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 static int alt = CX231XX_PINOUT;
51 module_param(alt, int, 0644);
52 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
54 #define cx231xx_isocdbg(fmt, arg...) do {\
56 printk(KERN_INFO "%s %s :"fmt, \
57 dev->name, __func__ , ##arg); } while (0)
59 /*****************************************************************
60 * Device control list functions *
61 ******************************************************************/
63 LIST_HEAD(cx231xx_devlist);
64 static DEFINE_MUTEX(cx231xx_devlist_mutex);
67 * cx231xx_realease_resources()
68 * unregisters the v4l2,i2c and usb devices
69 * called when the device gets disconected or at module unload
71 void cx231xx_remove_from_devlist(struct cx231xx *dev)
75 if (dev->udev == NULL)
78 if (atomic_read(&dev->devlist_count) > 0) {
79 mutex_lock(&cx231xx_devlist_mutex);
80 list_del(&dev->devlist);
81 atomic_dec(&dev->devlist_count);
82 mutex_unlock(&cx231xx_devlist_mutex);
86 void cx231xx_add_into_devlist(struct cx231xx *dev)
88 mutex_lock(&cx231xx_devlist_mutex);
89 list_add_tail(&dev->devlist, &cx231xx_devlist);
90 atomic_inc(&dev->devlist_count);
91 mutex_unlock(&cx231xx_devlist_mutex);
94 static LIST_HEAD(cx231xx_extension_devlist);
96 int cx231xx_register_extension(struct cx231xx_ops *ops)
98 struct cx231xx *dev = NULL;
100 mutex_lock(&cx231xx_devlist_mutex);
101 list_add_tail(&ops->next, &cx231xx_extension_devlist);
102 list_for_each_entry(dev, &cx231xx_devlist, devlist)
105 printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name);
106 mutex_unlock(&cx231xx_devlist_mutex);
109 EXPORT_SYMBOL(cx231xx_register_extension);
111 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
113 struct cx231xx *dev = NULL;
115 mutex_lock(&cx231xx_devlist_mutex);
116 list_for_each_entry(dev, &cx231xx_devlist, devlist)
120 printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name);
121 list_del(&ops->next);
122 mutex_unlock(&cx231xx_devlist_mutex);
124 EXPORT_SYMBOL(cx231xx_unregister_extension);
126 void cx231xx_init_extension(struct cx231xx *dev)
128 struct cx231xx_ops *ops = NULL;
130 mutex_lock(&cx231xx_devlist_mutex);
131 if (!list_empty(&cx231xx_extension_devlist)) {
132 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
137 mutex_unlock(&cx231xx_devlist_mutex);
140 void cx231xx_close_extension(struct cx231xx *dev)
142 struct cx231xx_ops *ops = NULL;
144 mutex_lock(&cx231xx_devlist_mutex);
145 if (!list_empty(&cx231xx_extension_devlist)) {
146 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
151 mutex_unlock(&cx231xx_devlist_mutex);
154 /****************************************************************
155 * U S B related functions *
156 *****************************************************************/
157 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
158 struct cx231xx_i2c_xfer_data *req_data)
161 struct cx231xx *dev = i2c_bus->dev;
162 struct VENDOR_REQUEST_IN ven_req;
169 /* Get the I2C period, nostop and reserve parameters */
170 _i2c_period = i2c_bus->i2c_period;
171 _i2c_nostop = i2c_bus->i2c_nostop;
172 _i2c_reserve = i2c_bus->i2c_reserve;
174 saddr_len = req_data->saddr_len;
177 if (saddr_len == 1) /* need check saddr_len == 0 */
180 dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
181 _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
185 dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
186 _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
188 /* set channel number */
189 if (req_data->direction & I2C_M_RD) {
190 /* channel number, for read,spec required channel_num +4 */
191 ven_req.bRequest = i2c_bus->nr + 4;
193 ven_req.bRequest = i2c_bus->nr; /* channel number, */
195 /* set index value */
198 ven_req.wIndex = 0; /* need check */
201 ven_req.wIndex = (req_data->saddr_dat & 0xff);
204 ven_req.wIndex = req_data->saddr_dat;
208 /* set wLength value */
209 ven_req.wLength = req_data->buf_size;
211 /* set bData value */
214 /* set the direction */
215 if (req_data->direction) {
216 ven_req.direction = USB_DIR_IN;
217 memset(req_data->p_buffer, 0x00, ven_req.wLength);
219 ven_req.direction = USB_DIR_OUT;
221 /* set the buffer for read / write */
222 ven_req.pBuff = req_data->p_buffer;
225 /* call common vendor command request */
226 status = cx231xx_send_vendor_cmd(dev, &ven_req);
229 ("UsbInterface::sendCommand, failed with status -%d\n",
235 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
238 * Sends/Receives URB control messages, assuring to use a kalloced buffer
239 * for all operations (dev->urb_buf), to avoid using stacked buffers, as
240 * they aren't safe for usage with USB, due to DMA restrictions.
241 * Also implements the debug code for control URB's.
243 static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
244 __u8 request, __u8 requesttype, __u16 value, __u16 index,
245 void *data, __u16 size, int timeout)
250 printk(KERN_DEBUG "%s: (pipe 0x%08x): "
251 "%s: %02x %02x %02x %02x %02x %02x %02x %02x ",
254 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
257 value & 0xff, value >> 8,
258 index & 0xff, index >> 8,
259 size & 0xff, size >> 8);
260 if (!(requesttype & USB_DIR_IN)) {
261 printk(KERN_CONT ">>>");
262 for (i = 0; i < size; i++)
263 printk(KERN_CONT " %02x",
264 ((unsigned char *)data)[i]);
268 /* Do the real call to usb_control_msg */
269 mutex_lock(&dev->ctrl_urb_lock);
270 if (!(requesttype & USB_DIR_IN) && size)
271 memcpy(dev->urb_buf, data, size);
272 rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
273 index, dev->urb_buf, size, timeout);
274 if ((requesttype & USB_DIR_IN) && size)
275 memcpy(data, dev->urb_buf, size);
276 mutex_unlock(&dev->ctrl_urb_lock);
279 if (unlikely(rc < 0)) {
280 printk(KERN_CONT "FAILED!\n");
284 if ((requesttype & USB_DIR_IN)) {
285 printk(KERN_CONT "<<<");
286 for (i = 0; i < size; i++)
287 printk(KERN_CONT " %02x",
288 ((unsigned char *)data)[i]);
290 printk(KERN_CONT "\n");
298 * cx231xx_read_ctrl_reg()
299 * reads data from the usb device specifying bRequest and wValue
301 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
306 int pipe = usb_rcvctrlpipe(dev->udev, 0);
308 if (dev->state & DEV_DISCONNECTED)
311 if (len > URB_MAX_CTRL_SIZE)
316 val = ENABLE_ONE_BYTE;
319 val = ENABLE_TWE_BYTE;
322 val = ENABLE_THREE_BYTE;
325 val = ENABLE_FOUR_BYTE;
328 val = 0xFF; /* invalid option */
334 ret = __usb_control_msg(dev, pipe, req,
335 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
336 val, reg, buf, len, HZ);
340 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
341 struct VENDOR_REQUEST_IN *ven_req)
348 if (dev->state & DEV_DISCONNECTED)
351 if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
354 if (ven_req->direction)
355 pipe = usb_rcvctrlpipe(dev->udev, 0);
357 pipe = usb_sndctrlpipe(dev->udev, 0);
360 * If the cx23102 read more than 4 bytes with i2c bus,
361 * need chop to 4 byte per request
363 if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
364 (ven_req->bRequest == 0x5) ||
365 (ven_req->bRequest == 0x6))) {
367 pdata = ven_req->pBuff;
370 unsend_size = ven_req->wLength;
372 /* the first package */
373 ven_req->wValue = ven_req->wValue & 0xFFFB;
374 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
375 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
376 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
377 ven_req->wValue, ven_req->wIndex, pdata,
379 unsend_size = unsend_size - 4;
381 /* the middle package */
382 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
383 while (unsend_size - 4 > 0) {
385 ret = __usb_control_msg(dev, pipe,
387 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
388 ven_req->wValue, ven_req->wIndex, pdata,
390 unsend_size = unsend_size - 4;
393 /* the last package */
394 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
396 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
397 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
398 ven_req->wValue, ven_req->wIndex, pdata,
401 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
402 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
403 ven_req->wValue, ven_req->wIndex,
404 ven_req->pBuff, ven_req->wLength, HZ);
411 * cx231xx_write_ctrl_reg()
412 * sends data to the usb device, specifying bRequest
414 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
419 int pipe = usb_sndctrlpipe(dev->udev, 0);
421 if (dev->state & DEV_DISCONNECTED)
424 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
429 val = ENABLE_ONE_BYTE;
432 val = ENABLE_TWE_BYTE;
435 val = ENABLE_THREE_BYTE;
438 val = ENABLE_FOUR_BYTE;
441 val = 0xFF; /* invalid option */
450 cx231xx_isocdbg("(pipe 0x%08x): "
451 "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
453 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
454 req, 0, val, reg & 0xff,
455 reg >> 8, len & 0xff, len >> 8);
457 for (byte = 0; byte < len; byte++)
458 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
459 cx231xx_isocdbg("\n");
462 ret = __usb_control_msg(dev, pipe, req,
463 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
464 val, reg, buf, len, HZ);
469 /****************************************************************
470 * USB Alternate Setting functions *
471 *****************************************************************/
473 int cx231xx_set_video_alternate(struct cx231xx *dev)
475 int errCode, prev_alt = dev->video_mode.alt;
476 unsigned int min_pkt_size = dev->width * 2 + 4;
477 u32 usb_interface_index = 0;
479 /* When image size is bigger than a certain value,
480 the frame size should be increased, otherwise, only
481 green screen will be received.
483 if (dev->width * 2 * dev->height > 720 * 240 * 2)
486 if (dev->width > 360) {
487 /* resolutions: 720,704,640 */
488 dev->video_mode.alt = 3;
489 } else if (dev->width > 180) {
490 /* resolutions: 360,352,320,240 */
491 dev->video_mode.alt = 2;
492 } else if (dev->width > 0) {
493 /* resolutions: 180,176,160,128,88 */
494 dev->video_mode.alt = 1;
496 /* Change to alt0 BULK to release USB bandwidth */
497 dev->video_mode.alt = 0;
500 if (dev->USE_ISO == 0)
501 dev->video_mode.alt = 0;
503 cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
505 /* Get the correct video interface Index */
506 usb_interface_index =
507 dev->current_pcb_config.hs_config_info[0].interface_info.
510 if (dev->video_mode.alt != prev_alt) {
511 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
512 min_pkt_size, dev->video_mode.alt);
514 if (dev->video_mode.alt_max_pkt_size != NULL)
515 dev->video_mode.max_pkt_size =
516 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
517 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
519 dev->video_mode.max_pkt_size);
521 usb_set_interface(dev->udev, usb_interface_index,
522 dev->video_mode.alt);
525 ("cannot change alt number to %d (error=%i)\n",
526 dev->video_mode.alt, errCode);
533 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
536 u32 usb_interface_index = 0;
537 u32 max_pkt_size = 0;
541 usb_interface_index =
542 dev->current_pcb_config.hs_config_info[0].interface_info.
544 dev->ts1_mode.alt = alt;
545 if (dev->ts1_mode.alt_max_pkt_size != NULL)
546 max_pkt_size = dev->ts1_mode.max_pkt_size =
547 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
550 usb_interface_index =
551 dev->current_pcb_config.hs_config_info[0].interface_info.
555 usb_interface_index =
556 dev->current_pcb_config.hs_config_info[0].interface_info.
559 if (dev->adev.alt_max_pkt_size != NULL)
560 max_pkt_size = dev->adev.max_pkt_size =
561 dev->adev.alt_max_pkt_size[dev->adev.alt];
564 usb_interface_index =
565 dev->current_pcb_config.hs_config_info[0].interface_info.
567 dev->video_mode.alt = alt;
568 if (dev->video_mode.alt_max_pkt_size != NULL)
569 max_pkt_size = dev->video_mode.max_pkt_size =
570 dev->video_mode.alt_max_pkt_size[dev->video_mode.
574 usb_interface_index =
575 dev->current_pcb_config.hs_config_info[0].interface_info.
577 dev->vbi_mode.alt = alt;
578 if (dev->vbi_mode.alt_max_pkt_size != NULL)
579 max_pkt_size = dev->vbi_mode.max_pkt_size =
580 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
583 usb_interface_index =
584 dev->current_pcb_config.hs_config_info[0].interface_info.
586 dev->sliced_cc_mode.alt = alt;
587 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
588 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
589 dev->sliced_cc_mode.alt_max_pkt_size[dev->
597 if (alt > 0 && max_pkt_size == 0) {
599 ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
600 usb_interface_index, alt);
601 /*To workaround error number=-71 on EP0 for videograbber,
602 need add following codes.*/
603 if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER &&
604 dev->model != CX231XX_BOARD_HAUPPAUGE_USBLIVE2)
608 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
609 "Interface = %d\n", alt, max_pkt_size,
610 usb_interface_index);
612 if (usb_interface_index > 0) {
613 status = usb_set_interface(dev->udev, usb_interface_index, alt);
616 ("can't change interface %d alt no. to %d (err=%i)\n",
617 usb_interface_index, alt, status);
624 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
626 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
633 /* Send GPIO reset sequences specified at board entry */
634 while (gpio->sleep >= 0) {
635 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
647 int cx231xx_demod_reset(struct cx231xx *dev)
651 u8 value[4] = { 0, 0, 0, 0 };
653 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
656 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
657 value[0], value[1], value[2], value[3]);
659 cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
662 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
663 PWR_CTL_EN, value, 4);
667 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
668 PWR_CTL_EN, value, 4);
672 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
673 PWR_CTL_EN, value, 4);
678 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
681 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
682 value[0], value[1], value[2], value[3]);
686 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
687 int is_fw_load(struct cx231xx *dev)
689 return cx231xx_check_fw(dev);
691 EXPORT_SYMBOL_GPL(is_fw_load);
693 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
697 if (dev->mode == set_mode)
700 if (set_mode == CX231XX_SUSPEND) {
701 /* Set the chip in power saving mode */
702 dev->mode = set_mode;
705 /* Resource is locked */
706 if (dev->mode != CX231XX_SUSPEND)
709 dev->mode = set_mode;
711 if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
712 /* set AGC mode to Digital */
713 switch (dev->model) {
714 case CX231XX_BOARD_CNXT_CARRAERA:
715 case CX231XX_BOARD_CNXT_RDE_250:
716 case CX231XX_BOARD_CNXT_SHELBY:
717 case CX231XX_BOARD_CNXT_RDU_250:
718 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
720 case CX231XX_BOARD_CNXT_RDE_253S:
721 case CX231XX_BOARD_CNXT_RDU_253S:
722 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
724 case CX231XX_BOARD_HAUPPAUGE_EXETER:
725 errCode = cx231xx_set_power_mode(dev,
726 POLARIS_AVMODE_DIGITAL);
731 } else/* Set Analog Power mode */ {
732 /* set AGC mode to Analog */
733 switch (dev->model) {
734 case CX231XX_BOARD_CNXT_CARRAERA:
735 case CX231XX_BOARD_CNXT_RDE_250:
736 case CX231XX_BOARD_CNXT_SHELBY:
737 case CX231XX_BOARD_CNXT_RDU_250:
738 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
740 case CX231XX_BOARD_CNXT_RDE_253S:
741 case CX231XX_BOARD_CNXT_RDU_253S:
742 case CX231XX_BOARD_HAUPPAUGE_EXETER:
743 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
744 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
753 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
755 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
758 int actlen, ret = -ENOMEM;
761 buffer = kzalloc(4096, GFP_KERNEL);
762 if (buffer == NULL) {
763 cx231xx_info("out of mem\n");
766 memcpy(&buffer[0], firmware, 4096);
768 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
769 buffer, 4096, &actlen, 2000);
772 cx231xx_info("bulk message failed: %d (%d/%d)", ret,
775 errCode = actlen != size ? -1 : 0;
781 /*****************************************************************
782 * URB Streaming functions *
783 ******************************************************************/
786 * IRQ callback, called by URB callback
788 static void cx231xx_isoc_irq_callback(struct urb *urb)
790 struct cx231xx_dmaqueue *dma_q = urb->context;
791 struct cx231xx_video_mode *vmode =
792 container_of(dma_q, struct cx231xx_video_mode, vidq);
793 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
796 switch (urb->status) {
797 case 0: /* success */
798 case -ETIMEDOUT: /* NAK */
800 case -ECONNRESET: /* kill */
805 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
809 /* Copy data from URB */
810 spin_lock(&dev->video_mode.slock);
811 rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
812 spin_unlock(&dev->video_mode.slock);
814 /* Reset urb buffers */
815 for (i = 0; i < urb->number_of_packets; i++) {
816 urb->iso_frame_desc[i].status = 0;
817 urb->iso_frame_desc[i].actual_length = 0;
821 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
823 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
827 /*****************************************************************
828 * URB Streaming functions *
829 ******************************************************************/
832 * IRQ callback, called by URB callback
834 static void cx231xx_bulk_irq_callback(struct urb *urb)
836 struct cx231xx_dmaqueue *dma_q = urb->context;
837 struct cx231xx_video_mode *vmode =
838 container_of(dma_q, struct cx231xx_video_mode, vidq);
839 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
842 switch (urb->status) {
843 case 0: /* success */
844 case -ETIMEDOUT: /* NAK */
846 case -ECONNRESET: /* kill */
851 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
855 /* Copy data from URB */
856 spin_lock(&dev->video_mode.slock);
857 rc = dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
858 spin_unlock(&dev->video_mode.slock);
860 /* Reset urb buffers */
863 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
865 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
870 * Stop and Deallocate URBs
872 void cx231xx_uninit_isoc(struct cx231xx *dev)
874 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
878 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
880 dev->video_mode.isoc_ctl.nfields = -1;
881 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
882 urb = dev->video_mode.isoc_ctl.urb[i];
884 if (!irqs_disabled())
889 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
890 usb_free_coherent(dev->udev,
891 urb->transfer_buffer_length,
892 dev->video_mode.isoc_ctl.
897 dev->video_mode.isoc_ctl.urb[i] = NULL;
899 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
902 kfree(dev->video_mode.isoc_ctl.urb);
903 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
904 kfree(dma_q->p_left_data);
906 dev->video_mode.isoc_ctl.urb = NULL;
907 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
908 dev->video_mode.isoc_ctl.num_bufs = 0;
909 dma_q->p_left_data = NULL;
911 if (dev->mode_tv == 0)
912 cx231xx_capture_start(dev, 0, Raw_Video);
914 cx231xx_capture_start(dev, 0, TS1_serial_mode);
918 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
921 * Stop and Deallocate URBs
923 void cx231xx_uninit_bulk(struct cx231xx *dev)
928 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
930 dev->video_mode.bulk_ctl.nfields = -1;
931 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
932 urb = dev->video_mode.bulk_ctl.urb[i];
934 if (!irqs_disabled())
939 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
940 usb_free_coherent(dev->udev,
941 urb->transfer_buffer_length,
942 dev->video_mode.isoc_ctl.
947 dev->video_mode.bulk_ctl.urb[i] = NULL;
949 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
952 kfree(dev->video_mode.bulk_ctl.urb);
953 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
955 dev->video_mode.bulk_ctl.urb = NULL;
956 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
957 dev->video_mode.bulk_ctl.num_bufs = 0;
959 if (dev->mode_tv == 0)
960 cx231xx_capture_start(dev, 0, Raw_Video);
962 cx231xx_capture_start(dev, 0, TS1_serial_mode);
966 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
969 * Allocate URBs and start IRQ
971 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
972 int num_bufs, int max_pkt_size,
973 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
975 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
982 /* De-allocates all pending stuff */
983 cx231xx_uninit_isoc(dev);
985 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
986 if (dma_q->p_left_data == NULL) {
987 cx231xx_info("out of mem\n");
993 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
994 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
996 dma_q->is_partial_line = 0;
998 dma_q->current_field = -1;
999 dma_q->field1_done = 0;
1000 dma_q->lines_per_field = dev->height / 2;
1001 dma_q->bytes_left_in_line = dev->width << 1;
1002 dma_q->lines_completed = 0;
1003 dma_q->mpeg_buffer_done = 0;
1004 dma_q->left_data_count = 0;
1005 dma_q->mpeg_buffer_completed = 0;
1006 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1007 dma_q->ps_head[0] = 0x00;
1008 dma_q->ps_head[1] = 0x00;
1009 dma_q->ps_head[2] = 0x01;
1010 dma_q->ps_head[3] = 0xBA;
1011 for (i = 0; i < 8; i++)
1012 dma_q->partial_buf[i] = 0;
1014 dev->video_mode.isoc_ctl.urb =
1015 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1016 if (!dev->video_mode.isoc_ctl.urb) {
1017 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1021 dev->video_mode.isoc_ctl.transfer_buffer =
1022 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1023 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1024 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1025 kfree(dev->video_mode.isoc_ctl.urb);
1029 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1030 dev->video_mode.isoc_ctl.buf = NULL;
1032 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1034 if (dev->mode_tv == 1)
1035 dev->video_mode.end_point_addr = 0x81;
1037 dev->video_mode.end_point_addr = 0x84;
1040 /* allocate urbs and transfer buffers */
1041 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1042 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1044 cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i);
1045 cx231xx_uninit_isoc(dev);
1048 dev->video_mode.isoc_ctl.urb[i] = urb;
1050 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1051 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1052 &urb->transfer_dma);
1053 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1054 cx231xx_err("unable to allocate %i bytes for transfer"
1057 in_interrupt() ? " while in int" : "");
1058 cx231xx_uninit_isoc(dev);
1061 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1064 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1066 usb_fill_int_urb(urb, dev->udev, pipe,
1067 dev->video_mode.isoc_ctl.transfer_buffer[i],
1068 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1070 urb->number_of_packets = max_packets;
1071 urb->transfer_flags = URB_ISO_ASAP;
1074 for (j = 0; j < max_packets; j++) {
1075 urb->iso_frame_desc[j].offset = k;
1076 urb->iso_frame_desc[j].length =
1077 dev->video_mode.isoc_ctl.max_pkt_size;
1078 k += dev->video_mode.isoc_ctl.max_pkt_size;
1082 init_waitqueue_head(&dma_q->wq);
1084 /* submit urbs and enables IRQ */
1085 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1086 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1089 cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1091 cx231xx_uninit_isoc(dev);
1096 if (dev->mode_tv == 0)
1097 cx231xx_capture_start(dev, 1, Raw_Video);
1099 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1103 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1106 * Allocate URBs and start IRQ
1108 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1109 int num_bufs, int max_pkt_size,
1110 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1112 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1118 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1120 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1122 video_mux(dev, dev->video_input);
1124 /* De-allocates all pending stuff */
1125 cx231xx_uninit_bulk(dev);
1127 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1128 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1130 dma_q->is_partial_line = 0;
1131 dma_q->last_sav = 0;
1132 dma_q->current_field = -1;
1133 dma_q->field1_done = 0;
1134 dma_q->lines_per_field = dev->height / 2;
1135 dma_q->bytes_left_in_line = dev->width << 1;
1136 dma_q->lines_completed = 0;
1137 dma_q->mpeg_buffer_done = 0;
1138 dma_q->left_data_count = 0;
1139 dma_q->mpeg_buffer_completed = 0;
1140 dma_q->ps_head[0] = 0x00;
1141 dma_q->ps_head[1] = 0x00;
1142 dma_q->ps_head[2] = 0x01;
1143 dma_q->ps_head[3] = 0xBA;
1144 for (i = 0; i < 8; i++)
1145 dma_q->partial_buf[i] = 0;
1147 dev->video_mode.bulk_ctl.urb =
1148 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1149 if (!dev->video_mode.bulk_ctl.urb) {
1150 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1154 dev->video_mode.bulk_ctl.transfer_buffer =
1155 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1156 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1157 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1158 kfree(dev->video_mode.bulk_ctl.urb);
1162 dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1163 dev->video_mode.bulk_ctl.buf = NULL;
1165 sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1167 if (dev->mode_tv == 1)
1168 dev->video_mode.end_point_addr = 0x81;
1170 dev->video_mode.end_point_addr = 0x84;
1173 /* allocate urbs and transfer buffers */
1174 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1175 urb = usb_alloc_urb(0, GFP_KERNEL);
1177 cx231xx_err("cannot alloc bulk_ctl.urb %i\n", i);
1178 cx231xx_uninit_bulk(dev);
1181 dev->video_mode.bulk_ctl.urb[i] = urb;
1182 urb->transfer_flags = 0;
1184 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1185 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1186 &urb->transfer_dma);
1187 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1188 cx231xx_err("unable to allocate %i bytes for transfer"
1191 in_interrupt() ? " while in int" : "");
1192 cx231xx_uninit_bulk(dev);
1195 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1197 pipe = usb_rcvbulkpipe(dev->udev,
1198 dev->video_mode.end_point_addr);
1199 usb_fill_bulk_urb(urb, dev->udev, pipe,
1200 dev->video_mode.bulk_ctl.transfer_buffer[i],
1201 sb_size, cx231xx_bulk_irq_callback, dma_q);
1204 init_waitqueue_head(&dma_q->wq);
1206 /* submit urbs and enables IRQ */
1207 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1208 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1211 cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1213 cx231xx_uninit_bulk(dev);
1218 if (dev->mode_tv == 0)
1219 cx231xx_capture_start(dev, 1, Raw_Video);
1221 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1225 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1226 void cx231xx_stop_TS1(struct cx231xx *dev)
1229 u8 val[4] = { 0, 0, 0, 0 };
1235 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1236 TS_MODE_REG, val, 4);
1242 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1243 TS1_CFG_REG, val, 4);
1245 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1246 void cx231xx_start_TS1(struct cx231xx *dev)
1249 u8 val[4] = { 0, 0, 0, 0 };
1255 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1256 TS_MODE_REG, val, 4);
1262 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1263 TS1_CFG_REG, val, 4);
1265 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1266 /*****************************************************************
1267 * Device Init/UnInit functions *
1268 ******************************************************************/
1269 int cx231xx_dev_init(struct cx231xx *dev)
1273 /* Initialize I2C bus */
1275 /* External Master 1 Bus */
1276 dev->i2c_bus[0].nr = 0;
1277 dev->i2c_bus[0].dev = dev;
1278 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1279 dev->i2c_bus[0].i2c_nostop = 0;
1280 dev->i2c_bus[0].i2c_reserve = 0;
1282 /* External Master 2 Bus */
1283 dev->i2c_bus[1].nr = 1;
1284 dev->i2c_bus[1].dev = dev;
1285 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1286 dev->i2c_bus[1].i2c_nostop = 0;
1287 dev->i2c_bus[1].i2c_reserve = 0;
1289 /* Internal Master 3 Bus */
1290 dev->i2c_bus[2].nr = 2;
1291 dev->i2c_bus[2].dev = dev;
1292 dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */
1293 dev->i2c_bus[2].i2c_nostop = 0;
1294 dev->i2c_bus[2].i2c_reserve = 0;
1296 /* register I2C buses */
1297 cx231xx_i2c_register(&dev->i2c_bus[0]);
1298 cx231xx_i2c_register(&dev->i2c_bus[1]);
1299 cx231xx_i2c_register(&dev->i2c_bus[2]);
1302 /* Note : with out calling set power mode function,
1303 afe can not be set up correctly */
1304 if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER ||
1305 dev->model == CX231XX_BOARD_HAUPPAUGE_USBLIVE2) {
1306 errCode = cx231xx_set_power_mode(dev,
1307 POLARIS_AVMODE_ENXTERNAL_AV);
1310 ("%s: Failed to set Power - errCode [%d]!\n",
1315 errCode = cx231xx_set_power_mode(dev,
1316 POLARIS_AVMODE_ANALOGT_TV);
1319 ("%s: Failed to set Power - errCode [%d]!\n",
1325 /* reset the Tuner */
1326 if ((dev->model == CX231XX_BOARD_CNXT_CARRAERA) ||
1327 (dev->model == CX231XX_BOARD_CNXT_RDE_250) ||
1328 (dev->model == CX231XX_BOARD_CNXT_SHELBY) ||
1329 (dev->model == CX231XX_BOARD_CNXT_RDU_250))
1330 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1332 /* initialize Colibri block */
1333 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1336 ("%s: cx231xx_afe init super block - errCode [%d]!\n",
1340 errCode = cx231xx_afe_init_channels(dev);
1343 ("%s: cx231xx_afe init channels - errCode [%d]!\n",
1348 /* Set DIF in By pass mode */
1349 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1352 ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1357 /* I2S block related functions */
1358 errCode = cx231xx_i2s_blk_initialize(dev);
1361 ("%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1366 /* init control pins */
1367 errCode = cx231xx_init_ctrl_pin_status(dev);
1369 cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1374 /* set AGC mode to Analog */
1375 switch (dev->model) {
1376 case CX231XX_BOARD_CNXT_CARRAERA:
1377 case CX231XX_BOARD_CNXT_RDE_250:
1378 case CX231XX_BOARD_CNXT_SHELBY:
1379 case CX231XX_BOARD_CNXT_RDU_250:
1380 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1382 case CX231XX_BOARD_CNXT_RDE_253S:
1383 case CX231XX_BOARD_CNXT_RDU_253S:
1384 case CX231XX_BOARD_HAUPPAUGE_EXETER:
1385 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1386 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1393 ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1398 /* set all alternate settings to zero initially */
1399 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1400 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1401 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1402 if (dev->board.has_dvb)
1403 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1405 /* set the I2C master port to 3 on channel 1 */
1406 errCode = cx231xx_enable_i2c_port_3(dev, true);
1410 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1412 void cx231xx_dev_uninit(struct cx231xx *dev)
1414 /* Un Initialize I2C bus */
1415 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1416 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1417 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1419 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1421 /*****************************************************************
1422 * G P I O related functions *
1423 ******************************************************************/
1424 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1425 u8 len, u8 request, u8 direction)
1428 struct VENDOR_REQUEST_IN ven_req;
1431 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1436 ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */
1438 ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */
1441 ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */
1443 ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */
1446 /* set index value */
1447 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1449 /* set wLength value */
1450 ven_req.wLength = len;
1452 /* set bData value */
1455 /* set the buffer for read / write */
1456 ven_req.pBuff = gpio_val;
1458 /* set the direction */
1460 ven_req.direction = USB_DIR_IN;
1461 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1463 ven_req.direction = USB_DIR_OUT;
1466 /* call common vendor command request */
1467 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1470 ("UsbInterface::sendCommand, failed with status -%d\n",
1476 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1478 /*****************************************************************
1479 * C O N T R O L - Register R E A D / W R I T E functions *
1480 *****************************************************************/
1481 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1483 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1488 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1492 tmp = *((u32 *) value);
1495 value[0] = (u8) tmp;
1496 value[1] = (u8) (tmp >> 8);
1497 value[2] = (u8) (tmp >> 16);
1498 value[3] = (u8) (tmp >> 24);
1501 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1506 /*****************************************************************
1507 * I 2 C Internal C O N T R O L functions *
1508 *****************************************************************/
1509 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1510 u8 saddr_len, u32 *data, u8 data_len, int master)
1513 struct cx231xx_i2c_xfer_data req_data;
1518 else if (saddr_len == 1)
1521 /* prepare xfer_data struct */
1522 req_data.dev_addr = dev_addr >> 1;
1523 req_data.direction = I2C_M_RD;
1524 req_data.saddr_len = saddr_len;
1525 req_data.saddr_dat = saddr;
1526 req_data.buf_size = data_len;
1527 req_data.p_buffer = (u8 *) value;
1529 /* usb send command */
1531 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1533 else if (master == 1)
1534 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1536 else if (master == 2)
1537 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1541 /* Copy the data read back to main buffer */
1544 else if (data_len == 4)
1546 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1548 else if (data_len > 4)
1549 *data = value[saddr];
1555 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1556 u8 saddr_len, u32 data, u8 data_len, int master)
1559 u8 value[4] = { 0, 0, 0, 0 };
1560 struct cx231xx_i2c_xfer_data req_data;
1562 value[0] = (u8) data;
1563 value[1] = (u8) (data >> 8);
1564 value[2] = (u8) (data >> 16);
1565 value[3] = (u8) (data >> 24);
1569 else if (saddr_len == 1)
1572 /* prepare xfer_data struct */
1573 req_data.dev_addr = dev_addr >> 1;
1574 req_data.direction = 0;
1575 req_data.saddr_len = saddr_len;
1576 req_data.saddr_dat = saddr;
1577 req_data.buf_size = data_len;
1578 req_data.p_buffer = value;
1580 /* usb send command */
1582 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1584 else if (master == 1)
1585 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1587 else if (master == 2)
1588 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1594 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1595 u8 saddr_len, u32 *data, u8 data_len)
1598 struct cx231xx_i2c_xfer_data req_data;
1599 u8 value[4] = { 0, 0, 0, 0 };
1603 else if (saddr_len == 1)
1606 /* prepare xfer_data struct */
1607 req_data.dev_addr = dev_addr >> 1;
1608 req_data.direction = I2C_M_RD;
1609 req_data.saddr_len = saddr_len;
1610 req_data.saddr_dat = saddr;
1611 req_data.buf_size = data_len;
1612 req_data.p_buffer = (u8 *) value;
1614 /* usb send command */
1615 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1618 /* Copy the data read back to main buffer */
1623 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1630 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1631 u8 saddr_len, u32 data, u8 data_len)
1634 u8 value[4] = { 0, 0, 0, 0 };
1635 struct cx231xx_i2c_xfer_data req_data;
1637 value[0] = (u8) data;
1638 value[1] = (u8) (data >> 8);
1639 value[2] = (u8) (data >> 16);
1640 value[3] = (u8) (data >> 24);
1644 else if (saddr_len == 1)
1647 /* prepare xfer_data struct */
1648 req_data.dev_addr = dev_addr >> 1;
1649 req_data.direction = 0;
1650 req_data.saddr_len = saddr_len;
1651 req_data.saddr_dat = saddr;
1652 req_data.buf_size = data_len;
1653 req_data.p_buffer = value;
1655 /* usb send command */
1656 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1661 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1662 u16 register_address, u8 bit_start, u8 bit_end,
1670 if (bit_start > (size - 1) || bit_end > (size - 1))
1675 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1679 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1686 mask = 1 << bit_end;
1687 for (i = bit_end; i > bit_start && i > 0; i--)
1688 mask = mask + (1 << (i - 1));
1690 value <<= bit_start;
1697 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1703 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1710 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1711 u16 saddr, u32 mask, u32 value)
1716 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1724 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1729 u32 cx231xx_set_field(u32 field_mask, u32 data)
1733 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)