u32 hfnum_7_samples_b;
u64 hfnum_7_frrem_accum_b;
u32 hfnum_0_samples_b;
u64 hfnum_0_frrem_accum_b;
u32 hfnum_other_samples_b;
u64 hfnum_other_frrem_accum_b;
#endif
};
/* Reasons for halting a host channel */
enum dwc2_halt_status {
DWC2_HC_XFER_NO_HALT_STATUS,
DWC2_HC_XFER_COMPLETE,
DWC2_HC_XFER_URB_COMPLETE,
DWC2_HC_XFER_ACK,
DWC2_HC_XFER_NAK,
DWC2_HC_XFER_NYET,
DWC2_HC_XFER_STALL,
DWC2_HC_XFER_XACT_ERR,
DWC2_HC_XFER_FRAME_OVERRUN,
DWC2_HC_XFER_BABBLE_ERR,
DWC2_HC_XFER_DATA_TOGGLE_ERR,
DWC2_HC_XFER_AHB_ERR,
DWC2_HC_XFER_PERIODIC_INCOMPLETE,
DWC2_HC_XFER_URB_DEQUEUE,
};
/*
* The following functions support initialization of the core driver component
* and the DWC_otg controller
*/
extern void dwc2_core_host_init(struct dwc2_hsotg *hsotg);
/*
* Host core Functions.
* The following functions support managing the DWC_otg controller in host
* mode.
*/
extern void dwc2_hc_init(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan);
extern void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan,
enum dwc2_halt_status halt_status);
extern void dwc2_hc_cleanup(struct dwc2_hsotg *hsotg,
struct dwc2_host_chan *chan);
extern void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
struct dwc2_host_chan *chan);
extern void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg,
struct dwc2_host_chan *chan);
extern int dwc2_hc_continue_transfer(struct dwc2_hsotg *hsotg,
struct dwc2_host_chan *chan);
extern void dwc2_hc_do_ping(struct dwc2_hsotg *hsotg,
struct dwc2_host_chan *chan);
extern void dwc2_enable_host_interrupts(struct dwc2_hsotg *hsotg);
extern void dwc2_disable_host_interrupts(struct dwc2_hsotg *hsotg);
extern u32 dwc2_calc_frame_interval(struct dwc2_hsotg *hsotg);
extern int dwc2_check_core_status(struct dwc2_hsotg *hsotg);
/*
* Common core Functions.
* The following functions support managing the DWC_otg controller in either
* device or host mode.
*/
extern void dwc2_read_packet(struct dwc2_hsotg *hsotg, u8 *dest, u16 bytes);
extern void dwc2_flush_tx_fifo(struct dwc2_hsotg *hsotg, const int num);
extern void dwc2_flush_rx_fifo(struct dwc2_hsotg *hsotg);
extern int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq);
extern void dwc2_enable_global_interrupts(struct dwc2_hsotg *hcd);
extern void dwc2_disable_global_interrupts(struct dwc2_hsotg *hcd);
/* This function should be called on every hardware interrupt. */
extern irqreturn_t dwc2_handle_common_intr(int irq, void *dev);
/* OTG Core Parameters */
/*
* Specifies the OTG capabilities. The driver will automatically
* detect the value for this parameter if none is specified.
* 0 - HNP and SRP capable (default)
* 1 - SRP Only capable
* 2 - No HNP/SRP capable
*/
extern int dwc2_set_param_otg_cap(struct dwc2_hsotg *hsotg, int val);
#define DWC2_CAP_PARAM_HNP_SRP_CAPABLE 0
#define DWC2_CAP_PARAM_SRP_ONLY_CAPABLE 1
#define DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE 2
/*
* Specifies whether to use slave or DMA mode for accessing the data
* FIFOs. The driver will automatically detect the value for this
* parameter if none is specified.
* 0 - Slave
* 1 - DMA (default, if available)
*/
extern int dwc2_set_param_dma_enable(struct dwc2_hsotg *hsotg, int val);
/*
* When DMA mode is enabled specifies whether to use
* address DMA or DMA Descritor mode for accessing the data
* FIFOs in device mode. The driver will automatically detect
* the value for this parameter if none is specified.
* 0 - address DMA
* 1 - DMA Descriptor(default, if available)
*/
extern int dwc2_set_param_dma_desc_enable(struct dwc2_hsotg *hsotg, int val);
/*
* Specifies the maximum speed of operation in host and device mode.
* The actual speed depends on the speed of the attached device and
* the value of phy_type. The actual speed depends on the speed of the
* attached device.
* 0 - High Speed (default)
* 1 - Full Speed
*/
extern int dwc2_set_param_speed(struct dwc2_hsotg *hsotg, int val);
#define DWC2_SPEED_PARAM_HIGH 0
#define DWC2_SPEED_PARAM_FULL 1
/*
* Specifies whether low power mode is supported when attached
* to a Full Speed or Low Speed device in host mode.
*
* 0 - Don't support low power mode (default)
* 1 - Support low power mode
*/
extern int dwc2_set_param_host_support_fs_ls_low_power(struct dwc2_hsotg *hsotg,
int val);
/*
* Specifies the PHY clock rate in low power mode when connected to a
* Low Speed device in host mode. This parameter is applicable only if
* HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS
* then defaults to 6 MHZ otherwise 48 MHZ.
*
* 0 - 48 MHz
* 1 - 6 MHz
*/
extern int dwc2_set_param_host_ls_low_power_phy_clk(struct dwc2_hsotg *hsotg,
int val);
#define DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ 0
#define DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ 1
/*
* 0 - Use cC FIFO size parameters
* 1 - Allow dynamic FIFO sizing (default)
*/
extern int dwc2_set_param_enable_dynamic_fifo(struct dwc2_hsotg *hsotg,
int val);
/*
* Number of 4-byte words in the Rx FIFO in host mode when dynamic
* FIFO sizing is enabled.
* 16 to 32768 (default 1024)
*/
extern int dwc2_set_param_host_rx_fifo_size(struct dwc2_hsotg *hsotg, int val);
/*
* Number of 4-byte words in the non-periodic Tx FIFO in host mode
* when Dynamic FIFO sizing is enabled in the core.
* 16 to 32768 (default 256)
*/
extern int dwc2_set_param_host_nperio_tx_fifo_size(struct dwc2_hsotg *hsotg,
int val);
/*
* Number of 4-byte words in the host periodic Tx FIFO when dynamic
* FIFO sizing is enabled.
* 16 to 32768 (default 256)
*/
extern int dwc2_set_param_host_perio_tx_fifo_size(struct dwc2_hsotg *hsotg,
int val);
/*
* The maximum transfer size supported in bytes.
* 2047 to 65,535 (default 65,535)
*/
extern int dwc2_set_param_max_transfer_size(struct dwc2_hsotg *hsotg, int val);
/*
* The maximum number of packets in a transfer.
* 15 to 511 (default 511)
*/
extern int dwc2_set_param_max_packet_count(struct dwc2_hsotg *hsotg, int val);
/*
* The number of host channel registers to use.
* 1 to 16 (default 11)
* Note: The FPGA configuration supports a maximum of 11 host channels.
*/
extern int dwc2_set_param_host_channels(struct dwc2_hsotg *hsotg, int val);
/*
* Specifies the type of PHY interface to use. By default, the driver
* will automatically detect the phy_type.
*
* 0 - Full Speed PHY
* 1 - UTMI+ (default)
* 2 - ULPI
*/
extern int dwc2_set_param_phy_type(struct dwc2_hsotg *hsotg, int val);
#define DWC2_PHY_TYPE_PARAM_FS 0
#define DWC2_PHY_TYPE_PARAM_UTMI 1
#define DWC2_PHY_TYPE_PARAM_ULPI 2
/*
* Specifies the UTMI+ Data Width. This parameter is
* applicable for a PHY_TYPE of UTMI+ or ULPI. (For a ULPI
* PHY_TYPE, this parameter indicates the data width between
* the MAC and the ULPI Wrapper.) Also, this parameter is
* applicable only if the OTG_HSPHY_WIDTH cC parameter was set
* to "8 and 16 bits", meaning that the core has been
* configured to work at either data path width.
*
* 8 or 16 bits (default 16)
*/
extern int dwc2_set_param_phy_utmi_width(struct dwc2_hsotg *hsotg, int val);
/*
* Specifies whether the ULPI operates at double or single
* data rate. This parameter is only applicable if PHY_TYPE is
* ULPI.
*
* 0 - single data rate ULPI interface with 8 bit wide data
* bus (default)
* 1 - double data rate ULPI interface with 4 bit wide data
* bus
*/
extern int dwc2_set_param_phy_ulpi_ddr(struct dwc2_hsotg *hsotg, int val);
/*
* Specifies whether to use the internal or external supply to
* drive the vbus with a ULPI phy.
*/
extern int dwc2_set_param_phy_ulpi_ext_vbus(struct dwc2_hsotg *hsotg, int val);
#define DWC2_PHY_ULPI_INTERNAL_VBUS 0
#define DWC2_PHY_ULPI_EXTERNAL_VBUS 1
/*
* Specifies whether to use the I2Cinterface for full speed PHY. This
* parameter is only applicable if PHY_TYPE is FS.
* 0 - No (default)
* 1 - Yes
*/
extern int dwc2_set_param_i2c_enable(struct dwc2_hsotg *hsotg, int val);
extern int dwc2_set_param_ulpi_fs_ls(struct dwc2_hsotg *hsotg, int val);
extern int dwc2_set_param_ts_dline(struct dwc2_hsotg *hsotg, int val);
/*
* Specifies whether dedicated transmit FIFOs are
* enabled for non periodic IN endpoints in device mode
* 0 - No
* 1 - Yes
*/
extern int dwc2_set_param_en_multiple_tx_fifo(struct dwc2_hsotg *hsotg,
int val);
extern int dwc2_set_param_reload_ctl(struct dwc2_hsotg *hsotg, int val);
extern int dwc2_set_param_ahb_single(struct dwc2_hsotg *hsotg, int val);
extern int dwc2_set_param_otg_ver(struct dwc2_hsotg *hsotg, int val);
/*
* Dump core registers and SPRAM
*/
extern void dwc2_dump_dev_registers(struct dwc2_hsotg *hsotg);
extern void dwc2_dump_host_registers(struct dwc2_hsotg *hsotg);
extern void dwc2_dump_global_registers(struct dwc2_hsotg *hsotg);
/*
* Return OTG version - either 1.3 or 2.0
*/
extern u16 dwc2_get_otg_version(struct dwc2_hsotg *hsotg);
#endif /* __DWC2_CORE_H__ */
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