1 // SPDX-License-Identifier: GPL-2.0-or-later
6  * TBS 6920 PCIe DVB-S2 cards.
9  * GPIO0 - data		- P0.3 F300
10  * GPIO1 - reset	- P0.2 F300
11  * GPIO2 - clk		- P0.1 F300
12  * GPIO3 - busy		- P0.0 F300
18 #include "cx23885-f300.h"
75 	struct cx23885_tsport *port = fe->dvb->priv;  in f300_xfer()
76 	struct cx23885_dev *dev = port->dev;  in f300_xfer()
77 	u8 i, temp, ret = 0;  in f300_xfer()  local
79 	temp = buf[0];  in f300_xfer()
81 		temp += buf[i + 1];  in f300_xfer()
82 	temp = (~temp + 1);/* get check sum */  in f300_xfer()
83 	buf[1 + buf[0]] = temp;  in f300_xfer()
98 	temp = buf[0];  in f300_xfer()
99 	temp += 2;  in f300_xfer()
100 	for (i = 0; i < temp; i++)  in f300_xfer()
107 	temp = 0;  in f300_xfer()
108 	for (i = 0; ((i < 8) & (temp == 0)); i++) {  in f300_xfer()
111 			temp = 1;  in f300_xfer()
123 		temp = f300_get_byte(dev);/*get the data length */  in f300_xfer()
124 		if (temp > 14)  in f300_xfer()
125 			temp = 14;  in f300_xfer()
127 		for (i = 0; i < (temp + 1); i++)  in f300_xfer()
148 		buf[4] = 0x02;/* B port, H/V */  in f300_set_voltage()
153 		buf[4] = 0x02;  in f300_set_voltage()
158 		buf[4] = 0x00;  in f300_set_voltage()