| /* linux/include/asm-arm/arch-msm/hsusb.h |
| * |
| * Copyright (C) 2008 Google, Inc. |
| * Author: Brian Swetland <swetland@google.com> |
| * Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved. |
| * |
| * This software is licensed under the terms of the GNU General Public |
| * License version 2, as published by the Free Software Foundation, and |
| * may be copied, distributed, and modified under those terms. |
| * |
| * 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. |
| * |
| */ |
| |
| #ifndef __ASM_ARCH_MSM_HSUSB_H |
| #define __ASM_ARCH_MSM_HSUSB_H |
| |
| #include <linux/types.h> |
| #include <linux/usb/otg.h> |
| #include <linux/wakelock.h> |
| #include <linux/pm_qos_params.h> |
| |
| /** |
| * Supported USB modes |
| * |
| * USB_PERIPHERAL Only peripheral mode is supported. |
| * USB_HOST Only host mode is supported. |
| * USB_OTG OTG mode is supported. |
| * |
| */ |
| enum usb_mode_type { |
| USB_NONE = 0, |
| USB_PERIPHERAL, |
| USB_HOST, |
| USB_OTG, |
| }; |
| |
| /** |
| * OTG control |
| * |
| * OTG_NO_CONTROL Id/VBUS notifications not required. Useful in host |
| * only configuration. |
| * OTG_PHY_CONTROL Id/VBUS notifications comes form USB PHY. |
| * OTG_PMIC_CONTROL Id/VBUS notifications comes from PMIC hardware. |
| * OTG_USER_CONTROL Id/VBUS notifcations comes from User via sysfs. |
| * |
| */ |
| enum otg_control_type { |
| OTG_NO_CONTROL = 0, |
| OTG_PHY_CONTROL, |
| OTG_PMIC_CONTROL, |
| OTG_USER_CONTROL, |
| }; |
| |
| /** |
| * PHY used in |
| * |
| * INVALID_PHY Unsupported PHY |
| * CI_45NM_INTEGRATED_PHY Chipidea 45nm integrated PHY |
| * SNPS_28NM_INTEGRATED_PHY Synopsis 28nm integrated PHY |
| * |
| */ |
| enum msm_usb_phy_type { |
| INVALID_PHY = 0, |
| CI_45NM_INTEGRATED_PHY, |
| SNPS_28NM_INTEGRATED_PHY, |
| }; |
| |
| #define IDEV_CHG_MAX 1500 |
| #define IDEV_CHG_MIN 500 |
| #define IUNIT 100 |
| |
| #define IDEV_ACA_CHG_MAX 1500 |
| #define IDEV_ACA_CHG_LIMIT 500 |
| |
| /** |
| * Different states involved in USB charger detection. |
| * |
| * USB_CHG_STATE_UNDEFINED USB charger is not connected or detection |
| * process is not yet started. |
| * USB_CHG_STATE_WAIT_FOR_DCD Waiting for Data pins contact. |
| * USB_CHG_STATE_DCD_DONE Data pin contact is detected. |
| * USB_CHG_STATE_PRIMARY_DONE Primary detection is completed (Detects |
| * between SDP and DCP/CDP). |
| * USB_CHG_STATE_SECONDARY_DONE Secondary detection is completed (Detects |
| * between DCP and CDP). |
| * USB_CHG_STATE_DETECTED USB charger type is determined. |
| * |
| */ |
| enum usb_chg_state { |
| USB_CHG_STATE_UNDEFINED = 0, |
| USB_CHG_STATE_WAIT_FOR_DCD, |
| USB_CHG_STATE_DCD_DONE, |
| USB_CHG_STATE_PRIMARY_DONE, |
| USB_CHG_STATE_SECONDARY_DONE, |
| USB_CHG_STATE_DETECTED, |
| }; |
| |
| /** |
| * USB charger types |
| * |
| * USB_INVALID_CHARGER Invalid USB charger. |
| * USB_SDP_CHARGER Standard downstream port. Refers to a downstream port |
| * on USB2.0 compliant host/hub. |
| * USB_DCP_CHARGER Dedicated charger port (AC charger/ Wall charger). |
| * USB_CDP_CHARGER Charging downstream port. Enumeration can happen and |
| * IDEV_CHG_MAX can be drawn irrespective of USB state. |
| * USB_ACA_A_CHARGER B-device is connected on accessory port with charger |
| * connected on charging port. This configuration allows |
| * charging in host mode. |
| * USB_ACA_B_CHARGER No device (or A-device without VBUS) is connected on |
| * accessory port with charger connected on charging port. |
| * USB_ACA_C_CHARGER A-device (with VBUS) is connected on |
| * accessory port with charger connected on charging port. |
| * USB_ACA_DOCK_CHARGER A docking station that has one upstream port and one |
| * or more downstream ports. Capable of supplying |
| * IDEV_CHG_MAX irrespective of devices connected on |
| * accessory ports. |
| */ |
| enum usb_chg_type { |
| USB_INVALID_CHARGER = 0, |
| USB_SDP_CHARGER, |
| USB_DCP_CHARGER, |
| USB_CDP_CHARGER, |
| USB_ACA_A_CHARGER, |
| USB_ACA_B_CHARGER, |
| USB_ACA_C_CHARGER, |
| USB_ACA_DOCK_CHARGER, |
| }; |
| |
| /** |
| * SPS Pipes direction. |
| * |
| * USB_TO_PEER_PERIPHERAL USB (as Producer) to other |
| * peer peripheral. |
| * PEER_PERIPHERAL_TO_USB Other Peripheral to |
| * USB (as consumer). |
| */ |
| enum usb_bam_pipe_dir { |
| USB_TO_PEER_PERIPHERAL, |
| PEER_PERIPHERAL_TO_USB, |
| }; |
| |
| /** |
| * struct msm_otg_platform_data - platform device data |
| * for msm_otg driver. |
| * @phy_init_seq: PHY configuration sequence. val, reg pairs |
| * terminated by -1. |
| * @vbus_power: VBUS power on/off routine. |
| * @power_budget: VBUS power budget in mA (0 will be treated as 500mA). |
| * @mode: Supported mode (OTG/peripheral/host). |
| * @otg_control: OTG switch controlled by user/Id pin |
| * @default_mode: Default operational mode. Applicable only if |
| * OTG switch is controller by user. |
| * @pclk_src_name: pclk is derived from ebi1_usb_clk in case of 7x27 and 8k |
| * dfab_usb_hs_clk in case of 8660 and 8960. |
| * @pmic_id_irq: IRQ number assigned for PMIC USB ID line. |
| * @mhl_enable: indicates MHL connector or not. |
| * @disable_reset_on_disconnect: perform USB PHY and LINK reset |
| * on USB cable disconnection. |
| * @swfi_latency: miminum latency to allow swfi. |
| */ |
| struct msm_otg_platform_data { |
| int *phy_init_seq; |
| void (*vbus_power)(bool on); |
| unsigned power_budget; |
| enum usb_mode_type mode; |
| enum otg_control_type otg_control; |
| enum usb_mode_type default_mode; |
| enum msm_usb_phy_type phy_type; |
| void (*setup_gpio)(enum usb_otg_state state); |
| const char *pclk_src_name; |
| int pmic_id_irq; |
| bool mhl_enable; |
| bool disable_reset_on_disconnect; |
| u32 swfi_latency; |
| }; |
| |
| /** |
| * struct msm_otg: OTG driver data. Shared by HCD and DCD. |
| * @otg: USB OTG Transceiver structure. |
| * @pdata: otg device platform data. |
| * @irq: IRQ number assigned for HSUSB controller. |
| * @clk: clock struct of usb_hs_clk. |
| * @pclk: clock struct of usb_hs_pclk. |
| * @pclk_src: pclk source for voting. |
| * @phy_reset_clk: clock struct of usb_phy_clk. |
| * @core_clk: clock struct of usb_hs_core_clk. |
| * @system_clk: clock struct of usb_system_clk. |
| * @regs: ioremapped register base address. |
| * @inputs: OTG state machine inputs(Id, SessValid etc). |
| * @sm_work: OTG state machine work. |
| * @in_lpm: indicates low power mode (LPM) state. |
| * @async_int: Async interrupt arrived. |
| * @cur_power: The amount of mA available from downstream port. |
| * @chg_work: Charger detection work. |
| * @chg_state: The state of charger detection process. |
| * @chg_type: The type of charger attached. |
| * @dcd_retires: The retry count used to track Data contact |
| * detection process. |
| * @wlock: Wake lock struct to prevent system suspend when |
| * USB is active. |
| * @usbdev_nb: The notifier block used to know about the B-device |
| * connected. Useful only when ACA_A charger is |
| * connected. |
| * @mA_port: The amount of current drawn by the attached B-device. |
| * @pm_qos_req_dma: miminum DMA latency to vote against idle power |
| collapse when cable is connected. |
| * @id_timer: The timer used for polling ID line to detect ACA states. |
| * @xo_handle: TCXO buffer handle |
| */ |
| struct msm_otg { |
| struct otg_transceiver otg; |
| struct msm_otg_platform_data *pdata; |
| int irq; |
| struct clk *clk; |
| struct clk *pclk; |
| struct clk *pclk_src; |
| struct clk *phy_reset_clk; |
| struct clk *core_clk; |
| struct clk *system_clk; |
| void __iomem *regs; |
| #define ID 0 |
| #define B_SESS_VLD 1 |
| #define ID_A 2 |
| #define ID_B 3 |
| #define ID_C 4 |
| unsigned long inputs; |
| struct work_struct sm_work; |
| atomic_t in_lpm; |
| int async_int; |
| unsigned cur_power; |
| struct delayed_work chg_work; |
| enum usb_chg_state chg_state; |
| enum usb_chg_type chg_type; |
| u8 dcd_retries; |
| struct wake_lock wlock; |
| struct notifier_block usbdev_nb; |
| unsigned mA_port; |
| struct timer_list id_timer; |
| unsigned long caps; |
| struct msm_xo_voter *xo_handle; |
| /* |
| * Allowing PHY power collpase turns off the HSUSB 3.3v and 1.8v |
| * analog regulators while going to low power mode. |
| * Currently only 8960(28nm PHY) has the support to allowing PHY |
| * power collapse since it doesn't have leakage currents while |
| * turning off the power rails. |
| */ |
| #define ALLOW_PHY_POWER_COLLAPSE BIT(0) |
| /* |
| * Allow PHY RETENTION mode before turning off the digital |
| * voltage regulator(VDDCX). |
| */ |
| #define ALLOW_PHY_RETENTION BIT(1) |
| /* |
| * Disable the OTG comparators to save more power |
| * if depends on PMIC for VBUS and ID interrupts. |
| */ |
| #define ALLOW_PHY_COMP_DISABLE BIT(2) |
| unsigned long lpm_flags; |
| #define PHY_PWR_COLLAPSED BIT(0) |
| #define PHY_RETENTIONED BIT(1) |
| #define PHY_OTG_COMP_DISABLED BIT(2) |
| struct pm_qos_request_list pm_qos_req_dma; |
| int reset_counter; |
| }; |
| |
| struct msm_hsic_host_platform_data { |
| unsigned strobe; |
| unsigned data; |
| unsigned hub_reset; |
| }; |
| |
| struct usb_bam_pipe_connect { |
| u32 src_phy_addr; |
| int src_pipe_index; |
| u32 dst_phy_addr; |
| int dst_pipe_index; |
| u32 data_fifo_base_offset; |
| u32 data_fifo_size; |
| u32 desc_fifo_base_offset; |
| u32 desc_fifo_size; |
| }; |
| |
| struct msm_usb_bam_platform_data { |
| struct usb_bam_pipe_connect *connections; |
| unsigned long usb_bam_phy_base; |
| unsigned long usb_bam_phy_size; |
| int usb_bam_num_pipes; |
| }; |
| #endif |