Lines Matching refs:micro
34 static void ipaq_micro_trigger_tx(struct ipaq_micro *micro) in ipaq_micro_trigger_tx() argument
36 struct ipaq_micro_txdev *tx = µ->tx; in ipaq_micro_trigger_tx()
37 struct ipaq_micro_msg *msg = micro->msg; in ipaq_micro_trigger_tx()
60 val = readl(micro->base + UTCR3); in ipaq_micro_trigger_tx()
62 writel(val, micro->base + UTCR3); in ipaq_micro_trigger_tx()
65 int ipaq_micro_tx_msg(struct ipaq_micro *micro, struct ipaq_micro_msg *msg) in ipaq_micro_tx_msg() argument
69 dev_dbg(micro->dev, "TX msg: %02x, %d bytes\n", msg->id, msg->tx_len); in ipaq_micro_tx_msg()
71 spin_lock_irqsave(µ->lock, flags); in ipaq_micro_tx_msg()
72 if (micro->msg) { in ipaq_micro_tx_msg()
73 list_add_tail(&msg->node, µ->queue); in ipaq_micro_tx_msg()
74 spin_unlock_irqrestore(µ->lock, flags); in ipaq_micro_tx_msg()
77 micro->msg = msg; in ipaq_micro_tx_msg()
78 ipaq_micro_trigger_tx(micro); in ipaq_micro_tx_msg()
79 spin_unlock_irqrestore(µ->lock, flags); in ipaq_micro_tx_msg()
84 static void micro_rx_msg(struct ipaq_micro *micro, u8 id, int len, u8 *data) in micro_rx_msg() argument
88 dev_dbg(micro->dev, "RX msg: %02x, %d bytes\n", id, len); in micro_rx_msg()
90 spin_lock(µ->lock); in micro_rx_msg()
100 if (micro->msg && micro->msg->id == id) { in micro_rx_msg()
101 struct ipaq_micro_msg *msg = micro->msg; in micro_rx_msg()
105 complete(µ->msg->ack); in micro_rx_msg()
106 if (!list_empty(µ->queue)) { in micro_rx_msg()
107 micro->msg = list_entry(micro->queue.next, in micro_rx_msg()
110 list_del_init(µ->msg->node); in micro_rx_msg()
111 ipaq_micro_trigger_tx(micro); in micro_rx_msg()
113 micro->msg = NULL; in micro_rx_msg()
114 dev_dbg(micro->dev, "OK RX message 0x%02x\n", id); in micro_rx_msg()
116 dev_err(micro->dev, in micro_rx_msg()
118 if (!micro->msg) in micro_rx_msg()
119 dev_info(micro->dev, "no message queued\n"); in micro_rx_msg()
121 dev_info(micro->dev, "expected message %02x\n", in micro_rx_msg()
122 micro->msg->id); in micro_rx_msg()
126 if (micro->key) in micro_rx_msg()
127 micro->key(micro->key_data, len, data); in micro_rx_msg()
129 dev_dbg(micro->dev, "key message ignored, no handle\n"); in micro_rx_msg()
132 if (micro->ts) in micro_rx_msg()
133 micro->ts(micro->ts_data, len, data); in micro_rx_msg()
135 dev_dbg(micro->dev, "touchscreen message ignored, no handle\n"); in micro_rx_msg()
138 dev_err(micro->dev, in micro_rx_msg()
144 spin_unlock(µ->lock); in micro_rx_msg()
147 static void micro_process_char(struct ipaq_micro *micro, u8 ch) in micro_process_char() argument
149 struct ipaq_micro_rxdev *rx = µ->rx; in micro_process_char()
171 micro_rx_msg(micro, rx->id, rx->len, rx->buf); in micro_process_char()
177 static void micro_rx_chars(struct ipaq_micro *micro) in micro_rx_chars() argument
181 while ((status = readl(micro->base + UTSR1)) & UTSR1_RNE) { in micro_rx_chars()
182 ch = readl(micro->base + UTDR); in micro_rx_chars()
184 dev_err(micro->dev, "rx: parity error\n"); in micro_rx_chars()
186 dev_err(micro->dev, "rx: framing error\n"); in micro_rx_chars()
188 dev_err(micro->dev, "rx: overrun error\n"); in micro_rx_chars()
189 micro_process_char(micro, ch); in micro_rx_chars()
193 static void ipaq_micro_get_version(struct ipaq_micro *micro) in ipaq_micro_get_version() argument
199 ipaq_micro_tx_msg_sync(micro, &msg); in ipaq_micro_get_version()
201 memcpy(micro->version, msg.rx_data, 4); in ipaq_micro_get_version()
202 micro->version[4] = '\0'; in ipaq_micro_get_version()
204 memcpy(micro->version, msg.rx_data, 4); in ipaq_micro_get_version()
205 micro->version[4] = '\0'; in ipaq_micro_get_version()
208 dev_err(micro->dev, in ipaq_micro_get_version()
213 static void ipaq_micro_eeprom_read(struct ipaq_micro *micro, in ipaq_micro_eeprom_read() argument
225 ipaq_micro_tx_msg_sync(micro, &msg); in ipaq_micro_eeprom_read()
245 static void ipaq_micro_eeprom_dump(struct ipaq_micro *micro) in ipaq_micro_eeprom_dump() argument
250 ipaq_micro_eeprom_read(micro, 0, 128, dump); in ipaq_micro_eeprom_dump()
253 dev_info(micro->dev, "HM version %s\n", str); in ipaq_micro_eeprom_dump()
258 dev_info(micro->dev, "serial number: %s\n", str); in ipaq_micro_eeprom_dump()
265 dev_info(micro->dev, "module ID: %s\n", str); in ipaq_micro_eeprom_dump()
270 dev_info(micro->dev, "product revision: %s\n", str); in ipaq_micro_eeprom_dump()
273 dev_info(micro->dev, "product ID: %u\n", ipaq_micro_to_u16(dump+80)); in ipaq_micro_eeprom_dump()
274 dev_info(micro->dev, "frame rate: %u fps\n", in ipaq_micro_eeprom_dump()
276 dev_info(micro->dev, "page mode: %u\n", ipaq_micro_to_u16(dump+84)); in ipaq_micro_eeprom_dump()
277 dev_info(micro->dev, "country ID: %u\n", ipaq_micro_to_u16(dump+86)); in ipaq_micro_eeprom_dump()
278 dev_info(micro->dev, "color display: %s\n", in ipaq_micro_eeprom_dump()
280 dev_info(micro->dev, "ROM size: %u MiB\n", ipaq_micro_to_u16(dump+90)); in ipaq_micro_eeprom_dump()
281 dev_info(micro->dev, "RAM size: %u KiB\n", ipaq_micro_to_u16(dump+92)); in ipaq_micro_eeprom_dump()
282 dev_info(micro->dev, "screen: %u x %u\n", in ipaq_micro_eeprom_dump()
289 static void micro_tx_chars(struct ipaq_micro *micro) in micro_tx_chars() argument
291 struct ipaq_micro_txdev *tx = µ->tx; in micro_tx_chars()
295 (readl(micro->base + UTSR1) & UTSR1_TNF)) { in micro_tx_chars()
296 writel(tx->buf[tx->index], micro->base + UTDR); in micro_tx_chars()
301 val = readl(micro->base + UTCR3); in micro_tx_chars()
303 writel(val, micro->base + UTCR3); in micro_tx_chars()
306 static void micro_reset_comm(struct ipaq_micro *micro) in micro_reset_comm() argument
308 struct ipaq_micro_rxdev *rx = µ->rx; in micro_reset_comm()
311 if (micro->msg) in micro_reset_comm()
312 complete(µ->msg->ack); in micro_reset_comm()
318 writel(0x01, micro->sdlc + 0x0); /* Select UART mode */ in micro_reset_comm()
321 writel(0x0, micro->base + UTCR3); in micro_reset_comm()
324 writel(UTCR0_8BitData | UTCR0_1StpBit, micro->base + UTCR0); in micro_reset_comm()
327 writel(0x0, micro->base + UTCR1); in micro_reset_comm()
328 writel(0x1, micro->base + UTCR2); in micro_reset_comm()
331 writel(0xff, micro->base + UTSR0); in micro_reset_comm()
334 writel(UTCR3_TXE | UTCR3_RXE | UTCR3_RIE, micro->base + UTCR3); in micro_reset_comm()
335 val = readl(micro->base + UTCR3); in micro_reset_comm()
337 writel(val, micro->base + UTCR3); in micro_reset_comm()
342 struct ipaq_micro *micro = dev_id; in micro_serial_isr() local
343 struct ipaq_micro_txdev *tx = µ->tx; in micro_serial_isr()
346 status = readl(micro->base + UTSR0); in micro_serial_isr()
351 writel(UTSR0_RID, micro->base + UTSR0); in micro_serial_isr()
352 micro_rx_chars(micro); in micro_serial_isr()
358 micro->base + UTSR0); in micro_serial_isr()
361 micro_tx_chars(micro); in micro_serial_isr()
363 status = readl(micro->base + UTSR0); in micro_serial_isr()
381 struct ipaq_micro *micro = dev_get_drvdata(dev); in micro_resume() local
383 micro_reset_comm(micro); in micro_resume()
391 struct ipaq_micro *micro; in micro_probe() local
396 micro = devm_kzalloc(&pdev->dev, sizeof(*micro), GFP_KERNEL); in micro_probe()
397 if (!micro) in micro_probe()
400 micro->dev = &pdev->dev; in micro_probe()
406 micro->base = devm_ioremap_resource(&pdev->dev, res); in micro_probe()
407 if (IS_ERR(micro->base)) in micro_probe()
408 return PTR_ERR(micro->base); in micro_probe()
414 micro->sdlc = devm_ioremap_resource(&pdev->dev, res); in micro_probe()
415 if (IS_ERR(micro->sdlc)) in micro_probe()
416 return PTR_ERR(micro->sdlc); in micro_probe()
418 micro_reset_comm(micro); in micro_probe()
425 micro); in micro_probe()
432 spin_lock_init(µ->lock); in micro_probe()
433 INIT_LIST_HEAD(µ->queue); in micro_probe()
434 platform_set_drvdata(pdev, micro); in micro_probe()
444 ipaq_micro_get_version(micro); in micro_probe()
445 dev_info(&pdev->dev, "Atmel micro ASIC version %s\n", micro->version); in micro_probe()
446 ipaq_micro_eeprom_dump(micro); in micro_probe()
453 struct ipaq_micro *micro = platform_get_drvdata(pdev); in micro_remove() local
458 val = readl(micro->base + UTCR3); in micro_remove()
461 writel(val, micro->base + UTCR3); in micro_remove()