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support up to 8 channels per timer. TODO: port kl_dumpgpio.c to kinetis

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This commit is contained in:
kfazz 2016-06-09 23:34:24 -04:00
parent 3cc843480b
commit 6e9df2adf7
1 changed files with 24 additions and 3 deletions
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27
arch/arm/src/kinetis/kinetis_pwm.c
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@ -88,7 +88,7 @@
# ifdef CONFIG_DEBUG_VERBOSE
# define pwmvdbg vdbg
# define pwmllvdbg llvdbg
# define pwm_dumpgpio(p,m) kinetis_dumpgpio(p,m)
# define pwm_dumpgpio(p,m) /* kinetis_dumpgpio(p,m) */
# else
# define pwmlldbg(x...)
# define pwmllvdbg(x...)
@ -501,6 +501,19 @@ static int pwm_timer(FAR struct kinetis_pwmtimer_s *priv,
}
break;
case 6: /* PWM Mode configuration: Channel 6 */
{
pwm_putreg(priv, KINETIS_FTM_C6SC_OFFSET, FTM_CSC_MSB | FTM_CSC_ELSB);
pwm_putreg(priv, KINETIS_FTM_C6V_OFFSET, (uint16_t) cv);
}
break;
case 7: /* PWM Mode configuration: Channel 7 */
{
pwm_putreg(priv, KINETIS_FTM_C7SC_OFFSET, FTM_CSC_MSB | FTM_CSC_ELSB);
pwm_putreg(priv, KINETIS_FTM_C7V_OFFSET, (uint16_t) cv);
}
break;
default:
pwmdbg("No such channel: %d\n", priv->channel);
return -EINVAL;
@ -558,7 +571,7 @@ static int pwm_setup(FAR struct pwm_lowerhalf_s *dev)
/* Configure the PWM output pin, but do not start the timer yet */
kinetis_configgpio(priv->pincfg);
kinetis_pinconfig(priv->pincfg);
pwm_dumpgpio(priv->pincfg, "PWM setup");
return OK;
}
@ -594,7 +607,7 @@ static int pwm_shutdown(FAR struct pwm_lowerhalf_s *dev)
pincfg = (priv->pincfg & ~(_PIN_MODE_MASK));
pincfg |= GPIO_INPUT;
kinetis_configgpio(pincfg);
kinetis_pinconfig(pincfg);
return OK;
}
@ -685,6 +698,14 @@ static int pwm_stop(FAR struct pwm_lowerhalf_s *dev)
pwm_putreg(priv, KINETIS_FTM_C5V_OFFSET, 0);
break;
case 6:
pwm_putreg(priv, KINETIS_FTM_C6V_OFFSET, 0);
break;
case 7:
pwm_putreg(priv, KINETIS_FTM_C7V_OFFSET, 0);
break;
default:
pwmdbg("No such channel: %d\n", priv->channel);
return -EINVAL;