1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (c) 2012-2020 Synaptics Incorporated
41 	u16 key_code = f3a->gpio_key_map[button];  in rmi_f3a_report_button()
42 	bool key_down = !(f3a->data_regs[0] & BIT(button));  in rmi_f3a_report_button()
44 	if (f3a->trackstick_buttons &&  in rmi_f3a_report_button()
47 		rmi_f03_overwrite_button(f3a->f03, key_code, key_down);  in rmi_f3a_report_button()
49 		rmi_dbg(RMI_DEBUG_FN, &fn->dev,  in rmi_f3a_report_button()
52 		input_report_key(f3a->input, key_code, key_down);  in rmi_f3a_report_button()
59 	struct f3a_data *f3a = dev_get_drvdata(&fn->dev);  in rmi_f3a_attention()
60 	struct rmi_driver_data *drvdata = dev_get_drvdata(&fn->rmi_dev->dev);  in rmi_f3a_attention()
64 	if (drvdata->attn_data.data) {  in rmi_f3a_attention()
65 		if (drvdata->attn_data.size < f3a->register_count) {  in rmi_f3a_attention()
66 			dev_warn(&fn->dev,  in rmi_f3a_attention()
70 		memcpy(f3a->data_regs, drvdata->attn_data.data,  in rmi_f3a_attention()
71 			f3a->register_count);  in rmi_f3a_attention()
72 		drvdata->attn_data.data += f3a->register_count;  in rmi_f3a_attention()
73 		drvdata->attn_data.size -= f3a->register_count;  in rmi_f3a_attention()
75 		error = rmi_read_block(fn->rmi_dev, fn->fd.data_base_addr,  in rmi_f3a_attention()
76 					f3a->data_regs, f3a->register_count);  in rmi_f3a_attention()
78 			dev_err(&fn->dev,  in rmi_f3a_attention()
85 	for (i = 0; i < f3a->gpio_count; i++)  in rmi_f3a_attention()
86 		if (f3a->gpio_key_map[i] != KEY_RESERVED)  in rmi_f3a_attention()
88 	if (f3a->trackstick_buttons)  in rmi_f3a_attention()
89 		rmi_f03_commit_buttons(f3a->f03);  in rmi_f3a_attention()
96 	struct f3a_data *f3a = dev_get_drvdata(&fn->dev);  in rmi_f3a_config()
97 	struct rmi_driver *drv = fn->rmi_dev->driver;  in rmi_f3a_config()
99 			rmi_get_platform_data(fn->rmi_dev);  in rmi_f3a_config()
104 	if (pdata->gpio_data.trackstick_buttons) {  in rmi_f3a_config()
105 		/* Try [re-]establish link to F03. */  in rmi_f3a_config()
106 		f3a->f03 = rmi_find_function(fn->rmi_dev, 0x03);  in rmi_f3a_config()
107 		f3a->trackstick_buttons = f3a->f03 != NULL;  in rmi_f3a_config()
110 	drv->set_irq_bits(fn->rmi_dev, fn->irq_mask);  in rmi_f3a_config()
118 	/* gpio exist && direction input */  in rmi_f3a_is_valid_button()
126 			rmi_get_platform_data(fn->rmi_dev);  in rmi_f3a_map_gpios()
127 	struct input_dev *input = f3a->input;  in rmi_f3a_map_gpios()
132 	int button_count = min_t(u8, f3a->gpio_count, TRACKSTICK_RANGE_END);  in rmi_f3a_map_gpios()
134 	f3a->gpio_key_map = devm_kcalloc(&fn->dev,  in rmi_f3a_map_gpios()
136 						sizeof(f3a->gpio_key_map[0]),  in rmi_f3a_map_gpios()
138 	if (!f3a->gpio_key_map) {  in rmi_f3a_map_gpios()
139 		dev_err(&fn->dev, "Failed to allocate gpio map memory.\n");  in rmi_f3a_map_gpios()
140 		return -ENOMEM;  in rmi_f3a_map_gpios()
147 		if (pdata->gpio_data.trackstick_buttons &&  in rmi_f3a_map_gpios()
150 			f3a->gpio_key_map[i] = trackstick_button++;  in rmi_f3a_map_gpios()
151 		} else if (!pdata->gpio_data.buttonpad || !button_mapped) {  in rmi_f3a_map_gpios()
152 			f3a->gpio_key_map[i] = button;  in rmi_f3a_map_gpios()
157 	input->keycode = f3a->gpio_key_map;  in rmi_f3a_map_gpios()
158 	input->keycodesize = sizeof(f3a->gpio_key_map[0]);  in rmi_f3a_map_gpios()
159 	input->keycodemax = f3a->gpio_count;  in rmi_f3a_map_gpios()
161 	if (pdata->gpio_data.buttonpad || (button - BTN_LEFT == 1))  in rmi_f3a_map_gpios()
162 		__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);  in rmi_f3a_map_gpios()
170 	u8 ctrl1[RMI_F3A_MAX_REG_SIZE];  in rmi_f3a_initialize()  local
174 	error = rmi_read(fn->rmi_dev, fn->fd.query_base_addr, &buf);  in rmi_f3a_initialize()
176 		dev_err(&fn->dev, "Failed to read general info register: %d\n",  in rmi_f3a_initialize()
178 		return -ENODEV;  in rmi_f3a_initialize()
181 	f3a->gpio_count = buf & RMI_F3A_GPIO_COUNT;  in rmi_f3a_initialize()
182 	f3a->register_count = DIV_ROUND_UP(f3a->gpio_count, 8);  in rmi_f3a_initialize()
184 	/* Query1 -> gpio exist */  in rmi_f3a_initialize()
185 	error = rmi_read_block(fn->rmi_dev, fn->fd.query_base_addr + 1,  in rmi_f3a_initialize()
186 				query1, f3a->register_count);  in rmi_f3a_initialize()
188 		dev_err(&fn->dev, "Failed to read query1 register\n");  in rmi_f3a_initialize()
192 	/* Ctrl1 -> gpio direction */  in rmi_f3a_initialize()
193 	error = rmi_read_block(fn->rmi_dev, fn->fd.control_base_addr + 1,  in rmi_f3a_initialize()
194 				ctrl1, f3a->register_count);  in rmi_f3a_initialize()
196 		dev_err(&fn->dev, "Failed to read control1 register\n");  in rmi_f3a_initialize()
200 	error = rmi_f3a_map_gpios(fn, f3a, query1, ctrl1);  in rmi_f3a_initialize()
209 	struct rmi_device *rmi_dev = fn->rmi_dev;  in rmi_f3a_probe()
210 	struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev);  in rmi_f3a_probe()
214 	if (!drv_data->input) {  in rmi_f3a_probe()
215 		dev_info(&fn->dev, "F3A: no input device found, ignoring\n");  in rmi_f3a_probe()
216 		return -ENXIO;  in rmi_f3a_probe()
219 	f3a = devm_kzalloc(&fn->dev, sizeof(*f3a), GFP_KERNEL);  in rmi_f3a_probe()
221 		return -ENOMEM;  in rmi_f3a_probe()
223 	f3a->input = drv_data->input;  in rmi_f3a_probe()
229 	dev_set_drvdata(&fn->dev, f3a);  in rmi_f3a_probe()