mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-05-02 18:17:50 -04:00
bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
133 lines
3.1 KiB
C
133 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* lnbp22.h - driver for lnb supply and control ic lnbp22
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*
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* Copyright (C) 2006 Dominik Kuhlen
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* Based on lnbp21 driver
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*
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* the project's page is at https://linuxtv.org
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*/
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <media/dvb_frontend.h>
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#include "lnbp22.h"
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
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#define dprintk(lvl, arg...) if (debug >= (lvl)) printk(arg)
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struct lnbp22 {
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u8 config[4];
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struct i2c_adapter *i2c;
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};
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static int lnbp22_set_voltage(struct dvb_frontend *fe,
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enum fe_sec_voltage voltage)
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{
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struct lnbp22 *lnbp22 = (struct lnbp22 *)fe->sec_priv;
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struct i2c_msg msg = {
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.addr = 0x08,
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.flags = 0,
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.buf = (char *)&lnbp22->config,
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.len = sizeof(lnbp22->config),
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};
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dprintk(1, "%s: %d (18V=%d 13V=%d)\n", __func__, voltage,
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SEC_VOLTAGE_18, SEC_VOLTAGE_13);
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lnbp22->config[3] = 0x60; /* Power down */
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switch (voltage) {
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case SEC_VOLTAGE_OFF:
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break;
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case SEC_VOLTAGE_13:
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lnbp22->config[3] |= LNBP22_EN;
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break;
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case SEC_VOLTAGE_18:
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lnbp22->config[3] |= (LNBP22_EN | LNBP22_VSEL);
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break;
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default:
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return -EINVAL;
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}
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dprintk(1, "%s: 0x%02x)\n", __func__, lnbp22->config[3]);
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return (i2c_transfer(lnbp22->i2c, &msg, 1) == 1) ? 0 : -EIO;
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}
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static int lnbp22_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
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{
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struct lnbp22 *lnbp22 = (struct lnbp22 *) fe->sec_priv;
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struct i2c_msg msg = {
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.addr = 0x08,
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.flags = 0,
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.buf = (char *)&lnbp22->config,
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.len = sizeof(lnbp22->config),
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};
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dprintk(1, "%s: %d\n", __func__, (int)arg);
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if (arg)
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lnbp22->config[3] |= LNBP22_LLC;
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else
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lnbp22->config[3] &= ~LNBP22_LLC;
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return (i2c_transfer(lnbp22->i2c, &msg, 1) == 1) ? 0 : -EIO;
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}
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static void lnbp22_release(struct dvb_frontend *fe)
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{
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dprintk(1, "%s\n", __func__);
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/* LNBP power off */
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lnbp22_set_voltage(fe, SEC_VOLTAGE_OFF);
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/* free data */
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kfree(fe->sec_priv);
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fe->sec_priv = NULL;
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}
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struct dvb_frontend *lnbp22_attach(struct dvb_frontend *fe,
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struct i2c_adapter *i2c)
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{
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struct lnbp22 *lnbp22 = kmalloc_obj(struct lnbp22);
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if (!lnbp22)
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return NULL;
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/* default configuration */
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lnbp22->config[0] = 0x00; /* ? */
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lnbp22->config[1] = 0x28; /* ? */
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lnbp22->config[2] = 0x48; /* ? */
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lnbp22->config[3] = 0x60; /* Power down */
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lnbp22->i2c = i2c;
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fe->sec_priv = lnbp22;
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/* detect if it is present or not */
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if (lnbp22_set_voltage(fe, SEC_VOLTAGE_OFF)) {
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dprintk(0, "%s LNBP22 not found\n", __func__);
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kfree(lnbp22);
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fe->sec_priv = NULL;
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return NULL;
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}
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/* install release callback */
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fe->ops.release_sec = lnbp22_release;
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/* override frontend ops */
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fe->ops.set_voltage = lnbp22_set_voltage;
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fe->ops.enable_high_lnb_voltage = lnbp22_enable_high_lnb_voltage;
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return fe;
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}
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EXPORT_SYMBOL_GPL(lnbp22_attach);
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MODULE_DESCRIPTION("Driver for lnb supply and control ic lnbp22");
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MODULE_AUTHOR("Dominik Kuhlen");
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MODULE_LICENSE("GPL");
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