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): %s: %02x %02x %02x %02x %02x %02x %02x %02x ",
247 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
250 value & 0xff, value >> 8,
251 index & 0xff, index >> 8,
252 size & 0xff, size >> 8);
253 if (!(requesttype & USB_DIR_IN)) {
254 printk(KERN_CONT ">>>");
255 for (i = 0; i < size; i++)
256 printk(KERN_CONT " %02x",
257 ((unsigned char *)data)[i]);
261 /* Do the real call to usb_control_msg */
262 mutex_lock(&dev->ctrl_urb_lock);
263 if (!(requesttype & USB_DIR_IN) && size)
264 memcpy(dev->urb_buf, data, size);
265 rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
266 index, dev->urb_buf, size, timeout);
267 if ((requesttype & USB_DIR_IN) && size)
268 memcpy(data, dev->urb_buf, size);
269 mutex_unlock(&dev->ctrl_urb_lock);
272 if (unlikely(rc < 0)) {
273 printk(KERN_CONT "FAILED!\n");
277 if ((requesttype & USB_DIR_IN)) {
278 printk(KERN_CONT "<<<");
279 for (i = 0; i < size; i++)
280 printk(KERN_CONT " %02x",
281 ((unsigned char *)data)[i]);
283 printk(KERN_CONT "\n");
291 * cx231xx_read_ctrl_reg()
292 * reads data from the usb device specifying bRequest and wValue
294 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
299 int pipe = usb_rcvctrlpipe(dev->udev, 0);
301 if (dev->state & DEV_DISCONNECTED)
304 if (len > URB_MAX_CTRL_SIZE)
309 val = ENABLE_ONE_BYTE;
312 val = ENABLE_TWE_BYTE;
315 val = ENABLE_THREE_BYTE;
318 val = ENABLE_FOUR_BYTE;
321 val = 0xFF; /* invalid option */
327 ret = __usb_control_msg(dev, pipe, req,
328 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
329 val, reg, buf, len, HZ);
333 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
334 struct VENDOR_REQUEST_IN *ven_req)
341 if (dev->state & DEV_DISCONNECTED)
344 if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
347 if (ven_req->direction)
348 pipe = usb_rcvctrlpipe(dev->udev, 0);
350 pipe = usb_sndctrlpipe(dev->udev, 0);
353 * If the cx23102 read more than 4 bytes with i2c bus,
354 * need chop to 4 byte per request
356 if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
357 (ven_req->bRequest == 0x5) ||
358 (ven_req->bRequest == 0x6) ||
360 /* Internal Master 3 Bus can send
361 * and receive only 4 bytes per time
363 (ven_req->bRequest == 0x2))) {
365 pdata = ven_req->pBuff;
368 unsend_size = ven_req->wLength;
370 /* the first package */
371 ven_req->wValue = ven_req->wValue & 0xFFFB;
372 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
373 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
374 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
375 ven_req->wValue, ven_req->wIndex, pdata,
377 unsend_size = unsend_size - 4;
379 /* the middle package */
380 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
381 while (unsend_size - 4 > 0) {
383 ret = __usb_control_msg(dev, pipe,
385 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
386 ven_req->wValue, ven_req->wIndex, pdata,
388 unsend_size = unsend_size - 4;
391 /* the last package */
392 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
394 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
395 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
396 ven_req->wValue, ven_req->wIndex, pdata,
399 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
400 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
401 ven_req->wValue, ven_req->wIndex,
402 ven_req->pBuff, ven_req->wLength, HZ);
409 * cx231xx_write_ctrl_reg()
410 * sends data to the usb device, specifying bRequest
412 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
417 int pipe = usb_sndctrlpipe(dev->udev, 0);
419 if (dev->state & DEV_DISCONNECTED)
422 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
427 val = ENABLE_ONE_BYTE;
430 val = ENABLE_TWE_BYTE;
433 val = ENABLE_THREE_BYTE;
436 val = ENABLE_FOUR_BYTE;
439 val = 0xFF; /* invalid option */
448 cx231xx_isocdbg("(pipe 0x%08x): OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
450 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
451 req, 0, val, reg & 0xff,
452 reg >> 8, len & 0xff, len >> 8);
454 for (byte = 0; byte < len; byte++)
455 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
456 cx231xx_isocdbg("\n");
459 ret = __usb_control_msg(dev, pipe, req,
460 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
461 val, reg, buf, len, HZ);
466 /****************************************************************
467 * USB Alternate Setting functions *
468 *****************************************************************/
470 int cx231xx_set_video_alternate(struct cx231xx *dev)
472 int errCode, prev_alt = dev->video_mode.alt;
473 unsigned int min_pkt_size = dev->width * 2 + 4;
474 u32 usb_interface_index = 0;
476 /* When image size is bigger than a certain value,
477 the frame size should be increased, otherwise, only
478 green screen will be received.
480 if (dev->width * 2 * dev->height > 720 * 240 * 2)
483 if (dev->width > 360) {
484 /* resolutions: 720,704,640 */
485 dev->video_mode.alt = 3;
486 } else if (dev->width > 180) {
487 /* resolutions: 360,352,320,240 */
488 dev->video_mode.alt = 2;
489 } else if (dev->width > 0) {
490 /* resolutions: 180,176,160,128,88 */
491 dev->video_mode.alt = 1;
493 /* Change to alt0 BULK to release USB bandwidth */
494 dev->video_mode.alt = 0;
497 if (dev->USE_ISO == 0)
498 dev->video_mode.alt = 0;
500 cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
502 /* Get the correct video interface Index */
503 usb_interface_index =
504 dev->current_pcb_config.hs_config_info[0].interface_info.
507 if (dev->video_mode.alt != prev_alt) {
508 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
509 min_pkt_size, dev->video_mode.alt);
511 if (dev->video_mode.alt_max_pkt_size != NULL)
512 dev->video_mode.max_pkt_size =
513 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
514 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
516 dev->video_mode.max_pkt_size);
518 usb_set_interface(dev->udev, usb_interface_index,
519 dev->video_mode.alt);
522 "cannot change alt number to %d (error=%i)\n",
523 dev->video_mode.alt, errCode);
530 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
533 u32 usb_interface_index = 0;
534 u32 max_pkt_size = 0;
538 usb_interface_index =
539 dev->current_pcb_config.hs_config_info[0].interface_info.
541 dev->ts1_mode.alt = alt;
542 if (dev->ts1_mode.alt_max_pkt_size != NULL)
543 max_pkt_size = dev->ts1_mode.max_pkt_size =
544 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
547 usb_interface_index =
548 dev->current_pcb_config.hs_config_info[0].interface_info.
552 usb_interface_index =
553 dev->current_pcb_config.hs_config_info[0].interface_info.
556 if (dev->adev.alt_max_pkt_size != NULL)
557 max_pkt_size = dev->adev.max_pkt_size =
558 dev->adev.alt_max_pkt_size[dev->adev.alt];
561 usb_interface_index =
562 dev->current_pcb_config.hs_config_info[0].interface_info.
564 dev->video_mode.alt = alt;
565 if (dev->video_mode.alt_max_pkt_size != NULL)
566 max_pkt_size = dev->video_mode.max_pkt_size =
567 dev->video_mode.alt_max_pkt_size[dev->video_mode.
571 if (dev->board.no_alt_vanc)
573 usb_interface_index =
574 dev->current_pcb_config.hs_config_info[0].interface_info.
576 dev->vbi_mode.alt = alt;
577 if (dev->vbi_mode.alt_max_pkt_size != NULL)
578 max_pkt_size = dev->vbi_mode.max_pkt_size =
579 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
582 usb_interface_index =
583 dev->current_pcb_config.hs_config_info[0].interface_info.
585 dev->sliced_cc_mode.alt = alt;
586 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
587 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
588 dev->sliced_cc_mode.alt_max_pkt_size[dev->
596 if (alt > 0 && max_pkt_size == 0) {
598 "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
599 usb_interface_index, alt);
600 /*To workaround error number=-71 on EP0 for videograbber,
601 need add following codes.*/
602 if (dev->board.no_alt_vanc)
606 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,Interface = %d\n",
608 usb_interface_index);
610 if (usb_interface_index > 0) {
611 status = usb_set_interface(dev->udev, usb_interface_index, alt);
614 "can't change interface %d alt no. to %d (err=%i)\n",
615 usb_interface_index, alt, status);
622 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
624 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
631 /* Send GPIO reset sequences specified at board entry */
632 while (gpio->sleep >= 0) {
633 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
645 int cx231xx_demod_reset(struct cx231xx *dev)
649 u8 value[4] = { 0, 0, 0, 0 };
651 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
654 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
655 value[0], value[1], value[2], value[3]);
657 cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
660 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
661 PWR_CTL_EN, value, 4);
665 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
666 PWR_CTL_EN, value, 4);
670 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
671 PWR_CTL_EN, value, 4);
674 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
677 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
678 value[0], value[1], value[2], value[3]);
682 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
683 int is_fw_load(struct cx231xx *dev)
685 return cx231xx_check_fw(dev);
687 EXPORT_SYMBOL_GPL(is_fw_load);
689 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
693 if (dev->mode == set_mode)
696 if (set_mode == CX231XX_SUSPEND) {
697 /* Set the chip in power saving mode */
698 dev->mode = set_mode;
701 /* Resource is locked */
702 if (dev->mode != CX231XX_SUSPEND)
705 dev->mode = set_mode;
707 if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
708 /* set AGC mode to Digital */
709 switch (dev->model) {
710 case CX231XX_BOARD_CNXT_CARRAERA:
711 case CX231XX_BOARD_CNXT_RDE_250:
712 case CX231XX_BOARD_CNXT_SHELBY:
713 case CX231XX_BOARD_CNXT_RDU_250:
714 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
716 case CX231XX_BOARD_CNXT_RDE_253S:
717 case CX231XX_BOARD_CNXT_RDU_253S:
718 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
719 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
721 case CX231XX_BOARD_HAUPPAUGE_EXETER:
722 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
723 errCode = cx231xx_set_power_mode(dev,
724 POLARIS_AVMODE_DIGITAL);
729 } else/* Set Analog Power mode */ {
730 /* set AGC mode to Analog */
731 switch (dev->model) {
732 case CX231XX_BOARD_CNXT_CARRAERA:
733 case CX231XX_BOARD_CNXT_RDE_250:
734 case CX231XX_BOARD_CNXT_SHELBY:
735 case CX231XX_BOARD_CNXT_RDU_250:
736 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
738 case CX231XX_BOARD_CNXT_RDE_253S:
739 case CX231XX_BOARD_CNXT_RDU_253S:
740 case CX231XX_BOARD_HAUPPAUGE_EXETER:
741 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
742 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
743 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
744 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
745 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
753 dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
754 dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
761 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
763 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
770 buffer = kzalloc(4096, GFP_KERNEL);
773 memcpy(&buffer[0], firmware, 4096);
775 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
776 buffer, 4096, &actlen, 2000);
780 "bulk message failed: %d (%d/%d)", ret,
783 errCode = actlen != size ? -1 : 0;
789 /*****************************************************************
790 * URB Streaming functions *
791 ******************************************************************/
794 * IRQ callback, called by URB callback
796 static void cx231xx_isoc_irq_callback(struct urb *urb)
798 struct cx231xx_dmaqueue *dma_q = urb->context;
799 struct cx231xx_video_mode *vmode =
800 container_of(dma_q, struct cx231xx_video_mode, vidq);
801 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
804 switch (urb->status) {
805 case 0: /* success */
806 case -ETIMEDOUT: /* NAK */
808 case -ECONNRESET: /* kill */
813 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
817 /* Copy data from URB */
818 spin_lock(&dev->video_mode.slock);
819 dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
820 spin_unlock(&dev->video_mode.slock);
822 /* Reset urb buffers */
823 for (i = 0; i < urb->number_of_packets; i++) {
824 urb->iso_frame_desc[i].status = 0;
825 urb->iso_frame_desc[i].actual_length = 0;
828 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
830 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
834 /*****************************************************************
835 * URB Streaming functions *
836 ******************************************************************/
839 * IRQ callback, called by URB callback
841 static void cx231xx_bulk_irq_callback(struct urb *urb)
843 struct cx231xx_dmaqueue *dma_q = urb->context;
844 struct cx231xx_video_mode *vmode =
845 container_of(dma_q, struct cx231xx_video_mode, vidq);
846 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
848 switch (urb->status) {
849 case 0: /* success */
850 case -ETIMEDOUT: /* NAK */
852 case -ECONNRESET: /* kill */
856 case -EPIPE: /* stall */
857 cx231xx_isocdbg("urb completion error - device is stalled.\n");
860 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
864 /* Copy data from URB */
865 spin_lock(&dev->video_mode.slock);
866 dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
867 spin_unlock(&dev->video_mode.slock);
869 /* Reset urb buffers */
870 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
872 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
877 * Stop and Deallocate URBs
879 void cx231xx_uninit_isoc(struct cx231xx *dev)
881 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
884 bool broken_pipe = false;
886 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
888 dev->video_mode.isoc_ctl.nfields = -1;
889 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
890 urb = dev->video_mode.isoc_ctl.urb[i];
892 if (!irqs_disabled())
897 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
898 usb_free_coherent(dev->udev,
899 urb->transfer_buffer_length,
900 dev->video_mode.isoc_ctl.
904 if (urb->status == -EPIPE) {
908 dev->video_mode.isoc_ctl.urb[i] = NULL;
910 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
914 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
915 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
917 kfree(dev->video_mode.isoc_ctl.urb);
918 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
919 kfree(dma_q->p_left_data);
921 dev->video_mode.isoc_ctl.urb = NULL;
922 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
923 dev->video_mode.isoc_ctl.num_bufs = 0;
924 dma_q->p_left_data = NULL;
926 if (dev->mode_tv == 0)
927 cx231xx_capture_start(dev, 0, Raw_Video);
929 cx231xx_capture_start(dev, 0, TS1_serial_mode);
933 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
936 * Stop and Deallocate URBs
938 void cx231xx_uninit_bulk(struct cx231xx *dev)
940 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
943 bool broken_pipe = false;
945 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
947 dev->video_mode.bulk_ctl.nfields = -1;
948 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
949 urb = dev->video_mode.bulk_ctl.urb[i];
951 if (!irqs_disabled())
956 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
957 usb_free_coherent(dev->udev,
958 urb->transfer_buffer_length,
959 dev->video_mode.bulk_ctl.
963 if (urb->status == -EPIPE) {
967 dev->video_mode.bulk_ctl.urb[i] = NULL;
969 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
973 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
974 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
976 kfree(dev->video_mode.bulk_ctl.urb);
977 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
978 kfree(dma_q->p_left_data);
980 dev->video_mode.bulk_ctl.urb = NULL;
981 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
982 dev->video_mode.bulk_ctl.num_bufs = 0;
983 dma_q->p_left_data = NULL;
985 if (dev->mode_tv == 0)
986 cx231xx_capture_start(dev, 0, Raw_Video);
988 cx231xx_capture_start(dev, 0, TS1_serial_mode);
992 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
995 * Allocate URBs and start IRQ
997 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
998 int num_bufs, int max_pkt_size,
999 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
1001 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1008 /* De-allocates all pending stuff */
1009 cx231xx_uninit_isoc(dev);
1011 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1012 if (dma_q->p_left_data == NULL)
1015 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1016 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1018 dma_q->is_partial_line = 0;
1019 dma_q->last_sav = 0;
1020 dma_q->current_field = -1;
1021 dma_q->field1_done = 0;
1022 dma_q->lines_per_field = dev->height / 2;
1023 dma_q->bytes_left_in_line = dev->width << 1;
1024 dma_q->lines_completed = 0;
1025 dma_q->mpeg_buffer_done = 0;
1026 dma_q->left_data_count = 0;
1027 dma_q->mpeg_buffer_completed = 0;
1028 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1029 dma_q->ps_head[0] = 0x00;
1030 dma_q->ps_head[1] = 0x00;
1031 dma_q->ps_head[2] = 0x01;
1032 dma_q->ps_head[3] = 0xBA;
1033 for (i = 0; i < 8; i++)
1034 dma_q->partial_buf[i] = 0;
1036 dev->video_mode.isoc_ctl.urb =
1037 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1038 if (!dev->video_mode.isoc_ctl.urb) {
1040 "cannot alloc memory for usb buffers\n");
1044 dev->video_mode.isoc_ctl.transfer_buffer =
1045 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1046 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1048 "cannot allocate memory for usbtransfer\n");
1049 kfree(dev->video_mode.isoc_ctl.urb);
1053 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1054 dev->video_mode.isoc_ctl.buf = NULL;
1056 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1058 if (dev->mode_tv == 1)
1059 dev->video_mode.end_point_addr = 0x81;
1061 dev->video_mode.end_point_addr = 0x84;
1064 /* allocate urbs and transfer buffers */
1065 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1066 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1068 cx231xx_uninit_isoc(dev);
1071 dev->video_mode.isoc_ctl.urb[i] = urb;
1073 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1074 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1075 &urb->transfer_dma);
1076 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1078 "unable to allocate %i bytes for transfer buffer %i%s\n",
1080 in_interrupt() ? " while in int" : "");
1081 cx231xx_uninit_isoc(dev);
1084 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1087 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1089 usb_fill_int_urb(urb, dev->udev, pipe,
1090 dev->video_mode.isoc_ctl.transfer_buffer[i],
1091 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1093 urb->number_of_packets = max_packets;
1094 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1097 for (j = 0; j < max_packets; j++) {
1098 urb->iso_frame_desc[j].offset = k;
1099 urb->iso_frame_desc[j].length =
1100 dev->video_mode.isoc_ctl.max_pkt_size;
1101 k += dev->video_mode.isoc_ctl.max_pkt_size;
1105 init_waitqueue_head(&dma_q->wq);
1107 /* submit urbs and enables IRQ */
1108 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1109 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1113 "submit of urb %i failed (error=%i)\n", i,
1115 cx231xx_uninit_isoc(dev);
1120 if (dev->mode_tv == 0)
1121 cx231xx_capture_start(dev, 1, Raw_Video);
1123 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1127 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1130 * Allocate URBs and start IRQ
1132 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1133 int num_bufs, int max_pkt_size,
1134 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1136 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1142 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1144 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1146 video_mux(dev, dev->video_input);
1148 /* De-allocates all pending stuff */
1149 cx231xx_uninit_bulk(dev);
1151 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1152 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1154 dma_q->is_partial_line = 0;
1155 dma_q->last_sav = 0;
1156 dma_q->current_field = -1;
1157 dma_q->field1_done = 0;
1158 dma_q->lines_per_field = dev->height / 2;
1159 dma_q->bytes_left_in_line = dev->width << 1;
1160 dma_q->lines_completed = 0;
1161 dma_q->mpeg_buffer_done = 0;
1162 dma_q->left_data_count = 0;
1163 dma_q->mpeg_buffer_completed = 0;
1164 dma_q->ps_head[0] = 0x00;
1165 dma_q->ps_head[1] = 0x00;
1166 dma_q->ps_head[2] = 0x01;
1167 dma_q->ps_head[3] = 0xBA;
1168 for (i = 0; i < 8; i++)
1169 dma_q->partial_buf[i] = 0;
1171 dev->video_mode.bulk_ctl.urb =
1172 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1173 if (!dev->video_mode.bulk_ctl.urb) {
1175 "cannot alloc memory for usb buffers\n");
1179 dev->video_mode.bulk_ctl.transfer_buffer =
1180 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1181 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1183 "cannot allocate memory for usbtransfer\n");
1184 kfree(dev->video_mode.bulk_ctl.urb);
1188 dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1189 dev->video_mode.bulk_ctl.buf = NULL;
1191 sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1193 if (dev->mode_tv == 1)
1194 dev->video_mode.end_point_addr = 0x81;
1196 dev->video_mode.end_point_addr = 0x84;
1199 /* allocate urbs and transfer buffers */
1200 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1201 urb = usb_alloc_urb(0, GFP_KERNEL);
1203 cx231xx_uninit_bulk(dev);
1206 dev->video_mode.bulk_ctl.urb[i] = urb;
1207 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1209 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1210 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1211 &urb->transfer_dma);
1212 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1214 "unable to allocate %i bytes for transfer buffer %i%s\n",
1216 in_interrupt() ? " while in int" : "");
1217 cx231xx_uninit_bulk(dev);
1220 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1222 pipe = usb_rcvbulkpipe(dev->udev,
1223 dev->video_mode.end_point_addr);
1224 usb_fill_bulk_urb(urb, dev->udev, pipe,
1225 dev->video_mode.bulk_ctl.transfer_buffer[i],
1226 sb_size, cx231xx_bulk_irq_callback, dma_q);
1230 rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1233 "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1235 cx231xx_uninit_bulk(dev);
1239 init_waitqueue_head(&dma_q->wq);
1241 /* submit urbs and enables IRQ */
1242 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1243 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1247 "submit of urb %i failed (error=%i)\n", i, rc);
1248 cx231xx_uninit_bulk(dev);
1253 if (dev->mode_tv == 0)
1254 cx231xx_capture_start(dev, 1, Raw_Video);
1256 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1260 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1261 void cx231xx_stop_TS1(struct cx231xx *dev)
1263 u8 val[4] = { 0, 0, 0, 0 };
1269 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1270 TS_MODE_REG, val, 4);
1276 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1277 TS1_CFG_REG, val, 4);
1279 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1280 void cx231xx_start_TS1(struct cx231xx *dev)
1282 u8 val[4] = { 0, 0, 0, 0 };
1288 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1289 TS_MODE_REG, val, 4);
1295 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1296 TS1_CFG_REG, val, 4);
1298 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1299 /*****************************************************************
1300 * Device Init/UnInit functions *
1301 ******************************************************************/
1302 int cx231xx_dev_init(struct cx231xx *dev)
1306 /* Initialize I2C bus */
1308 /* External Master 1 Bus */
1309 dev->i2c_bus[0].nr = 0;
1310 dev->i2c_bus[0].dev = dev;
1311 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1312 dev->i2c_bus[0].i2c_nostop = 0;
1313 dev->i2c_bus[0].i2c_reserve = 0;
1314 dev->i2c_bus[0].i2c_rc = -ENODEV;
1316 /* External Master 2 Bus */
1317 dev->i2c_bus[1].nr = 1;
1318 dev->i2c_bus[1].dev = dev;
1319 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1320 dev->i2c_bus[1].i2c_nostop = 0;
1321 dev->i2c_bus[1].i2c_reserve = 0;
1322 dev->i2c_bus[1].i2c_rc = -ENODEV;
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;
1330 dev->i2c_bus[2].i2c_rc = -ENODEV;
1332 /* register I2C buses */
1333 errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1336 errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1339 errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1343 errCode = cx231xx_i2c_mux_create(dev);
1346 "%s: Failed to create I2C mux\n", __func__);
1349 errCode = cx231xx_i2c_mux_register(dev, 0);
1353 errCode = cx231xx_i2c_mux_register(dev, 1);
1357 /* scan the real bus segments in the order of physical port numbers */
1358 cx231xx_do_i2c_scan(dev, I2C_0);
1359 cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1360 cx231xx_do_i2c_scan(dev, I2C_2);
1361 cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1364 /* Note : with out calling set power mode function,
1365 afe can not be set up correctly */
1366 if (dev->board.external_av) {
1367 errCode = cx231xx_set_power_mode(dev,
1368 POLARIS_AVMODE_ENXTERNAL_AV);
1371 "%s: Failed to set Power - errCode [%d]!\n",
1376 errCode = cx231xx_set_power_mode(dev,
1377 POLARIS_AVMODE_ANALOGT_TV);
1380 "%s: Failed to set Power - errCode [%d]!\n",
1386 /* reset the Tuner, if it is a Xceive tuner */
1387 if ((dev->board.tuner_type == TUNER_XC5000) ||
1388 (dev->board.tuner_type == TUNER_XC2028))
1389 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1391 /* initialize Colibri block */
1392 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1395 "%s: cx231xx_afe init super block - errCode [%d]!\n",
1399 errCode = cx231xx_afe_init_channels(dev);
1402 "%s: cx231xx_afe init channels - errCode [%d]!\n",
1407 /* Set DIF in By pass mode */
1408 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1411 "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1416 /* I2S block related functions */
1417 errCode = cx231xx_i2s_blk_initialize(dev);
1420 "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1425 /* init control pins */
1426 errCode = cx231xx_init_ctrl_pin_status(dev);
1429 "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1434 /* set AGC mode to Analog */
1435 switch (dev->model) {
1436 case CX231XX_BOARD_CNXT_CARRAERA:
1437 case CX231XX_BOARD_CNXT_RDE_250:
1438 case CX231XX_BOARD_CNXT_SHELBY:
1439 case CX231XX_BOARD_CNXT_RDU_250:
1440 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1442 case CX231XX_BOARD_CNXT_RDE_253S:
1443 case CX231XX_BOARD_CNXT_RDU_253S:
1444 case CX231XX_BOARD_HAUPPAUGE_EXETER:
1445 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1446 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1447 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1448 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1449 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1456 "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1461 /* set all alternate settings to zero initially */
1462 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1463 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1464 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1465 if (dev->board.has_dvb)
1466 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1471 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1473 void cx231xx_dev_uninit(struct cx231xx *dev)
1475 /* Un Initialize I2C bus */
1476 cx231xx_i2c_mux_unregister(dev);
1477 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1478 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1479 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1481 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1483 /*****************************************************************
1484 * G P I O related functions *
1485 ******************************************************************/
1486 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1487 u8 len, u8 request, u8 direction)
1490 struct VENDOR_REQUEST_IN ven_req;
1493 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1498 ven_req.bRequest = VRT_GET_GPIO; /* 0x9 gpio */
1500 ven_req.bRequest = VRT_SET_GPIO; /* 0x8 gpio */
1503 ven_req.bRequest = VRT_GET_GPIE; /* 0xb gpie */
1505 ven_req.bRequest = VRT_SET_GPIE; /* 0xa gpie */
1508 /* set index value */
1509 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1511 /* set wLength value */
1512 ven_req.wLength = len;
1514 /* set bData value */
1517 /* set the buffer for read / write */
1518 ven_req.pBuff = gpio_val;
1520 /* set the direction */
1522 ven_req.direction = USB_DIR_IN;
1523 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1525 ven_req.direction = USB_DIR_OUT;
1528 /* call common vendor command request */
1529 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1531 dev_err(dev->dev, "%s: failed with status -%d\n",
1537 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1539 /*****************************************************************
1540 * C O N T R O L - Register R E A D / W R I T E functions *
1541 *****************************************************************/
1542 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1544 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1549 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1553 tmp = le32_to_cpu(*((__le32 *) value));
1556 value[0] = (u8) tmp;
1557 value[1] = (u8) (tmp >> 8);
1558 value[2] = (u8) (tmp >> 16);
1559 value[3] = (u8) (tmp >> 24);
1562 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1567 /*****************************************************************
1568 * I 2 C Internal C O N T R O L functions *
1569 *****************************************************************/
1570 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1571 u8 saddr_len, u32 *data, u8 data_len, int master)
1574 struct cx231xx_i2c_xfer_data req_data;
1579 else if (saddr_len == 1)
1582 /* prepare xfer_data struct */
1583 req_data.dev_addr = dev_addr >> 1;
1584 req_data.direction = I2C_M_RD;
1585 req_data.saddr_len = saddr_len;
1586 req_data.saddr_dat = saddr;
1587 req_data.buf_size = data_len;
1588 req_data.p_buffer = (u8 *) value;
1590 /* usb send command */
1592 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1594 else if (master == 1)
1595 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1597 else if (master == 2)
1598 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1602 /* Copy the data read back to main buffer */
1605 else if (data_len == 4)
1607 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1609 else if (data_len > 4)
1610 *data = value[saddr];
1616 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1617 u8 saddr_len, u32 data, u8 data_len, int master)
1620 u8 value[4] = { 0, 0, 0, 0 };
1621 struct cx231xx_i2c_xfer_data req_data;
1623 value[0] = (u8) data;
1624 value[1] = (u8) (data >> 8);
1625 value[2] = (u8) (data >> 16);
1626 value[3] = (u8) (data >> 24);
1630 else if (saddr_len == 1)
1633 /* prepare xfer_data struct */
1634 req_data.dev_addr = dev_addr >> 1;
1635 req_data.direction = 0;
1636 req_data.saddr_len = saddr_len;
1637 req_data.saddr_dat = saddr;
1638 req_data.buf_size = data_len;
1639 req_data.p_buffer = value;
1641 /* usb send command */
1643 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1645 else if (master == 1)
1646 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1648 else if (master == 2)
1649 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1655 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1656 u8 saddr_len, u32 *data, u8 data_len)
1659 struct cx231xx_i2c_xfer_data req_data;
1660 u8 value[4] = { 0, 0, 0, 0 };
1664 else if (saddr_len == 1)
1667 /* prepare xfer_data struct */
1668 req_data.dev_addr = dev_addr >> 1;
1669 req_data.direction = I2C_M_RD;
1670 req_data.saddr_len = saddr_len;
1671 req_data.saddr_dat = saddr;
1672 req_data.buf_size = data_len;
1673 req_data.p_buffer = (u8 *) value;
1675 /* usb send command */
1676 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1679 /* Copy the data read back to main buffer */
1684 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1691 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1692 u8 saddr_len, u32 data, u8 data_len)
1695 u8 value[4] = { 0, 0, 0, 0 };
1696 struct cx231xx_i2c_xfer_data req_data;
1698 value[0] = (u8) data;
1699 value[1] = (u8) (data >> 8);
1700 value[2] = (u8) (data >> 16);
1701 value[3] = (u8) (data >> 24);
1705 else if (saddr_len == 1)
1708 /* prepare xfer_data struct */
1709 req_data.dev_addr = dev_addr >> 1;
1710 req_data.direction = 0;
1711 req_data.saddr_len = saddr_len;
1712 req_data.saddr_dat = saddr;
1713 req_data.buf_size = data_len;
1714 req_data.p_buffer = value;
1716 /* usb send command */
1717 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1722 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1723 u16 register_address, u8 bit_start, u8 bit_end,
1731 if (bit_start > (size - 1) || bit_end > (size - 1))
1736 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1740 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1747 mask = 1 << bit_end;
1748 for (i = bit_end; i > bit_start && i > 0; i--)
1749 mask = mask + (1 << (i - 1));
1751 value <<= bit_start;
1758 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1764 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1771 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1772 u16 saddr, u32 mask, u32 value)
1777 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1785 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1790 u32 cx231xx_set_field(u32 field_mask, u32 data)
1794 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)