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Cleanup nRF51 PAL driver

This commit is contained in:
Stephen Caudle 2015-07-23 23:39:05 -04:00
parent e82536b815
commit f91f5a5c57
2 changed files with 71 additions and 101 deletions
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73
os/hal/ports/NRF51/NRF51822/pal_lld.c
View File

@ -43,36 +43,72 @@
/* Driver local functions. */
/*===========================================================================*/
void _pal_lld_setpadmode(uint8_t pad, iomode_t mode)
void _pal_lld_setpadmode(ioportid_t port, uint8_t pad, iomode_t mode)
{
uint8_t value = 0;
osalDbgAssert(pad < 32, "invalid pad");
(void)port;
osalDbgAssert(pad <= 31, "pal_lld_setpadmode() - invalid pad");
switch (mode) {
case PAL_MODE_RESET:
case PAL_MODE_UNCONNECTED:
value = 2;
NRF_GPIO->DIRSET = ((uint32_t) 1 << pad);
NRF_GPIO->PIN_CNF[pad] =
(GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
(GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
(GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) |
(GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos) |
(GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
break;
case PAL_MODE_INPUT:
case PAL_MODE_INPUT_ANALOG:
value = 0;
NRF_GPIO->DIRCLR = ((uint32_t) 1 << pad);
NRF_GPIO->PIN_CNF[pad] =
(GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
(GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
(GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) |
(GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
(GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
break;
case PAL_MODE_INPUT_PULLUP:
value = 0xC;
NRF_GPIO->DIRCLR = ((uint32_t) 1 << pad);
NRF_GPIO->PIN_CNF[pad] =
(GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
(GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
(GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
(GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
(GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
break;
case PAL_MODE_INPUT_PULLDOWN:
value = 4;
NRF_GPIO->DIRCLR = ((uint32_t) 1 << pad);
NRF_GPIO->PIN_CNF[pad] =
(GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
(GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
(GPIO_PIN_CNF_PULL_Pulldown << GPIO_PIN_CNF_PULL_Pos) |
(GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
(GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
break;
case PAL_MODE_OUTPUT_PUSHPULL:
value = 1;
NRF_GPIO->DIRSET = ((uint32_t) 1 << pad);
NRF_GPIO->PIN_CNF[pad] =
(GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
(GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
(GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) |
(GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos) |
(GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
break;
case PAL_MODE_OUTPUT_OPENDRAIN:
value = 0x61;
NRF_GPIO->DIRSET = ((uint32_t) 1 << pad);
NRF_GPIO->PIN_CNF[pad] =
(GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
(GPIO_PIN_CNF_DRIVE_S0D1 << GPIO_PIN_CNF_DRIVE_Pos) |
(GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) |
(GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos) |
(GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
break;
default:
osalDbgAssert(FALSE, "invalid pal mode");
break;
}
NRF_GPIO->PIN_CNF[pad] = value;
}
/*===========================================================================*/
@ -84,10 +120,9 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode)
/*===========================================================================*/
/**
* @brief STM32 I/O ports configuration.
* @details Ports A-D(E, F, G, H) clocks enabled.
* @brief NRF51 I/O ports configuration.
*
* @param[in] config the STM32 ports configuration
* @param[in] config the NRF51 ports configuration
*
* @notapi
*/
@ -117,10 +152,10 @@ void _pal_lld_setgroupmode(ioportid_t port,
{
uint8_t i;
(void)mask;
for (i = 0; i < TOTAL_GPIO_PADS; i++) {
pal_lld_setpadmode(port, i, mode);
for (i = 0; i < TOTAL_GPIO_PADS; i++, mask >>= 1) {
if (mask & 1) {
pal_lld_setpadmode(port, i, mode);
}
}
}

99
os/hal/ports/NRF51/NRF51822/pal_lld.h
View File

@ -69,7 +69,7 @@ typedef uint32_t ioportmask_t;
/**
* @brief Digital I/O modes.
*/
typedef uint32_t iomode_t;
typedef uint8_t iomode_t;
/**
* @brief Port Identifier.
@ -77,7 +77,7 @@ typedef uint32_t iomode_t;
* any assumption about it, use the provided macros when populating
* variables of this type.
*/
typedef uint32_t ioportid_t;
typedef NRF_GPIO_Type *ioportid_t;
/*===========================================================================*/
/* I/O Ports Identifiers. */
@ -95,8 +95,6 @@ typedef uint32_t ioportid_t;
/* functions, if so please put them in pal_lld.c. */
/*===========================================================================*/
void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
/**
* @brief Low level PAL subsystem initialization.
*
@ -114,7 +112,7 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
*
* @notapi
*/
#define pal_lld_readport(port) 0U
#define pal_lld_readport(port) (NRF_GPIO->IN)
/**
* @brief Reads the output latch.
@ -126,7 +124,7 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
*
* @notapi
*/
#define pal_lld_readlatch(port) 0U
#define pal_lld_readlatch(port) (NRF_GPIO->OUT)
/**
* @brief Writes a bits mask on a I/O port.
@ -136,12 +134,7 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
*
* @notapi
*/
#define pal_lld_writeport(port, bits) \
do { \
(void)port; \
(void)bits; \
} while (false)
#define pal_lld_writeport(port, bits) (NRF_GPIO->OUT = (bits))
/**
* @brief Sets a bits mask on a I/O port.
@ -154,11 +147,7 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
*
* @notapi
*/
#define pal_lld_setport(port, bits) \
do { \
(void)port; \
(void)bits; \
} while (false)
#define pal_lld_setport(port, bits) (NRF_GPIO->OUTSET = (bits))
/**
@ -172,67 +161,7 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
*
* @notapi
*/
#define pal_lld_clearport(port, bits) \
do { \
(void)port; \
(void)bits; \
} while (false)
/**
* @brief Toggles a bits mask on a I/O port.
* @note The @ref PAL provides a default software implementation of this
* functionality, implement this function if can optimize it by using
* special hardware functionalities or special coding.
*
* @param[in] port port identifier
* @param[in] bits bits to be XORed on the specified port
*
* @notapi
*/
#define pal_lld_toggleport(port, bits) \
do { \
(void)port; \
(void)bits; \
} while (false)
/**
* @brief Reads a group of bits.
* @note The @ref PAL provides a default software implementation of this
* functionality, implement this function if can optimize it by using
* special hardware functionalities or special coding.
*
* @param[in] port port identifier
* @param[in] mask group mask
* @param[in] offset group bit offset within the port
* @return The group logical states.
*
* @notapi
*/
#define pal_lld_readgroup(port, mask, offset) 0U
/**
* @brief Writes a group of bits.
* @note The @ref PAL provides a default software implementation of this
* functionality, implement this function if can optimize it by using
* special hardware functionalities or special coding.
*
* @param[in] port port identifier
* @param[in] mask group mask
* @param[in] offset group bit offset within the port
* @param[in] bits bits to be written. Values exceeding the group width
* are masked.
*
* @notapi
*/
#define pal_lld_writegroup(port, mask, offset, bits) \
do { \
(void)port; \
(void)mask; \
(void)offset; \
(void)bits; \
} while (false)
#define pal_lld_clearport(port, bits) (NRF_GPIO->OUTCLR = (bits))
/**
* @brief Pads group mode setup.
@ -264,7 +193,8 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
*
* @notapi
*/
#define pal_lld_readpad(port, pad) PAL_LOW
#define pal_lld_readpad(port, pad) \
((NRF_GPIO->IN & ((uint32_t) 1 << pad)) ? PAL_HIGH : PAL_LOW)
/**
* @brief Writes a logical state on an output pad.
@ -284,8 +214,10 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
#define pal_lld_writepad(port, pad, bit) \
do { \
(void)port; \
(void)pad; \
(void)bit; \
if (bit == PAL_HIGH) \
NRF_GPIO->OUTSET = ((uint32_t) 1 << pad); \
else \
NRF_GPIO->OUTCLR = ((uint32_t) 1 << pad); \
} while (false)
/**
@ -349,7 +281,7 @@ void _pal_lld_setpadmode(uint8_t pad, iomode_t mode);
*
* @notapi
*/
#define pal_lld_setpadmode(port, pad, mode) _pal_lld_setpadmode(pad, mode)
#define pal_lld_setpadmode(port, pad, mode) _pal_lld_setpadmode(port, pad, mode)
#if !defined(__DOXYGEN__)
extern const PALConfig pal_default_config;
@ -362,6 +294,9 @@ extern "C" {
void _pal_lld_setgroupmode(ioportid_t port,
ioportmask_t mask,
iomode_t mode);
void _pal_lld_setpadmode(ioportid_t port,
uint8_t pad,
iomode_t mode);
#ifdef __cplusplus
}
#endif