rtl8821ce/hal/halmac/halmac_88xx/halmac_gpio_88xx.c

/******************************************************************************
 *
 * Copyright(c) 2016 - 2018 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * 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 "halmac_gpio_88xx.h"

#if HALMAC_88XX_SUPPORT

/**
 * pinmux_wl_led_mode_88xx() -control wlan led gpio function
 * @adapter : the adapter of halmac
 * @mode : wlan led mode
 * Author : Ivan Lin
 * Return : enum halmac_ret_status
 * More details of status code can be found in prototype document
 */
enum halmac_ret_status
pinmux_wl_led_mode_88xx(struct halmac_adapter *adapter,
			enum halmac_wlled_mode mode)
{
	u8 value8;
	struct halmac_api *api = (struct halmac_api *)adapter->halmac_api;

	PLTFM_MSG_TRACE("[TRACE]%s ===>\n", __func__);

	value8 = HALMAC_REG_R8(REG_LED_CFG + 2);
	value8 &= ~(BIT(6));
	value8 |= BIT(3);
	value8 &= ~(BIT(0) | BIT(1) | BIT(2));

	switch (mode) {
	case HALMAC_WLLED_MODE_TRX:
		value8 |= 2;
		break;
	case HALMAC_WLLED_MODE_TX:
		value8 |= 4;
		break;
	case HALMAC_WLLED_MODE_RX:
		value8 |= 6;
		break;
	case HALMAC_WLLED_MODE_SW_CTRL:
		value8 |= 0;
		break;
	default:
		return HALMAC_RET_SWITCH_CASE_ERROR;
	}

	HALMAC_REG_W8(REG_LED_CFG + 2, value8);

	PLTFM_MSG_TRACE("[TRACE]%s <===\n", __func__);

	return HALMAC_RET_SUCCESS;
}

/**
 * pinmux_wl_led_sw_ctrl_88xx() -control wlan led on/off
 * @adapter : the adapter of halmac
 * @on : on(1), off(0)
 * Author : Ivan Lin
 * Return : enum halmac_ret_status
 * More details of status code can be found in prototype document
 */
void
pinmux_wl_led_sw_ctrl_88xx(struct halmac_adapter *adapter, u8 on)
{
	u8 value8;
	struct halmac_api *api = (struct halmac_api *)adapter->halmac_api;

	value8 = HALMAC_REG_R8(REG_LED_CFG + 2);
	value8 = (on == 0) ? value8 | BIT(3) : value8 & ~(BIT(3));

	HALMAC_REG_W8(REG_LED_CFG + 2, value8);
}

/**
 * pinmux_sdio_int_polarity_88xx() -control sdio int polarity
 * @adapter : the adapter of halmac
 * @low_active : low active(1), high active(0)
 * Author : Ivan Lin
 * Return : enum halmac_ret_status
 * More details of status code can be found in prototype document
 */
void
pinmux_sdio_int_polarity_88xx(struct halmac_adapter *adapter, u8 low_active)
{
	u8 value8;
	struct halmac_api *api = (struct halmac_api *)adapter->halmac_api;

	value8 = HALMAC_REG_R8(REG_SYS_SDIO_CTRL + 2);
	value8 = (low_active == 0) ? value8 | BIT(3) : value8 & ~(BIT(3));

	HALMAC_REG_W8(REG_SYS_SDIO_CTRL + 2, value8);
}

/**
 * pinmux_gpio_mode_88xx() -control gpio io mode
 * @adapter : the adapter of halmac
 * @gpio_id : gpio0~15(0~15)
 * @output : output(1), input(0)
 * Author : Ivan Lin
 * Return : enum halmac_ret_status
 * More details of status code can be found in prototype document
 */
enum halmac_ret_status
pinmux_gpio_mode_88xx(struct halmac_adapter *adapter, u8 gpio_id, u8 output)
{
	u16 value16;
	u8 in_out;
	u32 offset;
	struct halmac_api *api = (struct halmac_api *)adapter->halmac_api;

	if (gpio_id <= 7)
		offset = REG_GPIO_PIN_CTRL + 2;
	else if (gpio_id >= 8 && gpio_id <= 15)
		offset = REG_GPIO_EXT_CTRL + 2;
	else
		return HALMAC_RET_WRONG_GPIO;

	in_out = (output == 0) ? 0 : 1;
	gpio_id &= (8 - 1);

	value16 = HALMAC_REG_R16(offset);
	value16 &= ~((1 << gpio_id) | (1 << gpio_id << 8));
	value16 |= (in_out << gpio_id);
	HALMAC_REG_W16(offset, value16);

	return HALMAC_RET_SUCCESS;
}

/**
 * pinmux_gpio_output_88xx() -control gpio output high/low
 * @adapter : the adapter of halmac
 * @gpio_id : gpio0~15(0~15)
 * @high : high(1), low(0)
 * Author : Ivan Lin
 * Return : enum halmac_ret_status
 * More details of status code can be found in prototype document
 */
enum halmac_ret_status
pinmux_gpio_output_88xx(struct halmac_adapter *adapter, u8 gpio_id, u8 high)
{
	u8 value8;
	u8 hi_low;
	u32 offset;
	struct halmac_api *api = (struct halmac_api *)adapter->halmac_api;

	if (gpio_id <= 7)
		offset = REG_GPIO_PIN_CTRL + 1;
	else if (gpio_id >= 8 && gpio_id <= 15)
		offset = REG_GPIO_EXT_CTRL + 1;
	else
		return HALMAC_RET_WRONG_GPIO;

	hi_low = (high == 0) ? 0 : 1;
	gpio_id &= (8 - 1);

	value8 = HALMAC_REG_R8(offset);
	value8 &= ~(1 << gpio_id);
	value8 |= (hi_low << gpio_id);
	HALMAC_REG_W8(offset, value8);

	return HALMAC_RET_SUCCESS;
}

/**
 * halmac_pinmux_status_88xx() -get current gpio status(high/low)
 * @adapter : the adapter of halmac
 * @pin_id : 0~15(0~15)
 * @phigh : high(1), low(0)
 * Author : Ivan Lin
 * Return : enum halmac_ret_status
 * More details of status code can be found in prototype document
 */
enum halmac_ret_status
pinmux_pin_status_88xx(struct halmac_adapter *adapter, u8 pin_id, u8 *high)
{
	u8 value8;
	u32 offset;
	struct halmac_api *api = (struct halmac_api *)adapter->halmac_api;

	if (pin_id <= 7)
		offset = REG_GPIO_PIN_CTRL;
	else if (pin_id >= 8 && pin_id <= 15)
		offset = REG_GPIO_EXT_CTRL;
	else
		return HALMAC_RET_WRONG_GPIO;

	pin_id &= (8 - 1);

	value8 = HALMAC_REG_R8(offset);
	*high = (value8 & (1 << pin_id)) >> pin_id;

	return HALMAC_RET_SUCCESS;
}

enum halmac_ret_status
pinmux_parser_88xx(struct halmac_adapter *adapter,
		   const struct halmac_gpio_pimux_list *list, u32 size,
		   u32 gpio_id, u32 *cur_func)
{
	u32 i;
	u8 value8;
	const struct halmac_gpio_pimux_list *cur_list = list;
	enum halmac_gpio_cfg_state *state;
	struct halmac_api *api = (struct halmac_api *)adapter->halmac_api;

	state = &adapter->halmac_state.gpio_cfg_state;

	if (*state == HALMAC_GPIO_CFG_STATE_BUSY)
		return HALMAC_RET_BUSY_STATE;

	*state = HALMAC_GPIO_CFG_STATE_BUSY;

	for (i = 0; i < size; i++) {
		if (gpio_id != cur_list->id) {
			PLTFM_MSG_ERR("[ERR]offset:%X, value:%X, func:%X\n",
				      cur_list->offset, cur_list->value,
				      cur_list->func);
			PLTFM_MSG_ERR("[ERR]id1 : %X, id2 : %X\n",
				      gpio_id, cur_list->id);
			*state = HALMAC_GPIO_CFG_STATE_IDLE;
			return HALMAC_RET_GET_PINMUX_ERR;
		}
		value8 = HALMAC_REG_R8(cur_list->offset);
		value8 &= cur_list->msk;
		if (value8 == cur_list->value) {
			*cur_func = cur_list->func;
			break;
		}
		cur_list++;
	}

	*state = HALMAC_GPIO_CFG_STATE_IDLE;

	if (i == size)
		return HALMAC_RET_GET_PINMUX_ERR;

	return HALMAC_RET_SUCCESS;
}

enum halmac_ret_status
pinmux_switch_88xx(struct halmac_adapter *adapter,
		   const struct halmac_gpio_pimux_list *list, u32 size,
		   u32 gpio_id, enum halmac_gpio_func gpio_func)
{
	u32 i;
	u8 value8;
	u16 switch_func;
	const struct halmac_gpio_pimux_list *cur_list = list;
	enum halmac_gpio_cfg_state *state;
	struct halmac_api *api = (struct halmac_api *)adapter->halmac_api;

	state = &adapter->halmac_state.gpio_cfg_state;

	if (*state == HALMAC_GPIO_CFG_STATE_BUSY)
		return HALMAC_RET_BUSY_STATE;

	switch (gpio_func) {
	case HALMAC_GPIO_FUNC_WL_LED:
		switch_func = HALMAC_WL_LED;
		break;
	case HALMAC_GPIO_FUNC_SDIO_INT:
		switch_func = HALMAC_SDIO_INT;
		break;
	case HALMAC_GPIO_FUNC_BT_HOST_WAKE1:
	case HALMAC_GPIO_FUNC_BT_DEV_WAKE1:
		switch_func = HALMAC_GPIO13_14_WL_CTRL_EN;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_0:
	case HALMAC_GPIO_FUNC_SW_IO_1:
	case HALMAC_GPIO_FUNC_SW_IO_2:
	case HALMAC_GPIO_FUNC_SW_IO_3:
	case HALMAC_GPIO_FUNC_SW_IO_4:
	case HALMAC_GPIO_FUNC_SW_IO_5:
	case HALMAC_GPIO_FUNC_SW_IO_6:
	case HALMAC_GPIO_FUNC_SW_IO_7:
	case HALMAC_GPIO_FUNC_SW_IO_8:
	case HALMAC_GPIO_FUNC_SW_IO_9:
	case HALMAC_GPIO_FUNC_SW_IO_10:
	case HALMAC_GPIO_FUNC_SW_IO_11:
	case HALMAC_GPIO_FUNC_SW_IO_12:
	case HALMAC_GPIO_FUNC_SW_IO_13:
	case HALMAC_GPIO_FUNC_SW_IO_14:
	case HALMAC_GPIO_FUNC_SW_IO_15:
		switch_func = HALMAC_SW_IO;
		break;
	default:
		return HALMAC_RET_SWITCH_CASE_ERROR;
	}

	for (i = 0; i < size; i++) {
		if (gpio_id != cur_list->id) {
			PLTFM_MSG_ERR("[ERR]offset:%X, value:%X, func:%X\n",
				      cur_list->offset, cur_list->value,
				      cur_list->func);
			PLTFM_MSG_ERR("[ERR]id1 : %X, id2 : %X\n",
				      gpio_id, cur_list->id);
			return HALMAC_RET_GET_PINMUX_ERR;
		}

		if (switch_func == cur_list->func)
			break;

		cur_list++;
	}

	if (i == size) {
		PLTFM_MSG_ERR("[ERR]gpio func error:%X %X\n",
			      gpio_id, cur_list->id);
		return HALMAC_RET_GET_PINMUX_ERR;
	}

	*state = HALMAC_GPIO_CFG_STATE_BUSY;

	cur_list = list;
	for (i = 0; i < size; i++) {
		value8 = HALMAC_REG_R8(cur_list->offset);
		value8 &= ~(cur_list->msk);

		if (switch_func == cur_list->func) {
			value8 |= (cur_list->value & cur_list->msk);
			HALMAC_REG_W8(cur_list->offset, value8);
			break;
		}

		value8 |= (~cur_list->value & cur_list->msk);
		HALMAC_REG_W8(cur_list->offset, value8);

		cur_list++;
	}

	*state = HALMAC_GPIO_CFG_STATE_IDLE;

	return HALMAC_RET_SUCCESS;
}

enum halmac_ret_status
pinmux_record_88xx(struct halmac_adapter *adapter,
		   enum halmac_gpio_func gpio_func, u8 val)
{
	switch (gpio_func) {
	case HALMAC_GPIO_FUNC_WL_LED:
		adapter->pinmux_info.wl_led = val;
		break;
	case HALMAC_GPIO_FUNC_SDIO_INT:
		adapter->pinmux_info.sdio_int = val;
		break;
	case HALMAC_GPIO_FUNC_BT_HOST_WAKE1:
		adapter->pinmux_info.bt_host_wake = val;
		break;
	case HALMAC_GPIO_FUNC_BT_DEV_WAKE1:
		adapter->pinmux_info.bt_dev_wake = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_0:
		adapter->pinmux_info.sw_io_0 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_1:
		adapter->pinmux_info.sw_io_1 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_2:
		adapter->pinmux_info.sw_io_2 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_3:
		adapter->pinmux_info.sw_io_3 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_4:
		adapter->pinmux_info.sw_io_4 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_5:
		adapter->pinmux_info.sw_io_5 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_6:
		adapter->pinmux_info.sw_io_6 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_7:
		adapter->pinmux_info.sw_io_7 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_8:
		adapter->pinmux_info.sw_io_8 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_9:
		adapter->pinmux_info.sw_io_9 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_10:
		adapter->pinmux_info.sw_io_10 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_11:
		adapter->pinmux_info.sw_io_11 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_12:
		adapter->pinmux_info.sw_io_12 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_13:
		adapter->pinmux_info.sw_io_13 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_14:
		adapter->pinmux_info.sw_io_14 = val;
		break;
	case HALMAC_GPIO_FUNC_SW_IO_15:
		adapter->pinmux_info.sw_io_15 = val;
		break;
	default:
		return HALMAC_RET_GET_PINMUX_ERR;
	}

	return HALMAC_RET_SUCCESS;
}

#endif /* HALMAC_88XX_SUPPORT */