| /* | |
| * 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 |