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>
30 #include <media/tuner.h>
33 #include "cx231xx-reg.h"
35 /* #define ENABLE_DEBUG_ISOC_FRAMES */
37 static unsigned int core_debug;
38 module_param(core_debug, int, 0644);
39 MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
41 #define cx231xx_coredbg(fmt, arg...) do {\
43 printk(KERN_INFO "%s %s :"fmt, \
44 dev->name, __func__ , ##arg); } while (0)
46 static unsigned int reg_debug;
47 module_param(reg_debug, int, 0644);
48 MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
50 #define cx231xx_regdbg(fmt, arg...) do {\
52 printk(KERN_INFO "%s %s :"fmt, \
53 dev->name, __func__ , ##arg); } while (0)
55 static int alt = CX231XX_PINOUT;
56 module_param(alt, int, 0644);
57 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
59 #define cx231xx_isocdbg(fmt, arg...) do {\
61 printk(KERN_INFO "%s %s :"fmt, \
62 dev->name, __func__ , ##arg); } while (0)
64 /*****************************************************************
65 * Device control list functions *
66 ******************************************************************/
68 LIST_HEAD(cx231xx_devlist);
69 static DEFINE_MUTEX(cx231xx_devlist_mutex);
72 * cx231xx_realease_resources()
73 * unregisters the v4l2,i2c and usb devices
74 * called when the device gets disconected or at module unload
76 void cx231xx_remove_from_devlist(struct cx231xx *dev)
80 if (dev->udev == NULL)
83 if (atomic_read(&dev->devlist_count) > 0) {
84 mutex_lock(&cx231xx_devlist_mutex);
85 list_del(&dev->devlist);
86 atomic_dec(&dev->devlist_count);
87 mutex_unlock(&cx231xx_devlist_mutex);
91 void cx231xx_add_into_devlist(struct cx231xx *dev)
93 mutex_lock(&cx231xx_devlist_mutex);
94 list_add_tail(&dev->devlist, &cx231xx_devlist);
95 atomic_inc(&dev->devlist_count);
96 mutex_unlock(&cx231xx_devlist_mutex);
99 static LIST_HEAD(cx231xx_extension_devlist);
101 int cx231xx_register_extension(struct cx231xx_ops *ops)
103 struct cx231xx *dev = NULL;
105 mutex_lock(&cx231xx_devlist_mutex);
106 list_add_tail(&ops->next, &cx231xx_extension_devlist);
107 list_for_each_entry(dev, &cx231xx_devlist, devlist)
110 printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name);
111 mutex_unlock(&cx231xx_devlist_mutex);
114 EXPORT_SYMBOL(cx231xx_register_extension);
116 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
118 struct cx231xx *dev = NULL;
120 mutex_lock(&cx231xx_devlist_mutex);
121 list_for_each_entry(dev, &cx231xx_devlist, devlist)
125 printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name);
126 list_del(&ops->next);
127 mutex_unlock(&cx231xx_devlist_mutex);
129 EXPORT_SYMBOL(cx231xx_unregister_extension);
131 void cx231xx_init_extension(struct cx231xx *dev)
133 struct cx231xx_ops *ops = NULL;
135 mutex_lock(&cx231xx_devlist_mutex);
136 if (!list_empty(&cx231xx_extension_devlist)) {
137 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
142 mutex_unlock(&cx231xx_devlist_mutex);
145 void cx231xx_close_extension(struct cx231xx *dev)
147 struct cx231xx_ops *ops = NULL;
149 mutex_lock(&cx231xx_devlist_mutex);
150 if (!list_empty(&cx231xx_extension_devlist)) {
151 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
156 mutex_unlock(&cx231xx_devlist_mutex);
159 /****************************************************************
160 * U S B related functions *
161 *****************************************************************/
162 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
163 struct cx231xx_i2c_xfer_data *req_data)
166 struct cx231xx *dev = i2c_bus->dev;
167 struct VENDOR_REQUEST_IN ven_req;
174 /* Get the I2C period, nostop and reserve parameters */
175 _i2c_period = i2c_bus->i2c_period;
176 _i2c_nostop = i2c_bus->i2c_nostop;
177 _i2c_reserve = i2c_bus->i2c_reserve;
179 saddr_len = req_data->saddr_len;
182 if (saddr_len == 1) /* need check saddr_len == 0 */
185 dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
186 _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
190 dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
191 _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
193 /* set channel number */
194 if (req_data->direction & I2C_M_RD) {
195 /* channel number, for read,spec required channel_num +4 */
196 ven_req.bRequest = i2c_bus->nr + 4;
198 ven_req.bRequest = i2c_bus->nr; /* channel number, */
200 /* set index value */
203 ven_req.wIndex = 0; /* need check */
206 ven_req.wIndex = (req_data->saddr_dat & 0xff);
209 ven_req.wIndex = req_data->saddr_dat;
213 /* set wLength value */
214 ven_req.wLength = req_data->buf_size;
216 /* set bData value */
219 /* set the direction */
220 if (req_data->direction) {
221 ven_req.direction = USB_DIR_IN;
222 memset(req_data->p_buffer, 0x00, ven_req.wLength);
224 ven_req.direction = USB_DIR_OUT;
226 /* set the buffer for read / write */
227 ven_req.pBuff = req_data->p_buffer;
230 /* call common vendor command request */
231 status = cx231xx_send_vendor_cmd(dev, &ven_req);
234 ("UsbInterface::sendCommand, failed with status -%d\n",
240 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
243 * cx231xx_read_ctrl_reg()
244 * reads data from the usb device specifying bRequest and wValue
246 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
251 int pipe = usb_rcvctrlpipe(dev->udev, 0);
253 if (dev->state & DEV_DISCONNECTED)
256 if (len > URB_MAX_CTRL_SIZE)
261 val = ENABLE_ONE_BYTE;
264 val = ENABLE_TWE_BYTE;
267 val = ENABLE_THREE_BYTE;
270 val = ENABLE_FOUR_BYTE;
273 val = 0xFF; /* invalid option */
280 cx231xx_isocdbg("(pipe 0x%08x): "
281 "IN: %02x %02x %02x %02x %02x %02x %02x %02x ",
283 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
285 reg & 0xff, reg >> 8, len & 0xff, len >> 8);
288 mutex_lock(&dev->ctrl_urb_lock);
289 ret = usb_control_msg(dev->udev, pipe, req,
290 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
291 val, reg, dev->urb_buf, len, HZ);
293 cx231xx_isocdbg(" failed!\n");
294 mutex_unlock(&dev->ctrl_urb_lock);
299 memcpy(buf, dev->urb_buf, len);
301 mutex_unlock(&dev->ctrl_urb_lock);
306 cx231xx_isocdbg("<<<");
307 for (byte = 0; byte < len; byte++)
308 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
309 cx231xx_isocdbg("\n");
315 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
316 struct VENDOR_REQUEST_IN *ven_req)
323 if (dev->state & DEV_DISCONNECTED)
326 if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
329 if (ven_req->direction)
330 pipe = usb_rcvctrlpipe(dev->udev, 0);
332 pipe = usb_sndctrlpipe(dev->udev, 0);
337 cx231xx_isocdbg("(pipe 0x%08x): "
338 "OUT: %02x %02x %02x %04x %04x %04x >>>",
341 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
342 ven_req->bRequest, 0, ven_req->wValue,
343 ven_req->wIndex, ven_req->wLength);
345 for (byte = 0; byte < ven_req->wLength; byte++)
346 cx231xx_isocdbg(" %02x",
347 (unsigned char)ven_req->pBuff[byte]);
348 cx231xx_isocdbg("\n");
353 If the cx23102 read more than 4 bytes with i2c bus,
354 need chop to 4 byte per request
356 if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
357 (ven_req->bRequest == 0x5) ||
358 (ven_req->bRequest == 0x6))) {
360 pdata = ven_req->pBuff;
363 unsend_size = ven_req->wLength;
365 mutex_lock(&dev->ctrl_urb_lock);
366 /* the first package*/
367 ven_req->wValue = ven_req->wValue & 0xFFFB;
368 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
369 /*printk(KERN_INFO " !!!!! 0x%x 0x%x 0x%x 0x%x \n",
371 ven_req->direction | USB_TYPE_VENDOR |
372 USB_RECIP_DEVICE,ven_req->wValue,ven_req->wIndex);*/
373 ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
375 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
376 ven_req->wValue, ven_req->wIndex, pdata,
378 unsend_size = unsend_size - 4;
379 mutex_unlock(&dev->ctrl_urb_lock);
381 /* the middle package*/
382 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
383 while (unsend_size - 4 > 0) {
385 /*printk(KERN_INFO " !!!!! 0x%x 0x%x 0x%x 0x%x \n",
387 ven_req->direction | USB_TYPE_VENDOR |
389 ven_req->wValue,ven_req->wIndex);*/
390 mutex_lock(&dev->ctrl_urb_lock);
391 ret = usb_control_msg(dev->udev, pipe,
394 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
395 ven_req->wValue, ven_req->wIndex, pdata,
397 mutex_unlock(&dev->ctrl_urb_lock);
398 unsend_size = unsend_size - 4;
402 /* the last package*/
403 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
405 /*printk(KERN_INFO " !!!!! 0x%x 0x%x 0x%x 0x%x \n",
407 ven_req->direction | USB_TYPE_VENDOR |
408 USB_RECIP_DEVICE,ven_req->wValue,ven_req->wIndex);*/
409 mutex_lock(&dev->ctrl_urb_lock);
410 ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
412 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
413 ven_req->wValue, ven_req->wIndex, pdata,
415 mutex_unlock(&dev->ctrl_urb_lock);
416 /*printk(KERN_INFO " @@@@@ temp_buffer[0]=0x%x 0x%x 0x%x 0x%x
417 0x%x 0x%x\n",ven_req->pBuff[0],ven_req->pBuff[1],
418 ven_req->pBuff[2], ven_req->pBuff[3],ven_req->pBuff[4],
419 ven_req->pBuff[5]);*/
422 mutex_lock(&dev->ctrl_urb_lock);
423 ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
425 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
426 ven_req->wValue, ven_req->wIndex,
427 ven_req->pBuff, ven_req->wLength, HZ);
428 mutex_unlock(&dev->ctrl_urb_lock);
436 * cx231xx_write_ctrl_reg()
437 * sends data to the usb device, specifying bRequest
439 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
444 int pipe = usb_sndctrlpipe(dev->udev, 0);
446 if (dev->state & DEV_DISCONNECTED)
449 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
454 val = ENABLE_ONE_BYTE;
457 val = ENABLE_TWE_BYTE;
460 val = ENABLE_THREE_BYTE;
463 val = ENABLE_FOUR_BYTE;
466 val = 0xFF; /* invalid option */
475 cx231xx_isocdbg("(pipe 0x%08x): "
476 "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
478 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
479 req, 0, val, reg & 0xff,
480 reg >> 8, len & 0xff, len >> 8);
482 for (byte = 0; byte < len; byte++)
483 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
484 cx231xx_isocdbg("\n");
487 mutex_lock(&dev->ctrl_urb_lock);
488 memcpy(dev->urb_buf, buf, len);
489 ret = usb_control_msg(dev->udev, pipe, req,
490 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
491 val, reg, dev->urb_buf, len, HZ);
492 mutex_unlock(&dev->ctrl_urb_lock);
497 /****************************************************************
498 * USB Alternate Setting functions *
499 *****************************************************************/
501 int cx231xx_set_video_alternate(struct cx231xx *dev)
503 int errCode, prev_alt = dev->video_mode.alt;
504 unsigned int min_pkt_size = dev->width * 2 + 4;
505 u32 usb_interface_index = 0;
507 /* When image size is bigger than a certain value,
508 the frame size should be increased, otherwise, only
509 green screen will be received.
511 if (dev->width * 2 * dev->height > 720 * 240 * 2)
514 if (dev->width > 360) {
515 /* resolutions: 720,704,640 */
516 dev->video_mode.alt = 3;
517 } else if (dev->width > 180) {
518 /* resolutions: 360,352,320,240 */
519 dev->video_mode.alt = 2;
520 } else if (dev->width > 0) {
521 /* resolutions: 180,176,160,128,88 */
522 dev->video_mode.alt = 1;
524 /* Change to alt0 BULK to release USB bandwidth */
525 dev->video_mode.alt = 0;
528 if (dev->USE_ISO == 0)
529 dev->video_mode.alt = 0;
531 cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
533 /* Get the correct video interface Index */
534 usb_interface_index =
535 dev->current_pcb_config.hs_config_info[0].interface_info.
538 if (dev->video_mode.alt != prev_alt) {
539 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
540 min_pkt_size, dev->video_mode.alt);
542 if (dev->video_mode.alt_max_pkt_size != NULL)
543 dev->video_mode.max_pkt_size =
544 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
545 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
547 dev->video_mode.max_pkt_size);
549 usb_set_interface(dev->udev, usb_interface_index,
550 dev->video_mode.alt);
553 ("cannot change alt number to %d (error=%i)\n",
554 dev->video_mode.alt, errCode);
561 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
564 u32 usb_interface_index = 0;
565 u32 max_pkt_size = 0;
569 usb_interface_index =
570 dev->current_pcb_config.hs_config_info[0].interface_info.
572 dev->ts1_mode.alt = alt;
573 if (dev->ts1_mode.alt_max_pkt_size != NULL)
574 max_pkt_size = dev->ts1_mode.max_pkt_size =
575 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
578 usb_interface_index =
579 dev->current_pcb_config.hs_config_info[0].interface_info.
583 usb_interface_index =
584 dev->current_pcb_config.hs_config_info[0].interface_info.
587 if (dev->adev.alt_max_pkt_size != NULL)
588 max_pkt_size = dev->adev.max_pkt_size =
589 dev->adev.alt_max_pkt_size[dev->adev.alt];
592 usb_interface_index =
593 dev->current_pcb_config.hs_config_info[0].interface_info.
595 dev->video_mode.alt = alt;
596 if (dev->video_mode.alt_max_pkt_size != NULL)
597 max_pkt_size = dev->video_mode.max_pkt_size =
598 dev->video_mode.alt_max_pkt_size[dev->video_mode.
602 usb_interface_index =
603 dev->current_pcb_config.hs_config_info[0].interface_info.
605 dev->vbi_mode.alt = alt;
606 if (dev->vbi_mode.alt_max_pkt_size != NULL)
607 max_pkt_size = dev->vbi_mode.max_pkt_size =
608 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
611 usb_interface_index =
612 dev->current_pcb_config.hs_config_info[0].interface_info.
614 dev->sliced_cc_mode.alt = alt;
615 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
616 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
617 dev->sliced_cc_mode.alt_max_pkt_size[dev->
625 if (alt > 0 && max_pkt_size == 0) {
627 ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
628 usb_interface_index, alt);
629 /*To workaround error number=-71 on EP0 for videograbber,
630 need add following codes.*/
631 if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER)
635 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
636 "Interface = %d\n", alt, max_pkt_size,
637 usb_interface_index);
639 if (usb_interface_index > 0) {
640 status = usb_set_interface(dev->udev, usb_interface_index, alt);
643 ("can't change interface %d alt no. to %d (err=%i)\n",
644 usb_interface_index, alt, status);
651 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
653 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
660 /* Send GPIO reset sequences specified at board entry */
661 while (gpio->sleep >= 0) {
662 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
674 int cx231xx_demod_reset(struct cx231xx *dev)
678 u8 value[4] = { 0, 0, 0, 0 };
680 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
683 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
684 value[0], value[1], value[2], value[3]);
686 cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
689 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
690 PWR_CTL_EN, value, 4);
694 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
695 PWR_CTL_EN, value, 4);
699 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
700 PWR_CTL_EN, value, 4);
705 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
708 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
709 value[0], value[1], value[2], value[3]);
713 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
714 int is_fw_load(struct cx231xx *dev)
716 return cx231xx_check_fw(dev);
718 EXPORT_SYMBOL_GPL(is_fw_load);
720 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
724 if (dev->mode == set_mode)
727 if (set_mode == CX231XX_SUSPEND) {
728 /* Set the chip in power saving mode */
729 dev->mode = set_mode;
732 /* Resource is locked */
733 if (dev->mode != CX231XX_SUSPEND)
736 dev->mode = set_mode;
738 if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
739 /* set AGC mode to Digital */
740 switch (dev->model) {
741 case CX231XX_BOARD_CNXT_CARRAERA:
742 case CX231XX_BOARD_CNXT_RDE_250:
743 case CX231XX_BOARD_CNXT_SHELBY:
744 case CX231XX_BOARD_CNXT_RDU_250:
745 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
747 case CX231XX_BOARD_CNXT_RDE_253S:
748 case CX231XX_BOARD_CNXT_RDU_253S:
749 case CX231XX_BOARD_HAUPPAUGE_EXETER:
750 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
755 } else/* Set Analog Power mode */ {
756 /* set AGC mode to Analog */
757 switch (dev->model) {
758 case CX231XX_BOARD_CNXT_CARRAERA:
759 case CX231XX_BOARD_CNXT_RDE_250:
760 case CX231XX_BOARD_CNXT_SHELBY:
761 case CX231XX_BOARD_CNXT_RDU_250:
762 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
764 case CX231XX_BOARD_CNXT_RDE_253S:
765 case CX231XX_BOARD_CNXT_RDU_253S:
766 case CX231XX_BOARD_HAUPPAUGE_EXETER:
767 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
776 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
778 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
781 int actlen, ret = -ENOMEM;
784 buffer = kzalloc(4096, GFP_KERNEL);
785 if (buffer == NULL) {
786 cx231xx_info("out of mem\n");
789 memcpy(&buffer[0], firmware, 4096);
791 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
792 buffer, 4096, &actlen, 2000);
795 cx231xx_info("bulk message failed: %d (%d/%d)", ret,
798 errCode = actlen != size ? -1 : 0;
804 /*****************************************************************
805 * URB Streaming functions *
806 ******************************************************************/
809 * IRQ callback, called by URB callback
811 static void cx231xx_isoc_irq_callback(struct urb *urb)
813 struct cx231xx_dmaqueue *dma_q = urb->context;
814 struct cx231xx_video_mode *vmode =
815 container_of(dma_q, struct cx231xx_video_mode, vidq);
816 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
819 switch (urb->status) {
820 case 0: /* success */
821 case -ETIMEDOUT: /* NAK */
823 case -ECONNRESET: /* kill */
828 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
832 /* Copy data from URB */
833 spin_lock(&dev->video_mode.slock);
834 rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
835 spin_unlock(&dev->video_mode.slock);
837 /* Reset urb buffers */
838 for (i = 0; i < urb->number_of_packets; i++) {
839 urb->iso_frame_desc[i].status = 0;
840 urb->iso_frame_desc[i].actual_length = 0;
844 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
846 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
850 /*****************************************************************
851 * URB Streaming functions *
852 ******************************************************************/
855 * IRQ callback, called by URB callback
857 static void cx231xx_bulk_irq_callback(struct urb *urb)
859 struct cx231xx_dmaqueue *dma_q = urb->context;
860 struct cx231xx_video_mode *vmode =
861 container_of(dma_q, struct cx231xx_video_mode, vidq);
862 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
865 switch (urb->status) {
866 case 0: /* success */
867 case -ETIMEDOUT: /* NAK */
869 case -ECONNRESET: /* kill */
874 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
878 /* Copy data from URB */
879 spin_lock(&dev->video_mode.slock);
880 rc = dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
881 spin_unlock(&dev->video_mode.slock);
883 /* Reset urb buffers */
886 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
888 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
893 * Stop and Deallocate URBs
895 void cx231xx_uninit_isoc(struct cx231xx *dev)
897 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
901 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
903 dev->video_mode.isoc_ctl.nfields = -1;
904 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
905 urb = dev->video_mode.isoc_ctl.urb[i];
907 if (!irqs_disabled())
912 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
913 usb_free_coherent(dev->udev,
914 urb->transfer_buffer_length,
915 dev->video_mode.isoc_ctl.
920 dev->video_mode.isoc_ctl.urb[i] = NULL;
922 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
925 kfree(dev->video_mode.isoc_ctl.urb);
926 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
927 kfree(dma_q->p_left_data);
929 dev->video_mode.isoc_ctl.urb = NULL;
930 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
931 dev->video_mode.isoc_ctl.num_bufs = 0;
932 dma_q->p_left_data = NULL;
934 if (dev->mode_tv == 0)
935 cx231xx_capture_start(dev, 0, Raw_Video);
937 cx231xx_capture_start(dev, 0, TS1_serial_mode);
941 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
944 * Stop and Deallocate URBs
946 void cx231xx_uninit_bulk(struct cx231xx *dev)
951 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
953 dev->video_mode.bulk_ctl.nfields = -1;
954 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
955 urb = dev->video_mode.bulk_ctl.urb[i];
957 if (!irqs_disabled())
962 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
963 usb_free_coherent(dev->udev,
964 urb->transfer_buffer_length,
965 dev->video_mode.isoc_ctl.
970 dev->video_mode.bulk_ctl.urb[i] = NULL;
972 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
975 kfree(dev->video_mode.bulk_ctl.urb);
976 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
978 dev->video_mode.bulk_ctl.urb = NULL;
979 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
980 dev->video_mode.bulk_ctl.num_bufs = 0;
982 if (dev->mode_tv == 0)
983 cx231xx_capture_start(dev, 0, Raw_Video);
985 cx231xx_capture_start(dev, 0, TS1_serial_mode);
989 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
992 * Allocate URBs and start IRQ
994 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
995 int num_bufs, int max_pkt_size,
996 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
998 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1005 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1007 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1009 video_mux(dev, dev->video_input);
1011 /* De-allocates all pending stuff */
1012 cx231xx_uninit_isoc(dev);
1014 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1015 if (dma_q->p_left_data == NULL) {
1016 cx231xx_info("out of mem\n");
1022 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1023 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1025 dma_q->is_partial_line = 0;
1026 dma_q->last_sav = 0;
1027 dma_q->current_field = -1;
1028 dma_q->field1_done = 0;
1029 dma_q->lines_per_field = dev->height / 2;
1030 dma_q->bytes_left_in_line = dev->width << 1;
1031 dma_q->lines_completed = 0;
1032 dma_q->mpeg_buffer_done = 0;
1033 dma_q->left_data_count = 0;
1034 dma_q->mpeg_buffer_completed = 0;
1035 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1036 dma_q->ps_head[0] = 0x00;
1037 dma_q->ps_head[1] = 0x00;
1038 dma_q->ps_head[2] = 0x01;
1039 dma_q->ps_head[3] = 0xBA;
1040 for (i = 0; i < 8; i++)
1041 dma_q->partial_buf[i] = 0;
1043 dev->video_mode.isoc_ctl.urb =
1044 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1045 if (!dev->video_mode.isoc_ctl.urb) {
1046 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1050 dev->video_mode.isoc_ctl.transfer_buffer =
1051 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1052 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1053 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1054 kfree(dev->video_mode.isoc_ctl.urb);
1058 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1059 dev->video_mode.isoc_ctl.buf = NULL;
1061 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1063 if (dev->mode_tv == 1)
1064 dev->video_mode.end_point_addr = 0x81;
1066 dev->video_mode.end_point_addr = 0x84;
1069 /* allocate urbs and transfer buffers */
1070 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1071 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1073 cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i);
1074 cx231xx_uninit_isoc(dev);
1077 dev->video_mode.isoc_ctl.urb[i] = urb;
1079 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1080 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1081 &urb->transfer_dma);
1082 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1083 cx231xx_err("unable to allocate %i bytes for transfer"
1086 in_interrupt() ? " while in int" : "");
1087 cx231xx_uninit_isoc(dev);
1090 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1093 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1095 usb_fill_int_urb(urb, dev->udev, pipe,
1096 dev->video_mode.isoc_ctl.transfer_buffer[i],
1097 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1099 urb->number_of_packets = max_packets;
1100 urb->transfer_flags = URB_ISO_ASAP;
1103 for (j = 0; j < max_packets; j++) {
1104 urb->iso_frame_desc[j].offset = k;
1105 urb->iso_frame_desc[j].length =
1106 dev->video_mode.isoc_ctl.max_pkt_size;
1107 k += dev->video_mode.isoc_ctl.max_pkt_size;
1111 init_waitqueue_head(&dma_q->wq);
1113 /* submit urbs and enables IRQ */
1114 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1115 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1118 cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1120 cx231xx_uninit_isoc(dev);
1125 if (dev->mode_tv == 0)
1126 cx231xx_capture_start(dev, 1, Raw_Video);
1128 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1132 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1135 * Allocate URBs and start IRQ
1137 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1138 int num_bufs, int max_pkt_size,
1139 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1141 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1147 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1149 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1151 video_mux(dev, dev->video_input);
1153 /* De-allocates all pending stuff */
1154 cx231xx_uninit_bulk(dev);
1156 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1157 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1159 dma_q->is_partial_line = 0;
1160 dma_q->last_sav = 0;
1161 dma_q->current_field = -1;
1162 dma_q->field1_done = 0;
1163 dma_q->lines_per_field = dev->height / 2;
1164 dma_q->bytes_left_in_line = dev->width << 1;
1165 dma_q->lines_completed = 0;
1166 dma_q->mpeg_buffer_done = 0;
1167 dma_q->left_data_count = 0;
1168 dma_q->mpeg_buffer_completed = 0;
1169 dma_q->ps_head[0] = 0x00;
1170 dma_q->ps_head[1] = 0x00;
1171 dma_q->ps_head[2] = 0x01;
1172 dma_q->ps_head[3] = 0xBA;
1173 for (i = 0; i < 8; i++)
1174 dma_q->partial_buf[i] = 0;
1176 dev->video_mode.bulk_ctl.urb =
1177 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1178 if (!dev->video_mode.bulk_ctl.urb) {
1179 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1183 dev->video_mode.bulk_ctl.transfer_buffer =
1184 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1185 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1186 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1187 kfree(dev->video_mode.bulk_ctl.urb);
1191 dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1192 dev->video_mode.bulk_ctl.buf = NULL;
1194 sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1196 if (dev->mode_tv == 1)
1197 dev->video_mode.end_point_addr = 0x81;
1199 dev->video_mode.end_point_addr = 0x84;
1202 /* allocate urbs and transfer buffers */
1203 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1204 urb = usb_alloc_urb(0, GFP_KERNEL);
1206 cx231xx_err("cannot alloc bulk_ctl.urb %i\n", i);
1207 cx231xx_uninit_bulk(dev);
1210 dev->video_mode.bulk_ctl.urb[i] = urb;
1211 urb->transfer_flags = 0;
1213 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1214 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1215 &urb->transfer_dma);
1216 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1217 cx231xx_err("unable to allocate %i bytes for transfer"
1220 in_interrupt() ? " while in int" : "");
1221 cx231xx_uninit_bulk(dev);
1224 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1226 pipe = usb_rcvbulkpipe(dev->udev,
1227 dev->video_mode.end_point_addr);
1228 usb_fill_bulk_urb(urb, dev->udev, pipe,
1229 dev->video_mode.bulk_ctl.transfer_buffer[i],
1230 sb_size, cx231xx_bulk_irq_callback, dma_q);
1233 init_waitqueue_head(&dma_q->wq);
1235 /* submit urbs and enables IRQ */
1236 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1237 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1240 cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1242 cx231xx_uninit_bulk(dev);
1247 if (dev->mode_tv == 0)
1248 cx231xx_capture_start(dev, 1, Raw_Video);
1250 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1254 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1255 void cx231xx_stop_TS1(struct cx231xx *dev)
1258 u8 val[4] = { 0, 0, 0, 0 };
1264 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1265 TS_MODE_REG, val, 4);
1271 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1272 TS1_CFG_REG, val, 4);
1274 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1275 void cx231xx_start_TS1(struct cx231xx *dev)
1278 u8 val[4] = { 0, 0, 0, 0 };
1284 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1285 TS_MODE_REG, val, 4);
1291 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1292 TS1_CFG_REG, val, 4);
1294 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1295 /*****************************************************************
1296 * Device Init/UnInit functions *
1297 ******************************************************************/
1298 int cx231xx_dev_init(struct cx231xx *dev)
1302 /* Initialize I2C bus */
1304 /* External Master 1 Bus */
1305 dev->i2c_bus[0].nr = 0;
1306 dev->i2c_bus[0].dev = dev;
1307 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1308 dev->i2c_bus[0].i2c_nostop = 0;
1309 dev->i2c_bus[0].i2c_reserve = 0;
1311 /* External Master 2 Bus */
1312 dev->i2c_bus[1].nr = 1;
1313 dev->i2c_bus[1].dev = dev;
1314 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1315 dev->i2c_bus[1].i2c_nostop = 0;
1316 dev->i2c_bus[1].i2c_reserve = 0;
1318 /* Internal Master 3 Bus */
1319 dev->i2c_bus[2].nr = 2;
1320 dev->i2c_bus[2].dev = dev;
1321 dev->i2c_bus[2].i2c_period = I2C_SPEED_400K; /* 400kHz */
1322 dev->i2c_bus[2].i2c_nostop = 0;
1323 dev->i2c_bus[2].i2c_reserve = 0;
1325 /* register I2C buses */
1326 cx231xx_i2c_register(&dev->i2c_bus[0]);
1327 cx231xx_i2c_register(&dev->i2c_bus[1]);
1328 cx231xx_i2c_register(&dev->i2c_bus[2]);
1331 /* Note : with out calling set power mode function,
1332 afe can not be set up correctly */
1333 if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
1334 errCode = cx231xx_set_power_mode(dev,
1335 POLARIS_AVMODE_ENXTERNAL_AV);
1338 ("%s: Failed to set Power - errCode [%d]!\n",
1343 errCode = cx231xx_set_power_mode(dev,
1344 POLARIS_AVMODE_ANALOGT_TV);
1347 ("%s: Failed to set Power - errCode [%d]!\n",
1353 /* reset the Tuner */
1354 if ((dev->model == CX231XX_BOARD_CNXT_CARRAERA) ||
1355 (dev->model == CX231XX_BOARD_CNXT_RDE_250) ||
1356 (dev->model == CX231XX_BOARD_CNXT_SHELBY) ||
1357 (dev->model == CX231XX_BOARD_CNXT_RDU_250))
1358 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1360 /* initialize Colibri block */
1361 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1364 ("%s: cx231xx_afe init super block - errCode [%d]!\n",
1368 errCode = cx231xx_afe_init_channels(dev);
1371 ("%s: cx231xx_afe init channels - errCode [%d]!\n",
1376 /* Set DIF in By pass mode */
1377 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1380 ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1385 /* I2S block related functions */
1386 errCode = cx231xx_i2s_blk_initialize(dev);
1389 ("%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1394 /* init control pins */
1395 errCode = cx231xx_init_ctrl_pin_status(dev);
1397 cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1402 /* set AGC mode to Analog */
1403 switch (dev->model) {
1404 case CX231XX_BOARD_CNXT_CARRAERA:
1405 case CX231XX_BOARD_CNXT_RDE_250:
1406 case CX231XX_BOARD_CNXT_SHELBY:
1407 case CX231XX_BOARD_CNXT_RDU_250:
1408 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1410 case CX231XX_BOARD_CNXT_RDE_253S:
1411 case CX231XX_BOARD_CNXT_RDU_253S:
1412 case CX231XX_BOARD_HAUPPAUGE_EXETER:
1413 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1420 ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1425 /* set all alternate settings to zero initially */
1426 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1427 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1428 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1429 if (dev->board.has_dvb)
1430 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1432 /* set the I2C master port to 3 on channel 1 */
1433 if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER)
1434 errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3);
1438 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1440 void cx231xx_dev_uninit(struct cx231xx *dev)
1442 /* Un Initialize I2C bus */
1443 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1444 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1445 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1447 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1449 /*****************************************************************
1450 * G P I O related functions *
1451 ******************************************************************/
1452 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1453 u8 len, u8 request, u8 direction)
1456 struct VENDOR_REQUEST_IN ven_req;
1459 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1464 ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */
1466 ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */
1469 ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */
1471 ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */
1474 /* set index value */
1475 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1477 /* set wLength value */
1478 ven_req.wLength = len;
1480 /* set bData value */
1483 /* set the buffer for read / write */
1484 ven_req.pBuff = gpio_val;
1486 /* set the direction */
1488 ven_req.direction = USB_DIR_IN;
1489 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1491 ven_req.direction = USB_DIR_OUT;
1494 /* call common vendor command request */
1495 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1498 ("UsbInterface::sendCommand, failed with status -%d\n",
1504 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1506 /*****************************************************************
1507 * C O N T R O L - Register R E A D / W R I T E functions *
1508 *****************************************************************/
1509 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1511 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1516 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1520 tmp = *((u32 *) value);
1523 value[0] = (u8) tmp;
1524 value[1] = (u8) (tmp >> 8);
1525 value[2] = (u8) (tmp >> 16);
1526 value[3] = (u8) (tmp >> 24);
1529 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1534 /*****************************************************************
1535 * I 2 C Internal C O N T R O L functions *
1536 *****************************************************************/
1537 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1538 u8 saddr_len, u32 *data, u8 data_len, int master)
1541 struct cx231xx_i2c_xfer_data req_data;
1546 else if (saddr_len == 0)
1549 /* prepare xfer_data struct */
1550 req_data.dev_addr = dev_addr >> 1;
1551 req_data.direction = I2C_M_RD;
1552 req_data.saddr_len = saddr_len;
1553 req_data.saddr_dat = saddr;
1554 req_data.buf_size = data_len;
1555 req_data.p_buffer = (u8 *) value;
1557 /* usb send command */
1559 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1561 else if (master == 1)
1562 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1564 else if (master == 2)
1565 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1569 /* Copy the data read back to main buffer */
1572 else if (data_len == 4)
1574 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1576 else if (data_len > 4)
1577 *data = value[saddr];
1583 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1584 u8 saddr_len, u32 data, u8 data_len, int master)
1587 u8 value[4] = { 0, 0, 0, 0 };
1588 struct cx231xx_i2c_xfer_data req_data;
1590 value[0] = (u8) data;
1591 value[1] = (u8) (data >> 8);
1592 value[2] = (u8) (data >> 16);
1593 value[3] = (u8) (data >> 24);
1597 else if (saddr_len == 0)
1600 /* prepare xfer_data struct */
1601 req_data.dev_addr = dev_addr >> 1;
1602 req_data.direction = 0;
1603 req_data.saddr_len = saddr_len;
1604 req_data.saddr_dat = saddr;
1605 req_data.buf_size = data_len;
1606 req_data.p_buffer = value;
1608 /* usb send command */
1610 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1612 else if (master == 1)
1613 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1615 else if (master == 2)
1616 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1622 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1623 u8 saddr_len, u32 *data, u8 data_len)
1626 struct cx231xx_i2c_xfer_data req_data;
1627 u8 value[4] = { 0, 0, 0, 0 };
1631 else if (saddr_len == 0)
1634 /* prepare xfer_data struct */
1635 req_data.dev_addr = dev_addr >> 1;
1636 req_data.direction = I2C_M_RD;
1637 req_data.saddr_len = saddr_len;
1638 req_data.saddr_dat = saddr;
1639 req_data.buf_size = data_len;
1640 req_data.p_buffer = (u8 *) value;
1642 /* usb send command */
1643 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1646 /* Copy the data read back to main buffer */
1651 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1658 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1659 u8 saddr_len, u32 data, u8 data_len)
1662 u8 value[4] = { 0, 0, 0, 0 };
1663 struct cx231xx_i2c_xfer_data req_data;
1665 value[0] = (u8) data;
1666 value[1] = (u8) (data >> 8);
1667 value[2] = (u8) (data >> 16);
1668 value[3] = (u8) (data >> 24);
1672 else if (saddr_len == 0)
1675 /* prepare xfer_data struct */
1676 req_data.dev_addr = dev_addr >> 1;
1677 req_data.direction = 0;
1678 req_data.saddr_len = saddr_len;
1679 req_data.saddr_dat = saddr;
1680 req_data.buf_size = data_len;
1681 req_data.p_buffer = value;
1683 /* usb send command */
1684 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1689 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1690 u16 register_address, u8 bit_start, u8 bit_end,
1698 if (bit_start > (size - 1) || bit_end > (size - 1))
1703 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1707 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1714 mask = 1 << bit_end;
1715 for (i = bit_end; i > bit_start && i > 0; i--)
1716 mask = mask + (1 << (i - 1));
1718 value <<= bit_start;
1725 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1731 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1738 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1739 u16 saddr, u32 mask, u32 value)
1744 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1752 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1757 u32 cx231xx_set_field(u32 field_mask, u32 data)
1761 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)