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 /* Internal Master 3 Bus can send
362 * and receive only 4 bytes per time
364 (ven_req->bRequest == 0x2))) {
366 pdata = ven_req->pBuff;
369 unsend_size = ven_req->wLength;
371 /* the first package */
372 ven_req->wValue = ven_req->wValue & 0xFFFB;
373 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
374 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
375 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
376 ven_req->wValue, ven_req->wIndex, pdata,
378 unsend_size = unsend_size - 4;
380 /* the middle package */
381 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
382 while (unsend_size - 4 > 0) {
384 ret = __usb_control_msg(dev, pipe,
386 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
387 ven_req->wValue, ven_req->wIndex, pdata,
389 unsend_size = unsend_size - 4;
392 /* the last package */
393 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
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, pdata,
400 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
401 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
402 ven_req->wValue, ven_req->wIndex,
403 ven_req->pBuff, ven_req->wLength, HZ);
410 * cx231xx_write_ctrl_reg()
411 * sends data to the usb device, specifying bRequest
413 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
418 int pipe = usb_sndctrlpipe(dev->udev, 0);
420 if (dev->state & DEV_DISCONNECTED)
423 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
428 val = ENABLE_ONE_BYTE;
431 val = ENABLE_TWE_BYTE;
434 val = ENABLE_THREE_BYTE;
437 val = ENABLE_FOUR_BYTE;
440 val = 0xFF; /* invalid option */
449 cx231xx_isocdbg("(pipe 0x%08x): "
450 "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
452 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
453 req, 0, val, reg & 0xff,
454 reg >> 8, len & 0xff, len >> 8);
456 for (byte = 0; byte < len; byte++)
457 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
458 cx231xx_isocdbg("\n");
461 ret = __usb_control_msg(dev, pipe, req,
462 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
463 val, reg, buf, len, HZ);
468 /****************************************************************
469 * USB Alternate Setting functions *
470 *****************************************************************/
472 int cx231xx_set_video_alternate(struct cx231xx *dev)
474 int errCode, prev_alt = dev->video_mode.alt;
475 unsigned int min_pkt_size = dev->width * 2 + 4;
476 u32 usb_interface_index = 0;
478 /* When image size is bigger than a certain value,
479 the frame size should be increased, otherwise, only
480 green screen will be received.
482 if (dev->width * 2 * dev->height > 720 * 240 * 2)
485 if (dev->width > 360) {
486 /* resolutions: 720,704,640 */
487 dev->video_mode.alt = 3;
488 } else if (dev->width > 180) {
489 /* resolutions: 360,352,320,240 */
490 dev->video_mode.alt = 2;
491 } else if (dev->width > 0) {
492 /* resolutions: 180,176,160,128,88 */
493 dev->video_mode.alt = 1;
495 /* Change to alt0 BULK to release USB bandwidth */
496 dev->video_mode.alt = 0;
499 if (dev->USE_ISO == 0)
500 dev->video_mode.alt = 0;
502 cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
504 /* Get the correct video interface Index */
505 usb_interface_index =
506 dev->current_pcb_config.hs_config_info[0].interface_info.
509 if (dev->video_mode.alt != prev_alt) {
510 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
511 min_pkt_size, dev->video_mode.alt);
513 if (dev->video_mode.alt_max_pkt_size != NULL)
514 dev->video_mode.max_pkt_size =
515 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
516 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
518 dev->video_mode.max_pkt_size);
520 usb_set_interface(dev->udev, usb_interface_index,
521 dev->video_mode.alt);
524 "cannot change alt number to %d (error=%i)\n",
525 dev->video_mode.alt, errCode);
532 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
535 u32 usb_interface_index = 0;
536 u32 max_pkt_size = 0;
540 usb_interface_index =
541 dev->current_pcb_config.hs_config_info[0].interface_info.
543 dev->ts1_mode.alt = alt;
544 if (dev->ts1_mode.alt_max_pkt_size != NULL)
545 max_pkt_size = dev->ts1_mode.max_pkt_size =
546 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
549 usb_interface_index =
550 dev->current_pcb_config.hs_config_info[0].interface_info.
554 usb_interface_index =
555 dev->current_pcb_config.hs_config_info[0].interface_info.
558 if (dev->adev.alt_max_pkt_size != NULL)
559 max_pkt_size = dev->adev.max_pkt_size =
560 dev->adev.alt_max_pkt_size[dev->adev.alt];
563 usb_interface_index =
564 dev->current_pcb_config.hs_config_info[0].interface_info.
566 dev->video_mode.alt = alt;
567 if (dev->video_mode.alt_max_pkt_size != NULL)
568 max_pkt_size = dev->video_mode.max_pkt_size =
569 dev->video_mode.alt_max_pkt_size[dev->video_mode.
573 if (dev->board.no_alt_vanc)
575 usb_interface_index =
576 dev->current_pcb_config.hs_config_info[0].interface_info.
578 dev->vbi_mode.alt = alt;
579 if (dev->vbi_mode.alt_max_pkt_size != NULL)
580 max_pkt_size = dev->vbi_mode.max_pkt_size =
581 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
584 usb_interface_index =
585 dev->current_pcb_config.hs_config_info[0].interface_info.
587 dev->sliced_cc_mode.alt = alt;
588 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
589 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
590 dev->sliced_cc_mode.alt_max_pkt_size[dev->
598 if (alt > 0 && max_pkt_size == 0) {
600 "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
601 usb_interface_index, alt);
602 /*To workaround error number=-71 on EP0 for videograbber,
603 need add following codes.*/
604 if (dev->board.no_alt_vanc)
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);
676 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
679 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
680 value[0], value[1], value[2], value[3]);
684 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
685 int is_fw_load(struct cx231xx *dev)
687 return cx231xx_check_fw(dev);
689 EXPORT_SYMBOL_GPL(is_fw_load);
691 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
695 if (dev->mode == set_mode)
698 if (set_mode == CX231XX_SUSPEND) {
699 /* Set the chip in power saving mode */
700 dev->mode = set_mode;
703 /* Resource is locked */
704 if (dev->mode != CX231XX_SUSPEND)
707 dev->mode = set_mode;
709 if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
710 /* set AGC mode to Digital */
711 switch (dev->model) {
712 case CX231XX_BOARD_CNXT_CARRAERA:
713 case CX231XX_BOARD_CNXT_RDE_250:
714 case CX231XX_BOARD_CNXT_SHELBY:
715 case CX231XX_BOARD_CNXT_RDU_250:
716 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
718 case CX231XX_BOARD_CNXT_RDE_253S:
719 case CX231XX_BOARD_CNXT_RDU_253S:
720 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
721 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
723 case CX231XX_BOARD_HAUPPAUGE_EXETER:
724 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
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_HAUPPAUGE_930C_HD_1113xx:
744 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
745 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
746 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
747 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
754 return errCode ? -EINVAL : 0;
756 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
758 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
761 int actlen, ret = -ENOMEM;
764 buffer = kzalloc(4096, GFP_KERNEL);
767 memcpy(&buffer[0], firmware, 4096);
769 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
770 buffer, 4096, &actlen, 2000);
774 "bulk message failed: %d (%d/%d)", ret,
777 errCode = actlen != size ? -1 : 0;
783 /*****************************************************************
784 * URB Streaming functions *
785 ******************************************************************/
788 * IRQ callback, called by URB callback
790 static void cx231xx_isoc_irq_callback(struct urb *urb)
792 struct cx231xx_dmaqueue *dma_q = urb->context;
793 struct cx231xx_video_mode *vmode =
794 container_of(dma_q, struct cx231xx_video_mode, vidq);
795 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
798 switch (urb->status) {
799 case 0: /* success */
800 case -ETIMEDOUT: /* NAK */
802 case -ECONNRESET: /* kill */
807 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
811 /* Copy data from URB */
812 spin_lock(&dev->video_mode.slock);
813 dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
814 spin_unlock(&dev->video_mode.slock);
816 /* Reset urb buffers */
817 for (i = 0; i < urb->number_of_packets; i++) {
818 urb->iso_frame_desc[i].status = 0;
819 urb->iso_frame_desc[i].actual_length = 0;
822 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
824 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
828 /*****************************************************************
829 * URB Streaming functions *
830 ******************************************************************/
833 * IRQ callback, called by URB callback
835 static void cx231xx_bulk_irq_callback(struct urb *urb)
837 struct cx231xx_dmaqueue *dma_q = urb->context;
838 struct cx231xx_video_mode *vmode =
839 container_of(dma_q, struct cx231xx_video_mode, vidq);
840 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 dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
858 spin_unlock(&dev->video_mode.slock);
860 /* Reset urb buffers */
861 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
863 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
868 * Stop and Deallocate URBs
870 void cx231xx_uninit_isoc(struct cx231xx *dev)
872 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
876 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
878 dev->video_mode.isoc_ctl.nfields = -1;
879 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
880 urb = dev->video_mode.isoc_ctl.urb[i];
882 if (!irqs_disabled())
887 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
888 usb_free_coherent(dev->udev,
889 urb->transfer_buffer_length,
890 dev->video_mode.isoc_ctl.
895 dev->video_mode.isoc_ctl.urb[i] = NULL;
897 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
900 kfree(dev->video_mode.isoc_ctl.urb);
901 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
902 kfree(dma_q->p_left_data);
904 dev->video_mode.isoc_ctl.urb = NULL;
905 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
906 dev->video_mode.isoc_ctl.num_bufs = 0;
907 dma_q->p_left_data = NULL;
909 if (dev->mode_tv == 0)
910 cx231xx_capture_start(dev, 0, Raw_Video);
912 cx231xx_capture_start(dev, 0, TS1_serial_mode);
916 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
919 * Stop and Deallocate URBs
921 void cx231xx_uninit_bulk(struct cx231xx *dev)
926 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
928 dev->video_mode.bulk_ctl.nfields = -1;
929 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
930 urb = dev->video_mode.bulk_ctl.urb[i];
932 if (!irqs_disabled())
937 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
938 usb_free_coherent(dev->udev,
939 urb->transfer_buffer_length,
940 dev->video_mode.isoc_ctl.
945 dev->video_mode.bulk_ctl.urb[i] = NULL;
947 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
950 kfree(dev->video_mode.bulk_ctl.urb);
951 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
953 dev->video_mode.bulk_ctl.urb = NULL;
954 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
955 dev->video_mode.bulk_ctl.num_bufs = 0;
957 if (dev->mode_tv == 0)
958 cx231xx_capture_start(dev, 0, Raw_Video);
960 cx231xx_capture_start(dev, 0, TS1_serial_mode);
964 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
967 * Allocate URBs and start IRQ
969 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
970 int num_bufs, int max_pkt_size,
971 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
973 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
980 /* De-allocates all pending stuff */
981 cx231xx_uninit_isoc(dev);
983 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
984 if (dma_q->p_left_data == NULL)
987 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
988 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
990 dma_q->is_partial_line = 0;
992 dma_q->current_field = -1;
993 dma_q->field1_done = 0;
994 dma_q->lines_per_field = dev->height / 2;
995 dma_q->bytes_left_in_line = dev->width << 1;
996 dma_q->lines_completed = 0;
997 dma_q->mpeg_buffer_done = 0;
998 dma_q->left_data_count = 0;
999 dma_q->mpeg_buffer_completed = 0;
1000 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1001 dma_q->ps_head[0] = 0x00;
1002 dma_q->ps_head[1] = 0x00;
1003 dma_q->ps_head[2] = 0x01;
1004 dma_q->ps_head[3] = 0xBA;
1005 for (i = 0; i < 8; i++)
1006 dma_q->partial_buf[i] = 0;
1008 dev->video_mode.isoc_ctl.urb =
1009 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1010 if (!dev->video_mode.isoc_ctl.urb) {
1012 "cannot alloc memory for usb buffers\n");
1016 dev->video_mode.isoc_ctl.transfer_buffer =
1017 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1018 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1020 "cannot allocate memory for usbtransfer\n");
1021 kfree(dev->video_mode.isoc_ctl.urb);
1025 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1026 dev->video_mode.isoc_ctl.buf = NULL;
1028 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1030 if (dev->mode_tv == 1)
1031 dev->video_mode.end_point_addr = 0x81;
1033 dev->video_mode.end_point_addr = 0x84;
1036 /* allocate urbs and transfer buffers */
1037 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1038 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1041 "cannot alloc isoc_ctl.urb %i\n", i);
1042 cx231xx_uninit_isoc(dev);
1045 dev->video_mode.isoc_ctl.urb[i] = urb;
1047 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1048 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1049 &urb->transfer_dma);
1050 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1052 "unable to allocate %i bytes for transfer buffer %i%s\n",
1054 in_interrupt() ? " while in int" : "");
1055 cx231xx_uninit_isoc(dev);
1058 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1061 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1063 usb_fill_int_urb(urb, dev->udev, pipe,
1064 dev->video_mode.isoc_ctl.transfer_buffer[i],
1065 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1067 urb->number_of_packets = max_packets;
1068 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1071 for (j = 0; j < max_packets; j++) {
1072 urb->iso_frame_desc[j].offset = k;
1073 urb->iso_frame_desc[j].length =
1074 dev->video_mode.isoc_ctl.max_pkt_size;
1075 k += dev->video_mode.isoc_ctl.max_pkt_size;
1079 init_waitqueue_head(&dma_q->wq);
1081 /* submit urbs and enables IRQ */
1082 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1083 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1087 "submit of urb %i failed (error=%i)\n", i,
1089 cx231xx_uninit_isoc(dev);
1094 if (dev->mode_tv == 0)
1095 cx231xx_capture_start(dev, 1, Raw_Video);
1097 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1101 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1104 * Allocate URBs and start IRQ
1106 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1107 int num_bufs, int max_pkt_size,
1108 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1110 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1116 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1118 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1120 video_mux(dev, dev->video_input);
1122 /* De-allocates all pending stuff */
1123 cx231xx_uninit_bulk(dev);
1125 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1126 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1128 dma_q->is_partial_line = 0;
1129 dma_q->last_sav = 0;
1130 dma_q->current_field = -1;
1131 dma_q->field1_done = 0;
1132 dma_q->lines_per_field = dev->height / 2;
1133 dma_q->bytes_left_in_line = dev->width << 1;
1134 dma_q->lines_completed = 0;
1135 dma_q->mpeg_buffer_done = 0;
1136 dma_q->left_data_count = 0;
1137 dma_q->mpeg_buffer_completed = 0;
1138 dma_q->ps_head[0] = 0x00;
1139 dma_q->ps_head[1] = 0x00;
1140 dma_q->ps_head[2] = 0x01;
1141 dma_q->ps_head[3] = 0xBA;
1142 for (i = 0; i < 8; i++)
1143 dma_q->partial_buf[i] = 0;
1145 dev->video_mode.bulk_ctl.urb =
1146 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1147 if (!dev->video_mode.bulk_ctl.urb) {
1149 "cannot alloc memory for usb buffers\n");
1153 dev->video_mode.bulk_ctl.transfer_buffer =
1154 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1155 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1157 "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);
1178 "cannot alloc bulk_ctl.urb %i\n", i);
1179 cx231xx_uninit_bulk(dev);
1182 dev->video_mode.bulk_ctl.urb[i] = urb;
1183 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1185 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1186 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1187 &urb->transfer_dma);
1188 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1190 "unable to allocate %i bytes for transfer buffer %i%s\n",
1192 in_interrupt() ? " while in int" : "");
1193 cx231xx_uninit_bulk(dev);
1196 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1198 pipe = usb_rcvbulkpipe(dev->udev,
1199 dev->video_mode.end_point_addr);
1200 usb_fill_bulk_urb(urb, dev->udev, pipe,
1201 dev->video_mode.bulk_ctl.transfer_buffer[i],
1202 sb_size, cx231xx_bulk_irq_callback, dma_q);
1205 init_waitqueue_head(&dma_q->wq);
1207 /* submit urbs and enables IRQ */
1208 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1209 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1213 "submit of urb %i failed (error=%i)\n", i, rc);
1214 cx231xx_uninit_bulk(dev);
1219 if (dev->mode_tv == 0)
1220 cx231xx_capture_start(dev, 1, Raw_Video);
1222 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1226 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1227 void cx231xx_stop_TS1(struct cx231xx *dev)
1229 u8 val[4] = { 0, 0, 0, 0 };
1235 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1236 TS_MODE_REG, val, 4);
1242 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)
1248 u8 val[4] = { 0, 0, 0, 0 };
1254 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1255 TS_MODE_REG, val, 4);
1261 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1262 TS1_CFG_REG, val, 4);
1264 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1265 /*****************************************************************
1266 * Device Init/UnInit functions *
1267 ******************************************************************/
1268 int cx231xx_dev_init(struct cx231xx *dev)
1272 /* Initialize I2C bus */
1274 /* External Master 1 Bus */
1275 dev->i2c_bus[0].nr = 0;
1276 dev->i2c_bus[0].dev = dev;
1277 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1278 dev->i2c_bus[0].i2c_nostop = 0;
1279 dev->i2c_bus[0].i2c_reserve = 0;
1281 /* External Master 2 Bus */
1282 dev->i2c_bus[1].nr = 1;
1283 dev->i2c_bus[1].dev = dev;
1284 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1285 dev->i2c_bus[1].i2c_nostop = 0;
1286 dev->i2c_bus[1].i2c_reserve = 0;
1288 /* Internal Master 3 Bus */
1289 dev->i2c_bus[2].nr = 2;
1290 dev->i2c_bus[2].dev = dev;
1291 dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */
1292 dev->i2c_bus[2].i2c_nostop = 0;
1293 dev->i2c_bus[2].i2c_reserve = 0;
1295 /* register I2C buses */
1296 cx231xx_i2c_register(&dev->i2c_bus[0]);
1297 cx231xx_i2c_register(&dev->i2c_bus[1]);
1298 cx231xx_i2c_register(&dev->i2c_bus[2]);
1300 cx231xx_i2c_mux_register(dev, 0);
1301 cx231xx_i2c_mux_register(dev, 1);
1303 /* scan the real bus segments in the order of physical port numbers */
1304 cx231xx_do_i2c_scan(dev, I2C_0);
1305 cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1306 cx231xx_do_i2c_scan(dev, I2C_2);
1307 cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1310 /* Note : with out calling set power mode function,
1311 afe can not be set up correctly */
1312 if (dev->board.external_av) {
1313 errCode = cx231xx_set_power_mode(dev,
1314 POLARIS_AVMODE_ENXTERNAL_AV);
1317 "%s: Failed to set Power - errCode [%d]!\n",
1322 errCode = cx231xx_set_power_mode(dev,
1323 POLARIS_AVMODE_ANALOGT_TV);
1326 "%s: Failed to set Power - errCode [%d]!\n",
1332 /* reset the Tuner, if it is a Xceive tuner */
1333 if ((dev->board.tuner_type == TUNER_XC5000) ||
1334 (dev->board.tuner_type == TUNER_XC2028))
1335 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1337 /* initialize Colibri block */
1338 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1341 "%s: cx231xx_afe init super block - errCode [%d]!\n",
1345 errCode = cx231xx_afe_init_channels(dev);
1348 "%s: cx231xx_afe init channels - errCode [%d]!\n",
1353 /* Set DIF in By pass mode */
1354 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1357 "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1362 /* I2S block related functions */
1363 errCode = cx231xx_i2s_blk_initialize(dev);
1366 "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1371 /* init control pins */
1372 errCode = cx231xx_init_ctrl_pin_status(dev);
1375 "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1380 /* set AGC mode to Analog */
1381 switch (dev->model) {
1382 case CX231XX_BOARD_CNXT_CARRAERA:
1383 case CX231XX_BOARD_CNXT_RDE_250:
1384 case CX231XX_BOARD_CNXT_SHELBY:
1385 case CX231XX_BOARD_CNXT_RDU_250:
1386 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1388 case CX231XX_BOARD_CNXT_RDE_253S:
1389 case CX231XX_BOARD_CNXT_RDU_253S:
1390 case CX231XX_BOARD_HAUPPAUGE_EXETER:
1391 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1392 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1393 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1394 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1395 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1402 "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1407 /* set all alternate settings to zero initially */
1408 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1409 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1410 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1411 if (dev->board.has_dvb)
1412 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1417 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1419 void cx231xx_dev_uninit(struct cx231xx *dev)
1421 /* Un Initialize I2C bus */
1422 cx231xx_i2c_mux_unregister(dev, 1);
1423 cx231xx_i2c_mux_unregister(dev, 0);
1424 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1425 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1426 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1428 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1430 /*****************************************************************
1431 * G P I O related functions *
1432 ******************************************************************/
1433 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1434 u8 len, u8 request, u8 direction)
1437 struct VENDOR_REQUEST_IN ven_req;
1440 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1445 ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */
1447 ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */
1450 ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */
1452 ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */
1455 /* set index value */
1456 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1458 /* set wLength value */
1459 ven_req.wLength = len;
1461 /* set bData value */
1464 /* set the buffer for read / write */
1465 ven_req.pBuff = gpio_val;
1467 /* set the direction */
1469 ven_req.direction = USB_DIR_IN;
1470 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1472 ven_req.direction = USB_DIR_OUT;
1475 /* call common vendor command request */
1476 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1478 dev_err(dev->dev, "%s: failed with status -%d\n",
1484 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1486 /*****************************************************************
1487 * C O N T R O L - Register R E A D / W R I T E functions *
1488 *****************************************************************/
1489 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1491 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1496 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1500 tmp = le32_to_cpu(*((__le32 *) value));
1503 value[0] = (u8) tmp;
1504 value[1] = (u8) (tmp >> 8);
1505 value[2] = (u8) (tmp >> 16);
1506 value[3] = (u8) (tmp >> 24);
1509 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1514 /*****************************************************************
1515 * I 2 C Internal C O N T R O L functions *
1516 *****************************************************************/
1517 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1518 u8 saddr_len, u32 *data, u8 data_len, int master)
1521 struct cx231xx_i2c_xfer_data req_data;
1526 else if (saddr_len == 1)
1529 /* prepare xfer_data struct */
1530 req_data.dev_addr = dev_addr >> 1;
1531 req_data.direction = I2C_M_RD;
1532 req_data.saddr_len = saddr_len;
1533 req_data.saddr_dat = saddr;
1534 req_data.buf_size = data_len;
1535 req_data.p_buffer = (u8 *) value;
1537 /* usb send command */
1539 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1541 else if (master == 1)
1542 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1544 else if (master == 2)
1545 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1549 /* Copy the data read back to main buffer */
1552 else if (data_len == 4)
1554 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1556 else if (data_len > 4)
1557 *data = value[saddr];
1563 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1564 u8 saddr_len, u32 data, u8 data_len, int master)
1567 u8 value[4] = { 0, 0, 0, 0 };
1568 struct cx231xx_i2c_xfer_data req_data;
1570 value[0] = (u8) data;
1571 value[1] = (u8) (data >> 8);
1572 value[2] = (u8) (data >> 16);
1573 value[3] = (u8) (data >> 24);
1577 else if (saddr_len == 1)
1580 /* prepare xfer_data struct */
1581 req_data.dev_addr = dev_addr >> 1;
1582 req_data.direction = 0;
1583 req_data.saddr_len = saddr_len;
1584 req_data.saddr_dat = saddr;
1585 req_data.buf_size = data_len;
1586 req_data.p_buffer = value;
1588 /* usb send command */
1590 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1592 else if (master == 1)
1593 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1595 else if (master == 2)
1596 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1602 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1603 u8 saddr_len, u32 *data, u8 data_len)
1606 struct cx231xx_i2c_xfer_data req_data;
1607 u8 value[4] = { 0, 0, 0, 0 };
1611 else if (saddr_len == 1)
1614 /* prepare xfer_data struct */
1615 req_data.dev_addr = dev_addr >> 1;
1616 req_data.direction = I2C_M_RD;
1617 req_data.saddr_len = saddr_len;
1618 req_data.saddr_dat = saddr;
1619 req_data.buf_size = data_len;
1620 req_data.p_buffer = (u8 *) value;
1622 /* usb send command */
1623 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1626 /* Copy the data read back to main buffer */
1631 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1638 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1639 u8 saddr_len, u32 data, u8 data_len)
1642 u8 value[4] = { 0, 0, 0, 0 };
1643 struct cx231xx_i2c_xfer_data req_data;
1645 value[0] = (u8) data;
1646 value[1] = (u8) (data >> 8);
1647 value[2] = (u8) (data >> 16);
1648 value[3] = (u8) (data >> 24);
1652 else if (saddr_len == 1)
1655 /* prepare xfer_data struct */
1656 req_data.dev_addr = dev_addr >> 1;
1657 req_data.direction = 0;
1658 req_data.saddr_len = saddr_len;
1659 req_data.saddr_dat = saddr;
1660 req_data.buf_size = data_len;
1661 req_data.p_buffer = value;
1663 /* usb send command */
1664 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1669 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1670 u16 register_address, u8 bit_start, u8 bit_end,
1678 if (bit_start > (size - 1) || bit_end > (size - 1))
1683 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1687 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1694 mask = 1 << bit_end;
1695 for (i = bit_end; i > bit_start && i > 0; i--)
1696 mask = mask + (1 << (i - 1));
1698 value <<= bit_start;
1705 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1711 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1718 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1719 u16 saddr, u32 mask, u32 value)
1724 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1732 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1737 u32 cx231xx_set_field(u32 field_mask, u32 data)
1741 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)