2 cx231xx-core.c - driver for Conexant Cx23100/101/102
3 USB video capture devices
5 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include <linux/init.h>
24 #include <linux/list.h>
25 #include <linux/module.h>
26 #include <linux/slab.h>
27 #include <linux/usb.h>
28 #include <linux/vmalloc.h>
29 #include <media/v4l2-common.h>
32 #include "cx231xx-reg.h"
34 /* #define ENABLE_DEBUG_ISOC_FRAMES */
36 static unsigned int core_debug;
37 module_param(core_debug, int, 0644);
38 MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
40 #define cx231xx_coredbg(fmt, arg...) do {\
42 printk(KERN_INFO "%s %s :"fmt, \
43 dev->name, __func__ , ##arg); } while (0)
45 static unsigned int reg_debug;
46 module_param(reg_debug, int, 0644);
47 MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
49 #define cx231xx_regdbg(fmt, arg...) do {\
51 printk(KERN_INFO "%s %s :"fmt, \
52 dev->name, __func__ , ##arg); } while (0)
54 static int alt = CX231XX_PINOUT;
55 module_param(alt, int, 0644);
56 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
58 #define cx231xx_isocdbg(fmt, arg...) do {\
60 printk(KERN_INFO "%s %s :"fmt, \
61 dev->name, __func__ , ##arg); } while (0)
63 /*****************************************************************
64 * Device control list functions *
65 ******************************************************************/
67 static LIST_HEAD(cx231xx_devlist);
68 static DEFINE_MUTEX(cx231xx_devlist_mutex);
71 * cx231xx_realease_resources()
72 * unregisters the v4l2,i2c and usb devices
73 * called when the device gets disconected or at module unload
75 void cx231xx_remove_from_devlist(struct cx231xx *dev)
77 mutex_lock(&cx231xx_devlist_mutex);
78 list_del(&dev->devlist);
79 mutex_unlock(&cx231xx_devlist_mutex);
82 void cx231xx_add_into_devlist(struct cx231xx *dev)
84 mutex_lock(&cx231xx_devlist_mutex);
85 list_add_tail(&dev->devlist, &cx231xx_devlist);
86 mutex_unlock(&cx231xx_devlist_mutex);
89 static LIST_HEAD(cx231xx_extension_devlist);
90 static DEFINE_MUTEX(cx231xx_extension_devlist_lock);
92 int cx231xx_register_extension(struct cx231xx_ops *ops)
94 struct cx231xx *dev = NULL;
96 mutex_lock(&cx231xx_devlist_mutex);
97 mutex_lock(&cx231xx_extension_devlist_lock);
98 list_add_tail(&ops->next, &cx231xx_extension_devlist);
99 list_for_each_entry(dev, &cx231xx_devlist, devlist) {
103 printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name);
104 mutex_unlock(&cx231xx_extension_devlist_lock);
105 mutex_unlock(&cx231xx_devlist_mutex);
108 EXPORT_SYMBOL(cx231xx_register_extension);
110 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
112 struct cx231xx *dev = NULL;
114 mutex_lock(&cx231xx_devlist_mutex);
115 list_for_each_entry(dev, &cx231xx_devlist, devlist) {
120 mutex_lock(&cx231xx_extension_devlist_lock);
121 printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name);
122 list_del(&ops->next);
123 mutex_unlock(&cx231xx_extension_devlist_lock);
124 mutex_unlock(&cx231xx_devlist_mutex);
126 EXPORT_SYMBOL(cx231xx_unregister_extension);
128 void cx231xx_init_extension(struct cx231xx *dev)
130 struct cx231xx_ops *ops = NULL;
132 mutex_lock(&cx231xx_extension_devlist_lock);
133 if (!list_empty(&cx231xx_extension_devlist)) {
134 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
139 mutex_unlock(&cx231xx_extension_devlist_lock);
142 void cx231xx_close_extension(struct cx231xx *dev)
144 struct cx231xx_ops *ops = NULL;
146 mutex_lock(&cx231xx_extension_devlist_lock);
147 if (!list_empty(&cx231xx_extension_devlist)) {
148 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
153 mutex_unlock(&cx231xx_extension_devlist_lock);
156 /****************************************************************
157 * U S B related functions *
158 *****************************************************************/
159 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
160 struct cx231xx_i2c_xfer_data *req_data)
163 struct cx231xx *dev = i2c_bus->dev;
164 struct VENDOR_REQUEST_IN ven_req;
171 /* Get the I2C period, nostop and reserve parameters */
172 _i2c_period = i2c_bus->i2c_period;
173 _i2c_nostop = i2c_bus->i2c_nostop;
174 _i2c_reserve = i2c_bus->i2c_reserve;
176 saddr_len = req_data->saddr_len;
179 if (saddr_len == 1) /* need check saddr_len == 0 */
182 dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
183 _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
187 dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
188 _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
190 /* set channel number */
191 if (req_data->direction & I2C_M_RD) {
192 /* channel number, for read,spec required channel_num +4 */
193 ven_req.bRequest = i2c_bus->nr + 4;
195 ven_req.bRequest = i2c_bus->nr; /* channel number, */
197 /* set index value */
200 ven_req.wIndex = 0; /* need check */
203 ven_req.wIndex = (req_data->saddr_dat & 0xff);
206 ven_req.wIndex = req_data->saddr_dat;
210 /* set wLength value */
211 ven_req.wLength = req_data->buf_size;
213 /* set bData value */
216 /* set the direction */
217 if (req_data->direction) {
218 ven_req.direction = USB_DIR_IN;
219 memset(req_data->p_buffer, 0x00, ven_req.wLength);
221 ven_req.direction = USB_DIR_OUT;
223 /* set the buffer for read / write */
224 ven_req.pBuff = req_data->p_buffer;
227 /* call common vendor command request */
228 status = cx231xx_send_vendor_cmd(dev, &ven_req);
231 ("UsbInterface::sendCommand, failed with status -%d\n",
237 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
240 * cx231xx_read_ctrl_reg()
241 * reads data from the usb device specifying bRequest and wValue
243 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
248 int pipe = usb_rcvctrlpipe(dev->udev, 0);
250 if (dev->state & DEV_DISCONNECTED)
253 if (len > URB_MAX_CTRL_SIZE)
258 val = ENABLE_ONE_BYTE;
261 val = ENABLE_TWE_BYTE;
264 val = ENABLE_THREE_BYTE;
267 val = ENABLE_FOUR_BYTE;
270 val = 0xFF; /* invalid option */
277 cx231xx_isocdbg("(pipe 0x%08x): "
278 "IN: %02x %02x %02x %02x %02x %02x %02x %02x ",
280 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
282 reg & 0xff, reg >> 8, len & 0xff, len >> 8);
285 mutex_lock(&dev->ctrl_urb_lock);
286 ret = usb_control_msg(dev->udev, pipe, req,
287 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
288 val, reg, dev->urb_buf, len, HZ);
290 cx231xx_isocdbg(" failed!\n");
291 /* mutex_unlock(&dev->ctrl_urb_lock); */
296 memcpy(buf, dev->urb_buf, len);
298 mutex_unlock(&dev->ctrl_urb_lock);
303 cx231xx_isocdbg("<<<");
304 for (byte = 0; byte < len; byte++)
305 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
306 cx231xx_isocdbg("\n");
312 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
313 struct VENDOR_REQUEST_IN *ven_req)
318 if (dev->state & DEV_DISCONNECTED)
321 if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
324 if (ven_req->direction)
325 pipe = usb_rcvctrlpipe(dev->udev, 0);
327 pipe = usb_sndctrlpipe(dev->udev, 0);
332 cx231xx_isocdbg("(pipe 0x%08x): "
333 "OUT: %02x %02x %02x %04x %04x %04x >>>",
336 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
337 ven_req->bRequest, 0, ven_req->wValue,
338 ven_req->wIndex, ven_req->wLength);
340 for (byte = 0; byte < ven_req->wLength; byte++)
341 cx231xx_isocdbg(" %02x",
342 (unsigned char)ven_req->pBuff[byte]);
343 cx231xx_isocdbg("\n");
346 mutex_lock(&dev->ctrl_urb_lock);
347 ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
349 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
350 ven_req->wValue, ven_req->wIndex, ven_req->pBuff,
351 ven_req->wLength, HZ);
352 mutex_unlock(&dev->ctrl_urb_lock);
358 * cx231xx_write_ctrl_reg()
359 * sends data to the usb device, specifying bRequest
361 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
366 int pipe = usb_sndctrlpipe(dev->udev, 0);
368 if (dev->state & DEV_DISCONNECTED)
371 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
376 val = ENABLE_ONE_BYTE;
379 val = ENABLE_TWE_BYTE;
382 val = ENABLE_THREE_BYTE;
385 val = ENABLE_FOUR_BYTE;
388 val = 0xFF; /* invalid option */
397 cx231xx_isocdbg("(pipe 0x%08x): "
398 "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
400 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
401 req, 0, val, reg & 0xff,
402 reg >> 8, len & 0xff, len >> 8);
404 for (byte = 0; byte < len; byte++)
405 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
406 cx231xx_isocdbg("\n");
409 mutex_lock(&dev->ctrl_urb_lock);
410 memcpy(dev->urb_buf, buf, len);
411 ret = usb_control_msg(dev->udev, pipe, req,
412 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
413 val, reg, dev->urb_buf, len, HZ);
414 mutex_unlock(&dev->ctrl_urb_lock);
419 /****************************************************************
420 * USB Alternate Setting functions *
421 *****************************************************************/
423 int cx231xx_set_video_alternate(struct cx231xx *dev)
425 int errCode, prev_alt = dev->video_mode.alt;
426 unsigned int min_pkt_size = dev->width * 2 + 4;
427 u32 usb_interface_index = 0;
429 /* When image size is bigger than a certain value,
430 the frame size should be increased, otherwise, only
431 green screen will be received.
433 if (dev->width * 2 * dev->height > 720 * 240 * 2)
436 if (dev->width > 360) {
437 /* resolutions: 720,704,640 */
438 dev->video_mode.alt = 3;
439 } else if (dev->width > 180) {
440 /* resolutions: 360,352,320,240 */
441 dev->video_mode.alt = 2;
442 } else if (dev->width > 0) {
443 /* resolutions: 180,176,160,128,88 */
444 dev->video_mode.alt = 1;
446 /* Change to alt0 BULK to release USB bandwidth */
447 dev->video_mode.alt = 0;
450 /* Get the correct video interface Index */
451 usb_interface_index =
452 dev->current_pcb_config.hs_config_info[0].interface_info.
455 if (dev->video_mode.alt != prev_alt) {
456 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
457 min_pkt_size, dev->video_mode.alt);
458 dev->video_mode.max_pkt_size =
459 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
460 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
462 dev->video_mode.max_pkt_size);
464 (" setting alt %d with wMaxPktSize=%u , Interface = %d\n",
465 dev->video_mode.alt, dev->video_mode.max_pkt_size,
466 usb_interface_index);
468 usb_set_interface(dev->udev, usb_interface_index,
469 dev->video_mode.alt);
472 ("cannot change alt number to %d (error=%i)\n",
473 dev->video_mode.alt, errCode);
480 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
483 u32 usb_interface_index = 0;
484 u32 max_pkt_size = 0;
488 usb_interface_index =
489 dev->current_pcb_config.hs_config_info[0].interface_info.
491 dev->video_mode.alt = alt;
492 if (dev->ts1_mode.alt_max_pkt_size != NULL)
493 max_pkt_size = dev->ts1_mode.max_pkt_size =
494 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
497 usb_interface_index =
498 dev->current_pcb_config.hs_config_info[0].interface_info.
502 usb_interface_index =
503 dev->current_pcb_config.hs_config_info[0].interface_info.
506 if (dev->adev.alt_max_pkt_size != NULL)
507 max_pkt_size = dev->adev.max_pkt_size =
508 dev->adev.alt_max_pkt_size[dev->adev.alt];
511 usb_interface_index =
512 dev->current_pcb_config.hs_config_info[0].interface_info.
514 dev->video_mode.alt = alt;
515 if (dev->video_mode.alt_max_pkt_size != NULL)
516 max_pkt_size = dev->video_mode.max_pkt_size =
517 dev->video_mode.alt_max_pkt_size[dev->video_mode.
521 usb_interface_index =
522 dev->current_pcb_config.hs_config_info[0].interface_info.
524 dev->vbi_mode.alt = alt;
525 if (dev->vbi_mode.alt_max_pkt_size != NULL)
526 max_pkt_size = dev->vbi_mode.max_pkt_size =
527 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
530 usb_interface_index =
531 dev->current_pcb_config.hs_config_info[0].interface_info.
533 dev->sliced_cc_mode.alt = alt;
534 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
535 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
536 dev->sliced_cc_mode.alt_max_pkt_size[dev->
544 if (alt > 0 && max_pkt_size == 0) {
546 ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
547 usb_interface_index, alt);
552 (" setting alternate %d with wMaxPacketSize=%u , Interface = %d\n",
553 alt, max_pkt_size, usb_interface_index);
555 if (usb_interface_index > 0) {
556 status = usb_set_interface(dev->udev, usb_interface_index, alt);
559 ("can't change interface %d alt no. to %d (err=%i)\n",
560 usb_interface_index, alt, status);
567 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
569 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
576 /* Send GPIO reset sequences specified at board entry */
577 while (gpio->sleep >= 0) {
578 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
590 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
592 if (dev->mode == set_mode)
595 if (set_mode == CX231XX_SUSPEND) {
596 /* Set the chip in power saving mode */
597 dev->mode = set_mode;
600 /* Resource is locked */
601 if (dev->mode != CX231XX_SUSPEND)
604 dev->mode = set_mode;
606 if (dev->mode == CX231XX_DIGITAL_MODE)
607 ;/* Set Digital power mode */
609 ;/* Set Analog Power mode */
613 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
615 /*****************************************************************
616 * URB Streaming functions *
617 ******************************************************************/
620 * IRQ callback, called by URB callback
622 static void cx231xx_irq_callback(struct urb *urb)
624 struct cx231xx_dmaqueue *dma_q = urb->context;
625 struct cx231xx_video_mode *vmode =
626 container_of(dma_q, struct cx231xx_video_mode, vidq);
627 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
630 switch (urb->status) {
631 case 0: /* success */
632 case -ETIMEDOUT: /* NAK */
634 case -ECONNRESET: /* kill */
639 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
643 /* Copy data from URB */
644 spin_lock(&dev->video_mode.slock);
645 rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
646 spin_unlock(&dev->video_mode.slock);
648 /* Reset urb buffers */
649 for (i = 0; i < urb->number_of_packets; i++) {
650 urb->iso_frame_desc[i].status = 0;
651 urb->iso_frame_desc[i].actual_length = 0;
655 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
657 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
663 * Stop and Deallocate URBs
665 void cx231xx_uninit_isoc(struct cx231xx *dev)
670 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
672 dev->video_mode.isoc_ctl.nfields = -1;
673 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
674 urb = dev->video_mode.isoc_ctl.urb[i];
676 if (!irqs_disabled())
681 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
682 usb_buffer_free(dev->udev,
683 urb->transfer_buffer_length,
684 dev->video_mode.isoc_ctl.
689 dev->video_mode.isoc_ctl.urb[i] = NULL;
691 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
694 kfree(dev->video_mode.isoc_ctl.urb);
695 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
697 dev->video_mode.isoc_ctl.urb = NULL;
698 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
699 dev->video_mode.isoc_ctl.num_bufs = 0;
701 cx231xx_capture_start(dev, 0, Raw_Video);
703 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
706 * Allocate URBs and start IRQ
708 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
709 int num_bufs, int max_pkt_size,
710 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
712 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
719 cx231xx_isocdbg("cx231xx: called cx231xx_prepare_isoc\n");
721 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
723 cx231xx_info("Setting Video mux to %d\n", dev->video_input);
724 video_mux(dev, dev->video_input);
726 /* De-allocates all pending stuff */
727 cx231xx_uninit_isoc(dev);
729 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
730 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
732 dma_q->is_partial_line = 0;
734 dma_q->current_field = -1;
735 dma_q->field1_done = 0;
736 dma_q->lines_per_field = dev->height / 2;
737 dma_q->bytes_left_in_line = dev->width << 1;
738 dma_q->lines_completed = 0;
739 for (i = 0; i < 8; i++)
740 dma_q->partial_buf[i] = 0;
742 dev->video_mode.isoc_ctl.urb =
743 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
744 if (!dev->video_mode.isoc_ctl.urb) {
745 cx231xx_errdev("cannot alloc memory for usb buffers\n");
749 dev->video_mode.isoc_ctl.transfer_buffer =
750 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
751 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
752 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
753 kfree(dev->video_mode.isoc_ctl.urb);
757 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
758 dev->video_mode.isoc_ctl.buf = NULL;
760 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
762 /* allocate urbs and transfer buffers */
763 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
764 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
766 cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i);
767 cx231xx_uninit_isoc(dev);
770 dev->video_mode.isoc_ctl.urb[i] = urb;
772 dev->video_mode.isoc_ctl.transfer_buffer[i] =
773 usb_buffer_alloc(dev->udev, sb_size, GFP_KERNEL,
775 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
776 cx231xx_err("unable to allocate %i bytes for transfer"
779 in_interrupt() ? " while in int" : "");
780 cx231xx_uninit_isoc(dev);
783 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
786 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
788 usb_fill_int_urb(urb, dev->udev, pipe,
789 dev->video_mode.isoc_ctl.transfer_buffer[i],
790 sb_size, cx231xx_irq_callback, dma_q, 1);
792 urb->number_of_packets = max_packets;
793 urb->transfer_flags = URB_ISO_ASAP;
796 for (j = 0; j < max_packets; j++) {
797 urb->iso_frame_desc[j].offset = k;
798 urb->iso_frame_desc[j].length =
799 dev->video_mode.isoc_ctl.max_pkt_size;
800 k += dev->video_mode.isoc_ctl.max_pkt_size;
804 init_waitqueue_head(&dma_q->wq);
806 /* submit urbs and enables IRQ */
807 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
808 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
811 cx231xx_err("submit of urb %i failed (error=%i)\n", i,
813 cx231xx_uninit_isoc(dev);
818 cx231xx_capture_start(dev, 1, Raw_Video);
822 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
824 /*****************************************************************
825 * Device Init/UnInit functions *
826 ******************************************************************/
827 int cx231xx_dev_init(struct cx231xx *dev)
831 /* Initialize I2C bus */
833 /* External Master 1 Bus */
834 dev->i2c_bus[0].nr = 0;
835 dev->i2c_bus[0].dev = dev;
836 dev->i2c_bus[0].i2c_period = I2C_SPEED_1M; /* 1MHz */
837 dev->i2c_bus[0].i2c_nostop = 0;
838 dev->i2c_bus[0].i2c_reserve = 0;
840 /* External Master 2 Bus */
841 dev->i2c_bus[1].nr = 1;
842 dev->i2c_bus[1].dev = dev;
843 dev->i2c_bus[1].i2c_period = I2C_SPEED_1M; /* 1MHz */
844 dev->i2c_bus[1].i2c_nostop = 0;
845 dev->i2c_bus[1].i2c_reserve = 0;
847 /* Internal Master 3 Bus */
848 dev->i2c_bus[2].nr = 2;
849 dev->i2c_bus[2].dev = dev;
850 dev->i2c_bus[2].i2c_period = I2C_SPEED_400K; /* 400kHz */
851 dev->i2c_bus[2].i2c_nostop = 0;
852 dev->i2c_bus[2].i2c_reserve = 0;
854 /* register I2C buses */
855 cx231xx_i2c_register(&dev->i2c_bus[0]);
856 cx231xx_i2c_register(&dev->i2c_bus[1]);
857 cx231xx_i2c_register(&dev->i2c_bus[2]);
860 /* Note : with out calling set power mode function,
861 afe can not be set up correctly */
862 errCode = cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
865 ("%s: Failed to set Power - errCode [%d]!\n",
870 /* initialize Colibri block */
871 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
874 ("%s: cx231xx_afe init super block - errCode [%d]!\n",
878 errCode = cx231xx_afe_init_channels(dev);
881 ("%s: cx231xx_afe init channels - errCode [%d]!\n",
886 /* Set DIF in By pass mode */
887 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
890 ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
895 /* I2S block related functions */
896 errCode = cx231xx_i2s_blk_initialize(dev);
899 ("%s: cx231xx_i2s block initialize - errCode [%d]!\n",
904 /* init control pins */
905 errCode = cx231xx_init_ctrl_pin_status(dev);
907 cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
912 /* set AGC mode to Analog */
913 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
916 ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
921 /* set all alternate settings to zero initially */
922 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
923 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
924 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
925 if (dev->board.has_dvb)
926 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
928 /* set the I2C master port to 3 on channel 1 */
929 errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3);
933 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
935 void cx231xx_dev_uninit(struct cx231xx *dev)
937 /* Un Initialize I2C bus */
938 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
939 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
940 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
942 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
944 /*****************************************************************
945 * G P I O related functions *
946 ******************************************************************/
947 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 * gpio_val,
948 u8 len, u8 request, u8 direction)
951 struct VENDOR_REQUEST_IN ven_req;
954 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
959 ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */
961 ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */
964 ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */
966 ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */
969 /* set index value */
970 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
972 /* set wLength value */
973 ven_req.wLength = len;
975 /* set bData value */
978 /* set the buffer for read / write */
979 ven_req.pBuff = gpio_val;
981 /* set the direction */
983 ven_req.direction = USB_DIR_IN;
984 memset(ven_req.pBuff, 0x00, ven_req.wLength);
986 ven_req.direction = USB_DIR_OUT;
989 /* call common vendor command request */
990 status = cx231xx_send_vendor_cmd(dev, &ven_req);
993 ("UsbInterface::sendCommand, failed with status -%d\n",
999 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1001 /*****************************************************************
1002 * C O N T R O L - Register R E A D / W R I T E functions *
1003 *****************************************************************/
1004 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1006 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1011 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1015 tmp = *((u32 *) value);
1018 value[0] = (u8) tmp;
1019 value[1] = (u8) (tmp >> 8);
1020 value[2] = (u8) (tmp >> 16);
1021 value[3] = (u8) (tmp >> 24);
1024 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1029 /*****************************************************************
1030 * I 2 C Internal C O N T R O L functions *
1031 *****************************************************************/
1032 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1033 u8 saddr_len, u32 *data, u8 data_len)
1036 struct cx231xx_i2c_xfer_data req_data;
1037 u8 value[4] = { 0, 0, 0, 0 };
1041 else if (saddr_len == 0)
1044 /* prepare xfer_data struct */
1045 req_data.dev_addr = dev_addr >> 1;
1046 req_data.direction = I2C_M_RD;
1047 req_data.saddr_len = saddr_len;
1048 req_data.saddr_dat = saddr;
1049 req_data.buf_size = data_len;
1050 req_data.p_buffer = (u8 *) value;
1052 /* usb send command */
1053 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1056 /* Copy the data read back to main buffer */
1061 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1068 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1069 u8 saddr_len, u32 data, u8 data_len)
1072 u8 value[4] = { 0, 0, 0, 0 };
1073 struct cx231xx_i2c_xfer_data req_data;
1075 value[0] = (u8) data;
1076 value[1] = (u8) (data >> 8);
1077 value[2] = (u8) (data >> 16);
1078 value[3] = (u8) (data >> 24);
1082 else if (saddr_len == 0)
1085 /* prepare xfer_data struct */
1086 req_data.dev_addr = dev_addr >> 1;
1087 req_data.direction = 0;
1088 req_data.saddr_len = saddr_len;
1089 req_data.saddr_dat = saddr;
1090 req_data.buf_size = data_len;
1091 req_data.p_buffer = value;
1093 /* usb send command */
1094 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1099 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1100 u16 register_address, u8 bit_start, u8 bit_end,
1108 if (bit_start > (size - 1) || bit_end > (size - 1))
1113 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1117 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1124 mask = 1 << bit_end;
1125 for (i = bit_end; i > bit_start && i > 0; i--)
1126 mask = mask + (1 << (i - 1));
1128 value <<= bit_start;
1135 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1141 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1148 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1149 u16 saddr, u32 mask, u32 value)
1154 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1162 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1167 u32 cx231xx_set_field(u32 field_mask, u32 data)
1171 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)