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/*
* Copyright (C) 2008-2011 ST-Ericsson
*
* Author: Par-Gunnar Hjalmdahl <par-gunnar.p.hjalmdahl@stericsson.com>
*
* This program 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.
*
*/
#include <asm/mach-types.h>
#include <linux/gpio.h>
#include <linux/gpio/nomadik.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci.h>
#include <plat/pincfg.h>
#include "cg2900.h"
#include "devices-cg2900.h"
#include "pins-db8500.h"
#define CG2900_BT_ENABLE_GPIO 170
#define CG2900_GBF_ENA_RESET_GPIO 171
#define CG2900_BT_CTS_GPIO 0
enum cg2900_gpio_pull_sleep cg2900_sleep_gpio[21] = {
CG2900_NO_PULL, /* GPIO 0: PTA_CONFX */
CG2900_PULL_DN, /* GPIO 1: PTA_STATUS */
CG2900_NO_PULL, /* GPIO 2: UART_CTSN */
CG2900_PULL_UP, /* GPIO 3: UART_RTSN */
CG2900_PULL_UP, /* GPIO 4: UART_TXD */
CG2900_NO_PULL, /* GPIO 5: UART_RXD */
CG2900_PULL_DN, /* GPIO 6: IOM_DOUT */
CG2900_NO_PULL, /* GPIO 7: IOM_FSC */
CG2900_NO_PULL, /* GPIO 8: IOM_CLK */
CG2900_NO_PULL, /* GPIO 9: IOM_DIN */
CG2900_PULL_DN, /* GPIO 10: PWR_REQ */
CG2900_PULL_DN, /* GPIO 11: HOST_WAKEUP */
CG2900_PULL_DN, /* GPIO 12: IIS_DOUT */
CG2900_NO_PULL, /* GPIO 13: IIS_WS */
CG2900_NO_PULL, /* GPIO 14: IIS_CLK */
CG2900_NO_PULL, /* GPIO 15: IIS_DIN */
CG2900_PULL_DN, /* GPIO 16: PTA_FREQ */
CG2900_PULL_DN, /* GPIO 17: PTA_RF_ACTIVE */
CG2900_NO_PULL, /* GPIO 18: NotConnected (J6428) */
CG2900_NO_PULL, /* GPIO 19: EXT_DUTY_CYCLE */
CG2900_NO_PULL, /* GPIO 20: EXT_FRM_SYNCH */
};
static struct platform_device ux500_cg2900_device = {
.name = "cg2900",
};
static struct platform_device ux500_cg2900_chip_device = {
.name = "cg2900-chip",
.dev = {
.parent = &ux500_cg2900_device.dev,
},
};
static struct platform_device ux500_stlc2690_chip_device = {
.name = "stlc2690-chip",
.dev = {
.parent = &ux500_cg2900_device.dev,
},
};
static struct cg2900_platform_data cg2900_test_platform_data = {
.bus = HCI_VIRTUAL,
.gpio_sleep = cg2900_sleep_gpio,
};
static struct platform_device ux500_cg2900_test_device = {
.name = "cg2900-test",
.dev = {
.parent = &ux500_cg2900_device.dev,
.platform_data = &cg2900_test_platform_data,
},
};
static struct resource cg2900_uart_resources[] = {
{
.start = CG2900_GBF_ENA_RESET_GPIO,
.end = CG2900_GBF_ENA_RESET_GPIO,
.flags = IORESOURCE_IO,
.name = "gbf_ena_reset",
},
{
.start = CG2900_BT_ENABLE_GPIO,
.end = CG2900_BT_ENABLE_GPIO,
.flags = IORESOURCE_IO,
.name = "bt_enable",
},
{
.start = CG2900_BT_CTS_GPIO,
.end = CG2900_BT_CTS_GPIO,
.flags = IORESOURCE_IO,
.name = "cts_gpio",
},
{
.start = NOMADIK_GPIO_TO_IRQ(CG2900_BT_CTS_GPIO),
.end = NOMADIK_GPIO_TO_IRQ(CG2900_BT_CTS_GPIO),
.flags = IORESOURCE_IRQ,
.name = "cts_irq",
},
};
static pin_cfg_t cg2900_uart_enabled[] = {
GPIO0_U0_CTSn | PIN_INPUT_PULLUP,
GPIO1_U0_RTSn | PIN_OUTPUT_HIGH,
GPIO2_U0_RXD | PIN_INPUT_PULLUP,
GPIO3_U0_TXD | PIN_OUTPUT_HIGH
};
static pin_cfg_t cg2900_uart_disabled[] = {
GPIO0_GPIO | PIN_INPUT_PULLUP, /* CTS pull up. */
GPIO1_GPIO | PIN_OUTPUT_HIGH, /* RTS high-flow off. */
GPIO2_GPIO | PIN_INPUT_PULLUP, /* RX pull down. */
GPIO3_GPIO | PIN_OUTPUT_LOW /* TX low - break on. */
};
static struct cg2900_platform_data cg2900_uart_platform_data = {
.bus = HCI_UART,
.gpio_sleep = cg2900_sleep_gpio,
.uart = {
.n_uart_gpios = 4,
.uart_enabled = cg2900_uart_enabled,
.uart_disabled = cg2900_uart_disabled,
},
.regulator_id = "vdd",
};
static struct platform_device ux500_cg2900_uart_device = {
.name = "cg2900-uart",
.dev = {
.platform_data = &cg2900_uart_platform_data,
.parent = &ux500_cg2900_device.dev,
},
.num_resources = ARRAY_SIZE(cg2900_uart_resources),
.resource = cg2900_uart_resources,
};
static bool mach_supported(void)
{
if (machine_is_u8500() ||
machine_is_u5500() ||
machine_is_hrefv60() ||
machine_is_nomadik() ||
machine_is_snowball())
return true;
return false;
}
static int __init board_cg2900_init(void)
{
int err;
if (!mach_supported())
return 0;
dcg2900_init_platdata(&cg2900_test_platform_data);
dcg2900_init_platdata(&cg2900_uart_platform_data);
err = platform_device_register(&ux500_cg2900_device);
if (err)
return err;
err = platform_device_register(&ux500_cg2900_uart_device);
if (err)
return err;
err = platform_device_register(&ux500_cg2900_test_device);
if (err)
return err;
err = platform_device_register(&ux500_cg2900_chip_device);
if (err)
return err;
err = platform_device_register(&ux500_stlc2690_chip_device);
if (err)
return err;
dev_info(&ux500_cg2900_device.dev, "CG2900 initialized\n");
return 0;
}
static void __exit board_cg2900_exit(void)
{
if (!mach_supported())
return;
platform_device_unregister(&ux500_stlc2690_chip_device);
platform_device_unregister(&ux500_cg2900_chip_device);
platform_device_unregister(&ux500_cg2900_test_device);
platform_device_unregister(&ux500_cg2900_uart_device);
platform_device_unregister(&ux500_cg2900_device);
dev_info(&ux500_cg2900_device.dev, "CG2900 removed\n");
}
module_init(board_cg2900_init);
module_exit(board_cg2900_exit);
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