Edit File: msm_serial_hs.h
/* * Copyright (C) 2008 Google, Inc. * Author: Nick Pelly <npelly@google.com> * * 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_SERIAL_HS_H #define __ASM_ARCH_MSM_SERIAL_HS_H #include <linux/serial_core.h> /* API to request the uart clock off or on for low power management * Clients should call request_clock_off() when no uart data is expected, * and must call request_clock_on() before any further uart data can be * received. */ extern void msm_hs_request_clock_off(struct uart_port *uport); extern void msm_hs_request_clock_on(struct uart_port *uport); /** * struct msm_serial_hs_platform_data * @rx_wakeup_irq: Rx activity irq * @rx_to_inject: extra character to be inserted to Rx tty on wakeup * @inject_rx: 1 = insert rx_to_inject. 0 = do not insert extra character * @exit_lpm_cb: function called before every Tx transaction * * This is an optional structure required for UART Rx GPIO IRQ based * wakeup from low power state. UART wakeup can be triggered by RX activity * (using a wakeup GPIO on the UART RX pin). This should only be used if * there is not a wakeup GPIO on the UART CTS, and the first RX byte is * known (eg., with the Bluetooth Texas Instruments HCILL protocol), * since the first RX byte will always be lost. RTS will be asserted even * while the UART is clocked off in this mode of operation. */ struct msm_serial_hs_platform_data { int rx_wakeup_irq; unsigned char inject_rx_on_wakeup; char rx_to_inject; void (*exit_lpm_cb)(struct uart_port *); }; #endif