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/*
* arch/arm/mach-omap2/omap-rfkill-ste.c
*
* OMAP driver file for rfkill ST-E modem driver
*
* Copyright (C) 2012 Texas Instruments
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/rfkill.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <plat/omap_hwmod.h>
#include "mux.h"
#include "omap-rfkill-ste.h"
enum {
RFKILL_STE_P57XX,
RFKILL_STE_G74XX,
};
struct omap_rfkill_ste_data {
struct rfkill *rfkdev;
struct omap_hwmod_mux_info *omap_pads;
};
static int omap_rfkill_ste_set_block(void *data, bool blocked)
{
struct platform_device *pdev = data;
dev_info(&pdev->dev, "%s: %d\n", __func__, blocked);
return 0;
}
static const struct rfkill_ops omap_rfkill_ste_ops = {
.set_block = omap_rfkill_ste_set_block,
};
static int omap_rfkill_ste_probe(struct platform_device *pdev)
{
struct omap_rfkill_ste_data *rfkill;
struct omap_rfkill_ste_platform_data *pdata
= dev_get_platdata(&pdev->dev);
struct rfkill *rfkdev;
int ret = 0;
dev_dbg(&pdev->dev, "%s\n", __func__);
if (!pdata) {
dev_err(&pdev->dev,
"%s: no platform data specified\n", __func__);
ret = -EINVAL;
goto error0;
}
rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
if (!rfkill) {
dev_err(&pdev->dev,
"%s: no memory to alloc driver data\n", __func__);
ret = -ENOMEM;
goto error0;
}
platform_set_drvdata(pdev, rfkill);
if (pdata->omap_pads)
rfkill->omap_pads = omap_hwmod_mux_init(pdata->omap_pads,
pdata->omap_pads_len);
/* WWAN rfkill device registration */
rfkill->rfkdev = rfkill_alloc(pdev->name,
&pdev->dev,
RFKILL_TYPE_WWAN,
&omap_rfkill_ste_ops,
pdev);
rfkdev = rfkill->rfkdev;
if (!rfkdev) {
dev_err(&pdev->dev,
"%s: Error allocating modem rfkdev\n", __func__);
ret = -ENOMEM;
goto error1;
}
/* S/W blocked by default, persistent */
rfkill_init_sw_state(rfkdev, 1);
ret = rfkill_register(rfkdev);
if (ret) {
dev_err(&pdev->dev,
"%s: Error registering modem rfkdev: %d\n",
__func__, ret);
ret = -EINVAL;
goto error2;
}
/* hardware unblocked */
if (rfkill->rfkdev)
rfkill_set_hw_state(rfkdev, 0);
return 0;
error2:
rfkill_destroy(rfkdev);
error1:
kfree(rfkill);
error0:
return ret;
}
static int omap_rfkill_ste_remove(struct platform_device *pdev)
{
struct omap_rfkill_ste_data *rfkill = platform_get_drvdata(pdev);
dev_dbg(&pdev->dev, "%s\n", __func__);
rfkill_unregister(rfkill->rfkdev);
rfkill_destroy(rfkill->rfkdev);
kfree(rfkill);
return 0;
}
/* List of device names supported by this driver */
static struct platform_device_id omap_rfkill_ste_id_table[] = {
{"ste-p5780", RFKILL_STE_P57XX},
{"ste-g7400", RFKILL_STE_G74XX},
{},
};
MODULE_DEVICE_TABLE(platform, omap_rfkill_ste_id_table);
static struct platform_driver omap_rfkill_ste_driver = {
.probe = omap_rfkill_ste_probe,
.remove = __devexit_p(omap_rfkill_ste_remove),
.driver = {
.name = "omap_ste_rfkill",
.owner = THIS_MODULE,
},
.id_table = omap_rfkill_ste_id_table,
};
static int __init omap_rfkill_ste_init(void)
{
pr_debug("%s\n", __func__);
return platform_driver_register(&omap_rfkill_ste_driver);
}
static void __exit omap_rfkill_ste_exit(void)
{
pr_debug("%s\n", __func__);
platform_driver_unregister(&omap_rfkill_ste_driver);
}
module_init(omap_rfkill_ste_init);
module_exit(omap_rfkill_ste_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Texas Instruments Inc");
MODULE_DESCRIPTION("OMAP RFKILL driver for ST-E modem");
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