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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>
243 lines
4.6 KiB
C
243 lines
4.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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Driver for ST STB6000 DVBS Silicon tuner
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Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
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*/
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/dvb/frontend.h>
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#include <asm/types.h>
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#include "stb6000.h"
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static int debug;
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#define dprintk(args...) \
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do { \
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if (debug) \
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printk(KERN_DEBUG "stb6000: " args); \
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} while (0)
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struct stb6000_priv {
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/* i2c details */
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int i2c_address;
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struct i2c_adapter *i2c;
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u32 frequency;
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};
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static void stb6000_release(struct dvb_frontend *fe)
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{
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kfree(fe->tuner_priv);
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fe->tuner_priv = NULL;
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}
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static int stb6000_sleep(struct dvb_frontend *fe)
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{
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struct stb6000_priv *priv = fe->tuner_priv;
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int ret;
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u8 buf[] = { 10, 0 };
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struct i2c_msg msg = {
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.addr = priv->i2c_address,
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.flags = 0,
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.buf = buf,
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.len = 2
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};
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dprintk("%s:\n", __func__);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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ret = i2c_transfer(priv->i2c, &msg, 1);
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if (ret != 1)
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dprintk("%s: i2c error\n", __func__);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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return (ret == 1) ? 0 : ret;
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}
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static int stb6000_set_params(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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struct stb6000_priv *priv = fe->tuner_priv;
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unsigned int n, m;
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int ret;
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u32 freq_mhz;
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int bandwidth;
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u8 buf[12];
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struct i2c_msg msg = {
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.addr = priv->i2c_address,
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.flags = 0,
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.buf = buf,
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.len = 12
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};
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dprintk("%s:\n", __func__);
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freq_mhz = p->frequency / 1000;
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bandwidth = p->symbol_rate / 1000000;
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if (bandwidth > 31)
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bandwidth = 31;
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if ((freq_mhz > 949) && (freq_mhz < 2151)) {
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buf[0] = 0x01;
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buf[1] = 0xac;
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if (freq_mhz < 1950)
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buf[1] = 0xaa;
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if (freq_mhz < 1800)
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buf[1] = 0xa8;
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if (freq_mhz < 1650)
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buf[1] = 0xa6;
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if (freq_mhz < 1530)
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buf[1] = 0xa5;
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if (freq_mhz < 1470)
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buf[1] = 0xa4;
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if (freq_mhz < 1370)
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buf[1] = 0xa2;
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if (freq_mhz < 1300)
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buf[1] = 0xa1;
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if (freq_mhz < 1200)
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buf[1] = 0xa0;
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if (freq_mhz < 1075)
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buf[1] = 0xbc;
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if (freq_mhz < 1000)
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buf[1] = 0xba;
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if (freq_mhz < 1075) {
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n = freq_mhz / 8; /* vco=lo*4 */
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m = 2;
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} else {
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n = freq_mhz / 16; /* vco=lo*2 */
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m = 1;
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}
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buf[2] = n >> 1;
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buf[3] = (unsigned char)(((n & 1) << 7) |
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(m * freq_mhz - n * 16) | 0x60);
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buf[4] = 0x04;
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buf[5] = 0x0e;
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buf[6] = (unsigned char)(bandwidth);
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buf[7] = 0xd8;
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buf[8] = 0xd0;
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buf[9] = 0x50;
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buf[10] = 0xeb;
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buf[11] = 0x4f;
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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ret = i2c_transfer(priv->i2c, &msg, 1);
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if (ret != 1)
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dprintk("%s: i2c error\n", __func__);
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udelay(10);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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buf[0] = 0x07;
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buf[1] = 0xdf;
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buf[2] = 0xd0;
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buf[3] = 0x50;
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buf[4] = 0xfb;
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msg.len = 5;
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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ret = i2c_transfer(priv->i2c, &msg, 1);
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if (ret != 1)
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dprintk("%s: i2c error\n", __func__);
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udelay(10);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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priv->frequency = freq_mhz * 1000;
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return (ret == 1) ? 0 : ret;
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}
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return -1;
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}
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static int stb6000_get_frequency(struct dvb_frontend *fe, u32 *frequency)
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{
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struct stb6000_priv *priv = fe->tuner_priv;
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*frequency = priv->frequency;
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return 0;
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}
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static const struct dvb_tuner_ops stb6000_tuner_ops = {
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.info = {
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.name = "ST STB6000",
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.frequency_min_hz = 950 * MHz,
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.frequency_max_hz = 2150 * MHz
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},
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.release = stb6000_release,
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.sleep = stb6000_sleep,
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.set_params = stb6000_set_params,
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.get_frequency = stb6000_get_frequency,
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};
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struct dvb_frontend *stb6000_attach(struct dvb_frontend *fe, int addr,
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struct i2c_adapter *i2c)
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{
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struct stb6000_priv *priv = NULL;
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u8 b0[] = { 0 };
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u8 b1[] = { 0, 0 };
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struct i2c_msg msg[2] = {
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{
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.addr = addr,
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.flags = 0,
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.buf = b0,
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.len = 0
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}, {
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.addr = addr,
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.flags = I2C_M_RD,
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.buf = b1,
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.len = 2
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}
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};
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int ret;
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dprintk("%s:\n", __func__);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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/* is some i2c device here ? */
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ret = i2c_transfer(i2c, msg, 2);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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if (ret != 2)
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return NULL;
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priv = kzalloc_obj(struct stb6000_priv);
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if (priv == NULL)
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return NULL;
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priv->i2c_address = addr;
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priv->i2c = i2c;
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memcpy(&fe->ops.tuner_ops, &stb6000_tuner_ops,
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sizeof(struct dvb_tuner_ops));
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fe->tuner_priv = priv;
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return fe;
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}
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EXPORT_SYMBOL_GPL(stb6000_attach);
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
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MODULE_DESCRIPTION("DVB STB6000 driver");
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MODULE_AUTHOR("Igor M. Liplianin <liplianin@me.by>");
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MODULE_LICENSE("GPL");
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