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stm32g4: Add support for OPAMP

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Move implementations into common and split into v1 and v2.
This commit is contained in:
Ben Brewer
2020-08-18 14:50:15 +01:00
parent 8435287300
commit e923a6fe6a
11 changed files with 484 additions and 139 deletions
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112
lib/stm32/common/opamp_common_all.c Normal file
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/** @addtogroup opamp_file OPAMP peripheral API
* @ingroup peripheral_apis
*/
/*
* This file is part of the libopencm3 project.
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**@{*/
#include <libopencm3/stm32/opamp.h>
void opamp_enable(uint32_t base)
{
OPAMP_CSR(base) |= OPAMP_CSR_EN;
}
void opamp_disable(uint32_t base)
{
OPAMP_CSR(base) &= ~OPAMP_CSR_EN;
}
void opamp_lock(uint32_t base)
{
OPAMP_CSR(base) |= OPAMP_CSR_LOCK;
}
void opamp_set_calsel(uint32_t base, uint32_t calsel)
{
OPAMP_CSR(base) &= ~(OPAMP_CSR_CALSEL_MASK << OPAMP_CSR_CALSEL_SHIFT);
OPAMP_CSR(base) |= calsel << OPAMP_CSR_CALSEL_SHIFT;
}
void opamp_force_vp_enable(uint32_t base)
{
OPAMP_CSR(base) |= OPAMP_CSR_FORCE_VP;
}
void opamp_force_vp_disable(uint32_t base)
{
OPAMP_CSR(base) &= ~OPAMP_CSR_FORCE_VP;
}
void opamp_cal_enable(uint32_t base)
{
OPAMP_CSR(base) |= OPAMP_CSR_CALON;
}
void opamp_cal_disable(uint32_t base)
{
OPAMP_CSR(base) &= ~OPAMP_CSR_CALON;
}
void opamp_trimoffsetn_set(uint32_t base, uint32_t trim)
{
OPAMP_CSR(base) &= ~(OPAMP_CSR_TRIMOFFSETN_MASK
<< OPAMP_CSR_TRIMOFFSETN_SHIFT);
OPAMP_CSR(base) |= trim << OPAMP_CSR_TRIMOFFSETN_SHIFT;
}
void opamp_trimoffsetp_set(uint32_t base, uint32_t trim)
{
OPAMP_CSR(base) &= ~(OPAMP_CSR_TRIMOFFSETP_MASK
<< OPAMP_CSR_TRIMOFFSETP_SHIFT);
OPAMP_CSR(base) |= trim << OPAMP_CSR_TRIMOFFSETP_SHIFT;
}
void opamp_user_trim_enable(uint32_t base)
{
OPAMP_CSR(base) |= OPAMP_CSR_USER_TRIM;
}
void opamp_user_trim_disable(uint32_t base)
{
OPAMP_CSR(base) &= ~OPAMP_CSR_USER_TRIM;
}
void opamp_pga_gain_select(uint32_t base, uint32_t gain)
{
OPAMP_CSR(base) &= ~(OPAMP_CSR_PGA_GAIN_MASK
<< OPAMP_CSR_PGA_GAIN_SHIFT);
OPAMP_CSR(base) |= gain << OPAMP_CSR_PGA_GAIN_SHIFT;
}
void opamp_vp_select(uint32_t base, uint32_t vp)
{
OPAMP_CSR(base) &= ~(OPAMP_CSR_VP_SEL_MASK
<< OPAMP_CSR_VP_SEL_SHIFT);
OPAMP_CSR(base) |= vp << OPAMP_CSR_VP_SEL_SHIFT;
}
void opamp_vm_select(uint32_t base, uint32_t vm)
{
OPAMP_CSR(base) &= ~(OPAMP_CSR_VM_SEL_MASK
<< OPAMP_CSR_VM_SEL_SHIFT);
OPAMP_CSR(base) |= vm << OPAMP_CSR_VM_SEL_SHIFT;
}
/*@}*/

56
lib/stm32/common/opamp_common_v1.c Normal file
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/** @addtogroup opamp_file OPAMP peripheral API
* @ingroup peripheral_apis
*/
/*
* This file is part of the libopencm3 project.
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**@{*/
#include <libopencm3/stm32/opamp.h>
bool opamp_read_outcal(uint32_t base)
{
return (OPAMP_CSR(base) >> OPAMP_CSR_OUTCAL_SHIFT)
& OPAMP_CSR_OUTCAL_MASK;
}
void opamp_tcm_enable(uint32_t base)
{
OPAMP_CSR(base) |= OPAMP_CSR_TCM_EN;
}
void opamp_tcm_disable(uint32_t base)
{
OPAMP_CSR(base) &= ~OPAMP_CSR_TCM_EN;
}
void opamp_vps_select(uint32_t base, uint32_t vps)
{
OPAMP_CSR(base) &= ~(OPAMP_CSR_VPS_SEL_MASK
<< OPAMP_CSR_VPS_SEL_SHIFT);
OPAMP_CSR(base) |= vps << OPAMP_CSR_VPS_SEL_SHIFT;
}
void opamp_vms_select(uint32_t base, uint32_t vms)
{
OPAMP_CSR(base) &= ~(OPAMP_CSR_VMS_SEL_MASK
<< OPAMP_CSR_VMS_SEL_SHIFT);
OPAMP_CSR(base) |= vms << OPAMP_CSR_VMS_SEL_SHIFT;
}
/*@}*/

52
lib/stm32/common/opamp_common_v2.c Normal file
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@@ -0,0 +1,52 @@
/** @addtogroup opamp_file OPAMP peripheral API
* @ingroup peripheral_apis
*/
/*
* This file is part of the libopencm3 project.
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**@{*/
#include <libopencm3/stm32/opamp.h>
bool opamp_read_calout(uint32_t base)
{
return (OPAMP_CSR(base) >> OPAMP_CSR_CALOUT_SHIFT) &
OPAMP_CSR_CALOUT_MASK;
}
void opamp_high_speed_mode_enable(uint32_t base)
{
OPAMP_CSR(base) |= OPAMP_CSR_OPAHSM;
}
void opamp_high_speed_mode_disable(uint32_t base)
{
OPAMP_CSR(base) &= ~OPAMP_CSR_OPAHSM;
}
void opamp_output_set_internal(uint32_t base)
{
OPAMP_CSR(base) |= OPAMP_CSR_OPAINTOEN;
}
void opamp_output_set_external(uint32_t base)
{
OPAMP_CSR(base) &= ~OPAMP_CSR_OPAINTOEN;
}
/*@}*/