diff options
Diffstat (limited to 'drivers/misc/modem_if_u1/modem_modemctl_device_cbp72.c')
| -rw-r--r-- | drivers/misc/modem_if_u1/modem_modemctl_device_cbp72.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/drivers/misc/modem_if_u1/modem_modemctl_device_cbp72.c b/drivers/misc/modem_if_u1/modem_modemctl_device_cbp72.c deleted file mode 100644 index 2617be8..0000000 --- a/drivers/misc/modem_if_u1/modem_modemctl_device_cbp72.c +++ /dev/null @@ -1,273 +0,0 @@ -/* /linux/drivers/misc/modem_if/modem_modemctl_device_cbp7.1.c - * - * Copyright (C) 2010 Google, Inc. - * Copyright (C) 2010 Samsung Electronics. - * - * 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. - * - */ - -#include <linux/init.h> - -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/gpio.h> -#include <linux/delay.h> -#include <linux/wait.h> -#include <linux/sched.h> -#include <linux/platform_device.h> - -#include <linux/platform_data/modem.h> -#include "modem_prj.h" -#include "modem_link_device_dpram.h" - -#define PIF_TIMEOUT (180 * HZ) -#define DPRAM_INIT_TIMEOUT (30 * HZ) - - -static irqreturn_t phone_active_handler(int irq, void *arg) -{ - struct modem_ctl *mc = (struct modem_ctl *)arg; - int phone_reset = gpio_get_value(mc->gpio_cp_reset); - int phone_active = gpio_get_value(mc->gpio_phone_active); - int phone_state = mc->phone_state; - - mif_info("state = %d, phone_reset = %d, phone_active = %d\n", - phone_state, phone_reset, phone_active); - - if (phone_reset && phone_active) { - if (mc->phone_state == STATE_BOOTING) { - phone_state = STATE_ONLINE; - mc->bootd->modem_state_changed(mc->bootd, phone_state); - } - } else if (phone_reset && !phone_active) { - if (mc->phone_state == STATE_ONLINE) { - phone_state = STATE_CRASH_EXIT; - mc->bootd->modem_state_changed(mc->bootd, phone_state); - } - } else { - phone_state = STATE_OFFLINE; - if (mc->bootd && mc->bootd->modem_state_changed) - mc->bootd->modem_state_changed(mc->bootd, phone_state); - } - - if (phone_active) - irq_set_irq_type(mc->irq_phone_active, IRQ_TYPE_LEVEL_LOW); - else - irq_set_irq_type(mc->irq_phone_active, IRQ_TYPE_LEVEL_HIGH); - - mif_info("phone_state = %d\n", phone_state); - - return IRQ_HANDLED; -} - -static int cbp72_on(struct modem_ctl *mc) -{ - mif_info("start!!!\n"); - - /* prevent sleep during bootloader downloading */ - if (!wake_lock_active(&mc->mc_wake_lock)) - wake_lock(&mc->mc_wake_lock); - - gpio_set_value(mc->gpio_cp_on, 0); - if (mc->gpio_cp_off) - gpio_set_value(mc->gpio_cp_off, 1); - gpio_set_value(mc->gpio_cp_reset, 0); - - msleep(500); - - gpio_set_value(mc->gpio_cp_on, 1); - if (mc->gpio_cp_off) - gpio_set_value(mc->gpio_cp_off, 0); - - msleep(100); - - gpio_set_value(mc->gpio_cp_reset, 1); - - msleep(300); - - gpio_set_value(mc->gpio_pda_active, 1); - - mc->bootd->modem_state_changed(mc->bootd, STATE_BOOTING); - - mif_info("complete!!!\n"); - - return 0; -} - -static int cbp72_off(struct modem_ctl *mc) -{ - mif_info("cbp72_off()\n"); - - if (!mc->gpio_cp_off || !mc->gpio_cp_reset) { - mif_err("no gpio data\n"); - return -ENXIO; - } - - gpio_set_value(mc->gpio_cp_reset, 0); - gpio_set_value(mc->gpio_cp_on, 0); - gpio_set_value(mc->gpio_cp_off, 1); - - mc->bootd->modem_state_changed(mc->bootd, STATE_OFFLINE); - - return 0; -} - -static int cbp72_reset(struct modem_ctl *mc) -{ - int ret = 0; - - mif_debug("cbp72_reset()\n"); - - ret = cbp72_off(mc); - if (ret) - return -ENXIO; - - msleep(100); - - ret = cbp72_on(mc); - if (ret) - return -ENXIO; - - return 0; -} - -static int cbp72_boot_on(struct modem_ctl *mc) -{ - mif_info("\n"); - - if (!mc->gpio_cp_reset) { - mif_err("no gpio data\n"); - return -ENXIO; - } - - gpio_set_value(mc->gpio_cp_reset, 0); - - msleep(600); - - gpio_set_value(mc->gpio_cp_reset, 1); - - mc->bootd->modem_state_changed(mc->bootd, STATE_BOOTING); - - return 0; -} - -static int cbp72_boot_off(struct modem_ctl *mc) -{ - int ret; - struct link_device *ld = get_current_link(mc->bootd); - struct dpram_link_device *dpld = to_dpram_link_device(ld); - mif_debug("\n"); - /* Wait here until the PHONE is up. - * Waiting as the this called from IOCTL->UM thread */ - mif_info("Waiting for INT_CMD_PHONE_START\n"); - ret = wait_for_completion_interruptible_timeout( - &dpld->dpram_init_cmd, DPRAM_INIT_TIMEOUT); - if (!ret) { - /* ret == 0 on timeout, ret < 0 if interrupted */ - mif_err("Timeout!!! (PHONE_START was not arrived.)\n"); - return -ENXIO; - } - - mif_info("Waiting for INT_CMD_PIF_INIT_DONE\n"); - ret = wait_for_completion_interruptible_timeout( - &dpld->modem_pif_init_done, PIF_TIMEOUT); - if (!ret) { - mif_err("Timeout!!! (PIF_INIT_DONE was not arrived.)\n"); - return -ENXIO; - } - mc->bootd->modem_state_changed(mc->bootd, STATE_ONLINE); - - wake_unlock(&mc->mc_wake_lock); - - return 0; -} - -static int cbp72_force_crash_exit(struct modem_ctl *mc) -{ - struct link_device *ld = get_current_link(mc->bootd); - - mif_err("device = %s\n", mc->bootd->name); - - /* Make DUMP start */ - ld->force_dump(ld, mc->bootd); - - msleep_interruptible(1000); - - mc->bootd->modem_state_changed(mc->bootd, STATE_CRASH_EXIT); - - return 0; -} - -static void cbp72_get_ops(struct modem_ctl *mc) -{ - mc->ops.modem_on = cbp72_on; - mc->ops.modem_off = cbp72_off; - mc->ops.modem_reset = cbp72_reset; - mc->ops.modem_boot_on = cbp72_boot_on; - mc->ops.modem_boot_off = cbp72_boot_off; - mc->ops.modem_force_crash_exit = cbp72_force_crash_exit; -} - -int cbp72_init_modemctl_device(struct modem_ctl *mc, struct modem_data *pdata) -{ - int ret = 0; - int irq = 0; - unsigned long flag = 0; - struct platform_device *pdev = NULL; - - mc->gpio_cp_on = pdata->gpio_cp_on; - mc->gpio_cp_off = pdata->gpio_cp_off; - mc->gpio_reset_req_n = pdata->gpio_reset_req_n; - mc->gpio_cp_reset = pdata->gpio_cp_reset; - mc->gpio_pda_active = pdata->gpio_pda_active; - mc->gpio_phone_active = pdata->gpio_phone_active; - mc->gpio_cp_dump_int = pdata->gpio_cp_dump_int; - mc->gpio_flm_uart_sel = pdata->gpio_flm_uart_sel; - mc->gpio_cp_warm_reset = pdata->gpio_cp_warm_reset; - - if (!mc->gpio_cp_on || !mc->gpio_cp_reset || !mc->gpio_phone_active) { - mif_err("no GPIO data\n"); - return -ENXIO; - } - - gpio_set_value(mc->gpio_cp_reset, 0); - if (mc->gpio_cp_off) - gpio_set_value(mc->gpio_cp_off, 1); - gpio_set_value(mc->gpio_cp_on, 0); - - cbp72_get_ops(mc); - - pdev = to_platform_device(mc->dev); - mc->irq_phone_active = platform_get_irq_byname(pdev, "cp_active_irq"); - if (!mc->irq_phone_active) { - mif_err("get irq fail\n"); - return -1; - } - - irq = mc->irq_phone_active; - mif_info("PHONE_ACTIVE IRQ# = %d\n", irq); - - flag = IRQF_TRIGGER_HIGH; - ret = request_irq(irq, phone_active_handler, flag, "cbp_active", mc); - if (ret) { - mif_err("request_irq fail (%d)\n", ret); - return ret; - } - - wake_lock_init(&mc->mc_wake_lock, WAKE_LOCK_SUSPEND, "cbp72_wake_lock"); - - ret = enable_irq_wake(irq); - if (ret) - mif_err("enable_irq_wake fail (%d)\n", ret); - - return 0; -} - |