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 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
717 case CX231XX_BOARD_HAUPPAUGE_EXETER:
718 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
719 errCode = cx231xx_set_power_mode(dev,
720 POLARIS_AVMODE_DIGITAL);
725 } else/* Set Analog Power mode */ {
726 /* set AGC mode to Analog */
727 switch (dev->model) {
728 case CX231XX_BOARD_CNXT_CARRAERA:
729 case CX231XX_BOARD_CNXT_RDE_250:
730 case CX231XX_BOARD_CNXT_SHELBY:
731 case CX231XX_BOARD_CNXT_RDU_250:
732 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
734 case CX231XX_BOARD_CNXT_RDE_253S:
735 case CX231XX_BOARD_CNXT_RDU_253S:
736 case CX231XX_BOARD_HAUPPAUGE_EXETER:
737 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
738 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
739 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
740 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
741 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
748 return errCode ? -EINVAL : 0;
750 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
752 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
759 buffer = kzalloc(4096, GFP_KERNEL);
762 memcpy(&buffer[0], firmware, 4096);
764 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
765 buffer, 4096, &actlen, 2000);
769 "bulk message failed: %d (%d/%d)", ret,
772 errCode = actlen != size ? -1 : 0;
778 /*****************************************************************
779 * URB Streaming functions *
780 ******************************************************************/
783 * IRQ callback, called by URB callback
785 static void cx231xx_isoc_irq_callback(struct urb *urb)
787 struct cx231xx_dmaqueue *dma_q = urb->context;
788 struct cx231xx_video_mode *vmode =
789 container_of(dma_q, struct cx231xx_video_mode, vidq);
790 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
793 switch (urb->status) {
794 case 0: /* success */
795 case -ETIMEDOUT: /* NAK */
797 case -ECONNRESET: /* kill */
802 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
806 /* Copy data from URB */
807 spin_lock(&dev->video_mode.slock);
808 dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
809 spin_unlock(&dev->video_mode.slock);
811 /* Reset urb buffers */
812 for (i = 0; i < urb->number_of_packets; i++) {
813 urb->iso_frame_desc[i].status = 0;
814 urb->iso_frame_desc[i].actual_length = 0;
817 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
819 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
823 /*****************************************************************
824 * URB Streaming functions *
825 ******************************************************************/
828 * IRQ callback, called by URB callback
830 static void cx231xx_bulk_irq_callback(struct urb *urb)
832 struct cx231xx_dmaqueue *dma_q = urb->context;
833 struct cx231xx_video_mode *vmode =
834 container_of(dma_q, struct cx231xx_video_mode, vidq);
835 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
837 switch (urb->status) {
838 case 0: /* success */
839 case -ETIMEDOUT: /* NAK */
841 case -ECONNRESET: /* kill */
846 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
850 /* Copy data from URB */
851 spin_lock(&dev->video_mode.slock);
852 dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
853 spin_unlock(&dev->video_mode.slock);
855 /* Reset urb buffers */
856 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
858 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
863 * Stop and Deallocate URBs
865 void cx231xx_uninit_isoc(struct cx231xx *dev)
867 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
871 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
873 dev->video_mode.isoc_ctl.nfields = -1;
874 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
875 urb = dev->video_mode.isoc_ctl.urb[i];
877 if (!irqs_disabled())
882 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
883 usb_free_coherent(dev->udev,
884 urb->transfer_buffer_length,
885 dev->video_mode.isoc_ctl.
890 dev->video_mode.isoc_ctl.urb[i] = NULL;
892 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
895 kfree(dev->video_mode.isoc_ctl.urb);
896 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
897 kfree(dma_q->p_left_data);
899 dev->video_mode.isoc_ctl.urb = NULL;
900 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
901 dev->video_mode.isoc_ctl.num_bufs = 0;
902 dma_q->p_left_data = NULL;
904 if (dev->mode_tv == 0)
905 cx231xx_capture_start(dev, 0, Raw_Video);
907 cx231xx_capture_start(dev, 0, TS1_serial_mode);
911 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
914 * Stop and Deallocate URBs
916 void cx231xx_uninit_bulk(struct cx231xx *dev)
918 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
922 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
924 dev->video_mode.bulk_ctl.nfields = -1;
925 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
926 urb = dev->video_mode.bulk_ctl.urb[i];
928 if (!irqs_disabled())
933 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
934 usb_free_coherent(dev->udev,
935 urb->transfer_buffer_length,
936 dev->video_mode.bulk_ctl.
941 dev->video_mode.bulk_ctl.urb[i] = NULL;
943 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
946 kfree(dev->video_mode.bulk_ctl.urb);
947 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
948 kfree(dma_q->p_left_data);
950 dev->video_mode.bulk_ctl.urb = NULL;
951 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
952 dev->video_mode.bulk_ctl.num_bufs = 0;
953 dma_q->p_left_data = NULL;
955 if (dev->mode_tv == 0)
956 cx231xx_capture_start(dev, 0, Raw_Video);
958 cx231xx_capture_start(dev, 0, TS1_serial_mode);
962 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
965 * Allocate URBs and start IRQ
967 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
968 int num_bufs, int max_pkt_size,
969 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
971 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
978 /* De-allocates all pending stuff */
979 cx231xx_uninit_isoc(dev);
981 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
982 if (dma_q->p_left_data == NULL)
985 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
986 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
988 dma_q->is_partial_line = 0;
990 dma_q->current_field = -1;
991 dma_q->field1_done = 0;
992 dma_q->lines_per_field = dev->height / 2;
993 dma_q->bytes_left_in_line = dev->width << 1;
994 dma_q->lines_completed = 0;
995 dma_q->mpeg_buffer_done = 0;
996 dma_q->left_data_count = 0;
997 dma_q->mpeg_buffer_completed = 0;
998 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
999 dma_q->ps_head[0] = 0x00;
1000 dma_q->ps_head[1] = 0x00;
1001 dma_q->ps_head[2] = 0x01;
1002 dma_q->ps_head[3] = 0xBA;
1003 for (i = 0; i < 8; i++)
1004 dma_q->partial_buf[i] = 0;
1006 dev->video_mode.isoc_ctl.urb =
1007 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1008 if (!dev->video_mode.isoc_ctl.urb) {
1010 "cannot alloc memory for usb buffers\n");
1014 dev->video_mode.isoc_ctl.transfer_buffer =
1015 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1016 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1018 "cannot allocate memory for usbtransfer\n");
1019 kfree(dev->video_mode.isoc_ctl.urb);
1023 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1024 dev->video_mode.isoc_ctl.buf = NULL;
1026 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1028 if (dev->mode_tv == 1)
1029 dev->video_mode.end_point_addr = 0x81;
1031 dev->video_mode.end_point_addr = 0x84;
1034 /* allocate urbs and transfer buffers */
1035 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1036 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1039 "cannot alloc isoc_ctl.urb %i\n", i);
1040 cx231xx_uninit_isoc(dev);
1043 dev->video_mode.isoc_ctl.urb[i] = urb;
1045 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1046 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1047 &urb->transfer_dma);
1048 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1050 "unable to allocate %i bytes for transfer buffer %i%s\n",
1052 in_interrupt() ? " while in int" : "");
1053 cx231xx_uninit_isoc(dev);
1056 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1059 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1061 usb_fill_int_urb(urb, dev->udev, pipe,
1062 dev->video_mode.isoc_ctl.transfer_buffer[i],
1063 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1065 urb->number_of_packets = max_packets;
1066 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1069 for (j = 0; j < max_packets; j++) {
1070 urb->iso_frame_desc[j].offset = k;
1071 urb->iso_frame_desc[j].length =
1072 dev->video_mode.isoc_ctl.max_pkt_size;
1073 k += dev->video_mode.isoc_ctl.max_pkt_size;
1077 init_waitqueue_head(&dma_q->wq);
1079 /* submit urbs and enables IRQ */
1080 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1081 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1085 "submit of urb %i failed (error=%i)\n", i,
1087 cx231xx_uninit_isoc(dev);
1092 if (dev->mode_tv == 0)
1093 cx231xx_capture_start(dev, 1, Raw_Video);
1095 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1099 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1102 * Allocate URBs and start IRQ
1104 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1105 int num_bufs, int max_pkt_size,
1106 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1108 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1114 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1116 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1118 video_mux(dev, dev->video_input);
1120 /* De-allocates all pending stuff */
1121 cx231xx_uninit_bulk(dev);
1123 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1124 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1126 dma_q->is_partial_line = 0;
1127 dma_q->last_sav = 0;
1128 dma_q->current_field = -1;
1129 dma_q->field1_done = 0;
1130 dma_q->lines_per_field = dev->height / 2;
1131 dma_q->bytes_left_in_line = dev->width << 1;
1132 dma_q->lines_completed = 0;
1133 dma_q->mpeg_buffer_done = 0;
1134 dma_q->left_data_count = 0;
1135 dma_q->mpeg_buffer_completed = 0;
1136 dma_q->ps_head[0] = 0x00;
1137 dma_q->ps_head[1] = 0x00;
1138 dma_q->ps_head[2] = 0x01;
1139 dma_q->ps_head[3] = 0xBA;
1140 for (i = 0; i < 8; i++)
1141 dma_q->partial_buf[i] = 0;
1143 dev->video_mode.bulk_ctl.urb =
1144 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1145 if (!dev->video_mode.bulk_ctl.urb) {
1147 "cannot alloc memory for usb buffers\n");
1151 dev->video_mode.bulk_ctl.transfer_buffer =
1152 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1153 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1155 "cannot allocate memory for usbtransfer\n");
1156 kfree(dev->video_mode.bulk_ctl.urb);
1160 dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1161 dev->video_mode.bulk_ctl.buf = NULL;
1163 sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1165 if (dev->mode_tv == 1)
1166 dev->video_mode.end_point_addr = 0x81;
1168 dev->video_mode.end_point_addr = 0x84;
1171 /* allocate urbs and transfer buffers */
1172 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1173 urb = usb_alloc_urb(0, GFP_KERNEL);
1176 "cannot alloc bulk_ctl.urb %i\n", i);
1177 cx231xx_uninit_bulk(dev);
1180 dev->video_mode.bulk_ctl.urb[i] = urb;
1181 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1183 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1184 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1185 &urb->transfer_dma);
1186 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1188 "unable to allocate %i bytes for transfer buffer %i%s\n",
1190 in_interrupt() ? " while in int" : "");
1191 cx231xx_uninit_bulk(dev);
1194 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1196 pipe = usb_rcvbulkpipe(dev->udev,
1197 dev->video_mode.end_point_addr);
1198 usb_fill_bulk_urb(urb, dev->udev, pipe,
1199 dev->video_mode.bulk_ctl.transfer_buffer[i],
1200 sb_size, cx231xx_bulk_irq_callback, dma_q);
1204 rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1207 "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1209 cx231xx_uninit_bulk(dev);
1213 init_waitqueue_head(&dma_q->wq);
1215 /* submit urbs and enables IRQ */
1216 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1217 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1221 "submit of urb %i failed (error=%i)\n", i, rc);
1222 cx231xx_uninit_bulk(dev);
1227 if (dev->mode_tv == 0)
1228 cx231xx_capture_start(dev, 1, Raw_Video);
1230 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1234 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1235 void cx231xx_stop_TS1(struct cx231xx *dev)
1237 u8 val[4] = { 0, 0, 0, 0 };
1243 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1244 TS_MODE_REG, val, 4);
1250 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1251 TS1_CFG_REG, val, 4);
1253 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1254 void cx231xx_start_TS1(struct cx231xx *dev)
1256 u8 val[4] = { 0, 0, 0, 0 };
1262 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1263 TS_MODE_REG, val, 4);
1269 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1270 TS1_CFG_REG, val, 4);
1272 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1273 /*****************************************************************
1274 * Device Init/UnInit functions *
1275 ******************************************************************/
1276 int cx231xx_dev_init(struct cx231xx *dev)
1280 /* Initialize I2C bus */
1282 /* External Master 1 Bus */
1283 dev->i2c_bus[0].nr = 0;
1284 dev->i2c_bus[0].dev = dev;
1285 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1286 dev->i2c_bus[0].i2c_nostop = 0;
1287 dev->i2c_bus[0].i2c_reserve = 0;
1289 /* External Master 2 Bus */
1290 dev->i2c_bus[1].nr = 1;
1291 dev->i2c_bus[1].dev = dev;
1292 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1293 dev->i2c_bus[1].i2c_nostop = 0;
1294 dev->i2c_bus[1].i2c_reserve = 0;
1296 /* Internal Master 3 Bus */
1297 dev->i2c_bus[2].nr = 2;
1298 dev->i2c_bus[2].dev = dev;
1299 dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */
1300 dev->i2c_bus[2].i2c_nostop = 0;
1301 dev->i2c_bus[2].i2c_reserve = 0;
1303 /* register I2C buses */
1304 cx231xx_i2c_register(&dev->i2c_bus[0]);
1305 cx231xx_i2c_register(&dev->i2c_bus[1]);
1306 cx231xx_i2c_register(&dev->i2c_bus[2]);
1308 errCode = cx231xx_i2c_mux_create(dev);
1311 cx231xx_i2c_mux_register(dev, 0);
1312 cx231xx_i2c_mux_register(dev, 1);
1314 /* scan the real bus segments in the order of physical port numbers */
1315 cx231xx_do_i2c_scan(dev, I2C_0);
1316 cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1317 cx231xx_do_i2c_scan(dev, I2C_2);
1318 cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1321 /* Note : with out calling set power mode function,
1322 afe can not be set up correctly */
1323 if (dev->board.external_av) {
1324 errCode = cx231xx_set_power_mode(dev,
1325 POLARIS_AVMODE_ENXTERNAL_AV);
1328 "%s: Failed to set Power - errCode [%d]!\n",
1333 errCode = cx231xx_set_power_mode(dev,
1334 POLARIS_AVMODE_ANALOGT_TV);
1337 "%s: Failed to set Power - errCode [%d]!\n",
1343 /* reset the Tuner, if it is a Xceive tuner */
1344 if ((dev->board.tuner_type == TUNER_XC5000) ||
1345 (dev->board.tuner_type == TUNER_XC2028))
1346 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1348 /* initialize Colibri block */
1349 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1352 "%s: cx231xx_afe init super block - errCode [%d]!\n",
1356 errCode = cx231xx_afe_init_channels(dev);
1359 "%s: cx231xx_afe init channels - errCode [%d]!\n",
1364 /* Set DIF in By pass mode */
1365 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1368 "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1373 /* I2S block related functions */
1374 errCode = cx231xx_i2s_blk_initialize(dev);
1377 "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1382 /* init control pins */
1383 errCode = cx231xx_init_ctrl_pin_status(dev);
1386 "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1391 /* set AGC mode to Analog */
1392 switch (dev->model) {
1393 case CX231XX_BOARD_CNXT_CARRAERA:
1394 case CX231XX_BOARD_CNXT_RDE_250:
1395 case CX231XX_BOARD_CNXT_SHELBY:
1396 case CX231XX_BOARD_CNXT_RDU_250:
1397 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1399 case CX231XX_BOARD_CNXT_RDE_253S:
1400 case CX231XX_BOARD_CNXT_RDU_253S:
1401 case CX231XX_BOARD_HAUPPAUGE_EXETER:
1402 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1403 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1404 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1405 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1406 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1413 "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1418 /* set all alternate settings to zero initially */
1419 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1420 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1421 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1422 if (dev->board.has_dvb)
1423 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1428 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1430 void cx231xx_dev_uninit(struct cx231xx *dev)
1432 /* Un Initialize I2C bus */
1433 cx231xx_i2c_mux_unregister(dev);
1434 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1435 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1436 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1438 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1440 /*****************************************************************
1441 * G P I O related functions *
1442 ******************************************************************/
1443 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1444 u8 len, u8 request, u8 direction)
1447 struct VENDOR_REQUEST_IN ven_req;
1450 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1455 ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */
1457 ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */
1460 ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */
1462 ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */
1465 /* set index value */
1466 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1468 /* set wLength value */
1469 ven_req.wLength = len;
1471 /* set bData value */
1474 /* set the buffer for read / write */
1475 ven_req.pBuff = gpio_val;
1477 /* set the direction */
1479 ven_req.direction = USB_DIR_IN;
1480 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1482 ven_req.direction = USB_DIR_OUT;
1485 /* call common vendor command request */
1486 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1488 dev_err(dev->dev, "%s: failed with status -%d\n",
1494 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1496 /*****************************************************************
1497 * C O N T R O L - Register R E A D / W R I T E functions *
1498 *****************************************************************/
1499 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1501 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1506 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1510 tmp = le32_to_cpu(*((__le32 *) value));
1513 value[0] = (u8) tmp;
1514 value[1] = (u8) (tmp >> 8);
1515 value[2] = (u8) (tmp >> 16);
1516 value[3] = (u8) (tmp >> 24);
1519 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1524 /*****************************************************************
1525 * I 2 C Internal C O N T R O L functions *
1526 *****************************************************************/
1527 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1528 u8 saddr_len, u32 *data, u8 data_len, int master)
1531 struct cx231xx_i2c_xfer_data req_data;
1536 else if (saddr_len == 1)
1539 /* prepare xfer_data struct */
1540 req_data.dev_addr = dev_addr >> 1;
1541 req_data.direction = I2C_M_RD;
1542 req_data.saddr_len = saddr_len;
1543 req_data.saddr_dat = saddr;
1544 req_data.buf_size = data_len;
1545 req_data.p_buffer = (u8 *) value;
1547 /* usb send command */
1549 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1551 else if (master == 1)
1552 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1554 else if (master == 2)
1555 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1559 /* Copy the data read back to main buffer */
1562 else if (data_len == 4)
1564 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1566 else if (data_len > 4)
1567 *data = value[saddr];
1573 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1574 u8 saddr_len, u32 data, u8 data_len, int master)
1577 u8 value[4] = { 0, 0, 0, 0 };
1578 struct cx231xx_i2c_xfer_data req_data;
1580 value[0] = (u8) data;
1581 value[1] = (u8) (data >> 8);
1582 value[2] = (u8) (data >> 16);
1583 value[3] = (u8) (data >> 24);
1587 else if (saddr_len == 1)
1590 /* prepare xfer_data struct */
1591 req_data.dev_addr = dev_addr >> 1;
1592 req_data.direction = 0;
1593 req_data.saddr_len = saddr_len;
1594 req_data.saddr_dat = saddr;
1595 req_data.buf_size = data_len;
1596 req_data.p_buffer = value;
1598 /* usb send command */
1600 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1602 else if (master == 1)
1603 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1605 else if (master == 2)
1606 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1612 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1613 u8 saddr_len, u32 *data, u8 data_len)
1616 struct cx231xx_i2c_xfer_data req_data;
1617 u8 value[4] = { 0, 0, 0, 0 };
1621 else if (saddr_len == 1)
1624 /* prepare xfer_data struct */
1625 req_data.dev_addr = dev_addr >> 1;
1626 req_data.direction = I2C_M_RD;
1627 req_data.saddr_len = saddr_len;
1628 req_data.saddr_dat = saddr;
1629 req_data.buf_size = data_len;
1630 req_data.p_buffer = (u8 *) value;
1632 /* usb send command */
1633 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1636 /* Copy the data read back to main buffer */
1641 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1648 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1649 u8 saddr_len, u32 data, u8 data_len)
1652 u8 value[4] = { 0, 0, 0, 0 };
1653 struct cx231xx_i2c_xfer_data req_data;
1655 value[0] = (u8) data;
1656 value[1] = (u8) (data >> 8);
1657 value[2] = (u8) (data >> 16);
1658 value[3] = (u8) (data >> 24);
1662 else if (saddr_len == 1)
1665 /* prepare xfer_data struct */
1666 req_data.dev_addr = dev_addr >> 1;
1667 req_data.direction = 0;
1668 req_data.saddr_len = saddr_len;
1669 req_data.saddr_dat = saddr;
1670 req_data.buf_size = data_len;
1671 req_data.p_buffer = value;
1673 /* usb send command */
1674 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1679 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1680 u16 register_address, u8 bit_start, u8 bit_end,
1688 if (bit_start > (size - 1) || bit_end > (size - 1))
1693 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1697 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1704 mask = 1 << bit_end;
1705 for (i = bit_end; i > bit_start && i > 0; i--)
1706 mask = mask + (1 << (i - 1));
1708 value <<= bit_start;
1715 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1721 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1728 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1729 u16 saddr, u32 mask, u32 value)
1734 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1742 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1747 u32 cx231xx_set_field(u32 field_mask, u32 data)
1751 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)