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);
755 dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
756 dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
763 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
765 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
772 buffer = kzalloc(4096, GFP_KERNEL);
775 memcpy(&buffer[0], firmware, 4096);
777 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
778 buffer, 4096, &actlen, 2000);
782 "bulk message failed: %d (%d/%d)", ret,
785 errCode = actlen != size ? -1 : 0;
791 /*****************************************************************
792 * URB Streaming functions *
793 ******************************************************************/
796 * IRQ callback, called by URB callback
798 static void cx231xx_isoc_irq_callback(struct urb *urb)
800 struct cx231xx_dmaqueue *dma_q = urb->context;
801 struct cx231xx_video_mode *vmode =
802 container_of(dma_q, struct cx231xx_video_mode, vidq);
803 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
806 switch (urb->status) {
807 case 0: /* success */
808 case -ETIMEDOUT: /* NAK */
810 case -ECONNRESET: /* kill */
815 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
819 /* Copy data from URB */
820 spin_lock(&dev->video_mode.slock);
821 dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
822 spin_unlock(&dev->video_mode.slock);
824 /* Reset urb buffers */
825 for (i = 0; i < urb->number_of_packets; i++) {
826 urb->iso_frame_desc[i].status = 0;
827 urb->iso_frame_desc[i].actual_length = 0;
830 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
832 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
836 /*****************************************************************
837 * URB Streaming functions *
838 ******************************************************************/
841 * IRQ callback, called by URB callback
843 static void cx231xx_bulk_irq_callback(struct urb *urb)
845 struct cx231xx_dmaqueue *dma_q = urb->context;
846 struct cx231xx_video_mode *vmode =
847 container_of(dma_q, struct cx231xx_video_mode, vidq);
848 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
850 switch (urb->status) {
851 case 0: /* success */
852 case -ETIMEDOUT: /* NAK */
854 case -ECONNRESET: /* kill */
858 case -EPIPE: /* stall */
859 cx231xx_isocdbg("urb completion error - device is stalled.\n");
862 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
866 /* Copy data from URB */
867 spin_lock(&dev->video_mode.slock);
868 dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
869 spin_unlock(&dev->video_mode.slock);
871 /* Reset urb buffers */
872 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
874 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
879 * Stop and Deallocate URBs
881 void cx231xx_uninit_isoc(struct cx231xx *dev)
883 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
886 bool broken_pipe = false;
888 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
890 dev->video_mode.isoc_ctl.nfields = -1;
891 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
892 urb = dev->video_mode.isoc_ctl.urb[i];
894 if (!irqs_disabled())
899 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
900 usb_free_coherent(dev->udev,
901 urb->transfer_buffer_length,
902 dev->video_mode.isoc_ctl.
906 if (urb->status == -EPIPE) {
910 dev->video_mode.isoc_ctl.urb[i] = NULL;
912 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
916 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
917 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
919 kfree(dev->video_mode.isoc_ctl.urb);
920 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
921 kfree(dma_q->p_left_data);
923 dev->video_mode.isoc_ctl.urb = NULL;
924 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
925 dev->video_mode.isoc_ctl.num_bufs = 0;
926 dma_q->p_left_data = NULL;
928 if (dev->mode_tv == 0)
929 cx231xx_capture_start(dev, 0, Raw_Video);
931 cx231xx_capture_start(dev, 0, TS1_serial_mode);
935 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
938 * Stop and Deallocate URBs
940 void cx231xx_uninit_bulk(struct cx231xx *dev)
942 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
945 bool broken_pipe = false;
947 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
949 dev->video_mode.bulk_ctl.nfields = -1;
950 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
951 urb = dev->video_mode.bulk_ctl.urb[i];
953 if (!irqs_disabled())
958 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
959 usb_free_coherent(dev->udev,
960 urb->transfer_buffer_length,
961 dev->video_mode.bulk_ctl.
965 if (urb->status == -EPIPE) {
969 dev->video_mode.bulk_ctl.urb[i] = NULL;
971 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
975 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
976 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
978 kfree(dev->video_mode.bulk_ctl.urb);
979 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
980 kfree(dma_q->p_left_data);
982 dev->video_mode.bulk_ctl.urb = NULL;
983 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
984 dev->video_mode.bulk_ctl.num_bufs = 0;
985 dma_q->p_left_data = NULL;
987 if (dev->mode_tv == 0)
988 cx231xx_capture_start(dev, 0, Raw_Video);
990 cx231xx_capture_start(dev, 0, TS1_serial_mode);
994 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
997 * Allocate URBs and start IRQ
999 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
1000 int num_bufs, int max_pkt_size,
1001 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
1003 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1010 /* De-allocates all pending stuff */
1011 cx231xx_uninit_isoc(dev);
1013 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1014 if (dma_q->p_left_data == NULL)
1017 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1018 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1020 dma_q->is_partial_line = 0;
1021 dma_q->last_sav = 0;
1022 dma_q->current_field = -1;
1023 dma_q->field1_done = 0;
1024 dma_q->lines_per_field = dev->height / 2;
1025 dma_q->bytes_left_in_line = dev->width << 1;
1026 dma_q->lines_completed = 0;
1027 dma_q->mpeg_buffer_done = 0;
1028 dma_q->left_data_count = 0;
1029 dma_q->mpeg_buffer_completed = 0;
1030 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1031 dma_q->ps_head[0] = 0x00;
1032 dma_q->ps_head[1] = 0x00;
1033 dma_q->ps_head[2] = 0x01;
1034 dma_q->ps_head[3] = 0xBA;
1035 for (i = 0; i < 8; i++)
1036 dma_q->partial_buf[i] = 0;
1038 dev->video_mode.isoc_ctl.urb =
1039 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1040 if (!dev->video_mode.isoc_ctl.urb) {
1042 "cannot alloc memory for usb buffers\n");
1046 dev->video_mode.isoc_ctl.transfer_buffer =
1047 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1048 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1050 "cannot allocate memory for usbtransfer\n");
1051 kfree(dev->video_mode.isoc_ctl.urb);
1055 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1056 dev->video_mode.isoc_ctl.buf = NULL;
1058 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1060 if (dev->mode_tv == 1)
1061 dev->video_mode.end_point_addr = 0x81;
1063 dev->video_mode.end_point_addr = 0x84;
1066 /* allocate urbs and transfer buffers */
1067 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1068 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1070 cx231xx_uninit_isoc(dev);
1073 dev->video_mode.isoc_ctl.urb[i] = urb;
1075 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1076 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1077 &urb->transfer_dma);
1078 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1080 "unable to allocate %i bytes for transfer buffer %i%s\n",
1082 in_interrupt() ? " while in int" : "");
1083 cx231xx_uninit_isoc(dev);
1086 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1089 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1091 usb_fill_int_urb(urb, dev->udev, pipe,
1092 dev->video_mode.isoc_ctl.transfer_buffer[i],
1093 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1095 urb->number_of_packets = max_packets;
1096 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1099 for (j = 0; j < max_packets; j++) {
1100 urb->iso_frame_desc[j].offset = k;
1101 urb->iso_frame_desc[j].length =
1102 dev->video_mode.isoc_ctl.max_pkt_size;
1103 k += dev->video_mode.isoc_ctl.max_pkt_size;
1107 init_waitqueue_head(&dma_q->wq);
1109 /* submit urbs and enables IRQ */
1110 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1111 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1115 "submit of urb %i failed (error=%i)\n", i,
1117 cx231xx_uninit_isoc(dev);
1122 if (dev->mode_tv == 0)
1123 cx231xx_capture_start(dev, 1, Raw_Video);
1125 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1129 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1132 * Allocate URBs and start IRQ
1134 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1135 int num_bufs, int max_pkt_size,
1136 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1138 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1144 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1146 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1148 video_mux(dev, dev->video_input);
1150 /* De-allocates all pending stuff */
1151 cx231xx_uninit_bulk(dev);
1153 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1154 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1156 dma_q->is_partial_line = 0;
1157 dma_q->last_sav = 0;
1158 dma_q->current_field = -1;
1159 dma_q->field1_done = 0;
1160 dma_q->lines_per_field = dev->height / 2;
1161 dma_q->bytes_left_in_line = dev->width << 1;
1162 dma_q->lines_completed = 0;
1163 dma_q->mpeg_buffer_done = 0;
1164 dma_q->left_data_count = 0;
1165 dma_q->mpeg_buffer_completed = 0;
1166 dma_q->ps_head[0] = 0x00;
1167 dma_q->ps_head[1] = 0x00;
1168 dma_q->ps_head[2] = 0x01;
1169 dma_q->ps_head[3] = 0xBA;
1170 for (i = 0; i < 8; i++)
1171 dma_q->partial_buf[i] = 0;
1173 dev->video_mode.bulk_ctl.urb =
1174 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1175 if (!dev->video_mode.bulk_ctl.urb) {
1177 "cannot alloc memory for usb buffers\n");
1181 dev->video_mode.bulk_ctl.transfer_buffer =
1182 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1183 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1185 "cannot allocate memory for usbtransfer\n");
1186 kfree(dev->video_mode.bulk_ctl.urb);
1190 dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1191 dev->video_mode.bulk_ctl.buf = NULL;
1193 sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1195 if (dev->mode_tv == 1)
1196 dev->video_mode.end_point_addr = 0x81;
1198 dev->video_mode.end_point_addr = 0x84;
1201 /* allocate urbs and transfer buffers */
1202 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1203 urb = usb_alloc_urb(0, GFP_KERNEL);
1205 cx231xx_uninit_bulk(dev);
1208 dev->video_mode.bulk_ctl.urb[i] = urb;
1209 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1211 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1212 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1213 &urb->transfer_dma);
1214 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1216 "unable to allocate %i bytes for transfer buffer %i%s\n",
1218 in_interrupt() ? " while in int" : "");
1219 cx231xx_uninit_bulk(dev);
1222 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1224 pipe = usb_rcvbulkpipe(dev->udev,
1225 dev->video_mode.end_point_addr);
1226 usb_fill_bulk_urb(urb, dev->udev, pipe,
1227 dev->video_mode.bulk_ctl.transfer_buffer[i],
1228 sb_size, cx231xx_bulk_irq_callback, dma_q);
1232 rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1235 "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1237 cx231xx_uninit_bulk(dev);
1241 init_waitqueue_head(&dma_q->wq);
1243 /* submit urbs and enables IRQ */
1244 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1245 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1249 "submit of urb %i failed (error=%i)\n", i, rc);
1250 cx231xx_uninit_bulk(dev);
1255 if (dev->mode_tv == 0)
1256 cx231xx_capture_start(dev, 1, Raw_Video);
1258 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1262 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1263 void cx231xx_stop_TS1(struct cx231xx *dev)
1265 u8 val[4] = { 0, 0, 0, 0 };
1271 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1272 TS_MODE_REG, val, 4);
1278 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1279 TS1_CFG_REG, val, 4);
1281 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1282 void cx231xx_start_TS1(struct cx231xx *dev)
1284 u8 val[4] = { 0, 0, 0, 0 };
1290 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1291 TS_MODE_REG, val, 4);
1297 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1298 TS1_CFG_REG, val, 4);
1300 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1301 /*****************************************************************
1302 * Device Init/UnInit functions *
1303 ******************************************************************/
1304 int cx231xx_dev_init(struct cx231xx *dev)
1308 /* Initialize I2C bus */
1310 /* External Master 1 Bus */
1311 dev->i2c_bus[0].nr = 0;
1312 dev->i2c_bus[0].dev = dev;
1313 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1314 dev->i2c_bus[0].i2c_nostop = 0;
1315 dev->i2c_bus[0].i2c_reserve = 0;
1317 /* External Master 2 Bus */
1318 dev->i2c_bus[1].nr = 1;
1319 dev->i2c_bus[1].dev = dev;
1320 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1321 dev->i2c_bus[1].i2c_nostop = 0;
1322 dev->i2c_bus[1].i2c_reserve = 0;
1324 /* Internal Master 3 Bus */
1325 dev->i2c_bus[2].nr = 2;
1326 dev->i2c_bus[2].dev = dev;
1327 dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */
1328 dev->i2c_bus[2].i2c_nostop = 0;
1329 dev->i2c_bus[2].i2c_reserve = 0;
1331 /* register I2C buses */
1332 errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1335 errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1338 errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1342 errCode = cx231xx_i2c_mux_create(dev);
1345 "%s: Failed to create I2C mux\n", __func__);
1348 errCode = cx231xx_i2c_mux_register(dev, 0);
1352 errCode = cx231xx_i2c_mux_register(dev, 1);
1356 /* scan the real bus segments in the order of physical port numbers */
1357 cx231xx_do_i2c_scan(dev, I2C_0);
1358 cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1359 cx231xx_do_i2c_scan(dev, I2C_2);
1360 cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1363 /* Note : with out calling set power mode function,
1364 afe can not be set up correctly */
1365 if (dev->board.external_av) {
1366 errCode = cx231xx_set_power_mode(dev,
1367 POLARIS_AVMODE_ENXTERNAL_AV);
1370 "%s: Failed to set Power - errCode [%d]!\n",
1375 errCode = cx231xx_set_power_mode(dev,
1376 POLARIS_AVMODE_ANALOGT_TV);
1379 "%s: Failed to set Power - errCode [%d]!\n",
1385 /* reset the Tuner, if it is a Xceive tuner */
1386 if ((dev->board.tuner_type == TUNER_XC5000) ||
1387 (dev->board.tuner_type == TUNER_XC2028))
1388 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1390 /* initialize Colibri block */
1391 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1394 "%s: cx231xx_afe init super block - errCode [%d]!\n",
1398 errCode = cx231xx_afe_init_channels(dev);
1401 "%s: cx231xx_afe init channels - errCode [%d]!\n",
1406 /* Set DIF in By pass mode */
1407 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1410 "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1415 /* I2S block related functions */
1416 errCode = cx231xx_i2s_blk_initialize(dev);
1419 "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1424 /* init control pins */
1425 errCode = cx231xx_init_ctrl_pin_status(dev);
1428 "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1433 /* set AGC mode to Analog */
1434 switch (dev->model) {
1435 case CX231XX_BOARD_CNXT_CARRAERA:
1436 case CX231XX_BOARD_CNXT_RDE_250:
1437 case CX231XX_BOARD_CNXT_SHELBY:
1438 case CX231XX_BOARD_CNXT_RDU_250:
1439 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1441 case CX231XX_BOARD_CNXT_RDE_253S:
1442 case CX231XX_BOARD_CNXT_RDU_253S:
1443 case CX231XX_BOARD_HAUPPAUGE_EXETER:
1444 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1445 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1446 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1447 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1448 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1455 "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1460 /* set all alternate settings to zero initially */
1461 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1462 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1463 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1464 if (dev->board.has_dvb)
1465 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1470 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1472 void cx231xx_dev_uninit(struct cx231xx *dev)
1474 /* Un Initialize I2C bus */
1475 cx231xx_i2c_mux_unregister(dev);
1476 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1477 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1478 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1480 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1482 /*****************************************************************
1483 * G P I O related functions *
1484 ******************************************************************/
1485 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1486 u8 len, u8 request, u8 direction)
1489 struct VENDOR_REQUEST_IN ven_req;
1492 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1497 ven_req.bRequest = VRT_GET_GPIO; /* 0x9 gpio */
1499 ven_req.bRequest = VRT_SET_GPIO; /* 0x8 gpio */
1502 ven_req.bRequest = VRT_GET_GPIE; /* 0xb gpie */
1504 ven_req.bRequest = VRT_SET_GPIE; /* 0xa gpie */
1507 /* set index value */
1508 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1510 /* set wLength value */
1511 ven_req.wLength = len;
1513 /* set bData value */
1516 /* set the buffer for read / write */
1517 ven_req.pBuff = gpio_val;
1519 /* set the direction */
1521 ven_req.direction = USB_DIR_IN;
1522 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1524 ven_req.direction = USB_DIR_OUT;
1527 /* call common vendor command request */
1528 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1530 dev_err(dev->dev, "%s: failed with status -%d\n",
1536 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1538 /*****************************************************************
1539 * C O N T R O L - Register R E A D / W R I T E functions *
1540 *****************************************************************/
1541 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1543 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1548 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1552 tmp = le32_to_cpu(*((__le32 *) value));
1555 value[0] = (u8) tmp;
1556 value[1] = (u8) (tmp >> 8);
1557 value[2] = (u8) (tmp >> 16);
1558 value[3] = (u8) (tmp >> 24);
1561 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1566 /*****************************************************************
1567 * I 2 C Internal C O N T R O L functions *
1568 *****************************************************************/
1569 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1570 u8 saddr_len, u32 *data, u8 data_len, int master)
1573 struct cx231xx_i2c_xfer_data req_data;
1578 else if (saddr_len == 1)
1581 /* prepare xfer_data struct */
1582 req_data.dev_addr = dev_addr >> 1;
1583 req_data.direction = I2C_M_RD;
1584 req_data.saddr_len = saddr_len;
1585 req_data.saddr_dat = saddr;
1586 req_data.buf_size = data_len;
1587 req_data.p_buffer = (u8 *) value;
1589 /* usb send command */
1591 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1593 else if (master == 1)
1594 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1596 else if (master == 2)
1597 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1601 /* Copy the data read back to main buffer */
1604 else if (data_len == 4)
1606 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1608 else if (data_len > 4)
1609 *data = value[saddr];
1615 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1616 u8 saddr_len, u32 data, u8 data_len, int master)
1619 u8 value[4] = { 0, 0, 0, 0 };
1620 struct cx231xx_i2c_xfer_data req_data;
1622 value[0] = (u8) data;
1623 value[1] = (u8) (data >> 8);
1624 value[2] = (u8) (data >> 16);
1625 value[3] = (u8) (data >> 24);
1629 else if (saddr_len == 1)
1632 /* prepare xfer_data struct */
1633 req_data.dev_addr = dev_addr >> 1;
1634 req_data.direction = 0;
1635 req_data.saddr_len = saddr_len;
1636 req_data.saddr_dat = saddr;
1637 req_data.buf_size = data_len;
1638 req_data.p_buffer = value;
1640 /* usb send command */
1642 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1644 else if (master == 1)
1645 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1647 else if (master == 2)
1648 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1654 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1655 u8 saddr_len, u32 *data, u8 data_len)
1658 struct cx231xx_i2c_xfer_data req_data;
1659 u8 value[4] = { 0, 0, 0, 0 };
1663 else if (saddr_len == 1)
1666 /* prepare xfer_data struct */
1667 req_data.dev_addr = dev_addr >> 1;
1668 req_data.direction = I2C_M_RD;
1669 req_data.saddr_len = saddr_len;
1670 req_data.saddr_dat = saddr;
1671 req_data.buf_size = data_len;
1672 req_data.p_buffer = (u8 *) value;
1674 /* usb send command */
1675 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1678 /* Copy the data read back to main buffer */
1683 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1690 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1691 u8 saddr_len, u32 data, u8 data_len)
1694 u8 value[4] = { 0, 0, 0, 0 };
1695 struct cx231xx_i2c_xfer_data req_data;
1697 value[0] = (u8) data;
1698 value[1] = (u8) (data >> 8);
1699 value[2] = (u8) (data >> 16);
1700 value[3] = (u8) (data >> 24);
1704 else if (saddr_len == 1)
1707 /* prepare xfer_data struct */
1708 req_data.dev_addr = dev_addr >> 1;
1709 req_data.direction = 0;
1710 req_data.saddr_len = saddr_len;
1711 req_data.saddr_dat = saddr;
1712 req_data.buf_size = data_len;
1713 req_data.p_buffer = value;
1715 /* usb send command */
1716 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1721 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1722 u16 register_address, u8 bit_start, u8 bit_end,
1730 if (bit_start > (size - 1) || bit_end > (size - 1))
1735 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1739 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1746 mask = 1 << bit_end;
1747 for (i = bit_end; i > bit_start && i > 0; i--)
1748 mask = mask + (1 << (i - 1));
1750 value <<= bit_start;
1757 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1763 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1770 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1771 u16 saddr, u32 mask, u32 value)
1776 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1784 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1789 u32 cx231xx_set_field(u32 field_mask, u32 data)
1793 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)