362 lines
7.6 KiB
C
362 lines
7.6 KiB
C
/*
|
|
* Copyright (C) 2009 Google, Inc.
|
|
* Copyright (C) 2009 HTC Corporation.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
/* Control bluetooth power for htcleo platform */
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/module.h>
|
|
#include <linux/device.h>
|
|
#include <linux/rfkill.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/gpio.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
#include "gpio_chip.h"
|
|
#include "proc_comm.h"
|
|
#include "board-htcleo.h"
|
|
|
|
#define HTC_RFKILL_DBG
|
|
#define MAX_BT_SIZE 0x6U
|
|
|
|
static struct rfkill *bt_rfk;
|
|
static const char bt_name[] = "bcm4329";
|
|
static int pre_state;
|
|
|
|
|
|
/* Fix BT address for Leo */
|
|
static unsigned char bt_bd_ram[MAX_BT_SIZE] = {0x50,0xC3,0x00,0x00,0x00,0x00};
|
|
unsigned char *get_bt_bd_ram(void)
|
|
{
|
|
return (bt_bd_ram);
|
|
}
|
|
|
|
|
|
/* bt initial configuration */
|
|
static uint32_t htcleo_bt_init_table[] = {
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_RTS, /* BT_RTS */
|
|
2,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_CTS, /* BT_CTS */
|
|
0,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_RX, /* BT_RX */
|
|
0,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_TX, /* BT_TX */
|
|
2,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_8MA),
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_RESET_N, /* BT_RESET_N */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_4MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_SHUTDOWN_N, /* BT_SHUTDOWN_N */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_4MA),
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_HOST_WAKE, /* BT_HOST_WAKE */
|
|
0,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_4MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_CHIP_WAKE, /* BT_CHIP_WAKE */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_4MA),
|
|
};
|
|
|
|
/* bt on configuration */
|
|
static uint32_t htcleo_bt_on_table[] = {
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_RTS, /* BT_RTS */
|
|
2,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_CTS, /* BT_CTS */
|
|
2,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_RX, /* BT_RX */
|
|
2,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_TX, /* BT_TX */
|
|
2,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_8MA),
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_HOST_WAKE, /* BT_HOST_WAKE */
|
|
0,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_DOWN,
|
|
GPIO_4MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_CHIP_WAKE, /* BT_CHIP_WAKE */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_4MA),
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_RESET_N, /* BT_RESET_N */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_4MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_SHUTDOWN_N, /* BT_SHUTDOWN_N */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_4MA),
|
|
};
|
|
|
|
/* bt off configuration */
|
|
static uint32_t htcleo_bt_off_table[] = {
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_RTS, /* BT_RTS */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_CTS, /* BT_CTS */
|
|
0,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_RX, /* BT_RX */
|
|
0,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_8MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_UART1_TX, /* BT_TX */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_8MA),
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_RESET_N, /* BT_RESET_N */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_4MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_SHUTDOWN_N, /* BT_SHUTDOWN_N */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_4MA),
|
|
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_HOST_WAKE, /* BT_HOST_WAKE */
|
|
0,
|
|
GPIO_INPUT,
|
|
GPIO_PULL_UP,
|
|
GPIO_4MA),
|
|
PCOM_GPIO_CFG(HTCLEO_GPIO_BT_CHIP_WAKE, /* BT_CHIP_WAKE */
|
|
0,
|
|
GPIO_OUTPUT,
|
|
GPIO_NO_PULL,
|
|
GPIO_4MA),
|
|
};
|
|
|
|
static void config_bt_table(uint32_t *table, int len)
|
|
{
|
|
int n;
|
|
unsigned id;
|
|
for (n = 0; n < len; n++) {
|
|
id = table[n];
|
|
msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &id, 0);
|
|
}
|
|
}
|
|
|
|
static void htcleo_config_bt_init(void)
|
|
{
|
|
/* set bt initial configuration*/
|
|
config_bt_table(htcleo_bt_init_table,
|
|
ARRAY_SIZE(htcleo_bt_init_table));
|
|
mdelay(5);
|
|
|
|
/* BT_RESET_N */
|
|
gpio_configure(HTCLEO_GPIO_BT_RESET_N,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_LOW);
|
|
mdelay(2);
|
|
/* BT_SHUTDOWN_N */
|
|
gpio_configure(HTCLEO_GPIO_BT_SHUTDOWN_N,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_LOW);
|
|
mdelay(2);
|
|
|
|
/* BT_CHIP_WAKE */
|
|
gpio_configure(HTCLEO_GPIO_BT_CHIP_WAKE,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_HIGH);
|
|
|
|
}
|
|
|
|
static void htcleo_config_bt_on(void)
|
|
{
|
|
|
|
#ifdef HTC_RFKILL_DBG
|
|
printk(KERN_INFO "-- RK ON --\n");
|
|
#endif
|
|
|
|
/* set bt on configuration*/
|
|
config_bt_table(htcleo_bt_on_table,
|
|
ARRAY_SIZE(htcleo_bt_on_table));
|
|
mdelay(5);
|
|
|
|
/* BT_RESET_N */
|
|
gpio_configure(HTCLEO_GPIO_BT_RESET_N,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_HIGH);
|
|
mdelay(2);
|
|
/* BT_SHUTDOWN_N */
|
|
gpio_configure(HTCLEO_GPIO_BT_SHUTDOWN_N,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_HIGH);
|
|
mdelay(2);
|
|
}
|
|
|
|
static void htcleo_config_bt_off(void)
|
|
{
|
|
#ifdef HTC_RFKILL_DBG
|
|
printk(KERN_INFO "-- RK OFF --\n");
|
|
#endif
|
|
|
|
/* BT_SHUTDOWN_N */
|
|
gpio_configure(HTCLEO_GPIO_BT_SHUTDOWN_N,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_LOW);
|
|
mdelay(2);
|
|
/* BT_RESET_N */
|
|
gpio_configure(HTCLEO_GPIO_BT_RESET_N,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_LOW);
|
|
mdelay(2);
|
|
|
|
/* set bt off configuration*/
|
|
config_bt_table(htcleo_bt_off_table,
|
|
ARRAY_SIZE(htcleo_bt_off_table));
|
|
mdelay(5);
|
|
|
|
/* BT_RTS */
|
|
gpio_configure(HTCLEO_GPIO_BT_UART1_RTS,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_LOW);
|
|
/* BT_TX */
|
|
gpio_configure(HTCLEO_GPIO_BT_UART1_TX,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_LOW);
|
|
|
|
/* BT_CHIP_WAKE */
|
|
gpio_configure(HTCLEO_GPIO_BT_CHIP_WAKE,
|
|
GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_LOW);
|
|
}
|
|
|
|
static int bluetooth_set_power(void *data, bool blocked)
|
|
{
|
|
if (pre_state == blocked) {
|
|
#ifdef HTC_RFKILL_DBG
|
|
printk(KERN_INFO "-- SAME ST --\n");
|
|
#endif
|
|
return 0;
|
|
} else
|
|
pre_state = blocked;
|
|
|
|
if (!blocked)
|
|
htcleo_config_bt_on();
|
|
else
|
|
htcleo_config_bt_off();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct rfkill_ops htcleo_rfkill_ops = {
|
|
.set_block = bluetooth_set_power,
|
|
};
|
|
|
|
static int htcleo_rfkill_probe(struct platform_device *pdev)
|
|
{
|
|
int rc = 0;
|
|
bool default_state = true; /* off */
|
|
|
|
htcleo_config_bt_init(); /* bt gpio initial config */
|
|
|
|
bluetooth_set_power(NULL, default_state);
|
|
|
|
bt_rfk = rfkill_alloc(bt_name, &pdev->dev, RFKILL_TYPE_BLUETOOTH,
|
|
&htcleo_rfkill_ops, NULL);
|
|
if (!bt_rfk) {
|
|
rc = -ENOMEM;
|
|
goto err_rfkill_reset;
|
|
}
|
|
|
|
rfkill_set_states(bt_rfk, default_state, false);
|
|
|
|
/* userspace cannot take exclusive control */
|
|
rc = rfkill_register(bt_rfk);
|
|
if (rc)
|
|
goto err_rfkill_reg;
|
|
|
|
return 0;
|
|
|
|
err_rfkill_reg:
|
|
rfkill_destroy(bt_rfk);
|
|
err_rfkill_reset:
|
|
return rc;
|
|
}
|
|
|
|
static int htcleo_rfkill_remove(struct platform_device *dev)
|
|
{
|
|
rfkill_unregister(bt_rfk);
|
|
rfkill_destroy(bt_rfk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver htcleo_rfkill_driver = {
|
|
.probe = htcleo_rfkill_probe,
|
|
.remove = htcleo_rfkill_remove,
|
|
.driver = {
|
|
.name = "htcleo_rfkill",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
static int __init htcleo_rfkill_init(void)
|
|
{
|
|
pre_state = -1;
|
|
if (!machine_is_htcleo())
|
|
return 0;
|
|
|
|
return platform_driver_register(&htcleo_rfkill_driver);
|
|
}
|
|
|
|
static void __exit htcleo_rfkill_exit(void)
|
|
{
|
|
platform_driver_unregister(&htcleo_rfkill_driver);
|
|
}
|
|
|
|
module_init(htcleo_rfkill_init);
|
|
module_exit(htcleo_rfkill_exit);
|
|
MODULE_DESCRIPTION("htcleo rfkill");
|
|
MODULE_AUTHOR("Markinus");
|
|
MODULE_LICENSE("GPL");
|