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.
24 #include <linux/init.h>
25 #include <linux/list.h>
26 #include <linux/module.h>
27 #include <linux/slab.h>
28 #include <linux/vmalloc.h>
29 #include <media/v4l2-common.h>
30 #include <media/tuner.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 static int alt = CX231XX_PINOUT;
50 module_param(alt, int, 0644);
51 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
53 #define cx231xx_isocdbg(fmt, arg...) do {\
55 printk(KERN_INFO "%s %s :"fmt, \
56 dev->name, __func__ , ##arg); } while (0)
58 /*****************************************************************
59 * Device control list functions *
60 ******************************************************************/
62 LIST_HEAD(cx231xx_devlist);
63 static DEFINE_MUTEX(cx231xx_devlist_mutex);
66 * cx231xx_realease_resources()
67 * unregisters the v4l2,i2c and usb devices
68 * called when the device gets disconected or at module unload
70 void cx231xx_remove_from_devlist(struct cx231xx *dev)
74 if (dev->udev == NULL)
77 if (atomic_read(&dev->devlist_count) > 0) {
78 mutex_lock(&cx231xx_devlist_mutex);
79 list_del(&dev->devlist);
80 atomic_dec(&dev->devlist_count);
81 mutex_unlock(&cx231xx_devlist_mutex);
85 void cx231xx_add_into_devlist(struct cx231xx *dev)
87 mutex_lock(&cx231xx_devlist_mutex);
88 list_add_tail(&dev->devlist, &cx231xx_devlist);
89 atomic_inc(&dev->devlist_count);
90 mutex_unlock(&cx231xx_devlist_mutex);
93 static LIST_HEAD(cx231xx_extension_devlist);
95 int cx231xx_register_extension(struct cx231xx_ops *ops)
97 struct cx231xx *dev = NULL;
99 mutex_lock(&cx231xx_devlist_mutex);
100 list_add_tail(&ops->next, &cx231xx_extension_devlist);
101 list_for_each_entry(dev, &cx231xx_devlist, devlist) {
103 dev_info(dev->dev, "%s initialized\n", ops->name);
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) {
117 dev_info(dev->dev, "%s removed\n", ops->name);
120 list_del(&ops->next);
121 mutex_unlock(&cx231xx_devlist_mutex);
123 EXPORT_SYMBOL(cx231xx_unregister_extension);
125 void cx231xx_init_extension(struct cx231xx *dev)
127 struct cx231xx_ops *ops = NULL;
129 mutex_lock(&cx231xx_devlist_mutex);
130 if (!list_empty(&cx231xx_extension_devlist)) {
131 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
136 mutex_unlock(&cx231xx_devlist_mutex);
139 void cx231xx_close_extension(struct cx231xx *dev)
141 struct cx231xx_ops *ops = NULL;
143 mutex_lock(&cx231xx_devlist_mutex);
144 if (!list_empty(&cx231xx_extension_devlist)) {
145 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
150 mutex_unlock(&cx231xx_devlist_mutex);
153 /****************************************************************
154 * U S B related functions *
155 *****************************************************************/
156 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
157 struct cx231xx_i2c_xfer_data *req_data)
160 struct cx231xx *dev = i2c_bus->dev;
161 struct VENDOR_REQUEST_IN ven_req;
168 if (dev->state & DEV_DISCONNECTED)
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 ven_req.wValue = (req_data->dev_addr << 9 | _i2c_period << 4 |
180 saddr_len << 2 | _i2c_nostop << 1 | I2C_SYNC |
183 /* set channel number */
184 if (req_data->direction & I2C_M_RD) {
185 /* channel number, for read,spec required channel_num +4 */
186 ven_req.bRequest = i2c_bus->nr + 4;
188 ven_req.bRequest = i2c_bus->nr; /* channel number, */
190 /* set index value */
193 ven_req.wIndex = 0; /* need check */
196 ven_req.wIndex = (req_data->saddr_dat & 0xff);
199 ven_req.wIndex = req_data->saddr_dat;
203 /* set wLength value */
204 ven_req.wLength = req_data->buf_size;
206 /* set bData value */
209 /* set the direction */
210 if (req_data->direction) {
211 ven_req.direction = USB_DIR_IN;
212 memset(req_data->p_buffer, 0x00, ven_req.wLength);
214 ven_req.direction = USB_DIR_OUT;
216 /* set the buffer for read / write */
217 ven_req.pBuff = req_data->p_buffer;
220 /* call common vendor command request */
221 status = cx231xx_send_vendor_cmd(dev, &ven_req);
222 if (status < 0 && !dev->i2c_scan_running) {
223 dev_err(dev->dev, "%s: failed with status -%d\n",
229 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
232 * Sends/Receives URB control messages, assuring to use a kalloced buffer
233 * for all operations (dev->urb_buf), to avoid using stacked buffers, as
234 * they aren't safe for usage with USB, due to DMA restrictions.
235 * Also implements the debug code for control URB's.
237 static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
238 __u8 request, __u8 requesttype, __u16 value, __u16 index,
239 void *data, __u16 size, int timeout)
244 printk(KERN_DEBUG "%s: (pipe 0x%08x): "
245 "%s: %02x %02x %02x %02x %02x %02x %02x %02x ",
248 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
251 value & 0xff, value >> 8,
252 index & 0xff, index >> 8,
253 size & 0xff, size >> 8);
254 if (!(requesttype & USB_DIR_IN)) {
255 printk(KERN_CONT ">>>");
256 for (i = 0; i < size; i++)
257 printk(KERN_CONT " %02x",
258 ((unsigned char *)data)[i]);
262 /* Do the real call to usb_control_msg */
263 mutex_lock(&dev->ctrl_urb_lock);
264 if (!(requesttype & USB_DIR_IN) && size)
265 memcpy(dev->urb_buf, data, size);
266 rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
267 index, dev->urb_buf, size, timeout);
268 if ((requesttype & USB_DIR_IN) && size)
269 memcpy(data, dev->urb_buf, size);
270 mutex_unlock(&dev->ctrl_urb_lock);
273 if (unlikely(rc < 0)) {
274 printk(KERN_CONT "FAILED!\n");
278 if ((requesttype & USB_DIR_IN)) {
279 printk(KERN_CONT "<<<");
280 for (i = 0; i < size; i++)
281 printk(KERN_CONT " %02x",
282 ((unsigned char *)data)[i]);
284 printk(KERN_CONT "\n");
292 * cx231xx_read_ctrl_reg()
293 * reads data from the usb device specifying bRequest and wValue
295 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
300 int pipe = usb_rcvctrlpipe(dev->udev, 0);
302 if (dev->state & DEV_DISCONNECTED)
305 if (len > URB_MAX_CTRL_SIZE)
310 val = ENABLE_ONE_BYTE;
313 val = ENABLE_TWE_BYTE;
316 val = ENABLE_THREE_BYTE;
319 val = ENABLE_FOUR_BYTE;
322 val = 0xFF; /* invalid option */
328 ret = __usb_control_msg(dev, pipe, req,
329 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
330 val, reg, buf, len, HZ);
334 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
335 struct VENDOR_REQUEST_IN *ven_req)
342 if (dev->state & DEV_DISCONNECTED)
345 if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
348 if (ven_req->direction)
349 pipe = usb_rcvctrlpipe(dev->udev, 0);
351 pipe = usb_sndctrlpipe(dev->udev, 0);
354 * If the cx23102 read more than 4 bytes with i2c bus,
355 * need chop to 4 byte per request
357 if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
358 (ven_req->bRequest == 0x5) ||
359 (ven_req->bRequest == 0x6))) {
361 pdata = ven_req->pBuff;
364 unsend_size = ven_req->wLength;
366 /* the first package */
367 ven_req->wValue = ven_req->wValue & 0xFFFB;
368 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
369 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
370 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
371 ven_req->wValue, ven_req->wIndex, pdata,
373 unsend_size = unsend_size - 4;
375 /* the middle package */
376 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
377 while (unsend_size - 4 > 0) {
379 ret = __usb_control_msg(dev, pipe,
381 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
382 ven_req->wValue, ven_req->wIndex, pdata,
384 unsend_size = unsend_size - 4;
387 /* the last package */
388 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
390 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
391 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
392 ven_req->wValue, ven_req->wIndex, pdata,
395 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
396 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
397 ven_req->wValue, ven_req->wIndex,
398 ven_req->pBuff, ven_req->wLength, HZ);
405 * cx231xx_write_ctrl_reg()
406 * sends data to the usb device, specifying bRequest
408 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
413 int pipe = usb_sndctrlpipe(dev->udev, 0);
415 if (dev->state & DEV_DISCONNECTED)
418 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
423 val = ENABLE_ONE_BYTE;
426 val = ENABLE_TWE_BYTE;
429 val = ENABLE_THREE_BYTE;
432 val = ENABLE_FOUR_BYTE;
435 val = 0xFF; /* invalid option */
444 cx231xx_isocdbg("(pipe 0x%08x): "
445 "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
447 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
448 req, 0, val, reg & 0xff,
449 reg >> 8, len & 0xff, len >> 8);
451 for (byte = 0; byte < len; byte++)
452 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
453 cx231xx_isocdbg("\n");
456 ret = __usb_control_msg(dev, pipe, req,
457 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
458 val, reg, buf, len, HZ);
463 /****************************************************************
464 * USB Alternate Setting functions *
465 *****************************************************************/
467 int cx231xx_set_video_alternate(struct cx231xx *dev)
469 int errCode, prev_alt = dev->video_mode.alt;
470 unsigned int min_pkt_size = dev->width * 2 + 4;
471 u32 usb_interface_index = 0;
473 /* When image size is bigger than a certain value,
474 the frame size should be increased, otherwise, only
475 green screen will be received.
477 if (dev->width * 2 * dev->height > 720 * 240 * 2)
480 if (dev->width > 360) {
481 /* resolutions: 720,704,640 */
482 dev->video_mode.alt = 3;
483 } else if (dev->width > 180) {
484 /* resolutions: 360,352,320,240 */
485 dev->video_mode.alt = 2;
486 } else if (dev->width > 0) {
487 /* resolutions: 180,176,160,128,88 */
488 dev->video_mode.alt = 1;
490 /* Change to alt0 BULK to release USB bandwidth */
491 dev->video_mode.alt = 0;
494 if (dev->USE_ISO == 0)
495 dev->video_mode.alt = 0;
497 cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
499 /* Get the correct video interface Index */
500 usb_interface_index =
501 dev->current_pcb_config.hs_config_info[0].interface_info.
504 if (dev->video_mode.alt != prev_alt) {
505 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
506 min_pkt_size, dev->video_mode.alt);
508 if (dev->video_mode.alt_max_pkt_size != NULL)
509 dev->video_mode.max_pkt_size =
510 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
511 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
513 dev->video_mode.max_pkt_size);
515 usb_set_interface(dev->udev, usb_interface_index,
516 dev->video_mode.alt);
519 "cannot change alt number to %d (error=%i)\n",
520 dev->video_mode.alt, errCode);
527 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
530 u32 usb_interface_index = 0;
531 u32 max_pkt_size = 0;
535 usb_interface_index =
536 dev->current_pcb_config.hs_config_info[0].interface_info.
538 dev->ts1_mode.alt = alt;
539 if (dev->ts1_mode.alt_max_pkt_size != NULL)
540 max_pkt_size = dev->ts1_mode.max_pkt_size =
541 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
544 usb_interface_index =
545 dev->current_pcb_config.hs_config_info[0].interface_info.
549 usb_interface_index =
550 dev->current_pcb_config.hs_config_info[0].interface_info.
553 if (dev->adev.alt_max_pkt_size != NULL)
554 max_pkt_size = dev->adev.max_pkt_size =
555 dev->adev.alt_max_pkt_size[dev->adev.alt];
558 usb_interface_index =
559 dev->current_pcb_config.hs_config_info[0].interface_info.
561 dev->video_mode.alt = alt;
562 if (dev->video_mode.alt_max_pkt_size != NULL)
563 max_pkt_size = dev->video_mode.max_pkt_size =
564 dev->video_mode.alt_max_pkt_size[dev->video_mode.
568 if (dev->board.no_alt_vanc)
570 usb_interface_index =
571 dev->current_pcb_config.hs_config_info[0].interface_info.
573 dev->vbi_mode.alt = alt;
574 if (dev->vbi_mode.alt_max_pkt_size != NULL)
575 max_pkt_size = dev->vbi_mode.max_pkt_size =
576 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
579 usb_interface_index =
580 dev->current_pcb_config.hs_config_info[0].interface_info.
582 dev->sliced_cc_mode.alt = alt;
583 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
584 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
585 dev->sliced_cc_mode.alt_max_pkt_size[dev->
593 if (alt > 0 && max_pkt_size == 0) {
595 "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
596 usb_interface_index, alt);
597 /*To workaround error number=-71 on EP0 for videograbber,
598 need add following codes.*/
599 if (dev->board.no_alt_vanc)
603 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
604 "Interface = %d\n", alt, max_pkt_size,
605 usb_interface_index);
607 if (usb_interface_index > 0) {
608 status = usb_set_interface(dev->udev, usb_interface_index, alt);
611 "can't change interface %d alt no. to %d (err=%i)\n",
612 usb_interface_index, alt, status);
619 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
621 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
628 /* Send GPIO reset sequences specified at board entry */
629 while (gpio->sleep >= 0) {
630 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
642 int cx231xx_demod_reset(struct cx231xx *dev)
646 u8 value[4] = { 0, 0, 0, 0 };
648 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
651 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
652 value[0], value[1], value[2], value[3]);
654 cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
657 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
658 PWR_CTL_EN, value, 4);
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);
671 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
674 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
675 value[0], value[1], value[2], value[3]);
679 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
680 int is_fw_load(struct cx231xx *dev)
682 return cx231xx_check_fw(dev);
684 EXPORT_SYMBOL_GPL(is_fw_load);
686 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
690 if (dev->mode == set_mode)
693 if (set_mode == CX231XX_SUSPEND) {
694 /* Set the chip in power saving mode */
695 dev->mode = set_mode;
698 /* Resource is locked */
699 if (dev->mode != CX231XX_SUSPEND)
702 dev->mode = set_mode;
704 if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
705 /* set AGC mode to Digital */
706 switch (dev->model) {
707 case CX231XX_BOARD_CNXT_CARRAERA:
708 case CX231XX_BOARD_CNXT_RDE_250:
709 case CX231XX_BOARD_CNXT_SHELBY:
710 case CX231XX_BOARD_CNXT_RDU_250:
711 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
713 case CX231XX_BOARD_CNXT_RDE_253S:
714 case CX231XX_BOARD_CNXT_RDU_253S:
715 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
716 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
718 case CX231XX_BOARD_HAUPPAUGE_EXETER:
719 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
720 errCode = cx231xx_set_power_mode(dev,
721 POLARIS_AVMODE_DIGITAL);
726 } else/* Set Analog Power mode */ {
727 /* set AGC mode to Analog */
728 switch (dev->model) {
729 case CX231XX_BOARD_CNXT_CARRAERA:
730 case CX231XX_BOARD_CNXT_RDE_250:
731 case CX231XX_BOARD_CNXT_SHELBY:
732 case CX231XX_BOARD_CNXT_RDU_250:
733 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
735 case CX231XX_BOARD_CNXT_RDE_253S:
736 case CX231XX_BOARD_CNXT_RDU_253S:
737 case CX231XX_BOARD_HAUPPAUGE_EXETER:
738 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
739 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
740 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
741 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
742 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
750 dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
751 dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
758 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
760 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
767 buffer = kzalloc(4096, GFP_KERNEL);
770 memcpy(&buffer[0], firmware, 4096);
772 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
773 buffer, 4096, &actlen, 2000);
777 "bulk message failed: %d (%d/%d)", ret,
780 errCode = actlen != size ? -1 : 0;
786 /*****************************************************************
787 * URB Streaming functions *
788 ******************************************************************/
791 * IRQ callback, called by URB callback
793 static void cx231xx_isoc_irq_callback(struct urb *urb)
795 struct cx231xx_dmaqueue *dma_q = urb->context;
796 struct cx231xx_video_mode *vmode =
797 container_of(dma_q, struct cx231xx_video_mode, vidq);
798 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
801 switch (urb->status) {
802 case 0: /* success */
803 case -ETIMEDOUT: /* NAK */
805 case -ECONNRESET: /* kill */
810 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
814 /* Copy data from URB */
815 spin_lock(&dev->video_mode.slock);
816 dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
817 spin_unlock(&dev->video_mode.slock);
819 /* Reset urb buffers */
820 for (i = 0; i < urb->number_of_packets; i++) {
821 urb->iso_frame_desc[i].status = 0;
822 urb->iso_frame_desc[i].actual_length = 0;
825 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
827 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
831 /*****************************************************************
832 * URB Streaming functions *
833 ******************************************************************/
836 * IRQ callback, called by URB callback
838 static void cx231xx_bulk_irq_callback(struct urb *urb)
840 struct cx231xx_dmaqueue *dma_q = urb->context;
841 struct cx231xx_video_mode *vmode =
842 container_of(dma_q, struct cx231xx_video_mode, vidq);
843 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
845 switch (urb->status) {
846 case 0: /* success */
847 case -ETIMEDOUT: /* NAK */
849 case -ECONNRESET: /* kill */
853 case -EPIPE: /* stall */
854 cx231xx_isocdbg("urb completion error - device is stalled.\n");
857 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
861 /* Copy data from URB */
862 spin_lock(&dev->video_mode.slock);
863 dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
864 spin_unlock(&dev->video_mode.slock);
866 /* Reset urb buffers */
867 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
869 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
874 * Stop and Deallocate URBs
876 void cx231xx_uninit_isoc(struct cx231xx *dev)
878 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
881 bool broken_pipe = false;
883 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
885 dev->video_mode.isoc_ctl.nfields = -1;
886 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
887 urb = dev->video_mode.isoc_ctl.urb[i];
889 if (!irqs_disabled())
894 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
895 usb_free_coherent(dev->udev,
896 urb->transfer_buffer_length,
897 dev->video_mode.isoc_ctl.
901 if (urb->status == -EPIPE) {
905 dev->video_mode.isoc_ctl.urb[i] = NULL;
907 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
911 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
912 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
914 kfree(dev->video_mode.isoc_ctl.urb);
915 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
916 kfree(dma_q->p_left_data);
918 dev->video_mode.isoc_ctl.urb = NULL;
919 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
920 dev->video_mode.isoc_ctl.num_bufs = 0;
921 dma_q->p_left_data = NULL;
923 if (dev->mode_tv == 0)
924 cx231xx_capture_start(dev, 0, Raw_Video);
926 cx231xx_capture_start(dev, 0, TS1_serial_mode);
930 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
933 * Stop and Deallocate URBs
935 void cx231xx_uninit_bulk(struct cx231xx *dev)
937 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
940 bool broken_pipe = false;
942 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
944 dev->video_mode.bulk_ctl.nfields = -1;
945 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
946 urb = dev->video_mode.bulk_ctl.urb[i];
948 if (!irqs_disabled())
953 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
954 usb_free_coherent(dev->udev,
955 urb->transfer_buffer_length,
956 dev->video_mode.bulk_ctl.
960 if (urb->status == -EPIPE) {
964 dev->video_mode.bulk_ctl.urb[i] = NULL;
966 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
970 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
971 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
973 kfree(dev->video_mode.bulk_ctl.urb);
974 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
975 kfree(dma_q->p_left_data);
977 dev->video_mode.bulk_ctl.urb = NULL;
978 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
979 dev->video_mode.bulk_ctl.num_bufs = 0;
980 dma_q->p_left_data = NULL;
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 /* De-allocates all pending stuff */
1006 cx231xx_uninit_isoc(dev);
1008 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1009 if (dma_q->p_left_data == NULL)
1012 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1013 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1015 dma_q->is_partial_line = 0;
1016 dma_q->last_sav = 0;
1017 dma_q->current_field = -1;
1018 dma_q->field1_done = 0;
1019 dma_q->lines_per_field = dev->height / 2;
1020 dma_q->bytes_left_in_line = dev->width << 1;
1021 dma_q->lines_completed = 0;
1022 dma_q->mpeg_buffer_done = 0;
1023 dma_q->left_data_count = 0;
1024 dma_q->mpeg_buffer_completed = 0;
1025 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1026 dma_q->ps_head[0] = 0x00;
1027 dma_q->ps_head[1] = 0x00;
1028 dma_q->ps_head[2] = 0x01;
1029 dma_q->ps_head[3] = 0xBA;
1030 for (i = 0; i < 8; i++)
1031 dma_q->partial_buf[i] = 0;
1033 dev->video_mode.isoc_ctl.urb =
1034 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1035 if (!dev->video_mode.isoc_ctl.urb) {
1037 "cannot alloc memory for usb buffers\n");
1041 dev->video_mode.isoc_ctl.transfer_buffer =
1042 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1043 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1045 "cannot allocate memory for usbtransfer\n");
1046 kfree(dev->video_mode.isoc_ctl.urb);
1050 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1051 dev->video_mode.isoc_ctl.buf = NULL;
1053 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1055 if (dev->mode_tv == 1)
1056 dev->video_mode.end_point_addr = 0x81;
1058 dev->video_mode.end_point_addr = 0x84;
1061 /* allocate urbs and transfer buffers */
1062 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1063 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1065 cx231xx_uninit_isoc(dev);
1068 dev->video_mode.isoc_ctl.urb[i] = urb;
1070 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1071 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1072 &urb->transfer_dma);
1073 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1075 "unable to allocate %i bytes for transfer buffer %i%s\n",
1077 in_interrupt() ? " while in int" : "");
1078 cx231xx_uninit_isoc(dev);
1081 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1084 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1086 usb_fill_int_urb(urb, dev->udev, pipe,
1087 dev->video_mode.isoc_ctl.transfer_buffer[i],
1088 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1090 urb->number_of_packets = max_packets;
1091 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1094 for (j = 0; j < max_packets; j++) {
1095 urb->iso_frame_desc[j].offset = k;
1096 urb->iso_frame_desc[j].length =
1097 dev->video_mode.isoc_ctl.max_pkt_size;
1098 k += dev->video_mode.isoc_ctl.max_pkt_size;
1102 init_waitqueue_head(&dma_q->wq);
1104 /* submit urbs and enables IRQ */
1105 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1106 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1110 "submit of urb %i failed (error=%i)\n", i,
1112 cx231xx_uninit_isoc(dev);
1117 if (dev->mode_tv == 0)
1118 cx231xx_capture_start(dev, 1, Raw_Video);
1120 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1124 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1127 * Allocate URBs and start IRQ
1129 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1130 int num_bufs, int max_pkt_size,
1131 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1133 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1139 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1141 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1143 video_mux(dev, dev->video_input);
1145 /* De-allocates all pending stuff */
1146 cx231xx_uninit_bulk(dev);
1148 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1149 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1151 dma_q->is_partial_line = 0;
1152 dma_q->last_sav = 0;
1153 dma_q->current_field = -1;
1154 dma_q->field1_done = 0;
1155 dma_q->lines_per_field = dev->height / 2;
1156 dma_q->bytes_left_in_line = dev->width << 1;
1157 dma_q->lines_completed = 0;
1158 dma_q->mpeg_buffer_done = 0;
1159 dma_q->left_data_count = 0;
1160 dma_q->mpeg_buffer_completed = 0;
1161 dma_q->ps_head[0] = 0x00;
1162 dma_q->ps_head[1] = 0x00;
1163 dma_q->ps_head[2] = 0x01;
1164 dma_q->ps_head[3] = 0xBA;
1165 for (i = 0; i < 8; i++)
1166 dma_q->partial_buf[i] = 0;
1168 dev->video_mode.bulk_ctl.urb =
1169 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1170 if (!dev->video_mode.bulk_ctl.urb) {
1172 "cannot alloc memory for usb buffers\n");
1176 dev->video_mode.bulk_ctl.transfer_buffer =
1177 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1178 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1180 "cannot allocate memory for usbtransfer\n");
1181 kfree(dev->video_mode.bulk_ctl.urb);
1185 dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1186 dev->video_mode.bulk_ctl.buf = NULL;
1188 sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1190 if (dev->mode_tv == 1)
1191 dev->video_mode.end_point_addr = 0x81;
1193 dev->video_mode.end_point_addr = 0x84;
1196 /* allocate urbs and transfer buffers */
1197 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1198 urb = usb_alloc_urb(0, GFP_KERNEL);
1200 cx231xx_uninit_bulk(dev);
1203 dev->video_mode.bulk_ctl.urb[i] = urb;
1204 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1206 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1207 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1208 &urb->transfer_dma);
1209 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1211 "unable to allocate %i bytes for transfer buffer %i%s\n",
1213 in_interrupt() ? " while in int" : "");
1214 cx231xx_uninit_bulk(dev);
1217 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1219 pipe = usb_rcvbulkpipe(dev->udev,
1220 dev->video_mode.end_point_addr);
1221 usb_fill_bulk_urb(urb, dev->udev, pipe,
1222 dev->video_mode.bulk_ctl.transfer_buffer[i],
1223 sb_size, cx231xx_bulk_irq_callback, dma_q);
1227 rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1230 "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1232 cx231xx_uninit_bulk(dev);
1236 init_waitqueue_head(&dma_q->wq);
1238 /* submit urbs and enables IRQ */
1239 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1240 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1244 "submit of urb %i failed (error=%i)\n", i, rc);
1245 cx231xx_uninit_bulk(dev);
1250 if (dev->mode_tv == 0)
1251 cx231xx_capture_start(dev, 1, Raw_Video);
1253 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1257 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1258 void cx231xx_stop_TS1(struct cx231xx *dev)
1260 u8 val[4] = { 0, 0, 0, 0 };
1266 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1267 TS_MODE_REG, val, 4);
1273 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1274 TS1_CFG_REG, val, 4);
1276 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1277 void cx231xx_start_TS1(struct cx231xx *dev)
1279 u8 val[4] = { 0, 0, 0, 0 };
1285 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1286 TS_MODE_REG, val, 4);
1292 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1293 TS1_CFG_REG, val, 4);
1295 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1296 /*****************************************************************
1297 * Device Init/UnInit functions *
1298 ******************************************************************/
1299 int cx231xx_dev_init(struct cx231xx *dev)
1303 /* Initialize I2C bus */
1305 /* External Master 1 Bus */
1306 dev->i2c_bus[0].nr = 0;
1307 dev->i2c_bus[0].dev = dev;
1308 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1309 dev->i2c_bus[0].i2c_nostop = 0;
1310 dev->i2c_bus[0].i2c_reserve = 0;
1312 /* External Master 2 Bus */
1313 dev->i2c_bus[1].nr = 1;
1314 dev->i2c_bus[1].dev = dev;
1315 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1316 dev->i2c_bus[1].i2c_nostop = 0;
1317 dev->i2c_bus[1].i2c_reserve = 0;
1319 /* Internal Master 3 Bus */
1320 dev->i2c_bus[2].nr = 2;
1321 dev->i2c_bus[2].dev = dev;
1322 dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */
1323 dev->i2c_bus[2].i2c_nostop = 0;
1324 dev->i2c_bus[2].i2c_reserve = 0;
1326 /* register I2C buses */
1327 errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1330 errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1333 errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1337 errCode = cx231xx_i2c_mux_create(dev);
1340 "%s: Failed to create I2C mux\n", __func__);
1343 errCode = cx231xx_i2c_mux_register(dev, 0);
1347 errCode = cx231xx_i2c_mux_register(dev, 1);
1351 /* scan the real bus segments in the order of physical port numbers */
1352 cx231xx_do_i2c_scan(dev, I2C_0);
1353 cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1354 cx231xx_do_i2c_scan(dev, I2C_2);
1355 cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1358 /* Note : with out calling set power mode function,
1359 afe can not be set up correctly */
1360 if (dev->board.external_av) {
1361 errCode = cx231xx_set_power_mode(dev,
1362 POLARIS_AVMODE_ENXTERNAL_AV);
1365 "%s: Failed to set Power - errCode [%d]!\n",
1370 errCode = cx231xx_set_power_mode(dev,
1371 POLARIS_AVMODE_ANALOGT_TV);
1374 "%s: Failed to set Power - errCode [%d]!\n",
1380 /* reset the Tuner, if it is a Xceive tuner */
1381 if ((dev->board.tuner_type == TUNER_XC5000) ||
1382 (dev->board.tuner_type == TUNER_XC2028))
1383 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1385 /* initialize Colibri block */
1386 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1389 "%s: cx231xx_afe init super block - errCode [%d]!\n",
1393 errCode = cx231xx_afe_init_channels(dev);
1396 "%s: cx231xx_afe init channels - errCode [%d]!\n",
1401 /* Set DIF in By pass mode */
1402 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1405 "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1410 /* I2S block related functions */
1411 errCode = cx231xx_i2s_blk_initialize(dev);
1414 "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1419 /* init control pins */
1420 errCode = cx231xx_init_ctrl_pin_status(dev);
1423 "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1428 /* set AGC mode to Analog */
1429 switch (dev->model) {
1430 case CX231XX_BOARD_CNXT_CARRAERA:
1431 case CX231XX_BOARD_CNXT_RDE_250:
1432 case CX231XX_BOARD_CNXT_SHELBY:
1433 case CX231XX_BOARD_CNXT_RDU_250:
1434 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1436 case CX231XX_BOARD_CNXT_RDE_253S:
1437 case CX231XX_BOARD_CNXT_RDU_253S:
1438 case CX231XX_BOARD_HAUPPAUGE_EXETER:
1439 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1440 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1441 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1442 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1443 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1450 "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1455 /* set all alternate settings to zero initially */
1456 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1457 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1458 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1459 if (dev->board.has_dvb)
1460 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1465 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1467 void cx231xx_dev_uninit(struct cx231xx *dev)
1469 /* Un Initialize I2C bus */
1470 cx231xx_i2c_mux_unregister(dev);
1471 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1472 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1473 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1475 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1477 /*****************************************************************
1478 * G P I O related functions *
1479 ******************************************************************/
1480 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1481 u8 len, u8 request, u8 direction)
1484 struct VENDOR_REQUEST_IN ven_req;
1487 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1492 ven_req.bRequest = VRT_GET_GPIO; /* 0x9 gpio */
1494 ven_req.bRequest = VRT_SET_GPIO; /* 0x8 gpio */
1497 ven_req.bRequest = VRT_GET_GPIE; /* 0xb gpie */
1499 ven_req.bRequest = VRT_SET_GPIE; /* 0xa gpie */
1502 /* set index value */
1503 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1505 /* set wLength value */
1506 ven_req.wLength = len;
1508 /* set bData value */
1511 /* set the buffer for read / write */
1512 ven_req.pBuff = gpio_val;
1514 /* set the direction */
1516 ven_req.direction = USB_DIR_IN;
1517 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1519 ven_req.direction = USB_DIR_OUT;
1522 /* call common vendor command request */
1523 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1525 dev_err(dev->dev, "%s: failed with status -%d\n",
1531 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1533 /*****************************************************************
1534 * C O N T R O L - Register R E A D / W R I T E functions *
1535 *****************************************************************/
1536 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1538 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1543 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1547 tmp = le32_to_cpu(*((__le32 *) value));
1550 value[0] = (u8) tmp;
1551 value[1] = (u8) (tmp >> 8);
1552 value[2] = (u8) (tmp >> 16);
1553 value[3] = (u8) (tmp >> 24);
1556 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1561 /*****************************************************************
1562 * I 2 C Internal C O N T R O L functions *
1563 *****************************************************************/
1564 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1565 u8 saddr_len, u32 *data, u8 data_len, int master)
1568 struct cx231xx_i2c_xfer_data req_data;
1573 else if (saddr_len == 1)
1576 /* prepare xfer_data struct */
1577 req_data.dev_addr = dev_addr >> 1;
1578 req_data.direction = I2C_M_RD;
1579 req_data.saddr_len = saddr_len;
1580 req_data.saddr_dat = saddr;
1581 req_data.buf_size = data_len;
1582 req_data.p_buffer = (u8 *) value;
1584 /* usb send command */
1586 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1588 else if (master == 1)
1589 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1591 else if (master == 2)
1592 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1596 /* Copy the data read back to main buffer */
1599 else if (data_len == 4)
1601 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1603 else if (data_len > 4)
1604 *data = value[saddr];
1610 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1611 u8 saddr_len, u32 data, u8 data_len, int master)
1614 u8 value[4] = { 0, 0, 0, 0 };
1615 struct cx231xx_i2c_xfer_data req_data;
1617 value[0] = (u8) data;
1618 value[1] = (u8) (data >> 8);
1619 value[2] = (u8) (data >> 16);
1620 value[3] = (u8) (data >> 24);
1624 else if (saddr_len == 1)
1627 /* prepare xfer_data struct */
1628 req_data.dev_addr = dev_addr >> 1;
1629 req_data.direction = 0;
1630 req_data.saddr_len = saddr_len;
1631 req_data.saddr_dat = saddr;
1632 req_data.buf_size = data_len;
1633 req_data.p_buffer = value;
1635 /* usb send command */
1637 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1639 else if (master == 1)
1640 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1642 else if (master == 2)
1643 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1649 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1650 u8 saddr_len, u32 *data, u8 data_len)
1653 struct cx231xx_i2c_xfer_data req_data;
1654 u8 value[4] = { 0, 0, 0, 0 };
1658 else if (saddr_len == 1)
1661 /* prepare xfer_data struct */
1662 req_data.dev_addr = dev_addr >> 1;
1663 req_data.direction = I2C_M_RD;
1664 req_data.saddr_len = saddr_len;
1665 req_data.saddr_dat = saddr;
1666 req_data.buf_size = data_len;
1667 req_data.p_buffer = (u8 *) value;
1669 /* usb send command */
1670 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1673 /* Copy the data read back to main buffer */
1678 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1685 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1686 u8 saddr_len, u32 data, u8 data_len)
1689 u8 value[4] = { 0, 0, 0, 0 };
1690 struct cx231xx_i2c_xfer_data req_data;
1692 value[0] = (u8) data;
1693 value[1] = (u8) (data >> 8);
1694 value[2] = (u8) (data >> 16);
1695 value[3] = (u8) (data >> 24);
1699 else if (saddr_len == 1)
1702 /* prepare xfer_data struct */
1703 req_data.dev_addr = dev_addr >> 1;
1704 req_data.direction = 0;
1705 req_data.saddr_len = saddr_len;
1706 req_data.saddr_dat = saddr;
1707 req_data.buf_size = data_len;
1708 req_data.p_buffer = value;
1710 /* usb send command */
1711 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1716 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1717 u16 register_address, u8 bit_start, u8 bit_end,
1725 if (bit_start > (size - 1) || bit_end > (size - 1))
1730 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1734 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1741 mask = 1 << bit_end;
1742 for (i = bit_end; i > bit_start && i > 0; i--)
1743 mask = mask + (1 << (i - 1));
1745 value <<= bit_start;
1752 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1758 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1765 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1766 u16 saddr, u32 mask, u32 value)
1771 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1779 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1784 u32 cx231xx_set_field(u32 field_mask, u32 data)
1788 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)