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7c17c55248
The msp_sleep() is nearly open-coded wait_event_interruptible_timeout(), and a freezable kernel thread can enter frozen state during freezing by either calling try_to_freeze() or using wait_event_freezable() and its variants. So we can reimplement msp_sleep() to simply invoke a wait_event_freezable_timeout() and then eliminate a call to try_to_freeze(). Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
150 lines
3.6 KiB
C
150 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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*/
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#ifndef MSP3400_DRIVER_H
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#define MSP3400_DRIVER_H
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#include <media/drv-intf/msp3400.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-mc.h>
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/* ---------------------------------------------------------------------- */
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/* This macro is allowed for *constants* only, gcc must calculate it
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at compile time. Remember -- no floats in kernel mode */
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#define MSP_CARRIER(freq) ((int)((float)(freq / 18.432) * (1 << 24)))
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#define MSP_MODE_AM_DETECT 0
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#define MSP_MODE_FM_RADIO 2
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#define MSP_MODE_FM_TERRA 3
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#define MSP_MODE_FM_SAT 4
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#define MSP_MODE_FM_NICAM1 5
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#define MSP_MODE_FM_NICAM2 6
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#define MSP_MODE_AM_NICAM 7
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#define MSP_MODE_BTSC 8
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#define MSP_MODE_EXTERN 9
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#define SCART_IN1 0
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#define SCART_IN2 1
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#define SCART_IN3 2
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#define SCART_IN4 3
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#define SCART_IN1_DA 4
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#define SCART_IN2_DA 5
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#define SCART_MONO 6
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#define SCART_MUTE 7
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#define SCART_DSP_IN 0
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#define SCART1_OUT 1
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#define SCART2_OUT 2
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#define OPMODE_AUTO -1
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#define OPMODE_MANUAL 0
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#define OPMODE_AUTODETECT 1 /* use autodetect (>= msp3410 only) */
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#define OPMODE_AUTOSELECT 2 /* use autodetect & autoselect (>= msp34xxG) */
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/* module parameters */
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extern int msp_debug;
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extern bool msp_once;
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extern bool msp_amsound;
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extern int msp_standard;
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extern bool msp_dolby;
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extern int msp_stereo_thresh;
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enum msp3400_pads {
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MSP3400_PAD_IF_INPUT,
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MSP3400_PAD_OUT,
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MSP3400_NUM_PADS
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};
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struct msp_state {
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struct v4l2_subdev sd;
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struct v4l2_ctrl_handler hdl;
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int rev1, rev2;
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int ident;
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u8 has_nicam;
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u8 has_radio;
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u8 has_headphones;
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u8 has_ntsc_jp_d_k3;
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u8 has_scart2;
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u8 has_scart3;
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u8 has_scart4;
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u8 has_scart2_out;
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u8 has_scart2_out_volume;
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u8 has_i2s_conf;
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u8 has_subwoofer;
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u8 has_sound_processing;
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u8 has_virtual_dolby_surround;
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u8 has_dolby_pro_logic;
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u8 force_btsc;
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int radio;
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int opmode;
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int std;
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int mode;
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v4l2_std_id v4l2_std, detected_std;
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int nicam_on;
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int acb;
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int in_scart;
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int i2s_mode;
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int main, second; /* sound carrier */
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int input;
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u32 route_in;
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u32 route_out;
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/* v4l2 */
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int audmode;
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int rxsubchans;
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struct {
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/* volume cluster */
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struct v4l2_ctrl *volume;
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struct v4l2_ctrl *muted;
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};
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int scan_in_progress;
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/* thread */
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struct task_struct *kthread;
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wait_queue_head_t wq;
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unsigned int restart:1;
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unsigned int watch_stereo:1;
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#if IS_ENABLED(CONFIG_MEDIA_CONTROLLER)
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struct media_pad pads[MSP3400_NUM_PADS];
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#endif
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};
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static inline struct msp_state *to_state(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct msp_state, sd);
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}
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static inline struct msp_state *ctrl_to_state(struct v4l2_ctrl *ctrl)
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{
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return container_of(ctrl->handler, struct msp_state, hdl);
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}
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/* msp3400-driver.c */
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int msp_write_dem(struct i2c_client *client, int addr, int val);
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int msp_write_dsp(struct i2c_client *client, int addr, int val);
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int msp_read_dem(struct i2c_client *client, int addr);
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int msp_read_dsp(struct i2c_client *client, int addr);
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int msp_reset(struct i2c_client *client);
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void msp_set_scart(struct i2c_client *client, int in, int out);
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void msp_update_volume(struct msp_state *state);
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int msp_sleep(struct msp_state *state, int msec);
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/* msp3400-kthreads.c */
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const char *msp_standard_std_name(int std);
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void msp_set_audmode(struct i2c_client *client);
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int msp_detect_stereo(struct i2c_client *client);
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int msp3400c_thread(void *data);
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int msp3410d_thread(void *data);
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int msp34xxg_thread(void *data);
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void msp3400c_set_mode(struct i2c_client *client, int mode);
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void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2);
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#endif /* MSP3400_DRIVER_H */
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