Cross Reference: /src/sys/arch/arm/broadcom/bcm2835

Lines Matching refs:pwm
92 	{ .compat = "brcm,bcm2835-pwm" },
165 	/* The PWM hardware can be used by vcaudio if the
183 	struct bcm_pwm_channel *pwm;
193 	pwm = &sc->sc_channels[num];
196 	if (pwm->inuse)
197 		pwm = NULL;
199 		pwm->inuse = true;
202 	if (pwm) {
203 		pwm->datsave = PWM_READ(pwm->sc, pwm->dat);
204 		pwm->ctlsave = PWM_READ(pwm->sc, PWM_CTL);
205 		pwm->rngsave = PWM_READ(pwm->sc, pwm->rng);
208 	return pwm;
212 bcm_pwm_free(struct bcm_pwm_channel *pwm)
214 	struct bcm2835pwm_softc *sc = pwm->sc;
216 	KASSERT(pwm->inuse);
218 	PWM_WRITE(pwm->sc, pwm->rng, pwm->rngsave);
219 	PWM_WRITE(pwm->sc, PWM_CTL, pwm->ctlsave & ~PWM_CTL_WRITEZERO);
220 	PWM_WRITE(pwm->sc, pwm->dat, pwm->datsave);
223 	pwm->inuse = false;
228 bcm_pwm_control(struct bcm_pwm_channel *pwm, uint32_t ctl, uint32_t rng)
230 	struct bcm2835pwm_softc *sc = pwm->sc;
233 	KASSERT(pwm->inuse);
238 	w = PWM_READ(pwm->sc, PWM_CTL);
239 	ctl = (w & ~pwm->ctlmask) | __SHIFTIN(ctl, pwm->ctlmask);
246 	PWM_WRITE(sc, pwm->rng, rng);
251 bcm_pwm_status(struct bcm_pwm_channel *pwm)
262 	w = PWM_READ(pwm->sc, PWM_STA);
263 	PWM_WRITE(pwm->sc, PWM_STA, w &
264 		(pwm->stamask | pwm->gapomask | common));
266 	w = __SHIFTIN(__SHIFTOUT(w, pwm->stamask), PWM_STA_STA)
267 	  | __SHIFTIN(__SHIFTOUT(w, pwm->gapomask), PWM_STA_GAPO)
292 bcm_pwm_write(struct bcm_pwm_channel *pwm, uint32_t *data1, uint32_t *data2,
295 	struct bcm2835pwm_softc *sc = pwm->sc;
300 	KASSERT(pwm->inuse);
317 bcm_pwm_set(struct bcm_pwm_channel *pwm, uint32_t w)
319 	struct bcm2835pwm_softc *sc = pwm->sc;
321 	PWM_WRITE(sc, pwm->dat, w);
325 bcm_pwm_flush(struct bcm_pwm_channel *pwm)
327 	struct bcm2835pwm_softc *sc = pwm->sc;
333 bcm_pwm_dma_enable(struct bcm_pwm_channel *pwm, bool enable)
335 	struct bcm2835pwm_softc *sc = pwm->sc;
353 bcm_pwm_dma_address(struct bcm_pwm_channel *pwm)
355 	struct bcm2835pwm_softc *sc = pwm->sc;
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