diff options
Diffstat (limited to 'drivers/misc/modem_if/modem_modemctl_device_qsc6085.c')
| -rw-r--r-- | drivers/misc/modem_if/modem_modemctl_device_qsc6085.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/drivers/misc/modem_if/modem_modemctl_device_qsc6085.c b/drivers/misc/modem_if/modem_modemctl_device_qsc6085.c deleted file mode 100644 index 6078916..0000000 --- a/drivers/misc/modem_if/modem_modemctl_device_qsc6085.c +++ /dev/null @@ -1,218 +0,0 @@ -/* /linux/drivers/misc/modem_if/modem_modemctl_device_qsc6085.c - * - * 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" -#include "modem_utils.h" - -#define IDPRAM_NORMAL_BOOT_MAGIC 0x4D4E - -static irqreturn_t phone_active_irq_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; - - pr_info("MIF: <%s> state = %d, phone_reset = %d, phone_active = %d\n", - __func__, phone_state, phone_reset, phone_active); - - if (phone_reset && phone_active) { - phone_state = STATE_ONLINE; - if (mc->phone_state != STATE_BOOTING) - mc->iod->modem_state_changed(mc->iod, phone_state); - } else if (phone_reset && !phone_active) { - if (mc->phone_state == STATE_ONLINE) { - phone_state = STATE_CRASH_EXIT; - mc->iod->modem_state_changed(mc->iod, phone_state); - } - } else { - phone_state = STATE_OFFLINE; - if (mc->iod && mc->iod->modem_state_changed) - mc->iod->modem_state_changed(mc->iod, 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); - - pr_info("MIF: <%s> phone_state = %d\n", __func__, phone_state); - - return IRQ_HANDLED; -} - -static void set_idpram_boot_magic(struct dpram_link_device *dpld) -{ - dpld->set_access(dpld, 0); - dpld->set_magic(dpld, IDPRAM_NORMAL_BOOT_MAGIC); - dpld->set_access(dpld, 1); -} - -static int qsc6085_on(struct modem_ctl *mc) -{ - struct link_device *ld = get_current_link(mc->iod); - struct dpram_link_device *dpld = to_dpram_link_device(ld); - - mif_err("+++\n"); - - if (!mc->gpio_cp_on || !mc->gpio_cp_reset) { - mif_err("no gpio_cp_on or no gpio_cp_reset\n"); - return -ENXIO; - } - - set_idpram_boot_magic(dpld); - - mc->iod->modem_state_changed(mc->iod, STATE_BOOTING); - - gpio_set_value(mc->gpio_cp_reset, 1); - gpio_set_value(mc->gpio_cp_on, 0); - - msleep(100); - - gpio_set_value(mc->gpio_cp_on, 1); - - msleep(400); - msleep(400); - msleep(200); - - gpio_set_value(mc->gpio_cp_on, 0); - - mif_err("---\n"); - return 0; -} - -static int qsc6085_off(struct modem_ctl *mc) -{ - int phone_wait_cnt = 0; - - pr_info("MIF: <%s+>\n", __func__); - - if (!mc->gpio_cp_on || !mc->gpio_cp_reset || - !mc->gpio_phone_active) { - pr_err("MIF: <%s> no gpio data\n", __func__); - return -ENXIO; - } - - gpio_set_value(mc->gpio_cp_on, 0); - - /* confirm phone off */ - while (1) { - if (gpio_get_value(mc->gpio_phone_active)) { - pr_err("MIF: <%s> Try to Turn Phone Off by CP_RST\n", - __func__); - gpio_set_value(mc->gpio_cp_reset, 0); - if (phone_wait_cnt > 10) { - pr_emerg("MIF: <%s> OFF Failed\n", __func__); - break; - } - phone_wait_cnt++; - mdelay(100); - } else { - pr_emerg("MIF: <%s> OFF Success\n", __func__); - break; - } - } - - mc->iod->modem_state_changed(mc->iod, STATE_OFFLINE); - - pr_info("MIF: <%s->\n", __func__); - - return 0; -} - -static int qsc6085_reset(struct modem_ctl *mc) -{ - struct link_device *ld = get_current_link(mc->iod); - struct dpram_link_device *dpld = to_dpram_link_device(ld); - - mif_err("+++\n"); - - set_idpram_boot_magic(dpld); - - gpio_set_value(mc->gpio_cp_reset, 0); - msleep(100); - gpio_set_value(mc->gpio_cp_reset, 1); - - mif_err("---\n"); - return 0; -} - -static int qsc6085_modem_dump_reset(struct modem_ctl *mc) -{ - pr_info("MIF: <%s>\n", __func__); - panic("CP Crashed"); -} - -static void qsc6085_get_ops(struct modem_ctl *mc) -{ - mc->ops.modem_on = qsc6085_on; - mc->ops.modem_off = qsc6085_off; - mc->ops.modem_reset = qsc6085_reset; - mc->ops.modem_dump_reset = qsc6085_modem_dump_reset; -} - -int qsc6085_init_modemctl_device(struct modem_ctl *mc, struct modem_data *pdata) -{ - int ret = 0; - unsigned long flag = 0; - - mc->gpio_cp_on = pdata->gpio_cp_on; - 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; - - if (!mc->gpio_cp_on || !mc->gpio_cp_reset || !mc->gpio_phone_active) { - mif_err("no GPIO data\n"); - return -ENXIO; - } - - mc->irq_phone_active = gpio_to_irq(mc->gpio_phone_active); - pr_err("MIF: <%s> PHONE_ACTIVE IRQ# = %d\n", - __func__, mc->irq_phone_active); - - qsc6085_get_ops(mc); - - /*register phone_active_handler*/ - flag = IRQF_TRIGGER_HIGH; - - ret = request_irq(mc->irq_phone_active, - phone_active_irq_handler, - flag, "phone_active", mc); - if (ret) { - pr_err("MIF: failed to irq_phone_active request_irq: %d\n" - , ret); - return ret; - } - - ret = enable_irq_wake(mc->irq_phone_active); - if (ret) { - pr_err("MIF: <%s> failed to enable_irq_wake:%d\n", - __func__, ret); - free_irq(mc->irq_phone_active, mc); - return ret; - } - return ret; -} |