51 static int usbvision_i2c_write(struct usb_usbvision *usbvision, unsigned char addr, char *buf,
53 static int usbvision_i2c_read(struct usb_usbvision *usbvision, unsigned char addr, char *buf,
59 	struct usb_usbvision *usbvision;  in try_write_address()  local
63 	usbvision = (struct usb_usbvision *)i2c_get_adapdata(i2c_adap);  in try_write_address()
66 		ret = (usbvision_i2c_write(usbvision, addr, buf, 1));  in try_write_address()
84 	struct usb_usbvision *usbvision;  in try_read_address()  local
88 	usbvision = (struct usb_usbvision *)i2c_get_adapdata(i2c_adap);  in try_read_address()
90 		ret = (usbvision_i2c_read(usbvision, addr, buf, 1));  in try_read_address()
134 	struct usb_usbvision *usbvision;  in usbvision_i2c_xfer()  local
138 	usbvision = (struct usb_usbvision *)i2c_get_adapdata(i2c_adap);  in usbvision_i2c_xfer()
150 			ret = (usbvision_i2c_read(usbvision, addr, pmsg->buf, pmsg->len));  in usbvision_i2c_xfer()
155 			ret = (usbvision_i2c_write(usbvision, addr, pmsg->buf, pmsg->len));  in usbvision_i2c_xfer()
182 int usbvision_i2c_register(struct usb_usbvision *usbvision)  in usbvision_i2c_register()  argument
189 	if (usbvision->registered_i2c)  in usbvision_i2c_register()
192 	usbvision->i2c_adap = i2c_adap_template;  in usbvision_i2c_register()
194 	sprintf(usbvision->i2c_adap.name, "%s-%d-%s", i2c_adap_template.name,  in usbvision_i2c_register()
195 		usbvision->dev->bus->busnum, usbvision->dev->devpath);  in usbvision_i2c_register()
196 	PDEBUG(DBG_I2C, "Adaptername: %s", usbvision->i2c_adap.name);  in usbvision_i2c_register()
197 	usbvision->i2c_adap.dev.parent = &usbvision->dev->dev;  in usbvision_i2c_register()
199 	i2c_set_adapdata(&usbvision->i2c_adap, &usbvision->v4l2_dev);  in usbvision_i2c_register()
201 	if (usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_IIC_LRNACK) < 0) {  in usbvision_i2c_register()
211 	usbvision->i2c_adap.algo = &usbvision_algo;  in usbvision_i2c_register()
213 	usbvision->i2c_adap.timeout = 100;	/* default values, should       */  in usbvision_i2c_register()
214 	usbvision->i2c_adap.retries = 3;	/* be replaced by defines       */  in usbvision_i2c_register()
216 	i2c_add_adapter(&usbvision->i2c_adap);  in usbvision_i2c_register()
218 	PDEBUG(DBG_I2C, "i2c bus for %s registered", usbvision->i2c_adap.name);  in usbvision_i2c_register()
221 	switch (usbvision_device_data[usbvision->dev_model].codec) {  in usbvision_i2c_register()
227 		v4l2_i2c_new_subdev(&usbvision->v4l2_dev,  in usbvision_i2c_register()
228 				&usbvision->i2c_adap,  in usbvision_i2c_register()
232 	if (usbvision_device_data[usbvision->dev_model].tuner == 1) {  in usbvision_i2c_register()
237 		sd = v4l2_i2c_new_subdev(&usbvision->v4l2_dev,  in usbvision_i2c_register()
238 				&usbvision->i2c_adap,  in usbvision_i2c_register()
244 		sd = v4l2_i2c_new_subdev(&usbvision->v4l2_dev,  in usbvision_i2c_register()
245 				&usbvision->i2c_adap,  in usbvision_i2c_register()
250 		if (usbvision->tuner_type != -1) {  in usbvision_i2c_register()
252 			tun_setup.type = usbvision->tuner_type;  in usbvision_i2c_register()
254 			call_all(usbvision, tuner, s_type_addr, &tun_setup);  in usbvision_i2c_register()
257 	usbvision->registered_i2c = 1;  in usbvision_i2c_register()
262 int usbvision_i2c_unregister(struct usb_usbvision *usbvision)  in usbvision_i2c_unregister()  argument
264 	if (!usbvision->registered_i2c)  in usbvision_i2c_unregister()
267 	i2c_del_adapter(&(usbvision->i2c_adap));  in usbvision_i2c_unregister()
268 	usbvision->registered_i2c = 0;  in usbvision_i2c_unregister()
270 	PDEBUG(DBG_I2C, "i2c bus for %s unregistered", usbvision->i2c_adap.name);  in usbvision_i2c_unregister()
276 usbvision_i2c_read_max4(struct usb_usbvision *usbvision, unsigned char addr,  in usbvision_i2c_read_max4()  argument
282 		rc = usbvision_write_reg(usbvision, USBVISION_SER_ADRS, addr);  in usbvision_i2c_read_max4()
289 		rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,  in usbvision_i2c_read_max4()
297 			rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);  in usbvision_i2c_read_max4()
307 		rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);  in usbvision_i2c_read_max4()
317 		buf[3] = usbvision_read_reg(usbvision, USBVISION_SER_DAT4);  in usbvision_i2c_read_max4()
319 		buf[2] = usbvision_read_reg(usbvision, USBVISION_SER_DAT3);  in usbvision_i2c_read_max4()
321 		buf[1] = usbvision_read_reg(usbvision, USBVISION_SER_DAT2);  in usbvision_i2c_read_max4()
323 		buf[0] = usbvision_read_reg(usbvision, USBVISION_SER_DAT1);  in usbvision_i2c_read_max4()
340 static int usbvision_i2c_write_max4(struct usb_usbvision *usbvision,  in usbvision_i2c_write_max4()  argument
357 		rc = usb_control_msg(usbvision->dev,  in usbvision_i2c_write_max4()
358 				     usb_sndctrlpipe(usbvision->dev, 1),  in usbvision_i2c_write_max4()
368 		rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,  in usbvision_i2c_write_max4()
375 			rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);  in usbvision_i2c_write_max4()
384 		usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);  in usbvision_i2c_write_max4()
400 static int usbvision_i2c_write(struct usb_usbvision *usbvision, unsigned char addr, char *buf,  in usbvision_i2c_write()  argument
411 		retval = usbvision_i2c_write_max4(usbvision, addr, buf_ptr, count);  in usbvision_i2c_write()
422 static int usbvision_i2c_read(struct usb_usbvision *usbvision, unsigned char addr, char *buf,  in usbvision_i2c_read()  argument
432 		retval = usbvision_i2c_read_max4(usbvision, addr, temp, count);  in usbvision_i2c_read()