1 // SPDX-License-Identifier: GPL-2.0-or-later
17 #include <media/v4l2-common.h>
28 	struct au0828_dev *dev = i2c_adap->algo_data;  in i2c_slave_did_read_ack()
51 	struct au0828_dev *dev = i2c_adap->algo_data;  in i2c_is_read_busy()
74 	struct au0828_dev *dev = i2c_adap->algo_data;  in i2c_is_write_done()
97 	struct au0828_dev *dev = i2c_adap->algo_data;  in i2c_is_busy()
123 	struct au0828_dev *dev = i2c_adap->algo_data;  in i2c_sendbytes()
124 	u8 i2c_speed = dev->board.i2c_clk_divider;  in i2c_sendbytes()
130 	if (((dev->board.tuner_type == TUNER_XC5000) ||  in i2c_sendbytes()
131 	     (dev->board.tuner_type == TUNER_XC5000C)) &&  in i2c_sendbytes()
132 	    (dev->board.tuner_addr == msg->addr)) {  in i2c_sendbytes()
138 		if (msg->len == 64)  in i2c_sendbytes()
146 	/* Hardware needs 8 bit addresses */  in i2c_sendbytes()
147 	au0828_write(dev, AU0828_I2C_DEST_ADDR_203, msg->addr << 1);  in i2c_sendbytes()
149 	dprintk(4, "SEND: %02x\n", msg->addr);  in i2c_sendbytes()
152 	if (msg->len == 0) {  in i2c_sendbytes()
163 			return -EIO;  in i2c_sendbytes()
166 			return -EIO;  in i2c_sendbytes()
171 	for (i = 0; i < msg->len;) {  in i2c_sendbytes()
173 		dprintk(4, " %02x\n", msg->buf[i]);  in i2c_sendbytes()
175 		au0828_write(dev, AU0828_I2C_WRITE_FIFO_205, msg->buf[i]);  in i2c_sendbytes()
180 		if ((strobe >= 4) || (i >= msg->len)) {  in i2c_sendbytes()
183 			if (i < msg->len)  in i2c_sendbytes()
195 				return -EIO;  in i2c_sendbytes()
201 		return -EIO;  in i2c_sendbytes()
205 	return msg->len;  in i2c_sendbytes()
212 	struct au0828_dev *dev = i2c_adap->algo_data;  in i2c_readbytes()
213 	u8 i2c_speed = dev->board.i2c_clk_divider;  in i2c_readbytes()
224 	if (((dev->board.tuner_type == TUNER_XC5000) ||  in i2c_readbytes()
225 	     (dev->board.tuner_type == TUNER_XC5000C)) &&  in i2c_readbytes()
226 	    (dev->board.tuner_addr == msg->addr))  in i2c_readbytes()
232 	/* Hardware needs 8 bit addresses */  in i2c_readbytes()
233 	au0828_write(dev, AU0828_I2C_DEST_ADDR_203, msg->addr << 1);  in i2c_readbytes()
238 	if (msg->len == 0) {  in i2c_readbytes()
243 			return -EIO;  in i2c_readbytes()
247 	for (i = 0; i < msg->len;) {  in i2c_readbytes()
251 		if (i < msg->len)  in i2c_readbytes()
260 			return -EIO;  in i2c_readbytes()
262 		msg->buf[i-1] = au0828_read(dev, AU0828_I2C_READ_FIFO_209) &  in i2c_readbytes()
265 		dprintk(4, " %02x\n", msg->buf[i-1]);  in i2c_readbytes()
268 		return -EIO;  in i2c_readbytes()
272 	return msg->len;  in i2c_readbytes()
276 		    struct i2c_msg *msgs, int num)  in i2c_xfer()  argument
280 	dprintk(4, "%s(num = %d)\n", __func__, num);  in i2c_xfer()
282 	for (i = 0; i < num; i++) {  in i2c_xfer()
283 		dprintk(4, "%s(num = %d) addr = 0x%02x  len = 0x%x\n",  in i2c_xfer()
284 			__func__, num, msgs[i].addr, msgs[i].len);  in i2c_xfer()
288 		} else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) &&  in i2c_xfer()
304 	return num;  in i2c_xfer()
320 /* ----------------------------------------------------------------------- */
344 		c->addr = i;  in do_i2c_scan()
358 	dev->i2c_adap = au0828_i2c_adap_template;  in au0828_i2c_register()
359 	dev->i2c_algo = au0828_i2c_algo_template;  in au0828_i2c_register()
360 	dev->i2c_client = au0828_i2c_client_template;  in au0828_i2c_register()
362 	dev->i2c_adap.dev.parent = &dev->usbdev->dev;  in au0828_i2c_register()
364 	strscpy(dev->i2c_adap.name, KBUILD_MODNAME,  in au0828_i2c_register()
365 		sizeof(dev->i2c_adap.name));  in au0828_i2c_register()
367 	dev->i2c_adap.algo = &dev->i2c_algo;  in au0828_i2c_register()
368 	dev->i2c_adap.algo_data = dev;  in au0828_i2c_register()
370 	i2c_set_adapdata(&dev->i2c_adap, &dev->v4l2_dev);  in au0828_i2c_register()
372 	i2c_set_adapdata(&dev->i2c_adap, dev);  in au0828_i2c_register()
374 	i2c_add_adapter(&dev->i2c_adap);  in au0828_i2c_register()
376 	dev->i2c_client.adapter = &dev->i2c_adap;  in au0828_i2c_register()
378 	if (0 == dev->i2c_rc) {  in au0828_i2c_register()
381 			do_i2c_scan(KBUILD_MODNAME, &dev->i2c_client);  in au0828_i2c_register()
385 	return dev->i2c_rc;  in au0828_i2c_register()
390 	i2c_del_adapter(&dev->i2c_adap);  in au0828_i2c_unregister()