61 #define REG_RXSTA_GET_AC(val) (((val) >> 8) & (ir->fifo_size * 2 - 1))
104 	struct sunxi_ir *ir = dev_id;  in sunxi_ir_irq()  local
107 	status = readl(ir->base + SUNXI_IR_RXSTA_REG);  in sunxi_ir_irq()
110 	writel(status | REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);  in sunxi_ir_irq()
116 		rc = rc > ir->fifo_size ? ir->fifo_size : rc;  in sunxi_ir_irq()
120 			dt = readb(ir->base + SUNXI_IR_RXFIFO_REG);  in sunxi_ir_irq()
123 					 ir->rc->rx_resolution;  in sunxi_ir_irq()
124 			ir_raw_event_store_with_filter(ir->rc, &rawir);  in sunxi_ir_irq()
129 		ir_raw_event_overflow(ir->rc);  in sunxi_ir_irq()
131 		ir_raw_event_set_idle(ir->rc, true);  in sunxi_ir_irq()
132 		ir_raw_event_handle(ir->rc);  in sunxi_ir_irq()
134 		ir_raw_event_handle(ir->rc);  in sunxi_ir_irq()
156 	struct sunxi_ir *ir = rc_dev->priv;  in sunxi_ir_set_timeout()  local
157 	unsigned int base_clk = clk_get_rate(ir->clk);  in sunxi_ir_set_timeout()
165 	       ir->base + SUNXI_IR_CIR_REG);  in sunxi_ir_set_timeout()
174 	struct sunxi_ir *ir = dev_get_drvdata(dev);  in sunxi_ir_hw_init()  local
178 	ret = reset_control_deassert(ir->rst);  in sunxi_ir_hw_init()
182 	ret = clk_prepare_enable(ir->apb_clk);  in sunxi_ir_hw_init()
188 	ret = clk_prepare_enable(ir->clk);  in sunxi_ir_hw_init()
195 	writel(REG_CTL_MD, ir->base + SUNXI_IR_CTL_REG);  in sunxi_ir_hw_init()
198 	sunxi_ir_set_timeout(ir->rc, ir->rc->timeout);  in sunxi_ir_hw_init()
201 	writel(REG_RXCTL_RPPI, ir->base + SUNXI_IR_RXCTL_REG);  in sunxi_ir_hw_init()
204 	writel(REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);  in sunxi_ir_hw_init()
211 	       REG_RXINT_RAI_EN | REG_RXINT_RAL(ir->fifo_size / 2 - 1),  in sunxi_ir_hw_init()
212 	       ir->base + SUNXI_IR_RXINT_REG);  in sunxi_ir_hw_init()
215 	tmp = readl(ir->base + SUNXI_IR_CTL_REG);  in sunxi_ir_hw_init()
216 	writel(tmp | REG_CTL_GEN | REG_CTL_RXEN, ir->base + SUNXI_IR_CTL_REG);  in sunxi_ir_hw_init()
221 	clk_disable_unprepare(ir->apb_clk);  in sunxi_ir_hw_init()
223 	reset_control_assert(ir->rst);  in sunxi_ir_hw_init()
230 	struct sunxi_ir *ir = dev_get_drvdata(dev);  in sunxi_ir_hw_exit()  local
232 	clk_disable_unprepare(ir->clk);  in sunxi_ir_hw_exit()
233 	clk_disable_unprepare(ir->apb_clk);  in sunxi_ir_hw_exit()
234 	reset_control_assert(ir->rst);  in sunxi_ir_hw_exit()
258 	struct sunxi_ir *ir;  in sunxi_ir_probe()  local
261 	ir = devm_kzalloc(dev, sizeof(struct sunxi_ir), GFP_KERNEL);  in sunxi_ir_probe()
262 	if (!ir)  in sunxi_ir_probe()
271 	ir->fifo_size = quirks->fifo_size;  in sunxi_ir_probe()
274 	ir->apb_clk = devm_clk_get(dev, "apb");  in sunxi_ir_probe()
275 	if (IS_ERR(ir->apb_clk)) {  in sunxi_ir_probe()
277 		return PTR_ERR(ir->apb_clk);  in sunxi_ir_probe()
279 	ir->clk = devm_clk_get(dev, "ir");  in sunxi_ir_probe()
280 	if (IS_ERR(ir->clk)) {  in sunxi_ir_probe()
282 		return PTR_ERR(ir->clk);  in sunxi_ir_probe()
290 		ir->rst = devm_reset_control_get_exclusive(dev, NULL);  in sunxi_ir_probe()
291 		if (IS_ERR(ir->rst))  in sunxi_ir_probe()
292 			return PTR_ERR(ir->rst);  in sunxi_ir_probe()
295 	ret = clk_set_rate(ir->clk, b_clk_freq);  in sunxi_ir_probe()
303 	ir->base = devm_platform_ioremap_resource(pdev, 0);  in sunxi_ir_probe()
304 	if (IS_ERR(ir->base)) {  in sunxi_ir_probe()
305 		return PTR_ERR(ir->base);  in sunxi_ir_probe()
308 	ir->rc = rc_allocate_device(RC_DRIVER_IR_RAW);  in sunxi_ir_probe()
309 	if (!ir->rc) {  in sunxi_ir_probe()
314 	ir->rc->priv = ir;  in sunxi_ir_probe()
315 	ir->rc->device_name = SUNXI_IR_DEV;  in sunxi_ir_probe()
316 	ir->rc->input_phys = "sunxi-ir/input0";  in sunxi_ir_probe()
317 	ir->rc->input_id.bustype = BUS_HOST;  in sunxi_ir_probe()
318 	ir->rc->input_id.vendor = 0x0001;  in sunxi_ir_probe()
319 	ir->rc->input_id.product = 0x0001;  in sunxi_ir_probe()
320 	ir->rc->input_id.version = 0x0100;  in sunxi_ir_probe()
321 	ir->map_name = of_get_property(dn, "linux,rc-map-name", NULL);  in sunxi_ir_probe()
322 	ir->rc->map_name = ir->map_name ?: RC_MAP_EMPTY;  in sunxi_ir_probe()
323 	ir->rc->dev.parent = dev;  in sunxi_ir_probe()
324 	ir->rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;  in sunxi_ir_probe()
326 	ir->rc->rx_resolution = (USEC_PER_SEC / (b_clk_freq / 64));  in sunxi_ir_probe()
327 	ir->rc->timeout = IR_DEFAULT_TIMEOUT;  in sunxi_ir_probe()
328 	ir->rc->min_timeout = sunxi_ithr_to_usec(b_clk_freq, 0);  in sunxi_ir_probe()
329 	ir->rc->max_timeout = sunxi_ithr_to_usec(b_clk_freq, 255);  in sunxi_ir_probe()
330 	ir->rc->s_timeout = sunxi_ir_set_timeout;  in sunxi_ir_probe()
331 	ir->rc->driver_name = SUNXI_IR_DEV;  in sunxi_ir_probe()
333 	ret = rc_register_device(ir->rc);  in sunxi_ir_probe()
339 	platform_set_drvdata(pdev, ir);  in sunxi_ir_probe()
342 	ir->irq = platform_get_irq(pdev, 0);  in sunxi_ir_probe()
343 	if (ir->irq < 0) {  in sunxi_ir_probe()
344 		ret = ir->irq;  in sunxi_ir_probe()
348 	ret = devm_request_irq(dev, ir->irq, sunxi_ir_irq, 0, SUNXI_IR_DEV, ir);  in sunxi_ir_probe()
362 	rc_free_device(ir->rc);  in sunxi_ir_probe()
369 	struct sunxi_ir *ir = platform_get_drvdata(pdev);  in sunxi_ir_remove()  local
371 	rc_unregister_device(ir->rc);  in sunxi_ir_remove()