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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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0df289a209
The DVB API was originally defined using typedefs. This is against
Kernel CodingStyle, and there's no good usage here. While we can't
remove its usage on userspace, we can avoid its usage in Kernelspace.
So, let's do it.
This patch was generated by this shell script:
for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done
While here, make CodingStyle fixes on the affected lines.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
175 lines
3.9 KiB
C
175 lines
3.9 KiB
C
/*
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* Driver for Silicon Labs C8051F300 microcontroller.
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*
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* It is used for LNB power control in TeVii S470,
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* TBS 6920 PCIe DVB-S2 cards.
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*
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* Microcontroller connected to cx23885 GPIO pins:
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* GPIO0 - data - P0.3 F300
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* GPIO1 - reset - P0.2 F300
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* GPIO2 - clk - P0.1 F300
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* GPIO3 - busy - P0.0 F300
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*
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* Copyright (C) 2009 Igor M. Liplianin <liplianin@me.by>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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* GNU General Public License for more details.
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*/
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#include "cx23885.h"
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#include "cx23885-f300.h"
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#define F300_DATA GPIO_0
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#define F300_RESET GPIO_1
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#define F300_CLK GPIO_2
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#define F300_BUSY GPIO_3
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static void f300_set_line(struct cx23885_dev *dev, u32 line, u8 lvl)
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{
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cx23885_gpio_enable(dev, line, 1);
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if (lvl == 1)
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cx23885_gpio_set(dev, line);
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else
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cx23885_gpio_clear(dev, line);
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}
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static u8 f300_get_line(struct cx23885_dev *dev, u32 line)
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{
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cx23885_gpio_enable(dev, line, 0);
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return cx23885_gpio_get(dev, line);
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}
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static void f300_send_byte(struct cx23885_dev *dev, u8 dta)
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{
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u8 i;
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for (i = 0; i < 8; i++) {
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f300_set_line(dev, F300_CLK, 0);
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udelay(30);
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f300_set_line(dev, F300_DATA, (dta & 0x80) >> 7);/* msb first */
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udelay(30);
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dta <<= 1;
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f300_set_line(dev, F300_CLK, 1);
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udelay(30);
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}
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}
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static u8 f300_get_byte(struct cx23885_dev *dev)
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{
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u8 i, dta = 0;
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for (i = 0; i < 8; i++) {
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f300_set_line(dev, F300_CLK, 0);
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udelay(30);
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dta <<= 1;
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f300_set_line(dev, F300_CLK, 1);
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udelay(30);
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dta |= f300_get_line(dev, F300_DATA);/* msb first */
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}
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return dta;
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}
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static u8 f300_xfer(struct dvb_frontend *fe, u8 *buf)
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{
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struct cx23885_tsport *port = fe->dvb->priv;
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struct cx23885_dev *dev = port->dev;
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u8 i, temp, ret = 0;
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temp = buf[0];
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for (i = 0; i < buf[0]; i++)
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temp += buf[i + 1];
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temp = (~temp + 1);/* get check sum */
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buf[1 + buf[0]] = temp;
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f300_set_line(dev, F300_RESET, 1);
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f300_set_line(dev, F300_CLK, 1);
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udelay(30);
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f300_set_line(dev, F300_DATA, 1);
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msleep(1);
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/* question: */
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f300_set_line(dev, F300_RESET, 0);/* begin to send data */
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msleep(1);
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f300_send_byte(dev, 0xe0);/* the slave address is 0xe0, write */
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msleep(1);
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temp = buf[0];
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temp += 2;
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for (i = 0; i < temp; i++)
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f300_send_byte(dev, buf[i]);
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f300_set_line(dev, F300_RESET, 1);/* sent data over */
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f300_set_line(dev, F300_DATA, 1);
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/* answer: */
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temp = 0;
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for (i = 0; ((i < 8) & (temp == 0)); i++) {
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msleep(1);
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if (f300_get_line(dev, F300_BUSY) == 0)
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temp = 1;
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}
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if (i > 7) {
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printk(KERN_ERR "%s: timeout, the slave no response\n",
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__func__);
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ret = 1; /* timeout, the slave no response */
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} else { /* the slave not busy, prepare for getting data */
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f300_set_line(dev, F300_RESET, 0);/*ready...*/
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msleep(1);
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f300_send_byte(dev, 0xe1);/* 0xe1 is Read */
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msleep(1);
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temp = f300_get_byte(dev);/*get the data length */
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if (temp > 14)
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temp = 14;
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for (i = 0; i < (temp + 1); i++)
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f300_get_byte(dev);/* get data to empty buffer */
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f300_set_line(dev, F300_RESET, 1);/* received data over */
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f300_set_line(dev, F300_DATA, 1);
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}
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return ret;
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}
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int f300_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage)
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{
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u8 buf[16];
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buf[0] = 0x05;
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buf[1] = 0x38;/* write port */
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buf[2] = 0x01;/* A port, lnb power */
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switch (voltage) {
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case SEC_VOLTAGE_13:
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buf[3] = 0x01;/* power on */
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buf[4] = 0x02;/* B port, H/V */
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buf[5] = 0x00;/*13V v*/
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break;
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case SEC_VOLTAGE_18:
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buf[3] = 0x01;
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buf[4] = 0x02;
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buf[5] = 0x01;/* 18V h*/
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break;
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case SEC_VOLTAGE_OFF:
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buf[3] = 0x00;/* power off */
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buf[4] = 0x00;
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buf[5] = 0x00;
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break;
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}
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return f300_xfer(fe, buf);
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}
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