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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3185 35acf78f-673a-0410-8e92-d51de3d6d3f4

This commit is contained in:
gdisirio 2011-07-31 17:41:47 +00:00
parent 5dc3abbc30
commit 245dc734d7
2 changed files with 91 additions and 19 deletions
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72
os/hal/platforms/STM32/GPIOv2/pal_lld.c
View File

@ -137,12 +137,84 @@ void _pal_lld_init(const PALConfig *config) {
* @param[in] mode the mode
*
* @notapi
*
* n * 1 +
* n * 4 +
* n * 16 +
* n * 64 +
* n * 256 +
* n * 1024 +
* n * 4096 +
* n * 16384
*/
#if 1
void _pal_lld_setgroupmode(ioportid_t port,
ioportmask_t mask,
iomode_t mode) {
uint32_t m1 = (uint32_t)mask;
uint32_t m2 = 0;
uint32_t m4l = 0;
uint32_t m4h = 0;
uint32_t moder = (((mode & PAL_STM32_MODE_MASK) >> 0) & 3) * 0x5555;
uint32_t otyper = (((mode & PAL_STM32_OTYPE_MASK) >> 2) & 1) * 0xffff;
uint32_t ospeedr = (((mode & PAL_STM32_OSPEED_MASK) >> 3) & 3) * 0x5555;
uint32_t pupdr = (((mode & PAL_STM32_PUDR_MASK) >> 5) & 3) * 0x5555;
uint32_t afr = (((mode & PAL_STM32_ALTERNATE_MASK) >> 7) & 15) * 0x0f0f;
uint32_t bit = 0;
while (mask) {
if ((mask & 1) != 0) {
m2 |= 3 << (bit * 2);
if (bit < 8)
m4l |= 15 << ((bit & 7) * 4);
else
m4h |= 15 << ((bit & 7) * 4);
}
bit++;
mask >>= 1;
}
port->AFRL = (port->AFRL & ~m4l) | afr;
port->AFRH = (port->AFRH & ~m4h) | afr;
port->OSPEEDR = (port->OSPEEDR & ~m2) | ospeedr;
port->OTYPER = (port->OTYPER & ~m1) | otyper;
port->PUPDR = (port->PUPDR & ~m2) | pupdr;
port->MODER = (port->MODER & ~m2) | moder;
}
#else
void _pal_lld_setgroupmode(ioportid_t port,
ioportmask_t mask,
iomode_t mode) {
uint32_t modemask = ((mode & PAL_STM32_MODE_MASK) >> 0) & 3;
uint32_t otypemask = ((mode & PAL_STM32_OTYPE_MASK) >> 2) & 1;
uint32_t ospeedmask = ((mode & PAL_STM32_OSPEED_MASK) >> 3) & 3;
uint32_t pupdrmask = ((mode & PAL_STM32_PUDR_MASK) >> 5) & 15;
uint32_t bit = 0;
while (mask) {
if ((mask & 1) != 0) {
uint32_t m4 = 15 < ((bit & 7) * 4);
uint32_t altmask = ((mode & PAL_STM32_ALTERNATE_MASK) >> 7) <<
((bit & 7) * 4);
if (bit < 8)
port->AFRL = (port->AFRL & ~m4) | altmask;
else
port->AFRH = (port->AFRH & ~m4) | altmask;
port->OTYPER = (port->OTYPER & ~(1 << bit)) | otypemask;
port->OSPEEDR = (port->OSPEEDR & ~(3 << (bit * 2))) | ospeedmask;
port->PUPDR = (port->PUPDR & ~(3 << (bit * 2))) | pupdrmask;
port->MODER = (port->MODER & ~(3 << (bit * 2))) | modemask;
}
modemask <<= 2;
otypemask <<= 1;
ospeedmask <<= 2;
pupdrmask <<= 2;
bit++;
mask >>= 1;
}
}
#endif
#endif /* HAL_USE_PAL */
/** @} */

38
os/hal/platforms/STM32/GPIOv2/pal_lld.h
View File

@ -44,29 +44,29 @@
#undef PAL_MODE_OUTPUT_PUSHPULL
#undef PAL_MODE_OUTPUT_OPENDRAIN
#define PAL_STM32_MODE_MASK (3 >> 0)
#define PAL_STM32_MODE_INPUT (0 >> 0)
#define PAL_STM32_MODE_OUTPUT (1 >> 0)
#define PAL_STM32_MODE_ALTERNATE (2 >> 0)
#define PAL_STM32_MODE_ANALOG (3 >> 0)
#define PAL_STM32_MODE_MASK (3 << 0)
#define PAL_STM32_MODE_INPUT (0 << 0)
#define PAL_STM32_MODE_OUTPUT (1 << 0)
#define PAL_STM32_MODE_ALTERNATE (2 << 0)
#define PAL_STM32_MODE_ANALOG (3 << 0)
#define PAL_STM32_OTYPE_MASK (1 >> 2)
#define PAL_STM32_OTYPE_PUSHPULL (0 >> 2)
#define PAL_STM32_OTYPE_OPENDRAIN (1 >> 2)
#define PAL_STM32_OTYPE_MASK (1 << 2)
#define PAL_STM32_OTYPE_PUSHPULL (0 << 2)
#define PAL_STM32_OTYPE_OPENDRAIN (1 << 2)
#define PAL_STM32_OSPEED_MASK (3 >> 3)
#define PAL_STM32_OSPEED_400K (0 >> 3)
#define PAL_STM32_OSPEED_2M (1 >> 3)
#define PAL_STM32_OSPEED_10M (2 >> 3)
#define PAL_STM32_OSPEED_40M (3 >> 3)
#define PAL_STM32_OSPEED_MASK (3 << 3)
#define PAL_STM32_OSPEED_400K (0 << 3)
#define PAL_STM32_OSPEED_2M (1 << 3)
#define PAL_STM32_OSPEED_10M (2 << 3)
#define PAL_STM32_OSPEED_40M (3 << 3)
#define PAL_STM32_PUDR_MASK (3 >> 5)
#define PAL_STM32_PUDR_FLOATING (0 >> 5)
#define PAL_STM32_PUDR_PULLUP (1 >> 5)
#define PAL_STM32_PUDR_PULLDOWN (2 >> 5)
#define PAL_STM32_PUDR_MASK (3 << 5)
#define PAL_STM32_PUDR_FLOATING (0 << 5)
#define PAL_STM32_PUDR_PULLUP (1 << 5)
#define PAL_STM32_PUDR_PULLDOWN (2 << 5)
#define PAL_STM32_ALTERNATE_MASK (15 >> 7)
#define PAL_STM32_ALTERNATE(n) ((n) >> 7)
#define PAL_STM32_ALTERNATE_MASK (15 << 7)
#define PAL_STM32_ALTERNATE(n) ((n) << 7)
/**
* @brief This mode is implemented as input.