2 * Infinity Unlimited USB Phoenix driver
4 * Copyright (C) 2010 James Courtier-Dutton (James@superbug.co.uk)
6 * Copyright (C) 2007 Alain Degreffe (eczema@ecze.com)
8 * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * And tested with help of WB Electronics
18 #include <linux/kernel.h>
19 #include <linux/errno.h>
20 #include <linux/init.h>
21 #include <linux/slab.h>
22 #include <linux/tty.h>
23 #include <linux/tty_driver.h>
24 #include <linux/tty_flip.h>
25 #include <linux/serial.h>
26 #include <linux/module.h>
27 #include <linux/moduleparam.h>
28 #include <linux/spinlock.h>
29 #include <linux/uaccess.h>
30 #include <linux/usb.h>
31 #include <linux/usb/serial.h>
32 #include "iuu_phoenix.h"
33 #include <linux/random.h>
36 #ifdef CONFIG_USB_SERIAL_DEBUG
45 #define DRIVER_VERSION "v0.12"
46 #define DRIVER_DESC "Infinity USB Unlimited Phoenix driver"
48 static const struct usb_device_id id_table[] = {
49 {USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)},
50 {} /* Terminating entry */
52 MODULE_DEVICE_TABLE(usb, id_table);
54 static struct usb_driver iuu_driver = {
55 .name = "iuu_phoenix",
56 .probe = usb_serial_probe,
57 .disconnect = usb_serial_disconnect,
63 static int boost = 100;
64 static int clockmode = 1;
65 static int cdmode = 1;
66 static int iuu_cardin;
67 static int iuu_cardout;
69 static int vcc_default = 5;
71 static void read_rxcmd_callback(struct urb *urb);
74 spinlock_t lock; /* store irq state */
75 wait_queue_head_t delta_msr_wait;
77 int tiostatus; /* store IUART SIGNAL for tiocmget call */
78 u8 reset; /* if 1 reset is needed */
79 int poll; /* number of poll */
80 u8 *writebuf; /* buffer for writing to device */
81 int writelen; /* num of byte to write to device */
82 u8 *buf; /* used for initialize speed */
83 u8 *dbgbuf; /* debug buffer */
85 int vcc; /* vcc (either 3 or 5 V) */
92 static void iuu_free_buf(struct iuu_private *priv)
96 kfree(priv->writebuf);
99 static int iuu_alloc_buf(struct iuu_private *priv)
101 priv->buf = kzalloc(256, GFP_KERNEL);
102 priv->dbgbuf = kzalloc(256, GFP_KERNEL);
103 priv->writebuf = kzalloc(256, GFP_KERNEL);
104 if (!priv->buf || !priv->dbgbuf || !priv->writebuf) {
106 dbg("%s problem allocation buffer", __func__);
109 dbg("%s - Privates buffers allocation success", __func__);
113 static int iuu_startup(struct usb_serial *serial)
115 unsigned char num_ports = serial->num_ports;
116 struct iuu_private *priv;
118 if (serial->num_bulk_in < num_ports || serial->num_bulk_out < num_ports)
121 priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL);
122 dbg("%s- priv allocation success", __func__);
125 if (iuu_alloc_buf(priv)) {
129 priv->vcc = vcc_default;
130 spin_lock_init(&priv->lock);
131 init_waitqueue_head(&priv->delta_msr_wait);
132 usb_set_serial_port_data(serial->port[0], priv);
136 /* Release function */
137 static void iuu_release(struct usb_serial *serial)
139 struct usb_serial_port *port = serial->port[0];
140 struct iuu_private *priv = usb_get_serial_port_data(port);
148 dbg("%s - I will free all", __func__);
149 usb_set_serial_port_data(port, NULL);
151 dbg("%s - priv is not anymore in port structure", __func__);
154 dbg("%s priv is now kfree", __func__);
158 static int iuu_tiocmset(struct tty_struct *tty,
159 unsigned int set, unsigned int clear)
161 struct usb_serial_port *port = tty->driver_data;
162 struct iuu_private *priv = usb_get_serial_port_data(port);
165 /* FIXME: locking on tiomstatus */
166 dbg("%s (%d) msg : SET = 0x%04x, CLEAR = 0x%04x ", __func__,
167 port->number, set, clear);
169 spin_lock_irqsave(&priv->lock, flags);
171 if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) {
172 dbg("%s TIOCMSET RESET called !!!", __func__);
176 priv->tiostatus = TIOCM_RTS;
178 spin_unlock_irqrestore(&priv->lock, flags);
182 /* This is used to provide a carrier detect mechanism
183 * When a card is present, the response is 0x00
184 * When no card , the reader respond with TIOCM_CD
185 * This is known as CD autodetect mechanism
187 static int iuu_tiocmget(struct tty_struct *tty)
189 struct usb_serial_port *port = tty->driver_data;
190 struct iuu_private *priv = usb_get_serial_port_data(port);
194 spin_lock_irqsave(&priv->lock, flags);
195 rc = priv->tiostatus;
196 spin_unlock_irqrestore(&priv->lock, flags);
201 static void iuu_rxcmd(struct urb *urb)
203 struct usb_serial_port *port = urb->context;
205 int status = urb->status;
207 dbg("%s - enter", __func__);
210 dbg("%s - status = %d", __func__, status);
216 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
217 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
218 usb_sndbulkpipe(port->serial->dev,
219 port->bulk_out_endpointAddress),
220 port->write_urb->transfer_buffer, 1,
221 read_rxcmd_callback, port);
222 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
225 static int iuu_reset(struct usb_serial_port *port, u8 wt)
227 struct iuu_private *priv = usb_get_serial_port_data(port);
229 char *buf_ptr = port->write_urb->transfer_buffer;
230 dbg("%s - enter", __func__);
232 /* Prepare the reset sequence */
234 *buf_ptr++ = IUU_RST_SET;
235 *buf_ptr++ = IUU_DELAY_MS;
237 *buf_ptr = IUU_RST_CLEAR;
239 /* send the sequence */
241 usb_fill_bulk_urb(port->write_urb,
243 usb_sndbulkpipe(port->serial->dev,
244 port->bulk_out_endpointAddress),
245 port->write_urb->transfer_buffer, 4, iuu_rxcmd, port);
246 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
257 static void iuu_update_status_callback(struct urb *urb)
259 struct usb_serial_port *port = urb->context;
260 struct iuu_private *priv = usb_get_serial_port_data(port);
262 int status = urb->status;
264 dbg("%s - enter", __func__);
267 dbg("%s - status = %d", __func__, status);
272 st = urb->transfer_buffer;
273 dbg("%s - enter", __func__);
274 if (urb->actual_length == 1) {
277 priv->tiostatus = iuu_cardout;
280 priv->tiostatus = iuu_cardin;
283 priv->tiostatus = iuu_cardin;
289 static void iuu_status_callback(struct urb *urb)
291 struct usb_serial_port *port = urb->context;
293 int status = urb->status;
295 dbg("%s - status = %d", __func__, status);
296 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
297 usb_rcvbulkpipe(port->serial->dev,
298 port->bulk_in_endpointAddress),
299 port->read_urb->transfer_buffer, 256,
300 iuu_update_status_callback, port);
301 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
304 static int iuu_status(struct usb_serial_port *port)
308 dbg("%s - enter", __func__);
310 memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1);
311 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
312 usb_sndbulkpipe(port->serial->dev,
313 port->bulk_out_endpointAddress),
314 port->write_urb->transfer_buffer, 1,
315 iuu_status_callback, port);
316 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
321 static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
324 struct usb_serial *serial = port->serial;
327 dbg("%s - enter", __func__);
329 /* send the data out the bulk port */
332 usb_bulk_msg(serial->dev,
333 usb_sndbulkpipe(serial->dev,
334 port->bulk_out_endpointAddress), buf,
335 count, &actual, 1000);
337 if (status != IUU_OPERATION_OK)
338 dbg("%s - error = %2x", __func__, status);
340 dbg("%s - write OK !", __func__);
344 static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
347 struct usb_serial *serial = port->serial;
350 dbg("%s - enter", __func__);
352 /* send the data out the bulk port */
355 usb_bulk_msg(serial->dev,
356 usb_rcvbulkpipe(serial->dev,
357 port->bulk_in_endpointAddress), buf,
358 count, &actual, 1000);
360 if (status != IUU_OPERATION_OK)
361 dbg("%s - error = %2x", __func__, status);
363 dbg("%s - read OK !", __func__);
367 static int iuu_led(struct usb_serial_port *port, unsigned int R,
368 unsigned int G, unsigned int B, u8 f)
372 buf = kmalloc(8, GFP_KERNEL);
376 dbg("%s - enter", __func__);
378 buf[0] = IUU_SET_LED;
380 buf[2] = (R >> 8) & 0xFF;
382 buf[4] = (G >> 8) & 0xFF;
384 buf[6] = (B >> 8) & 0xFF;
386 status = bulk_immediate(port, buf, 8);
388 if (status != IUU_OPERATION_OK)
389 dbg("%s - led error status = %2x", __func__, status);
391 dbg("%s - led OK !", __func__);
392 return IUU_OPERATION_OK;
395 static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1,
398 *buf++ = IUU_SET_LED;
408 static void iuu_led_activity_on(struct urb *urb)
410 struct usb_serial_port *port = urb->context;
412 char *buf_ptr = port->write_urb->transfer_buffer;
413 *buf_ptr++ = IUU_SET_LED;
415 get_random_bytes(buf_ptr, 6);
418 iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255);
421 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
422 usb_sndbulkpipe(port->serial->dev,
423 port->bulk_out_endpointAddress),
424 port->write_urb->transfer_buffer, 8 ,
426 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
429 static void iuu_led_activity_off(struct urb *urb)
431 struct usb_serial_port *port = urb->context;
433 char *buf_ptr = port->write_urb->transfer_buffer;
438 *buf_ptr++ = IUU_SET_LED;
439 iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255);
441 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
442 usb_sndbulkpipe(port->serial->dev,
443 port->bulk_out_endpointAddress),
444 port->write_urb->transfer_buffer, 8 ,
446 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
451 static int iuu_clk(struct usb_serial_port *port, int dwFrq)
454 struct iuu_private *priv = usb_get_serial_port_data(port);
457 u8 DIV = 0; /* 8bit */
458 u8 XDRV = 0; /* 8bit */
459 u8 PUMP = 0; /* 3bit */
460 u8 PBmsb = 0; /* 2bit */
461 u8 PBlsb = 0; /* 8bit */
462 u8 PO = 0; /* 1bit */
467 int frq = (int)dwFrq;
469 dbg("%s - enter", __func__);
472 priv->buf[Count++] = IUU_UART_WRITE_I2C;
473 priv->buf[Count++] = FrqGenAdr << 1;
474 priv->buf[Count++] = 0x09;
475 priv->buf[Count++] = 0x00;
477 status = bulk_immediate(port, (u8 *) priv->buf, Count);
479 dbg("%s - write error ", __func__);
482 } else if (frq == 3579000) {
487 } else if (frq == 3680000) {
492 } else if (frq == 6000000) {
498 unsigned int result = 0;
499 unsigned int tmp = 0;
504 unsigned int lP = 2055;
505 unsigned int lDiv = 4;
507 for (lQ = 2; lQ <= 47 && !found; lQ++)
508 for (lP = 2055; lP >= 8 && !found; lP--)
509 for (lDiv = 4; lDiv <= 127 && !found; lDiv++) {
510 tmp = (12000000 / lDiv) * (lP / lQ);
511 if (abs((int)(tmp - frq)) <
512 abs((int)(frq - result))) {
513 check2 = (12000000 / lQ);
516 check = (12000000 / lQ) * lP;
517 if (check > 400000000)
519 if (check < 100000000)
521 if (lDiv < 4 || lDiv > 127)
532 P2 = ((P - PO) / 2) - 4;
535 PBmsb = (P2 >> 8 & 0x03);
537 PO = (P >> 10) & 0x01;
540 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
541 priv->buf[Count++] = FrqGenAdr << 1;
542 priv->buf[Count++] = 0x09;
543 priv->buf[Count++] = 0x20; /* Adr = 0x09 */
544 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
545 priv->buf[Count++] = FrqGenAdr << 1;
546 priv->buf[Count++] = 0x0C;
547 priv->buf[Count++] = DIV; /* Adr = 0x0C */
548 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
549 priv->buf[Count++] = FrqGenAdr << 1;
550 priv->buf[Count++] = 0x12;
551 priv->buf[Count++] = XDRV; /* Adr = 0x12 */
552 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
553 priv->buf[Count++] = FrqGenAdr << 1;
554 priv->buf[Count++] = 0x13;
555 priv->buf[Count++] = 0x6B; /* Adr = 0x13 */
556 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
557 priv->buf[Count++] = FrqGenAdr << 1;
558 priv->buf[Count++] = 0x40;
559 priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) |
560 (PBmsb & 0x03); /* Adr = 0x40 */
561 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
562 priv->buf[Count++] = FrqGenAdr << 1;
563 priv->buf[Count++] = 0x41;
564 priv->buf[Count++] = PBlsb; /* Adr = 0x41 */
565 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
566 priv->buf[Count++] = FrqGenAdr << 1;
567 priv->buf[Count++] = 0x42;
568 priv->buf[Count++] = Q | (((PO & 0x01) << 7)); /* Adr = 0x42 */
569 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
570 priv->buf[Count++] = FrqGenAdr << 1;
571 priv->buf[Count++] = 0x44;
572 priv->buf[Count++] = (char)0xFF; /* Adr = 0x44 */
573 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
574 priv->buf[Count++] = FrqGenAdr << 1;
575 priv->buf[Count++] = 0x45;
576 priv->buf[Count++] = (char)0xFE; /* Adr = 0x45 */
577 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
578 priv->buf[Count++] = FrqGenAdr << 1;
579 priv->buf[Count++] = 0x46;
580 priv->buf[Count++] = 0x7F; /* Adr = 0x46 */
581 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
582 priv->buf[Count++] = FrqGenAdr << 1;
583 priv->buf[Count++] = 0x47;
584 priv->buf[Count++] = (char)0x84; /* Adr = 0x47 */
586 status = bulk_immediate(port, (u8 *) priv->buf, Count);
587 if (status != IUU_OPERATION_OK)
588 dbg("%s - write error ", __func__);
592 static int iuu_uart_flush(struct usb_serial_port *port)
596 u8 rxcmd = IUU_UART_RX;
597 struct iuu_private *priv = usb_get_serial_port_data(port);
599 dbg("%s - enter", __func__);
601 if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0)
604 for (i = 0; i < 2; i++) {
605 status = bulk_immediate(port, &rxcmd, 1);
606 if (status != IUU_OPERATION_OK) {
607 dbg("%s - uart_flush_write error", __func__);
611 status = read_immediate(port, &priv->len, 1);
612 if (status != IUU_OPERATION_OK) {
613 dbg("%s - uart_flush_read error", __func__);
618 dbg("%s - uart_flush datalen is : %i ", __func__,
620 status = read_immediate(port, priv->buf, priv->len);
621 if (status != IUU_OPERATION_OK) {
622 dbg("%s - uart_flush_read error", __func__);
627 dbg("%s - uart_flush_read OK!", __func__);
628 iuu_led(port, 0, 0xF000, 0, 0xFF);
632 static void read_buf_callback(struct urb *urb)
634 struct usb_serial_port *port = urb->context;
635 unsigned char *data = urb->transfer_buffer;
636 struct tty_struct *tty;
637 int status = urb->status;
639 dbg("%s - status = %d", __func__, status);
642 if (status == -EPROTO) {
643 /* reschedule needed */
648 dbg("%s - %i chars to write", __func__, urb->actual_length);
649 tty = tty_port_tty_get(&port->port);
651 dbg("%s - data is NULL !!!", __func__);
652 if (tty && urb->actual_length && data) {
653 tty_insert_flip_string(tty, data, urb->actual_length);
654 tty_flip_buffer_push(tty);
657 iuu_led_activity_on(urb);
660 static int iuu_bulk_write(struct usb_serial_port *port)
662 struct iuu_private *priv = usb_get_serial_port_data(port);
667 char *buf_ptr = port->write_urb->transfer_buffer;
668 dbg("%s - enter", __func__);
670 spin_lock_irqsave(&priv->lock, flags);
671 *buf_ptr++ = IUU_UART_ESC;
672 *buf_ptr++ = IUU_UART_TX;
673 *buf_ptr++ = priv->writelen;
675 memcpy(buf_ptr, priv->writebuf, priv->writelen);
676 buf_len = priv->writelen;
678 spin_unlock_irqrestore(&priv->lock, flags);
680 for (i = 0; i < buf_len; i++)
681 sprintf(priv->dbgbuf + i*2 ,
682 "%02X", priv->writebuf[i]);
683 priv->dbgbuf[buf_len+i*2] = 0;
684 dbg("%s - writing %i chars : %s", __func__,
685 buf_len, priv->dbgbuf);
687 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
688 usb_sndbulkpipe(port->serial->dev,
689 port->bulk_out_endpointAddress),
690 port->write_urb->transfer_buffer, buf_len + 3,
692 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
693 usb_serial_port_softint(port);
697 static int iuu_read_buf(struct usb_serial_port *port, int len)
700 dbg("%s - enter", __func__);
702 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
703 usb_rcvbulkpipe(port->serial->dev,
704 port->bulk_in_endpointAddress),
705 port->read_urb->transfer_buffer, len,
706 read_buf_callback, port);
707 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
711 static void iuu_uart_read_callback(struct urb *urb)
713 struct usb_serial_port *port = urb->context;
714 struct iuu_private *priv = usb_get_serial_port_data(port);
716 int status = urb->status;
719 unsigned char *data = urb->transfer_buffer;
722 dbg("%s - enter", __func__);
725 dbg("%s - status = %d", __func__, status);
730 dbg("%s - data is NULL !!!", __func__);
732 if (urb->actual_length == 1 && data != NULL)
735 if (urb->actual_length > 1) {
736 dbg("%s - urb->actual_length = %i", __func__,
741 /* if len > 0 call readbuf */
743 if (len > 0 && error == 0) {
744 dbg("%s - call read buf - len to read is %i ",
746 status = iuu_read_buf(port, len);
749 /* need to update status ? */
750 if (priv->poll > 99) {
751 status = iuu_status(port);
756 /* reset waiting ? */
758 if (priv->reset == 1) {
759 status = iuu_reset(port, 0xC);
762 /* Writebuf is waiting */
763 spin_lock_irqsave(&priv->lock, flags);
764 if (priv->writelen > 0) {
765 spin_unlock_irqrestore(&priv->lock, flags);
766 status = iuu_bulk_write(port);
769 spin_unlock_irqrestore(&priv->lock, flags);
770 /* if nothing to write call again rxcmd */
771 dbg("%s - rxcmd recall", __func__);
772 iuu_led_activity_off(urb);
775 static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port,
776 const u8 *buf, int count)
778 struct iuu_private *priv = usb_get_serial_port_data(port);
780 dbg("%s - enter", __func__);
785 spin_lock_irqsave(&priv->lock, flags);
787 /* fill the buffer */
788 memcpy(priv->writebuf + priv->writelen, buf, count);
789 priv->writelen += count;
790 spin_unlock_irqrestore(&priv->lock, flags);
795 static void read_rxcmd_callback(struct urb *urb)
797 struct usb_serial_port *port = urb->context;
799 int status = urb->status;
801 dbg("%s - status = %d", __func__, status);
808 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
809 usb_rcvbulkpipe(port->serial->dev,
810 port->bulk_in_endpointAddress),
811 port->read_urb->transfer_buffer, 256,
812 iuu_uart_read_callback, port);
813 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
814 dbg("%s - submit result = %d", __func__, result);
817 static int iuu_uart_on(struct usb_serial_port *port)
822 buf = kmalloc(sizeof(u8) * 4, GFP_KERNEL);
827 buf[0] = IUU_UART_ENABLE;
828 buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF);
829 buf[2] = (u8) (0x00FF & IUU_BAUD_9600);
830 buf[3] = (u8) (0x0F0 & IUU_ONE_STOP_BIT) | (0x07 & IUU_PARITY_EVEN);
832 status = bulk_immediate(port, buf, 4);
833 if (status != IUU_OPERATION_OK) {
834 dbg("%s - uart_on error", __func__);
835 goto uart_enable_failed;
837 /* iuu_reset() the card after iuu_uart_on() */
838 status = iuu_uart_flush(port);
839 if (status != IUU_OPERATION_OK)
840 dbg("%s - uart_flush error", __func__);
846 /* Diables the IUU UART (a.k.a. the Phoenix voiderface) */
847 static int iuu_uart_off(struct usb_serial_port *port)
851 buf = kmalloc(1, GFP_KERNEL);
854 buf[0] = IUU_UART_DISABLE;
856 status = bulk_immediate(port, buf, 1);
857 if (status != IUU_OPERATION_OK)
858 dbg("%s - uart_off error", __func__);
864 static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base,
865 u32 *actual, u8 parity)
873 unsigned int T1FrekvensHZ = 0;
875 dbg("%s - enter baud_base=%d", __func__, baud_base);
876 dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL);
880 /*baud = (((priv->clk / 35) * baud_base) / 100000); */
883 if (baud < 1200 || baud > 230400) {
885 return IUU_INVALID_PARAMETER;
889 T1FrekvensHZ = 500000;
894 T1FrekvensHZ = 2000000;
899 T1FrekvensHZ = 6000000;
904 T1FrekvensHZ = 24000000;
907 T1reload = 256 - (u8) (T1FrekvensHZ / (baud * 2));
909 /* magic number here: ENTER_FIRMWARE_UPDATE; */
910 dataout[DataCount++] = IUU_UART_ESC;
911 /* magic number here: CHANGE_BAUD; */
912 dataout[DataCount++] = IUU_UART_CHANGE;
913 dataout[DataCount++] = T1Frekvens;
914 dataout[DataCount++] = T1reload;
916 *actual = (T1FrekvensHZ / (256 - T1reload)) / 2;
918 switch (parity & 0x0F) {
919 case IUU_PARITY_NONE:
920 dataout[DataCount++] = 0x00;
922 case IUU_PARITY_EVEN:
923 dataout[DataCount++] = 0x01;
926 dataout[DataCount++] = 0x02;
928 case IUU_PARITY_MARK:
929 dataout[DataCount++] = 0x03;
931 case IUU_PARITY_SPACE:
932 dataout[DataCount++] = 0x04;
936 return IUU_INVALID_PARAMETER;
940 switch (parity & 0xF0) {
941 case IUU_ONE_STOP_BIT:
942 dataout[DataCount - 1] |= IUU_ONE_STOP_BIT;
945 case IUU_TWO_STOP_BITS:
946 dataout[DataCount - 1] |= IUU_TWO_STOP_BITS;
950 return IUU_INVALID_PARAMETER;
954 status = bulk_immediate(port, dataout, DataCount);
955 if (status != IUU_OPERATION_OK)
956 dbg("%s - uart_off error", __func__);
961 static void iuu_set_termios(struct tty_struct *tty,
962 struct usb_serial_port *port, struct ktermios *old_termios)
964 const u32 supported_mask = CMSPAR|PARENB|PARODD;
965 struct iuu_private *priv = usb_get_serial_port_data(port);
966 unsigned int cflag = tty->termios->c_cflag;
972 u32 newval = cflag & supported_mask;
974 /* Just use the ospeed. ispeed should be the same. */
975 baud = tty->termios->c_ospeed;
977 dbg("%s - enter c_ospeed or baud=%d", __func__, baud);
979 /* compute the parity parameter */
981 if (cflag & CMSPAR) { /* Using mark space */
983 parity |= IUU_PARITY_SPACE;
985 parity |= IUU_PARITY_MARK;
986 } else if (!(cflag & PARENB)) {
987 parity |= IUU_PARITY_NONE;
989 } else if (cflag & PARODD)
990 parity |= IUU_PARITY_ODD;
992 parity |= IUU_PARITY_EVEN;
994 parity |= (cflag & CSTOPB ? IUU_TWO_STOP_BITS : IUU_ONE_STOP_BIT);
997 status = iuu_uart_baud(port,
998 baud * priv->boost / 100,
1001 /* set the termios value to the real one, so the user now what has
1002 * changed. We support few fields so its easies to copy the old hw
1003 * settings back over and then adjust them
1006 tty_termios_copy_hw(tty->termios, old_termios);
1007 if (status != 0) /* Set failed - return old bits */
1009 /* Re-encode speed, parity and csize */
1010 tty_encode_baud_rate(tty, baud, baud);
1011 tty->termios->c_cflag &= ~(supported_mask|CSIZE);
1012 tty->termios->c_cflag |= newval | csize;
1015 static void iuu_close(struct usb_serial_port *port)
1017 /* iuu_led (port,255,0,0,0); */
1018 struct usb_serial *serial;
1020 serial = port->serial;
1024 dbg("%s - port %d", __func__, port->number);
1029 /* shutdown our urbs */
1030 dbg("%s - shutting down urbs", __func__);
1031 usb_kill_urb(port->write_urb);
1032 usb_kill_urb(port->read_urb);
1033 usb_kill_urb(port->interrupt_in_urb);
1034 iuu_led(port, 0, 0, 0xF000, 0xFF);
1038 static void iuu_init_termios(struct tty_struct *tty)
1040 dbg("%s - enter", __func__);
1041 *(tty->termios) = tty_std_termios;
1042 tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600
1043 | TIOCM_CTS | CSTOPB | PARENB;
1044 tty->termios->c_ispeed = 9600;
1045 tty->termios->c_ospeed = 9600;
1046 tty->termios->c_lflag = 0;
1047 tty->termios->c_oflag = 0;
1048 tty->termios->c_iflag = 0;
1051 static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
1053 struct usb_serial *serial = port->serial;
1058 struct iuu_private *priv = usb_get_serial_port_data(port);
1060 baud = tty->termios->c_ospeed;
1061 tty->termios->c_ispeed = baud;
1062 /* Re-encode speed */
1063 tty_encode_baud_rate(tty, baud, baud);
1065 dbg("%s - port %d, baud %d", __func__, port->number, baud);
1066 usb_clear_halt(serial->dev, port->write_urb->pipe);
1067 usb_clear_halt(serial->dev, port->read_urb->pipe);
1069 buf = kmalloc(10, GFP_KERNEL);
1075 /* initialize writebuf */
1076 #define FISH(a, b, c, d) do { \
1077 result = usb_control_msg(port->serial->dev, \
1078 usb_rcvctrlpipe(port->serial->dev, 0), \
1079 b, a, c, d, buf, 1, 1000); \
1080 dbg("0x%x:0x%x:0x%x:0x%x %d - %x", a, b, c, d, result, \
1081 buf[0]); } while (0);
1083 #define SOUP(a, b, c, d) do { \
1084 result = usb_control_msg(port->serial->dev, \
1085 usb_sndctrlpipe(port->serial->dev, 0), \
1086 b, a, c, d, NULL, 0, 1000); \
1087 dbg("0x%x:0x%x:0x%x:0x%x %d", a, b, c, d, result); } while (0)
1089 /* This is not UART related but IUU USB driver related or something */
1090 /* like that. Basically no IUU will accept any commands from the USB */
1091 /* host unless it has received the following message */
1092 /* sprintf(buf ,"%c%c%c%c",0x03,0x02,0x02,0x0); */
1094 SOUP(0x03, 0x02, 0x02, 0x0);
1096 iuu_led(port, 0xF000, 0xF000, 0, 0xFF);
1100 priv->boost = boost;
1102 switch (clockmode) {
1103 case 2: /* 3.680 Mhz */
1104 priv->clk = IUU_CLK_3680000;
1105 iuu_clk(port, IUU_CLK_3680000 * boost / 100);
1107 iuu_uart_baud(port, baud * boost / 100, &actual,
1110 case 3: /* 6.00 Mhz */
1111 iuu_clk(port, IUU_CLK_6000000 * boost / 100);
1112 priv->clk = IUU_CLK_6000000;
1113 /* Ratio of 6000000 to 3500000 for baud 9600 */
1115 iuu_uart_baud(port, 16457 * boost / 100, &actual,
1118 default: /* 3.579 Mhz */
1119 iuu_clk(port, IUU_CLK_3579000 * boost / 100);
1120 priv->clk = IUU_CLK_3579000;
1122 iuu_uart_baud(port, baud * boost / 100, &actual,
1126 /* set the cardin cardout signals */
1133 iuu_cardin = TIOCM_CD;
1138 iuu_cardout = TIOCM_CD;
1141 iuu_cardin = TIOCM_DSR;
1146 iuu_cardout = TIOCM_DSR;
1149 iuu_cardin = TIOCM_CTS;
1154 iuu_cardout = TIOCM_CTS;
1157 iuu_cardin = TIOCM_RNG;
1162 iuu_cardout = TIOCM_RNG;
1165 iuu_uart_flush(port);
1167 dbg("%s - initialization done", __func__);
1169 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
1170 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1171 usb_sndbulkpipe(port->serial->dev,
1172 port->bulk_out_endpointAddress),
1173 port->write_urb->transfer_buffer, 1,
1174 read_rxcmd_callback, port);
1175 result = usb_submit_urb(port->write_urb, GFP_KERNEL);
1178 dev_err(&port->dev, "%s - failed submitting read urb,"
1179 " error %d\n", __func__, result);
1183 dbg("%s - rxcmd OK", __func__);
1188 /* how to change VCC */
1189 static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc)
1194 buf = kmalloc(5, GFP_KERNEL);
1198 dbg("%s - enter", __func__);
1200 buf[0] = IUU_SET_VCC;
1201 buf[1] = vcc & 0xFF;
1202 buf[2] = (vcc >> 8) & 0xFF;
1203 buf[3] = (vcc >> 16) & 0xFF;
1204 buf[4] = (vcc >> 24) & 0xFF;
1206 status = bulk_immediate(port, buf, 5);
1209 if (status != IUU_OPERATION_OK)
1210 dbg("%s - vcc error status = %2x", __func__, status);
1212 dbg("%s - vcc OK !", __func__);
1221 static ssize_t show_vcc_mode(struct device *dev,
1222 struct device_attribute *attr, char *buf)
1224 struct usb_serial_port *port = to_usb_serial_port(dev);
1225 struct iuu_private *priv = usb_get_serial_port_data(port);
1227 return sprintf(buf, "%d\n", priv->vcc);
1230 static ssize_t store_vcc_mode(struct device *dev,
1231 struct device_attribute *attr, const char *buf, size_t count)
1233 struct usb_serial_port *port = to_usb_serial_port(dev);
1234 struct iuu_private *priv = usb_get_serial_port_data(port);
1237 if (strict_strtoul(buf, 10, &v)) {
1238 dev_err(dev, "%s - vcc_mode: %s is not a unsigned long\n",
1240 goto fail_store_vcc_mode;
1243 dbg("%s: setting vcc_mode = %ld", __func__, v);
1245 if ((v != 3) && (v != 5)) {
1246 dev_err(dev, "%s - vcc_mode %ld is invalid\n", __func__, v);
1248 iuu_vcc_set(port, v);
1251 fail_store_vcc_mode:
1255 static DEVICE_ATTR(vcc_mode, S_IRUSR | S_IWUSR, show_vcc_mode,
1258 static int iuu_create_sysfs_attrs(struct usb_serial_port *port)
1260 dbg("%s", __func__);
1262 return device_create_file(&port->dev, &dev_attr_vcc_mode);
1265 static int iuu_remove_sysfs_attrs(struct usb_serial_port *port)
1267 dbg("%s", __func__);
1269 device_remove_file(&port->dev, &dev_attr_vcc_mode);
1274 * End Sysfs Attributes
1277 static struct usb_serial_driver iuu_device = {
1279 .owner = THIS_MODULE,
1280 .name = "iuu_phoenix",
1282 .id_table = id_table,
1283 .usb_driver = &iuu_driver,
1285 .bulk_in_size = 512,
1286 .bulk_out_size = 512,
1287 .port_probe = iuu_create_sysfs_attrs,
1288 .port_remove = iuu_remove_sysfs_attrs,
1291 .write = iuu_uart_write,
1292 .read_bulk_callback = iuu_uart_read_callback,
1293 .tiocmget = iuu_tiocmget,
1294 .tiocmset = iuu_tiocmset,
1295 .set_termios = iuu_set_termios,
1296 .init_termios = iuu_init_termios,
1297 .attach = iuu_startup,
1298 .release = iuu_release,
1301 static int __init iuu_init(void)
1304 retval = usb_serial_register(&iuu_device);
1306 goto failed_usb_serial_register;
1307 retval = usb_register(&iuu_driver);
1309 goto failed_usb_register;
1310 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
1313 failed_usb_register:
1314 usb_serial_deregister(&iuu_device);
1315 failed_usb_serial_register:
1319 static void __exit iuu_exit(void)
1321 usb_deregister(&iuu_driver);
1322 usb_serial_deregister(&iuu_device);
1325 module_init(iuu_init);
1326 module_exit(iuu_exit);
1328 MODULE_AUTHOR("Alain Degreffe eczema@ecze.com");
1330 MODULE_DESCRIPTION(DRIVER_DESC);
1331 MODULE_LICENSE("GPL");
1333 MODULE_VERSION(DRIVER_VERSION);
1334 module_param(debug, bool, S_IRUGO | S_IWUSR);
1335 MODULE_PARM_DESC(debug, "Debug enabled or not");
1337 module_param(xmas, bool, S_IRUGO | S_IWUSR);
1338 MODULE_PARM_DESC(xmas, "Xmas colors enabled or not");
1340 module_param(boost, int, S_IRUGO | S_IWUSR);
1341 MODULE_PARM_DESC(boost, "Card overclock boost (in percent 100-500)");
1343 module_param(clockmode, int, S_IRUGO | S_IWUSR);
1344 MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, "
1347 module_param(cdmode, int, S_IRUGO | S_IWUSR);
1348 MODULE_PARM_DESC(cdmode, "Card detect mode (0=none, 1=CD, 2=!CD, 3=DSR, "
1349 "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING)");
1351 module_param(vcc_default, int, S_IRUGO | S_IWUSR);
1352 MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 "
1353 "for 5V). Default to 5.");