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some drying things up (GPIO init in particular)

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sipo
Ondřej Hruška 7 years ago
parent 6756b79ef4
commit 6406475f48
Signed by: MightyPork
GPG Key ID: 2C5FD5035250423D
6 changed files with 79 additions and 92 deletions
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  1. 9
      framework/resources.c
  2. 1
      framework/resources.h
  3. 40
      platform/pin_utils.c
  4. 3
      platform/pin_utils.h
  5. 45
      units/i2c/unit_i2c.c
  6. 73
      units/spi/unit_spi.c

9
framework/resources.c
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@ -136,6 +136,15 @@ error_t rsc_claim_gpios(Unit *unit, char port_name, uint16_t pins)
return E_SUCCESS;
}
error_t rsc_claim_pin(Unit *unit, char port_name, uint8_t pin)
{
bool suc = true;
Resource rsc = pin2resource(port_name, pin, &suc);
if (!suc) return E_BAD_CONFIG;
TRY(rsc_claim(unit, rsc));
return E_SUCCESS;
}
/**
* Free a resource for other use
*

1
framework/resources.h
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@ -13,6 +13,7 @@
void rsc_init_registry(void);
error_t rsc_claim_pin(Unit *unit, char port_name, uint8_t pin);
error_t rsc_claim(Unit *unit, Resource rsc);
error_t rsc_claim_range(Unit *unit, Resource rsc0, Resource rsc1);
/**

40
platform/pin_utils.c
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@ -271,3 +271,43 @@ void deinit_unit_pins(Unit *unit)
}
}
}
error_t configure_gpio_alternate(char port_name, uint8_t pin_num, uint32_t af)
{
bool suc = true;
GPIO_TypeDef *port = port2periph(port_name, &suc);
uint32_t ll_pin = pin2ll(pin_num, &suc);
if (!suc) return E_BAD_CONFIG;
if (pin_num < 8)
LL_GPIO_SetAFPin_0_7(port, ll_pin, af);
else
LL_GPIO_SetAFPin_8_15(port, ll_pin, af);
LL_GPIO_SetPinMode(port, ll_pin, LL_GPIO_MODE_ALTERNATE);
return E_SUCCESS;
}
error_t configure_sparse_pins(char port_name, uint16_t mask, GPIO_TypeDef **port_dest, uint32_t mode, uint32_t otype)
{
bool suc = true;
GPIO_TypeDef *port = port2periph(port_name, &suc);
if (!suc) return E_BAD_CONFIG;
for (int i = 0; i < 16; i++) {
if (mask & (1<<i)) {
uint32_t ll_pin = pin2ll((uint8_t) i, &suc);
LL_GPIO_SetPinMode(port, ll_pin, mode);
LL_GPIO_SetPinOutputType(port, ll_pin, otype);
LL_GPIO_SetPinSpeed(port, ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
}
}
if (port_dest != NULL) {
*port_dest = port;
}
return E_SUCCESS;
}

3
platform/pin_utils.h
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@ -75,4 +75,7 @@ uint16_t port_pack(uint16_t spread, uint16_t mask);
*/
void deinit_unit_pins(Unit *unit);
error_t configure_gpio_alternate(char port_name, uint8_t pin_num, uint32_t af);
error_t configure_sparse_pins(char port_name, uint16_t mask, GPIO_TypeDef **port_dest, uint32_t mode, uint32_t otype);
#endif //GEX_PIN_UTILS_H

45
units/i2c/unit_i2c.c
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@ -21,9 +21,9 @@ struct priv {
I2C_TypeDef *periph;
GPIO_TypeDef *port;
uint32_t ll_pin_scl;
uint32_t ll_pin_sda;
// GPIO_TypeDef *port;
// uint32_t ll_pin_scl;
// uint32_t ll_pin_sda;
};
// ------------------------------------------------------------------------
@ -40,6 +40,10 @@ static void UI2C_loadBinary(Unit *unit, PayloadParser *pp)
priv->anf = pp_bool(pp);
priv->dnf = pp_u8(pp);
priv->speed = pp_u8(pp);
if (version >= 1) {
priv->remap = pp_u8(pp);
}
}
/** Write to a binary buffer for storing in Flash */
@ -47,12 +51,13 @@ static void UI2C_writeBinary(Unit *unit, PayloadBuilder *pb)
{
struct priv *priv = unit->data;
pb_u8(pb, 0); // version
pb_u8(pb, 1); // version
pb_u8(pb, priv->periph_num);
pb_bool(pb, priv->anf);
pb_u8(pb, priv->dnf);
pb_u8(pb, priv->speed);
pb_u8(pb, priv->remap);
}
// ------------------------------------------------------------------------
@ -229,32 +234,11 @@ static error_t UI2C_init(Unit *unit)
#endif
// first, we have to claim the pins
Resource r_sda = pin2resource(portname, pin_sda, &suc);
Resource r_scl = pin2resource(portname, pin_scl, &suc);
if (!suc) return E_BAD_CONFIG;
TRY(rsc_claim(unit, r_sda));
TRY(rsc_claim(unit, r_scl));
priv->port = port2periph(portname, &suc);
priv->ll_pin_scl = pin2ll(pin_scl, &suc);
priv->ll_pin_sda = pin2ll(pin_sda, &suc);
if (!suc) return E_BAD_CONFIG;
// configure AF
if (pin_scl < 8) LL_GPIO_SetAFPin_0_7(priv->port, priv->ll_pin_scl, af_i2c);
else LL_GPIO_SetAFPin_8_15(priv->port, priv->ll_pin_scl, af_i2c);
if (pin_sda < 8) LL_GPIO_SetAFPin_0_7(priv->port, priv->ll_pin_sda, af_i2c);
else LL_GPIO_SetAFPin_8_15(priv->port, priv->ll_pin_sda, af_i2c);
LL_GPIO_SetPinMode(priv->port, priv->ll_pin_scl, LL_GPIO_MODE_ALTERNATE);
LL_GPIO_SetPinMode(priv->port, priv->ll_pin_sda, LL_GPIO_MODE_ALTERNATE);
// set as OpenDrain (this may not be needed - TODO check)
LL_GPIO_SetPinOutputType(priv->port, priv->ll_pin_scl, LL_GPIO_OUTPUT_OPENDRAIN);
LL_GPIO_SetPinOutputType(priv->port, priv->ll_pin_sda, LL_GPIO_OUTPUT_OPENDRAIN);
TRY(rsc_claim_pin(unit, portname, pin_sda));
TRY(rsc_claim_pin(unit, portname, pin_scl));
configure_gpio_alternate(portname, pin_sda, af_i2c);
configure_gpio_alternate(portname, pin_scl, af_i2c);
if (priv->periph_num == 1) {
__HAL_RCC_I2C1_CLK_ENABLE();
@ -265,8 +249,7 @@ static error_t UI2C_init(Unit *unit)
/* Disable the selected I2Cx Peripheral */
LL_I2C_Disable(priv->periph);
LL_I2C_ConfigFilters(priv->periph,
priv->anf ? LL_I2C_ANALOGFILTER_ENABLE
: LL_I2C_ANALOGFILTER_DISABLE,
(priv->anf ? LL_I2C_ANALOGFILTER_ENABLE : LL_I2C_ANALOGFILTER_DISABLE),
priv->dnf);
LL_I2C_SetTiming(priv->periph, timing);

73
units/spi/unit_spi.c
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@ -25,12 +25,7 @@ struct priv {
uint16_t ssn_pins; //!< SSN pin mask
SPI_TypeDef *periph;
GPIO_TypeDef *ssn_port;
GPIO_TypeDef *spi_port;
uint32_t ll_pin_miso;
uint32_t ll_pin_mosi;
uint32_t ll_pin_sck;
};
// ------------------------------------------------------------------------
@ -291,34 +286,13 @@ static error_t USPI_init(Unit *unit)
#endif
// first, we have to claim the pins
Resource r_mosi = pin2resource(spi_portname, pin_mosi, &suc);
Resource r_miso = pin2resource(spi_portname, pin_miso, &suc);
Resource r_sck = pin2resource(spi_portname, pin_sck, &suc);
if (!suc) return E_BAD_CONFIG;
TRY(rsc_claim(unit, r_mosi));
TRY(rsc_claim(unit, r_miso));
TRY(rsc_claim(unit, r_sck));
priv->spi_port = port2periph(spi_portname, &suc);
priv->ll_pin_mosi = pin2ll(pin_mosi, &suc);
priv->ll_pin_miso = pin2ll(pin_miso, &suc);
priv->ll_pin_sck = pin2ll(pin_sck, &suc);
if (!suc) return E_BAD_CONFIG;
// configure AF
if (pin_mosi < 8) LL_GPIO_SetAFPin_0_7(priv->spi_port, priv->ll_pin_mosi, af_spi);
else LL_GPIO_SetAFPin_8_15(priv->spi_port, priv->ll_pin_mosi, af_spi);
TRY(rsc_claim_pin(unit, spi_portname, pin_mosi));
TRY(rsc_claim_pin(unit, spi_portname, pin_miso));
TRY(rsc_claim_pin(unit, spi_portname, pin_sck));
if (pin_miso < 8) LL_GPIO_SetAFPin_0_7(priv->spi_port, priv->ll_pin_miso, af_spi);
else LL_GPIO_SetAFPin_8_15(priv->spi_port, priv->ll_pin_miso, af_spi);
if (pin_sck < 8) LL_GPIO_SetAFPin_0_7(priv->spi_port, priv->ll_pin_sck, af_spi);
else LL_GPIO_SetAFPin_8_15(priv->spi_port, priv->ll_pin_sck, af_spi);
LL_GPIO_SetPinMode(priv->spi_port, priv->ll_pin_mosi, LL_GPIO_MODE_ALTERNATE);
LL_GPIO_SetPinMode(priv->spi_port, priv->ll_pin_miso, LL_GPIO_MODE_ALTERNATE);
LL_GPIO_SetPinMode(priv->spi_port, priv->ll_pin_sck, LL_GPIO_MODE_ALTERNATE);
configure_gpio_alternate(spi_portname, pin_mosi, af_spi);
configure_gpio_alternate(spi_portname, pin_miso, af_spi);
configure_gpio_alternate(spi_portname, pin_sck, af_spi);
if (priv->periph_num == 1) {
__HAL_RCC_SPI1_CLK_ENABLE();
@ -328,22 +302,10 @@ static error_t USPI_init(Unit *unit)
// configure SSN GPIOs
{
priv->ssn_port = port2periph(priv->ssn_port_name, &suc);
if (!suc) return E_BAD_CONFIG;
// Claim all needed pins
TRY(rsc_claim_gpios(unit, priv->ssn_port_name, priv->ssn_pins));
uint16_t mask = 1;
for (int i = 0; i < 16; i++, mask <<= 1) {
if (priv->ssn_pins & mask) {
uint32_t ll_pin = pin2ll((uint8_t) i, &suc);
LL_GPIO_SetPinMode(priv->ssn_port, ll_pin, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(priv->ssn_port, ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
LL_GPIO_SetPinSpeed(priv->ssn_port, ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
}
}
TRY(configure_sparse_pins(priv->ssn_port_name, priv->ssn_pins, &priv->ssn_port,
LL_GPIO_MODE_OUTPUT, LL_GPIO_OUTPUT_PUSHPULL));
// Set the initial state - all high
priv->ssn_port->ODR &= priv->ssn_pins;
}
@ -359,21 +321,10 @@ static error_t USPI_init(Unit *unit)
dbg("Presc is %d", (int) presc);
LL_SPI_SetBaudRatePrescaler(priv->periph, presc);
LL_SPI_SetClockPolarity(priv->periph, priv->cpol ?
LL_SPI_POLARITY_HIGH :
LL_SPI_POLARITY_LOW);
LL_SPI_SetClockPhase(priv->periph, priv->cpha ?
LL_SPI_PHASE_1EDGE :
LL_SPI_PHASE_2EDGE);
LL_SPI_SetTransferDirection(priv->periph, priv->tx_only ?
LL_SPI_HALF_DUPLEX_TX :
LL_SPI_FULL_DUPLEX);
LL_SPI_SetTransferBitOrder(priv->periph, priv->lsb_first ?
LL_SPI_LSB_FIRST :
LL_SPI_MSB_FIRST);
LL_SPI_SetClockPolarity(priv->periph, priv->cpol ? LL_SPI_POLARITY_HIGH : LL_SPI_POLARITY_LOW);
LL_SPI_SetClockPhase(priv->periph, priv->cpha ? LL_SPI_PHASE_1EDGE : LL_SPI_PHASE_2EDGE);
LL_SPI_SetTransferDirection(priv->periph, priv->tx_only ? LL_SPI_HALF_DUPLEX_TX : LL_SPI_FULL_DUPLEX);
LL_SPI_SetTransferBitOrder(priv->periph, priv->lsb_first ? LL_SPI_LSB_FIRST : LL_SPI_MSB_FIRST);
// TODO data size?

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