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587 lines
16 KiB
587 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* v4l2 driver for TEA5777 Philips AM/FM radio tuner chips |
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* |
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* Copyright (c) 2012 Hans de Goede <[email protected]> |
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* |
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* Based on the ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips: |
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* |
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* Copyright (c) 2004 Jaroslav Kysela <[email protected]> |
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*/ |
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#include <linux/delay.h> |
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#include <linux/init.h> |
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#include <linux/module.h> |
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#include <linux/sched.h> |
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#include <linux/slab.h> |
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#include <media/v4l2-device.h> |
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#include <media/v4l2-dev.h> |
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#include <media/v4l2-fh.h> |
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#include <media/v4l2-ioctl.h> |
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#include <media/v4l2-event.h> |
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#include "radio-tea5777.h" |
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MODULE_AUTHOR("Hans de Goede <[email protected]>"); |
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MODULE_DESCRIPTION("Routines for control of TEA5777 Philips AM/FM radio tuner chips"); |
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MODULE_LICENSE("GPL"); |
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#define TEA5777_FM_IF 150 /* kHz */ |
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#define TEA5777_FM_FREQ_STEP 50 /* kHz */ |
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#define TEA5777_AM_IF 21 /* kHz */ |
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#define TEA5777_AM_FREQ_STEP 1 /* kHz */ |
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/* Write reg, common bits */ |
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#define TEA5777_W_MUTE_MASK (1LL << 47) |
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#define TEA5777_W_MUTE_SHIFT 47 |
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#define TEA5777_W_AM_FM_MASK (1LL << 46) |
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#define TEA5777_W_AM_FM_SHIFT 46 |
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#define TEA5777_W_STB_MASK (1LL << 45) |
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#define TEA5777_W_STB_SHIFT 45 |
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#define TEA5777_W_IFCE_MASK (1LL << 29) |
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#define TEA5777_W_IFCE_SHIFT 29 |
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#define TEA5777_W_IFW_MASK (1LL << 28) |
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#define TEA5777_W_IFW_SHIFT 28 |
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#define TEA5777_W_HILO_MASK (1LL << 27) |
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#define TEA5777_W_HILO_SHIFT 27 |
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#define TEA5777_W_DBUS_MASK (1LL << 26) |
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#define TEA5777_W_DBUS_SHIFT 26 |
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#define TEA5777_W_INTEXT_MASK (1LL << 24) |
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#define TEA5777_W_INTEXT_SHIFT 24 |
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#define TEA5777_W_P1_MASK (1LL << 23) |
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#define TEA5777_W_P1_SHIFT 23 |
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#define TEA5777_W_P0_MASK (1LL << 22) |
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#define TEA5777_W_P0_SHIFT 22 |
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#define TEA5777_W_PEN1_MASK (1LL << 21) |
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#define TEA5777_W_PEN1_SHIFT 21 |
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#define TEA5777_W_PEN0_MASK (1LL << 20) |
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#define TEA5777_W_PEN0_SHIFT 20 |
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#define TEA5777_W_CHP0_MASK (1LL << 18) |
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#define TEA5777_W_CHP0_SHIFT 18 |
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#define TEA5777_W_DEEM_MASK (1LL << 17) |
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#define TEA5777_W_DEEM_SHIFT 17 |
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#define TEA5777_W_SEARCH_MASK (1LL << 7) |
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#define TEA5777_W_SEARCH_SHIFT 7 |
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#define TEA5777_W_PROGBLIM_MASK (1LL << 6) |
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#define TEA5777_W_PROGBLIM_SHIFT 6 |
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#define TEA5777_W_UPDWN_MASK (1LL << 5) |
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#define TEA5777_W_UPDWN_SHIFT 5 |
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#define TEA5777_W_SLEV_MASK (3LL << 3) |
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#define TEA5777_W_SLEV_SHIFT 3 |
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/* Write reg, FM specific bits */ |
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#define TEA5777_W_FM_PLL_MASK (0x1fffLL << 32) |
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#define TEA5777_W_FM_PLL_SHIFT 32 |
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#define TEA5777_W_FM_FREF_MASK (0x03LL << 30) |
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#define TEA5777_W_FM_FREF_SHIFT 30 |
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#define TEA5777_W_FM_FREF_VALUE 0LL /* 50k steps, 150k IF */ |
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#define TEA5777_W_FM_FORCEMONO_MASK (1LL << 15) |
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#define TEA5777_W_FM_FORCEMONO_SHIFT 15 |
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#define TEA5777_W_FM_SDSOFF_MASK (1LL << 14) |
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#define TEA5777_W_FM_SDSOFF_SHIFT 14 |
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#define TEA5777_W_FM_DOFF_MASK (1LL << 13) |
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#define TEA5777_W_FM_DOFF_SHIFT 13 |
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#define TEA5777_W_FM_STEP_MASK (3LL << 1) |
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#define TEA5777_W_FM_STEP_SHIFT 1 |
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/* Write reg, AM specific bits */ |
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#define TEA5777_W_AM_PLL_MASK (0x7ffLL << 34) |
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#define TEA5777_W_AM_PLL_SHIFT 34 |
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#define TEA5777_W_AM_AGCRF_MASK (1LL << 33) |
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#define TEA5777_W_AM_AGCRF_SHIFT 33 |
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#define TEA5777_W_AM_AGCIF_MASK (1LL << 32) |
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#define TEA5777_W_AM_AGCIF_SHIFT 32 |
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#define TEA5777_W_AM_MWLW_MASK (1LL << 31) |
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#define TEA5777_W_AM_MWLW_SHIFT 31 |
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#define TEA5777_W_AM_LW 0LL |
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#define TEA5777_W_AM_MW 1LL |
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#define TEA5777_W_AM_LNA_MASK (1LL << 30) |
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#define TEA5777_W_AM_LNA_SHIFT 30 |
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#define TEA5777_W_AM_PEAK_MASK (1LL << 25) |
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#define TEA5777_W_AM_PEAK_SHIFT 25 |
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#define TEA5777_W_AM_RFB_MASK (1LL << 16) |
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#define TEA5777_W_AM_RFB_SHIFT 16 |
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#define TEA5777_W_AM_CALLIGN_MASK (1LL << 15) |
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#define TEA5777_W_AM_CALLIGN_SHIFT 15 |
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#define TEA5777_W_AM_CBANK_MASK (0x7fLL << 8) |
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#define TEA5777_W_AM_CBANK_SHIFT 8 |
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#define TEA5777_W_AM_DELAY_MASK (1LL << 2) |
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#define TEA5777_W_AM_DELAY_SHIFT 2 |
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#define TEA5777_W_AM_STEP_MASK (1LL << 1) |
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#define TEA5777_W_AM_STEP_SHIFT 1 |
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/* Read reg, common bits */ |
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#define TEA5777_R_LEVEL_MASK (0x0f << 17) |
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#define TEA5777_R_LEVEL_SHIFT 17 |
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#define TEA5777_R_SFOUND_MASK (0x01 << 16) |
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#define TEA5777_R_SFOUND_SHIFT 16 |
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#define TEA5777_R_BLIM_MASK (0x01 << 15) |
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#define TEA5777_R_BLIM_SHIFT 15 |
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/* Read reg, FM specific bits */ |
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#define TEA5777_R_FM_STEREO_MASK (0x01 << 21) |
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#define TEA5777_R_FM_STEREO_SHIFT 21 |
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#define TEA5777_R_FM_PLL_MASK 0x1fff |
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#define TEA5777_R_FM_PLL_SHIFT 0 |
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enum { BAND_FM, BAND_AM }; |
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static const struct v4l2_frequency_band bands[] = { |
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{ |
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.type = V4L2_TUNER_RADIO, |
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.index = 0, |
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.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | |
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V4L2_TUNER_CAP_FREQ_BANDS | |
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V4L2_TUNER_CAP_HWSEEK_BOUNDED | |
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V4L2_TUNER_CAP_HWSEEK_PROG_LIM, |
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.rangelow = 76000 * 16, |
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.rangehigh = 108000 * 16, |
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.modulation = V4L2_BAND_MODULATION_FM, |
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}, |
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{ |
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.type = V4L2_TUNER_RADIO, |
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.index = 1, |
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.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS | |
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V4L2_TUNER_CAP_HWSEEK_BOUNDED | |
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V4L2_TUNER_CAP_HWSEEK_PROG_LIM, |
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.rangelow = 530 * 16, |
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.rangehigh = 1710 * 16, |
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.modulation = V4L2_BAND_MODULATION_AM, |
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}, |
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}; |
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static u32 tea5777_freq_to_v4l2_freq(struct radio_tea5777 *tea, u32 freq) |
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{ |
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switch (tea->band) { |
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case BAND_FM: |
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return (freq * TEA5777_FM_FREQ_STEP + TEA5777_FM_IF) * 16; |
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case BAND_AM: |
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return (freq * TEA5777_AM_FREQ_STEP + TEA5777_AM_IF) * 16; |
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} |
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return 0; /* Never reached */ |
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} |
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int radio_tea5777_set_freq(struct radio_tea5777 *tea) |
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{ |
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u32 freq; |
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int res; |
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freq = clamp(tea->freq, bands[tea->band].rangelow, |
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bands[tea->band].rangehigh); |
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freq = (freq + 8) / 16; /* to kHz */ |
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switch (tea->band) { |
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case BAND_FM: |
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tea->write_reg &= ~TEA5777_W_AM_FM_MASK; |
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freq = (freq - TEA5777_FM_IF) / TEA5777_FM_FREQ_STEP; |
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tea->write_reg &= ~TEA5777_W_FM_PLL_MASK; |
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tea->write_reg |= (u64)freq << TEA5777_W_FM_PLL_SHIFT; |
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tea->write_reg &= ~TEA5777_W_FM_FREF_MASK; |
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tea->write_reg |= TEA5777_W_FM_FREF_VALUE << |
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TEA5777_W_FM_FREF_SHIFT; |
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tea->write_reg &= ~TEA5777_W_FM_FORCEMONO_MASK; |
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if (tea->audmode == V4L2_TUNER_MODE_MONO) |
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tea->write_reg |= 1LL << TEA5777_W_FM_FORCEMONO_SHIFT; |
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break; |
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case BAND_AM: |
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tea->write_reg &= ~TEA5777_W_AM_FM_MASK; |
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tea->write_reg |= (1LL << TEA5777_W_AM_FM_SHIFT); |
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freq = (freq - TEA5777_AM_IF) / TEA5777_AM_FREQ_STEP; |
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tea->write_reg &= ~TEA5777_W_AM_PLL_MASK; |
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tea->write_reg |= (u64)freq << TEA5777_W_AM_PLL_SHIFT; |
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tea->write_reg &= ~TEA5777_W_AM_AGCRF_MASK; |
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tea->write_reg &= ~TEA5777_W_AM_AGCRF_MASK; |
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tea->write_reg &= ~TEA5777_W_AM_MWLW_MASK; |
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tea->write_reg |= TEA5777_W_AM_MW << TEA5777_W_AM_MWLW_SHIFT; |
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tea->write_reg &= ~TEA5777_W_AM_LNA_MASK; |
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tea->write_reg |= 1LL << TEA5777_W_AM_LNA_SHIFT; |
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tea->write_reg &= ~TEA5777_W_AM_PEAK_MASK; |
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tea->write_reg |= 1LL << TEA5777_W_AM_PEAK_SHIFT; |
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tea->write_reg &= ~TEA5777_W_AM_CALLIGN_MASK; |
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break; |
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} |
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res = tea->ops->write_reg(tea, tea->write_reg); |
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if (res) |
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return res; |
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tea->needs_write = false; |
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tea->read_reg = -1; |
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tea->freq = tea5777_freq_to_v4l2_freq(tea, freq); |
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return 0; |
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} |
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static int radio_tea5777_update_read_reg(struct radio_tea5777 *tea, int wait) |
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{ |
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int res; |
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if (tea->read_reg != -1) |
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return 0; |
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if (tea->write_before_read && tea->needs_write) { |
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res = radio_tea5777_set_freq(tea); |
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if (res) |
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return res; |
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} |
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if (wait) { |
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if (schedule_timeout_interruptible(msecs_to_jiffies(wait))) |
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return -ERESTARTSYS; |
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} |
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res = tea->ops->read_reg(tea, &tea->read_reg); |
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if (res) |
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return res; |
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tea->needs_write = true; |
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return 0; |
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} |
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/* |
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* Linux Video interface |
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*/ |
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static int vidioc_querycap(struct file *file, void *priv, |
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struct v4l2_capability *v) |
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{ |
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struct radio_tea5777 *tea = video_drvdata(file); |
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strscpy(v->driver, tea->v4l2_dev->name, sizeof(v->driver)); |
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strscpy(v->card, tea->card, sizeof(v->card)); |
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strlcat(v->card, " TEA5777", sizeof(v->card)); |
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strscpy(v->bus_info, tea->bus_info, sizeof(v->bus_info)); |
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return 0; |
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} |
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static int vidioc_enum_freq_bands(struct file *file, void *priv, |
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struct v4l2_frequency_band *band) |
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{ |
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struct radio_tea5777 *tea = video_drvdata(file); |
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if (band->tuner != 0 || band->index >= ARRAY_SIZE(bands) || |
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(!tea->has_am && band->index == BAND_AM)) |
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return -EINVAL; |
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*band = bands[band->index]; |
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return 0; |
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} |
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static int vidioc_g_tuner(struct file *file, void *priv, |
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struct v4l2_tuner *v) |
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{ |
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struct radio_tea5777 *tea = video_drvdata(file); |
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int res; |
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if (v->index > 0) |
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return -EINVAL; |
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res = radio_tea5777_update_read_reg(tea, 0); |
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if (res) |
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return res; |
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memset(v, 0, sizeof(*v)); |
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if (tea->has_am) |
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strscpy(v->name, "AM/FM", sizeof(v->name)); |
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else |
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strscpy(v->name, "FM", sizeof(v->name)); |
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v->type = V4L2_TUNER_RADIO; |
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v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | |
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V4L2_TUNER_CAP_FREQ_BANDS | |
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V4L2_TUNER_CAP_HWSEEK_BOUNDED | |
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V4L2_TUNER_CAP_HWSEEK_PROG_LIM; |
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v->rangelow = tea->has_am ? bands[BAND_AM].rangelow : |
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bands[BAND_FM].rangelow; |
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v->rangehigh = bands[BAND_FM].rangehigh; |
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if (tea->band == BAND_FM && |
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(tea->read_reg & TEA5777_R_FM_STEREO_MASK)) |
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v->rxsubchans = V4L2_TUNER_SUB_STEREO; |
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else |
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v->rxsubchans = V4L2_TUNER_SUB_MONO; |
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v->audmode = tea->audmode; |
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/* shift - 12 to convert 4-bits (0-15) scale to 16-bits (0-65535) */ |
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v->signal = (tea->read_reg & TEA5777_R_LEVEL_MASK) >> |
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(TEA5777_R_LEVEL_SHIFT - 12); |
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/* Invalidate read_reg, so that next call we return up2date signal */ |
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tea->read_reg = -1; |
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return 0; |
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} |
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static int vidioc_s_tuner(struct file *file, void *priv, |
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const struct v4l2_tuner *v) |
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{ |
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struct radio_tea5777 *tea = video_drvdata(file); |
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u32 orig_audmode = tea->audmode; |
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if (v->index) |
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return -EINVAL; |
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tea->audmode = v->audmode; |
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if (tea->audmode > V4L2_TUNER_MODE_STEREO) |
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tea->audmode = V4L2_TUNER_MODE_STEREO; |
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if (tea->audmode != orig_audmode && tea->band == BAND_FM) |
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return radio_tea5777_set_freq(tea); |
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return 0; |
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} |
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static int vidioc_g_frequency(struct file *file, void *priv, |
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struct v4l2_frequency *f) |
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{ |
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struct radio_tea5777 *tea = video_drvdata(file); |
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if (f->tuner != 0) |
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return -EINVAL; |
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f->type = V4L2_TUNER_RADIO; |
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f->frequency = tea->freq; |
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return 0; |
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} |
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static int vidioc_s_frequency(struct file *file, void *priv, |
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const struct v4l2_frequency *f) |
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{ |
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struct radio_tea5777 *tea = video_drvdata(file); |
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if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) |
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return -EINVAL; |
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if (tea->has_am && f->frequency < (20000 * 16)) |
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tea->band = BAND_AM; |
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else |
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tea->band = BAND_FM; |
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tea->freq = f->frequency; |
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return radio_tea5777_set_freq(tea); |
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} |
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static int vidioc_s_hw_freq_seek(struct file *file, void *fh, |
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const struct v4l2_hw_freq_seek *a) |
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{ |
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struct radio_tea5777 *tea = video_drvdata(file); |
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unsigned long timeout; |
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u32 rangelow = a->rangelow; |
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u32 rangehigh = a->rangehigh; |
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int i, res, spacing; |
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u32 orig_freq; |
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if (a->tuner || a->wrap_around) |
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return -EINVAL; |
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if (file->f_flags & O_NONBLOCK) |
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return -EWOULDBLOCK; |
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if (rangelow || rangehigh) { |
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for (i = 0; i < ARRAY_SIZE(bands); i++) { |
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if (i == BAND_AM && !tea->has_am) |
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continue; |
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if (bands[i].rangelow >= rangelow && |
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bands[i].rangehigh <= rangehigh) |
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break; |
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} |
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if (i == ARRAY_SIZE(bands)) |
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return -EINVAL; /* No matching band found */ |
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tea->band = i; |
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if (tea->freq < rangelow || tea->freq > rangehigh) { |
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tea->freq = clamp(tea->freq, rangelow, |
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rangehigh); |
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res = radio_tea5777_set_freq(tea); |
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if (res) |
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return res; |
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} |
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} else { |
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rangelow = bands[tea->band].rangelow; |
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rangehigh = bands[tea->band].rangehigh; |
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} |
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spacing = (tea->band == BAND_AM) ? (5 * 16) : (200 * 16); /* kHz */ |
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orig_freq = tea->freq; |
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tea->write_reg |= TEA5777_W_PROGBLIM_MASK; |
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if (tea->seek_rangelow != rangelow) { |
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tea->write_reg &= ~TEA5777_W_UPDWN_MASK; |
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tea->freq = rangelow; |
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res = radio_tea5777_set_freq(tea); |
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if (res) |
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goto leave; |
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tea->seek_rangelow = rangelow; |
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} |
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if (tea->seek_rangehigh != rangehigh) { |
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tea->write_reg |= TEA5777_W_UPDWN_MASK; |
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tea->freq = rangehigh; |
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res = radio_tea5777_set_freq(tea); |
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if (res) |
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goto leave; |
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tea->seek_rangehigh = rangehigh; |
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} |
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tea->write_reg &= ~TEA5777_W_PROGBLIM_MASK; |
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tea->write_reg |= TEA5777_W_SEARCH_MASK; |
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if (a->seek_upward) { |
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tea->write_reg |= TEA5777_W_UPDWN_MASK; |
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tea->freq = orig_freq + spacing; |
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} else { |
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tea->write_reg &= ~TEA5777_W_UPDWN_MASK; |
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tea->freq = orig_freq - spacing; |
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} |
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res = radio_tea5777_set_freq(tea); |
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if (res) |
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goto leave; |
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timeout = jiffies + msecs_to_jiffies(5000); |
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for (;;) { |
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if (time_after(jiffies, timeout)) { |
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res = -ENODATA; |
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break; |
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} |
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res = radio_tea5777_update_read_reg(tea, 100); |
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if (res) |
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break; |
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|
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/* |
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* Note we use tea->freq to track how far we've searched sofar |
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* this is necessary to ensure we continue seeking at the right |
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* point, in the write_before_read case. |
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*/ |
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tea->freq = (tea->read_reg & TEA5777_R_FM_PLL_MASK); |
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tea->freq = tea5777_freq_to_v4l2_freq(tea, tea->freq); |
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if ((tea->read_reg & TEA5777_R_SFOUND_MASK)) { |
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tea->write_reg &= ~TEA5777_W_SEARCH_MASK; |
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return 0; |
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} |
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if (tea->read_reg & TEA5777_R_BLIM_MASK) { |
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res = -ENODATA; |
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break; |
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} |
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|
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/* Force read_reg update */ |
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tea->read_reg = -1; |
|
} |
|
leave: |
|
tea->write_reg &= ~TEA5777_W_PROGBLIM_MASK; |
|
tea->write_reg &= ~TEA5777_W_SEARCH_MASK; |
|
tea->freq = orig_freq; |
|
radio_tea5777_set_freq(tea); |
|
return res; |
|
} |
|
|
|
static int tea575x_s_ctrl(struct v4l2_ctrl *c) |
|
{ |
|
struct radio_tea5777 *tea = |
|
container_of(c->handler, struct radio_tea5777, ctrl_handler); |
|
|
|
switch (c->id) { |
|
case V4L2_CID_AUDIO_MUTE: |
|
if (c->val) |
|
tea->write_reg |= TEA5777_W_MUTE_MASK; |
|
else |
|
tea->write_reg &= ~TEA5777_W_MUTE_MASK; |
|
|
|
return radio_tea5777_set_freq(tea); |
|
} |
|
|
|
return -EINVAL; |
|
} |
|
|
|
static const struct v4l2_file_operations tea575x_fops = { |
|
.unlocked_ioctl = video_ioctl2, |
|
.open = v4l2_fh_open, |
|
.release = v4l2_fh_release, |
|
.poll = v4l2_ctrl_poll, |
|
}; |
|
|
|
static const struct v4l2_ioctl_ops tea575x_ioctl_ops = { |
|
.vidioc_querycap = vidioc_querycap, |
|
.vidioc_g_tuner = vidioc_g_tuner, |
|
.vidioc_s_tuner = vidioc_s_tuner, |
|
.vidioc_g_frequency = vidioc_g_frequency, |
|
.vidioc_s_frequency = vidioc_s_frequency, |
|
.vidioc_s_hw_freq_seek = vidioc_s_hw_freq_seek, |
|
.vidioc_enum_freq_bands = vidioc_enum_freq_bands, |
|
.vidioc_log_status = v4l2_ctrl_log_status, |
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
|
}; |
|
|
|
static const struct video_device tea575x_radio = { |
|
.ioctl_ops = &tea575x_ioctl_ops, |
|
.release = video_device_release_empty, |
|
}; |
|
|
|
static const struct v4l2_ctrl_ops tea575x_ctrl_ops = { |
|
.s_ctrl = tea575x_s_ctrl, |
|
}; |
|
|
|
int radio_tea5777_init(struct radio_tea5777 *tea, struct module *owner) |
|
{ |
|
int res; |
|
|
|
tea->write_reg = (1LL << TEA5777_W_IFCE_SHIFT) | |
|
(1LL << TEA5777_W_IFW_SHIFT) | |
|
(1LL << TEA5777_W_INTEXT_SHIFT) | |
|
(1LL << TEA5777_W_CHP0_SHIFT) | |
|
(1LL << TEA5777_W_SLEV_SHIFT); |
|
tea->freq = 90500 * 16; /* 90.5Mhz default */ |
|
tea->audmode = V4L2_TUNER_MODE_STEREO; |
|
res = radio_tea5777_set_freq(tea); |
|
if (res) { |
|
v4l2_err(tea->v4l2_dev, "can't set initial freq (%d)\n", res); |
|
return res; |
|
} |
|
|
|
tea->vd = tea575x_radio; |
|
video_set_drvdata(&tea->vd, tea); |
|
mutex_init(&tea->mutex); |
|
strscpy(tea->vd.name, tea->v4l2_dev->name, sizeof(tea->vd.name)); |
|
tea->vd.lock = &tea->mutex; |
|
tea->vd.v4l2_dev = tea->v4l2_dev; |
|
tea->vd.device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO | |
|
V4L2_CAP_HW_FREQ_SEEK; |
|
tea->fops = tea575x_fops; |
|
tea->fops.owner = owner; |
|
tea->vd.fops = &tea->fops; |
|
|
|
tea->vd.ctrl_handler = &tea->ctrl_handler; |
|
v4l2_ctrl_handler_init(&tea->ctrl_handler, 1); |
|
v4l2_ctrl_new_std(&tea->ctrl_handler, &tea575x_ctrl_ops, |
|
V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); |
|
res = tea->ctrl_handler.error; |
|
if (res) { |
|
v4l2_err(tea->v4l2_dev, "can't initialize controls\n"); |
|
v4l2_ctrl_handler_free(&tea->ctrl_handler); |
|
return res; |
|
} |
|
v4l2_ctrl_handler_setup(&tea->ctrl_handler); |
|
|
|
res = video_register_device(&tea->vd, VFL_TYPE_RADIO, -1); |
|
if (res) { |
|
v4l2_err(tea->v4l2_dev, "can't register video device!\n"); |
|
v4l2_ctrl_handler_free(tea->vd.ctrl_handler); |
|
return res; |
|
} |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL_GPL(radio_tea5777_init); |
|
|
|
void radio_tea5777_exit(struct radio_tea5777 *tea) |
|
{ |
|
video_unregister_device(&tea->vd); |
|
v4l2_ctrl_handler_free(tea->vd.ctrl_handler); |
|
} |
|
EXPORT_SYMBOL_GPL(radio_tea5777_exit);
|
|
|