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path: root/drivers/misc/modem_if_na/modem_modemctl_device_cmc220.c
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Diffstat (limited to 'drivers/misc/modem_if_na/modem_modemctl_device_cmc220.c')
-rw-r--r--drivers/misc/modem_if_na/modem_modemctl_device_cmc220.c254
1 files changed, 0 insertions, 254 deletions
diff --git a/drivers/misc/modem_if_na/modem_modemctl_device_cmc220.c b/drivers/misc/modem_if_na/modem_modemctl_device_cmc220.c
deleted file mode 100644
index 48639b8..0000000
--- a/drivers/misc/modem_if_na/modem_modemctl_device_cmc220.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/* /linux/drivers/misc/modem_if/modem_modemctl_device_cmc220.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/platform_device.h>
-
-#include <linux/platform_data/modem_na.h>
-#include "modem_prj.h"
-#include "modem_link_device_usb.h"
-
-static int cmc220_on(struct modem_ctl *mc)
-{
- pr_info("[MODEM_IF] %s()\n", __func__);
-
- if (!mc->gpio_cp_off || !mc->gpio_cp_on || !mc->gpio_cp_reset) {
- pr_err("[MODEM_IF] no gpio data\n");
- return -ENXIO;
- }
-
- gpio_set_value(mc->gpio_cp_on, 1);
- msleep(300);
- gpio_set_value(mc->gpio_cp_reset, 1);
- msleep(100);
- gpio_set_value(mc->gpio_cp_off, 0);
- msleep(300);
- mc->phone_state = STATE_BOOTING;
- return 0;
-}
-
-static int cmc220_off(struct modem_ctl *mc)
-{
- pr_info("[MODEM_IF] %s()\n", __func__);
-
- if (!mc->gpio_cp_off || !mc->gpio_cp_on || !mc->gpio_cp_reset) {
- pr_err("[MODEM_IF] no gpio data\n");
- return -ENXIO;
- }
-
- gpio_set_value(mc->gpio_cp_on, 0);
- msleep(100);
- gpio_set_value(mc->gpio_cp_off, 1);
- msleep(100);
- gpio_set_value(mc->gpio_cp_reset, 0);
-
- mc->phone_state = STATE_OFFLINE;
-
- return 0;
-}
-
-static int cmc220_force_crash_exit(struct modem_ctl *mc)
-{
- pr_info("[MODEM_IF] %s: # %d\n", __func__, ++(mc->crash_cnt));
-
- mc->phone_state = STATE_CRASH_EXIT;/* DUMP START */
-
- if (mc->iod && mc->iod->modem_state_changed)
- mc->iod->modem_state_changed(mc->iod, mc->phone_state);
-
- return 0;
-}
-
-static int cmc220_dump_reset(struct modem_ctl *mc)
-{
- pr_info("[MODEM_IF] %s()\n", __func__);
-
- if (!mc->gpio_cp_reset)
- return -ENXIO;
-
- gpio_set_value(mc->gpio_host_active, 0);
- mc->cpcrash_flag = 1;
-
- gpio_set_value(mc->gpio_cp_reset, 0);
- msleep(100);
- gpio_set_value(mc->gpio_cp_reset, 1);
- msleep(300);
-
- mc->phone_state = STATE_BOOTING;
-
- return 0;
-}
-
-static int cmc220_reset(struct modem_ctl *mc)
-{
- pr_info("[MODEM_IF] %s()\n", __func__);
-
- if (!mc->gpio_cp_reset)
- return -ENXIO;
-
- if (cmc220_off(mc))
- return -ENXIO;
- msleep(100);
- if (cmc220_on(mc))
- return -ENXIO;
-
- mc->phone_state = STATE_BOOTING;
-
- return 0;
-}
-
-static int cmc220_boot_on(struct modem_ctl *mc)
-{
- pr_info("[MODEM_IF] %s()\n", __func__);
- return 0;
-}
-
-static int cmc220_boot_off(struct modem_ctl *mc)
-{
- pr_info("[MODEM_IF] %s()\n", __func__);
- return 0;
-}
-
-static int cmc220_get_active(struct modem_ctl *mc)
-{
- if (!mc->gpio_phone_active || !mc->gpio_cp_reset)
- return -ENXIO;
-
- pr_debug("cp %d phone %d\n",
- gpio_get_value(mc->gpio_cp_reset),
- gpio_get_value(mc->gpio_phone_active));
-
- if (gpio_get_value(mc->gpio_cp_reset))
- return gpio_get_value(mc->gpio_phone_active);
-
- return 0;
-}
-
-
-static void mc_work(struct work_struct *work_arg)
-{
-
- struct modem_ctl *mc = container_of(work_arg, struct modem_ctl,
- dwork.work);
-
- int phone_active;
-
- phone_active = cmc220_get_active(mc);
- if (phone_active < 0) {
- pr_err("[MODEM_IF] gpio not initialized\n");
- return;
- }
-
- switch (mc->phone_state) {
- case STATE_CRASH_EXIT:
- case STATE_BOOTING:
- case STATE_LOADER_DONE:
- if (phone_active) {
- if (mc->cpcrash_flag) {
- pr_info("[MODEM_IF] LTE DUMP END!!\n");
- mc->cpcrash_flag = 0;
- }
- }
- break;
- case STATE_ONLINE:
- if (!phone_active) {
- pr_info("[MODEM_IF] LTE CRASHED!! LTE DUMP START!!\n");
- mc->phone_state = STATE_CRASH_EXIT;
- if (mc->iod && mc->iod->modem_state_changed)
- mc->iod->modem_state_changed(mc->iod,
- mc->phone_state);
- }
- break;
- default:
- mc->phone_state = STATE_OFFLINE;
- pr_err("[MODEM_IF], phone_status changed to invalid!!\n");
- break;
- }
-}
-
-
-
-static irqreturn_t phone_active_irq_handler(int irq, void *_mc)
-{
- struct modem_ctl *mc = (struct modem_ctl *)_mc;
-
- schedule_delayed_work(&mc->dwork, 20);
-
- return IRQ_HANDLED;
-}
-
-static void cmc220_get_ops(struct modem_ctl *mc)
-{
- mc->ops.modem_on = cmc220_on;
- mc->ops.modem_off = cmc220_off;
- mc->ops.modem_reset = cmc220_reset;
- mc->ops.modem_boot_on = cmc220_boot_on;
- mc->ops.modem_boot_off = cmc220_boot_off;
- mc->ops.modem_force_crash_exit = cmc220_force_crash_exit;
- mc->ops.modem_dump_reset = cmc220_dump_reset;
-}
-
-int cmc220_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;
- mc->gpio_slave_wakeup = pdata->gpio_slave_wakeup;
- mc->gpio_host_active = pdata->gpio_host_active;
- mc->gpio_host_wakeup = pdata->gpio_host_wakeup;
-
- pdev = to_platform_device(mc->dev);
- mc->irq_phone_active = gpio_to_irq(mc->gpio_phone_active);
-
- cmc220_get_ops(mc);
-
- dev_set_drvdata(mc->dev, mc);
-
- INIT_DELAYED_WORK(&mc->dwork, mc_work);
-
- ret = request_irq(mc->irq_phone_active, phone_active_irq_handler,
- IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
- "lte_phone_active", mc);
- if (ret) {
- pr_err("[MODEM_IF] Failed to allocate an interrupt(%d)\n",
- mc->irq_phone_active);
- goto irq_fail;
- }
- mc->irq[0] = mc->irq_phone_active;
- enable_irq_wake(mc->irq_phone_active);
- /*disable_irq(mc->irq_phone_active);*/
-
- return ret;
-
-irq_fail:
- kfree(mc);
- return ret;
-}
generated by cgit v1.1 at 2024-06-07 10:02:35 +0000