Lines Matching refs:micro

23 #include <linux/mfd/ipaq-micro.h>
31 static void ipaq_micro_trigger_tx(struct ipaq_micro *micro)
33 	struct ipaq_micro_txdev *tx = &micro->tx;
34 	struct ipaq_micro_msg *msg = micro->msg;
55 	val = readl(micro->base + UTCR3);
57 	writel(val, micro->base + UTCR3);
60 int ipaq_micro_tx_msg(struct ipaq_micro *micro, struct ipaq_micro_msg *msg)
64 	dev_dbg(micro->dev, "TX msg: %02x, %d bytes\n", msg->id, msg->tx_len);
66 	spin_lock_irqsave(&micro->lock, flags);
67 	if (micro->msg) {
68 		list_add_tail(&msg->node, &micro->queue);
69 		spin_unlock_irqrestore(&micro->lock, flags);
72 	micro->msg = msg;
73 	ipaq_micro_trigger_tx(micro);
74 	spin_unlock_irqrestore(&micro->lock, flags);
79 static void micro_rx_msg(struct ipaq_micro *micro, u8 id, int len, u8 *data)
83 	dev_dbg(micro->dev, "RX msg: %02x, %d bytes\n", id, len);
85 	spin_lock(&micro->lock);
95 		if (micro->msg && micro->msg->id == id) {
96 			struct ipaq_micro_msg *msg = micro->msg;
100 			complete(&micro->msg->ack);
101 			if (!list_empty(&micro->queue)) {
102 				micro->msg = list_entry(micro->queue.next,
105 				list_del_init(&micro->msg->node);
106 				ipaq_micro_trigger_tx(micro);
108 				micro->msg = NULL;
109 			dev_dbg(micro->dev, "OK RX message 0x%02x\n", id);
111 			dev_err(micro->dev,
113 			if (!micro->msg)
114 				dev_info(micro->dev, "no message queued\n");
116 				dev_info(micro->dev, "expected message %02x\n",
117 					 micro->msg->id);
121 		if (micro->key)
122 			micro->key(micro->key_data, len, data);
124 			dev_dbg(micro->dev, "key message ignored, no handle\n");
127 		if (micro->ts)
128 			micro->ts(micro->ts_data, len, data);
130 			dev_dbg(micro->dev, "touchscreen message ignored, no handle\n");
133 		dev_err(micro->dev,
139 	spin_unlock(&micro->lock);
142 static void micro_process_char(struct ipaq_micro *micro, u8 ch)
144 	struct ipaq_micro_rxdev *rx = &micro->rx;
166 			micro_rx_msg(micro, rx->id, rx->len, rx->buf);
172 static void micro_rx_chars(struct ipaq_micro *micro)
176 	while ((status = readl(micro->base + UTSR1)) & UTSR1_RNE) {
177 		ch = readl(micro->base + UTDR);
179 			dev_err(micro->dev, "rx: parity error\n");
181 			dev_err(micro->dev, "rx: framing error\n");
183 			dev_err(micro->dev, "rx: overrun error\n");
184 		micro_process_char(micro, ch);
188 static void ipaq_micro_get_version(struct ipaq_micro *micro)
194 	ipaq_micro_tx_msg_sync(micro, &msg);
196 		memcpy(micro->version, msg.rx_data, 4);
197 		micro->version[4] = '\0';
199 		memcpy(micro->version, msg.rx_data, 4);
200 		micro->version[4] = '\0';
203 		dev_err(micro->dev,
208 static void ipaq_micro_eeprom_read(struct ipaq_micro *micro,
220 		ipaq_micro_tx_msg_sync(micro, &msg);
240 static void __init ipaq_micro_eeprom_dump(struct ipaq_micro *micro)
245 	ipaq_micro_eeprom_read(micro, 0, 128, dump);
248 		dev_info(micro->dev, "HW version %s\n", str);
253 		dev_info(micro->dev, "serial number: %s\n", str);
260 		dev_info(micro->dev, "module ID: %s\n", str);
265 		dev_info(micro->dev, "product revision: %s\n", str);
268 	dev_info(micro->dev, "product ID: %u\n", ipaq_micro_to_u16(dump+80));
269 	dev_info(micro->dev, "frame rate: %u fps\n",
271 	dev_info(micro->dev, "page mode: %u\n", ipaq_micro_to_u16(dump+84));
272 	dev_info(micro->dev, "country ID: %u\n", ipaq_micro_to_u16(dump+86));
273 	dev_info(micro->dev, "color display: %s\n",
275 	dev_info(micro->dev, "ROM size: %u MiB\n", ipaq_micro_to_u16(dump+90));
276 	dev_info(micro->dev, "RAM size: %u KiB\n", ipaq_micro_to_u16(dump+92));
277 	dev_info(micro->dev, "screen: %u x %u\n",
281 static void micro_tx_chars(struct ipaq_micro *micro)
283 	struct ipaq_micro_txdev *tx = &micro->tx;
287 	       (readl(micro->base + UTSR1) & UTSR1_TNF)) {
288 		writel(tx->buf[tx->index], micro->base + UTDR);
293 	val = readl(micro->base + UTCR3);
295 	writel(val, micro->base + UTCR3);
298 static void micro_reset_comm(struct ipaq_micro *micro)
300 	struct ipaq_micro_rxdev *rx = &micro->rx;
303 	if (micro->msg)
304 		complete(&micro->msg->ack);
310 	writel(0x01, micro->sdlc + 0x0); /* Select UART mode */
313 	writel(0x0, micro->base + UTCR3);
316 	writel(UTCR0_8BitData | UTCR0_1StpBit, micro->base + UTCR0);
319 	writel(0x0, micro->base + UTCR1);
320 	writel(0x1, micro->base + UTCR2);
323 	writel(0xff, micro->base + UTSR0);
326 	writel(UTCR3_TXE | UTCR3_RXE | UTCR3_RIE, micro->base + UTCR3);
327 	val = readl(micro->base + UTCR3);
329 	writel(val, micro->base + UTCR3);
334 	struct ipaq_micro *micro = dev_id;
335 	struct ipaq_micro_txdev *tx = &micro->tx;
338 	status = readl(micro->base + UTSR0);
343 				writel(UTSR0_RID, micro->base + UTSR0);
344 			micro_rx_chars(micro);
350 			       micro->base + UTSR0);
353 			micro_tx_chars(micro);
355 		status = readl(micro->base + UTSR0);
364 	{ .name = "ipaq-micro-backlight", },
365 	{ .name = "ipaq-micro-battery", },
366 	{ .name = "ipaq-micro-keys", },
367 	{ .name = "ipaq-micro-ts", },
368 	{ .name = "ipaq-micro-leds", },
373 	struct ipaq_micro *micro = dev_get_drvdata(dev);
375 	micro_reset_comm(micro);
383 	struct ipaq_micro *micro;
388 	micro = devm_kzalloc(&pdev->dev, sizeof(*micro), GFP_KERNEL);
389 	if (!micro)
392 	micro->dev = &pdev->dev;
395 	micro->base = devm_ioremap_resource(&pdev->dev, res);
396 	if (IS_ERR(micro->base))
397 		return PTR_ERR(micro->base);
399 	micro->sdlc = devm_platform_ioremap_resource(pdev, 1);
400 	if (IS_ERR(micro->sdlc))
401 		return PTR_ERR(micro->sdlc);
403 	micro_reset_comm(micro);
409 			       IRQF_SHARED, "ipaq-micro",
410 			       micro);
417 	spin_lock_init(&micro->lock);
418 	INIT_LIST_HEAD(&micro->queue);
419 	platform_set_drvdata(pdev, micro);
429 	ipaq_micro_get_version(micro);
430 	dev_info(&pdev->dev, "Atmel micro ASIC version %s\n", micro->version);
431 	ipaq_micro_eeprom_dump(micro);
442 		.name	= "ipaq-h3xxx-micro",