1 // SPDX-License-Identifier: GPL-2.0-only
4  *  This sub-module of FM driver implements FM TX functionality.
14 int fm_tx_set_stereo_mono(struct fmdev *fmdev, u16 mode)  in fm_tx_set_stereo_mono()  argument
19 	if (fmdev->tx_data.aud_mode == mode)  in fm_tx_set_stereo_mono()
22 	fmdbg("stereo mode: %d\n", mode);  in fm_tx_set_stereo_mono()
24 	/* Set Stereo/Mono mode */  in fm_tx_set_stereo_mono()
25 	payload = (1 - mode);  in fm_tx_set_stereo_mono()
31 	fmdev->tx_data.aud_mode = mode;  in fm_tx_set_stereo_mono()
46 	/* Scroll mode */  in set_rds_text()
56 static int set_rds_data_mode(struct fmdev *fmdev, u8 mode)  in set_rds_data_mode()  argument
111 		/* Set RDS mode */  in fm_tx_set_rds_mode()
133 	fmdev->tx_data.rds.flag = rds_en_dis;  in fm_tx_set_rds_mode()
143 	if (fmdev->curr_fmmode != FM_MODE_TX)  in fm_tx_set_radio_text()
144 		return -EPERM;  in fm_tx_set_radio_text()
154 	/* Set RDS mode */  in fm_tx_set_radio_text()
171 	if (fmdev->curr_fmmode != FM_MODE_TX)  in fm_tx_set_af()
172 		return -EPERM;  in fm_tx_set_af()
176 	af = (af - 87500) / 100;  in fm_tx_set_af()
193 		return -EINVAL;  in fm_tx_set_region()
211 	fmdbg("tx: mute mode %d\n", mute_mode_toset);  in fm_tx_set_mute_mode()
225 	struct fmtx_data *tx = &fmdev->tx_data;  in set_audio_io()
230 	payload = tx->audio_io;  in set_audio_io()
243 	struct fmtx_data *tx = &fmdev->tx_data;  in enable_xmit()
263 	init_completion(&fmdev->maintask_comp);  in enable_xmit()
264 	timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,  in enable_xmit()
269 		return -ETIMEDOUT;  in enable_xmit()
272 	set_bit(FM_CORE_TX_XMITING, &fmdev->flag);  in enable_xmit()
273 	tx->xmit_state = new_xmit_state;  in enable_xmit()
282 	struct fmtx_data *tx = &fmdev->tx_data;  in fm_tx_set_pwr_lvl()
285 	if (fmdev->curr_fmmode != FM_MODE_TX)  in fm_tx_set_pwr_lvl()
286 		return -EPERM;  in fm_tx_set_pwr_lvl()
290 	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {  in fm_tx_set_pwr_lvl()
291 		tx->pwr_lvl = new_pwr_lvl;  in fm_tx_set_pwr_lvl()
302 	payload = (FM_PWR_LVL_HIGH - new_pwr_lvl);  in fm_tx_set_pwr_lvl()
309 	tx->pwr_lvl = new_pwr_lvl;  in fm_tx_set_pwr_lvl()
315  * Sets FM TX pre-emphasis filter value (OFF, 50us, or 75us)
320 	struct fmtx_data *tx = &fmdev->tx_data;  in fm_tx_set_preemph_filter()
324 	if (fmdev->curr_fmmode != FM_MODE_TX)  in fm_tx_set_preemph_filter()
325 		return -EPERM;  in fm_tx_set_preemph_filter()
344 	tx->preemph = payload;  in fm_tx_set_preemph_filter()
356 	if (fmdev->curr_fmmode != FM_MODE_TX)  in fm_tx_get_tune_cap_val()
357 		return -EPERM;  in fm_tx_get_tune_cap_val()
372 	struct fmtx_data *tx = &fmdev->tx_data;  in fm_tx_set_freq()
376 	if (test_bit(FM_CORE_TX_XMITING, &fmdev->flag)) {  in fm_tx_set_freq()
378 		clear_bit(FM_CORE_TX_XMITING, &fmdev->flag);  in fm_tx_set_freq()
388 	tx->tx_frq = (unsigned long)freq_to_set;  in fm_tx_set_freq()
389 	fmdbg("tx: freq_to_set %ld\n", (long int)tx->tx_frq);  in fm_tx_set_freq()
400 	fm_tx_set_pwr_lvl(fmdev, tx->pwr_lvl);  in fm_tx_set_freq()
401 	fm_tx_set_preemph_filter(fmdev, tx->preemph);  in fm_tx_set_freq()
403 	tx->audio_io = 0x01;	/* I2S */  in fm_tx_set_freq()
408 	tx->aud_mode = FM_STEREO_MODE;  in fm_tx_set_freq()
409 	tx->rds.flag = FM_RDS_DISABLE;  in fm_tx_set_freq()