diff options
Diffstat (limited to 'drivers/misc/modem_if_u1/modem_modemctl_device_cbp71.c')
| -rw-r--r-- | drivers/misc/modem_if_u1/modem_modemctl_device_cbp71.c | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/drivers/misc/modem_if_u1/modem_modemctl_device_cbp71.c b/drivers/misc/modem_if_u1/modem_modemctl_device_cbp71.c deleted file mode 100644 index 28f2ce7..0000000 --- a/drivers/misc/modem_if_u1/modem_modemctl_device_cbp71.c +++ /dev/null @@ -1,233 +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_data/modem.h> -#include "modem_prj.h" -#include "modem_link_device_dpram.h" - -#define PIF_TIMEOUT (180 * HZ) -#define DPRAM_INIT_TIMEOUT (15 * HZ) - -static int cbp71_on(struct modem_ctl *mc) -{ - int RetVal = 0; - int dpram_init_RetVal = 0; - struct link_device *ld = get_current_link(mc->iod); - struct dpram_link_device *dpram_ld = to_dpram_link_device(ld); - - mif_info("cbp71_on()\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); - msleep(600); - gpio_set_value(mc->gpio_cp_reset, 1); - msleep(100); - gpio_set_value(mc->gpio_cp_off, 0); - msleep(300); - - gpio_set_value(mc->gpio_pda_active, 1); - - mc->iod->modem_state_changed(mc->iod, STATE_BOOTING); - - /* Wait here until the PHONE is up. - * Waiting as the this called from IOCTL->UM thread */ - mif_debug("power control waiting for INT_MASK_CMD_PIF_INIT_DONE\n"); - - /* 1HZ = 1 clock tick, 100 default */ - dpram_ld->clear_interrupt(dpram_ld); - - dpram_init_RetVal = - wait_event_interruptible_timeout( - dpram_ld->dpram_init_cmd_wait_q, - dpram_ld->dpram_init_cmd_wait_condition, - DPRAM_INIT_TIMEOUT); - - if (!dpram_init_RetVal) { - /*RetVal will be 0 on timeout, non zero if interrupted */ - mif_err("INIT_START cmd was not arrived.\n"); - mif_err("init_cmd_wait_condition is 0 and wait timeout happend\n"); - return -ENXIO; - } - - RetVal = wait_event_interruptible_timeout( - dpram_ld->modem_pif_init_done_wait_q, - dpram_ld->modem_pif_init_wait_condition, - PIF_TIMEOUT); - - if (!RetVal) { - /*RetVal will be 0 on timeout, non zero if interrupted */ - mif_err("PIF init failed\n"); - mif_err("pif_init_wait_condition is 0 and wait timeout happend\n"); - return -ENXIO; - } - - mif_debug("complete cbp71_on\n"); - - mc->iod->modem_state_changed(mc->iod, STATE_ONLINE); - - return 0; -} - -static int cbp71_off(struct modem_ctl *mc) -{ - mif_debug("cbp71_off()\n"); - - if (!mc->gpio_cp_off || !mc->gpio_cp_reset) { - mif_err("no gpio data\n"); - return -ENXIO; - } - - mif_err("Phone power Off. - do nothing\n"); - - mc->iod->modem_state_changed(mc->iod, STATE_OFFLINE); - - return 0; -} - -static int cbp71_reset(struct modem_ctl *mc) -{ - int ret = 0; - - mif_debug("cbp71_reset()\n"); - - ret = cbp71_off(mc); - if (ret) - return -ENXIO; - - msleep(100); - - ret = cbp71_on(mc); - if (ret) - return -ENXIO; - - return 0; -} - -static int cbp71_boot_on(struct modem_ctl *mc) -{ - mif_debug("cbp71_boot_on()\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->iod->modem_state_changed(mc->iod, STATE_BOOTING); - - return 0; -} - -static int cbp71_boot_off(struct modem_ctl *mc) -{ - mif_debug("cbp71_boot_off()\n"); - return 0; -} - -static irqreturn_t phone_active_irq_handler(int irq, void *_mc) -{ - int phone_reset = 0; - int phone_active_value = 0; - int phone_state = 0; - struct modem_ctl *mc = (struct modem_ctl *)_mc; - - if (!mc->gpio_cp_reset || !mc->gpio_phone_active) { - mif_err("no gpio data\n"); - return IRQ_HANDLED; - } - - phone_reset = gpio_get_value(mc->gpio_cp_reset); - phone_active_value = gpio_get_value(mc->gpio_phone_active); - - if (phone_reset && phone_active_value) - phone_state = STATE_ONLINE; - else if (phone_reset && !phone_active_value) - phone_state = STATE_CRASH_EXIT; - 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_value) - 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_active_irq_handler : phone_state=%d\n", phone_state); - - return IRQ_HANDLED; -} - -static void cbp71_get_ops(struct modem_ctl *mc) -{ - mc->ops.modem_on = cbp71_on; - mc->ops.modem_off = cbp71_off; - mc->ops.modem_reset = cbp71_reset; - mc->ops.modem_boot_on = cbp71_boot_on; - mc->ops.modem_boot_off = cbp71_boot_off; -} - -int cbp71_init_modemctl_device(struct modem_ctl *mc, - struct modem_data *pdata) -{ - int ret = 0; - struct platform_device *pdev; - - mc->gpio_cp_on = pdata->gpio_cp_on; - 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; - mc->gpio_cp_off = pdata->gpio_cp_off; - - pdev = to_platform_device(mc->dev); - mc->irq_phone_active = platform_get_irq(pdev, 0); - - cbp71_get_ops(mc); - - /*TODO: check*/ - ret = request_irq(mc->irq_phone_active, phone_active_irq_handler, - IRQF_TRIGGER_HIGH, "phone_active", mc); - if (ret) { - mif_err("failed to irq_phone_active request_irq: %d\n" - , ret); - return ret; - } - - ret = enable_irq_wake(mc->irq_phone_active); - if (ret) - mif_err("failed to enable_irq_wake:%d\n", ret); - - return ret; -} |