3  * Driver for Amlogic Meson IR remote receiver
20 #define DRIVER_NAME		"meson-ir"
68 static void meson_ir_set_mask(struct meson_ir *ir, unsigned int reg,  in meson_ir_set_mask()  argument
73 	data = readl(ir->reg + reg);  in meson_ir_set_mask()
76 	writel(data, ir->reg + reg);  in meson_ir_set_mask()
81 	struct meson_ir *ir = dev_id;  in meson_ir_irq()  local
85 	spin_lock(&ir->lock);  in meson_ir_irq()
87 	duration = readl_relaxed(ir->reg + IR_DEC_REG1);  in meson_ir_irq()
91 	status = readl_relaxed(ir->reg + IR_DEC_STATUS);  in meson_ir_irq()
94 	ir_raw_event_store_with_timeout(ir->rc, &rawir);  in meson_ir_irq()
96 	spin_unlock(&ir->lock);  in meson_ir_irq()
106 	struct meson_ir *ir;  in meson_ir_probe()  local
109 	ir = devm_kzalloc(dev, sizeof(struct meson_ir), GFP_KERNEL);  in meson_ir_probe()
110 	if (!ir)  in meson_ir_probe()
113 	ir->reg = devm_platform_ioremap_resource(pdev, 0);  in meson_ir_probe()
114 	if (IS_ERR(ir->reg))  in meson_ir_probe()
115 		return PTR_ERR(ir->reg);  in meson_ir_probe()
121 	ir->rc = devm_rc_allocate_device(dev, RC_DRIVER_IR_RAW);  in meson_ir_probe()
122 	if (!ir->rc) {  in meson_ir_probe()
127 	ir->rc->priv = ir;  in meson_ir_probe()
128 	ir->rc->device_name = DRIVER_NAME;  in meson_ir_probe()
129 	ir->rc->input_phys = DRIVER_NAME "/input0";  in meson_ir_probe()
130 	ir->rc->input_id.bustype = BUS_HOST;  in meson_ir_probe()
132 	ir->rc->map_name = map_name ? map_name : RC_MAP_EMPTY;  in meson_ir_probe()
133 	ir->rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;  in meson_ir_probe()
134 	ir->rc->rx_resolution = MESON_TRATE;  in meson_ir_probe()
135 	ir->rc->min_timeout = 1;  in meson_ir_probe()
136 	ir->rc->timeout = IR_DEFAULT_TIMEOUT;  in meson_ir_probe()
137 	ir->rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT;  in meson_ir_probe()
138 	ir->rc->driver_name = DRIVER_NAME;  in meson_ir_probe()
140 	spin_lock_init(&ir->lock);  in meson_ir_probe()
141 	platform_set_drvdata(pdev, ir);  in meson_ir_probe()
143 	ret = devm_rc_register_device(dev, ir->rc);  in meson_ir_probe()
149 	ret = devm_request_irq(dev, irq, meson_ir_irq, 0, NULL, ir);  in meson_ir_probe()
156 	meson_ir_set_mask(ir, IR_DEC_REG1, REG1_RESET, REG1_RESET);  in meson_ir_probe()
157 	meson_ir_set_mask(ir, IR_DEC_REG1, REG1_RESET, 0);  in meson_ir_probe()
160 	if (of_device_is_compatible(node, "amlogic,meson6-ir"))  in meson_ir_probe()
161 		meson_ir_set_mask(ir, IR_DEC_REG1, REG1_MODE_MASK,  in meson_ir_probe()
164 		meson_ir_set_mask(ir, IR_DEC_REG2, REG2_MODE_MASK,  in meson_ir_probe()
168 	meson_ir_set_mask(ir, IR_DEC_REG0, REG0_RATE_MASK, MESON_TRATE - 1);  in meson_ir_probe()
170 	meson_ir_set_mask(ir, IR_DEC_REG1, REG1_IRQSEL_MASK,  in meson_ir_probe()
173 	meson_ir_set_mask(ir, IR_DEC_REG1, REG1_ENABLE, REG1_ENABLE);  in meson_ir_probe()
182 	struct meson_ir *ir = platform_get_drvdata(pdev);  in meson_ir_remove()  local
186 	spin_lock_irqsave(&ir->lock, flags);  in meson_ir_remove()
187 	meson_ir_set_mask(ir, IR_DEC_REG1, REG1_ENABLE, 0);  in meson_ir_remove()
188 	spin_unlock_irqrestore(&ir->lock, flags);  in meson_ir_remove()
197 	struct meson_ir *ir = platform_get_drvdata(pdev);  in meson_ir_shutdown()  local
200 	spin_lock_irqsave(&ir->lock, flags);  in meson_ir_shutdown()
206 	if (of_device_is_compatible(node, "amlogic,meson6-ir"))  in meson_ir_shutdown()
207 		meson_ir_set_mask(ir, IR_DEC_REG1, REG1_MODE_MASK,  in meson_ir_shutdown()
210 		meson_ir_set_mask(ir, IR_DEC_REG2, REG2_MODE_MASK,  in meson_ir_shutdown()
214 	meson_ir_set_mask(ir, IR_DEC_REG0, REG0_RATE_MASK, 0x13);  in meson_ir_shutdown()
216 	spin_unlock_irqrestore(&ir->lock, flags);  in meson_ir_shutdown()
220 	{ .compatible = "amlogic,meson6-ir" },
221 	{ .compatible = "amlogic,meson8b-ir" },
222 	{ .compatible = "amlogic,meson-gxbb-ir" },
239 MODULE_DESCRIPTION("Amlogic Meson IR remote receiver driver");