// SPDX-License-Identifier: GPL-2.0-only /* * Driver for the Texas Instruments WL1273 FM radio. * * Copyright (C) 2011 Nokia Corporation * Author: Matti J. Aaltonen <[email protected]> */ #include <linux/delay.h> #include <linux/firmware.h> #include <linux/interrupt.h> #include <linux/mfd/wl1273-core.h> #include <linux/slab.h> #include <linux/module.h> #include <media/v4l2-common.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-ioctl.h> #define DRIVER_DESC … #define WL1273_POWER_SET_OFF … #define WL1273_POWER_SET_FM … #define WL1273_POWER_SET_RDS … #define WL1273_POWER_SET_RETENTION … #define WL1273_PUPD_SET_OFF … #define WL1273_PUPD_SET_ON … #define WL1273_PUPD_SET_RETENTION … #define WL1273_FREQ(x) … #define WL1273_INV_FREQ(x) … /* * static int radio_nr - The number of the radio device * * The default is 0. */ static int radio_nr; module_param(radio_nr, int, 0); MODULE_PARM_DESC(…) …; struct wl1273_device { … }; #define WL1273_IRQ_MASK … /* * static unsigned int rds_buf - the number of RDS buffer blocks used. * * The default number is 100. */ static unsigned int rds_buf = …; module_param(rds_buf, uint, 0); MODULE_PARM_DESC(…) …; static int wl1273_fm_write_fw(struct wl1273_core *core, __u8 *fw, int len) { … } #define WL1273_FIFO_HAS_DATA(status) … #define WL1273_RDS_CORRECTABLE_ERROR … #define WL1273_RDS_UNCORRECTABLE_ERROR … static int wl1273_fm_rds(struct wl1273_device *radio) { … } static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id) { … } static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq) { … } static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq) { … } static int wl1273_fm_get_freq(struct wl1273_device *radio) { … } /** * wl1273_fm_upload_firmware_patch() - Upload the firmware. * @radio: A pointer to the device struct. * * The firmware file consists of arrays of bytes where the first byte * gives the array length. The first byte in the file gives the * number of these arrays. */ static int wl1273_fm_upload_firmware_patch(struct wl1273_device *radio) { … } static int wl1273_fm_stop(struct wl1273_device *radio) { … } static int wl1273_fm_start(struct wl1273_device *radio, int new_mode) { … } static int wl1273_fm_suspend(struct wl1273_device *radio) { … } static int wl1273_fm_set_mode(struct wl1273_device *radio, int mode) { … } static int wl1273_fm_set_seek(struct wl1273_device *radio, unsigned int wrap_around, unsigned int seek_upward, int level) { … } /** * wl1273_fm_get_tx_ctune() - Get the TX tuning capacitor value. * @radio: A pointer to the device struct. */ static unsigned int wl1273_fm_get_tx_ctune(struct wl1273_device *radio) { … } /** * wl1273_fm_set_preemphasis() - Set the TX pre-emphasis value. * @radio: A pointer to the device struct. * @preemphasis: The new pre-amphasis value. * * Possible pre-emphasis values are: V4L2_PREEMPHASIS_DISABLED, * V4L2_PREEMPHASIS_50_uS and V4L2_PREEMPHASIS_75_uS. */ static int wl1273_fm_set_preemphasis(struct wl1273_device *radio, unsigned int preemphasis) { … } static int wl1273_fm_rds_on(struct wl1273_device *radio) { … } static int wl1273_fm_rds_off(struct wl1273_device *radio) { … } static int wl1273_fm_set_rds(struct wl1273_device *radio, unsigned int new_mode) { … } static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { … } static __poll_t wl1273_fm_fops_poll(struct file *file, struct poll_table_struct *pts) { … } static int wl1273_fm_fops_open(struct file *file) { … } static int wl1273_fm_fops_release(struct file *file) { … } static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } static const struct v4l2_file_operations wl1273_fops = …; static int wl1273_fm_vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *capability) { … } static int wl1273_fm_vidioc_g_input(struct file *file, void *priv, unsigned int *i) { … } static int wl1273_fm_vidioc_s_input(struct file *file, void *priv, unsigned int i) { … } /** * wl1273_fm_set_tx_power() - Set the transmission power value. * @radio: A pointer to the device struct. * @power: The new power value. */ static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) { … } #define WL1273_SPACING_50kHz … #define WL1273_SPACING_100kHz … #define WL1273_SPACING_200kHz … static int wl1273_fm_tx_set_spacing(struct wl1273_device *radio, unsigned int spacing) { … } static int wl1273_fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { … } #define WL1273_MUTE_SOFT_ENABLE … #define WL1273_MUTE_AC … #define WL1273_MUTE_HARD_LEFT … #define WL1273_MUTE_HARD_RIGHT … #define WL1273_MUTE_SOFT_FORCE … static inline struct wl1273_device *to_radio(struct v4l2_ctrl *ctrl) { … } static int wl1273_fm_vidioc_s_ctrl(struct v4l2_ctrl *ctrl) { … } static int wl1273_fm_vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *audio) { … } static int wl1273_fm_vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *audio) { … } #define WL1273_RDS_NOT_SYNCHRONIZED … #define WL1273_RDS_SYNCHRONIZED … static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *tuner) { … } static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *tuner) { … } static int wl1273_fm_vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *freq) { … } static int wl1273_fm_vidioc_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *freq) { … } #define WL1273_DEFAULT_SEEK_LEVEL … static int wl1273_fm_vidioc_s_hw_freq_seek(struct file *file, void *priv, const struct v4l2_hw_freq_seek *seek) { … } static int wl1273_fm_vidioc_s_modulator(struct file *file, void *priv, const struct v4l2_modulator *modulator) { … } static int wl1273_fm_vidioc_g_modulator(struct file *file, void *priv, struct v4l2_modulator *modulator) { … } static int wl1273_fm_vidioc_log_status(struct file *file, void *priv) { … } static void wl1273_vdev_release(struct video_device *dev) { … } static const struct v4l2_ctrl_ops wl1273_ctrl_ops = …; static const struct v4l2_ioctl_ops wl1273_ioctl_ops = …; static const struct video_device wl1273_viddev_template = …; static void wl1273_fm_radio_remove(struct platform_device *pdev) { … } static int wl1273_fm_radio_probe(struct platform_device *pdev) { … } static struct platform_driver wl1273_fm_radio_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…); MODULE_LICENSE(…) …; MODULE_ALIAS(…) …;
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