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Jawbreaker mixer serial interface support

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This commit is contained in:
Michael Ossmann
2012-09-19 11:55:24 -06:00
parent 241b9147cb
commit 7d0c572569
3 changed files with 94 additions and 51 deletions
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4
firmware/common/hackrf_core.c
View File

@ -28,8 +28,6 @@
#include <libopencm3/lpc43xx/scu.h>
#include <libopencm3/lpc43xx/ssp.h>
#ifdef JELLYBEAN
void delay(uint32_t duration)
{
uint32_t i;
@ -203,5 +201,3 @@ void ssp1_set_mode_max5864(void)
SSP_MASTER,
SSP_SLAVE_OUT_ENABLE);
}
#endif

59
firmware/common/hackrf_core.h
View File

@ -31,14 +31,18 @@ extern "C"
/* hardware identification number */
#define BOARD_ID_JELLYBEAN 0
#define BOARD_ID_JAWBREAKER 1
#ifdef JELLYBEAN
#define BOARD_ID BOARD_ID_JELLYBEAN
#endif
#ifdef JELLYBEAN
#ifdef JAWBREAKER
#define BOARD_ID BOARD_ID_JAWBREAKER
#endif
/*
* Jellybean SCU PinMux
* SCU PinMux
*/
/* GPIO Output PinMux */
@ -94,14 +98,28 @@ extern "C"
#define SCU_AD_CS (P5_7) /* GPIO2[7] on P5_7 */
/* RFFC5071 GPIO serial interface PinMux */
#ifdef JELLYBEAN
#define SCU_MIXER_ENX (P7_0) /* GPIO3[8] on P7_0 */
#define SCU_MIXER_SCLK (P7_1) /* GPIO3[9] on P7_1 */
#define SCU_MIXER_SDATA (P7_2) /* GPIO3[10] on P7_2 */
#define SCU_MIXER_RESETX (P7_3) /* GPIO3[11] on P7_3 */
#endif
#ifdef JAWBREAKER
#define SCU_MIXER_ENX (P5_4) /* GPIO2[13] on P5_4 */
#define SCU_MIXER_SCLK (P2_6) /* GPIO5[6] on P2_6 */
#define SCU_MIXER_SDATA (P6_4) /* GPIO3[3] on P6_4 */
#define SCU_MIXER_RESETX (P5_5) /* GPIO2[14] on P5_5 */
#endif
/* RF LDO control */
#ifdef JAWBREAKER
#define RF_LDO_ENABLE (P5_0) /* GPIO2[9] on P5_0 */
#endif
/* TODO add other Pins */
/*
* Jellybean GPIO Pins
* GPIO Pins
*/
/* GPIO Output */
@ -123,10 +141,31 @@ extern "C"
#define PIN_AD_CS (BIT7) /* GPIO2[7] on P5_7 */
#define PORT_AD_CS (GPIO2) /* PORT for AD_CS */
#ifdef JELLYBEAN
#define PIN_MIXER_ENX (BIT8) /* GPIO3[8] on P7_0 */
#define PORT_MIXER_ENX (GPIO3)
#define PIN_MIXER_SCLK (BIT9) /* GPIO3[9] on P7_1 */
#define PORT_MIXER_SCLK (GPIO3)
#define PIN_MIXER_SDATA (BIT10) /* GPIO3[10] on P7_2 */
#define PORT_MIXER (GPIO3) /* PORT for mixer serial interface */
#define PORT_MIXER_SDATA (GPIO3)
#define PIN_MIXER_RESETX (BIT11) /* GPIO3[11] on P7_3 */
#define PORT_MIXER_RESETX (GPIO3)
#endif
#ifdef JAWBREAKER
#define PIN_MIXER_ENX (BIT13) /* GPIO2[13] on P5_4 */
#define PORT_MIXER_ENX (GPIO2)
#define PIN_MIXER_SCLK (BIT6) /* GPIO5[6] on P2_6 */
#define PORT_MIXER_SCLK (GPIO5)
#define PIN_MIXER_SDATA (BIT3) /* GPIO3[3] on P6_4 */
#define PORT_MIXER_SDATA (GPIO3)
#define PIN_MIXER_RESETX (BIT14) /* GPIO2[14] on P5_5 */
#define PORT_MIXER_RESETX (GPIO2)
#endif
#ifdef JAWBREAKER
#define PIN_RF_LDO_ENABLE (BIT9) /* GPIO2[9] on P5_0 */
#define PORT_RF_LDO_ENABLE (GPIO2) /* PORT for RF_LDO_ENABLE */
#endif
/* GPIO Input */
#define PIN_BOOT0 (BIT8) /* GPIO0[8] on P1_1 */
@ -145,14 +184,14 @@ extern "C"
#define PORT_CPLD_TDI (GPIO3)
/* Read GPIO Pin */
#define BOOT0_STATE ((GPIO0_PIN & PIN_BOOT0)==PIN_BOOT0)
#define BOOT1_STATE ((GPIO0_PIN & PIN_BOOT1)==PIN_BOOT1)
#define BOOT2_STATE ((GPIO5_PIN & PIN_BOOT2)==PIN_BOOT2)
#define BOOT3_STATE ((GPIO1_PIN & PIN_BOOT3)==PIN_BOOT3)
#define MIXER_SDATA_STATE ((GPIO3_PIN & PIN_MIXER_SDATA)==PIN_MIXER_SDATA)
#define GPIO_STATE(port, pin) ((GPIO_PIN(port) & (pin)) == (pin))
#define BOOT0_STATE GPIO_STATE(GPIO0, PIN_BOOT0)
#define BOOT1_STATE GPIO_STATE(GPIO0, PIN_BOOT1)
#define BOOT2_STATE GPIO_STATE(GPIO5, PIN_BOOT2)
#define BOOT3_STATE GPIO_STATE(GPIO1, PIN_BOOT3)
#define MIXER_SDATA_STATE GPIO_STATE(PORT_MIXER_SDATA, PIN_MIXER_SDATA)
/* TODO add other Pins */
#endif
void cpu_clock_init(void);
void ssp1_init(void);

74
firmware/common/rffc5071.c
View File

@ -103,13 +103,19 @@ void rffc5071_setup(void)
scu_pinmux(SCU_MIXER_ENX, SCU_GPIO_FAST);
scu_pinmux(SCU_MIXER_SCLK, SCU_GPIO_FAST);
scu_pinmux(SCU_MIXER_SDATA, SCU_GPIO_FAST);
scu_pinmux(SCU_MIXER_RESETX, SCU_GPIO_FAST);
/* Set GPIO pins as outputs. */
GPIO3_DIR |= (PIN_MIXER_ENX | PIN_MIXER_SCLK | PIN_MIXER_SDATA);
GPIO_DIR(PORT_MIXER_ENX) |= PIN_MIXER_ENX;
GPIO_DIR(PORT_MIXER_SCLK) |= PIN_MIXER_SCLK;
GPIO_DIR(PORT_MIXER_SDATA) |= PIN_MIXER_SDATA;
GPIO_DIR(PORT_MIXER_RESETX) |= PIN_MIXER_RESETX;
/* set to known state */
gpio_set(PORT_MIXER, PIN_MIXER_ENX); /* active low */
gpio_clear(PORT_MIXER, (PIN_MIXER_SCLK | PIN_MIXER_SDATA));
gpio_set(PORT_MIXER_ENX, PIN_MIXER_ENX); /* active low */
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SDATA, PIN_MIXER_SDATA);
gpio_set(PORT_MIXER_RESETX, PIN_MIXER_RESETX); /* active low */
#endif
/* initial setup */
@ -185,69 +191,70 @@ uint16_t rffc5071_spi_read(uint8_t r) {
return 0;
#else
/* make sure everything is starting in the correct state */
gpio_set(PORT_MIXER, PIN_MIXER_ENX);
gpio_clear(PORT_MIXER, (PIN_MIXER_SCLK | PIN_MIXER_SDATA));
gpio_set(PORT_MIXER_ENX, PIN_MIXER_ENX);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SDATA, PIN_MIXER_SDATA);
/*
* The device requires two clocks while ENX is high before a serial
* transaction. This is not clearly documented.
*/
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_SCLK);
gpio_set(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_clear(PORT_MIXER, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_SCLK);
gpio_set(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_clear(PORT_MIXER, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
/* start transaction by bringing ENX low */
gpio_clear(PORT_MIXER, PIN_MIXER_ENX);
gpio_clear(PORT_MIXER_ENX, PIN_MIXER_ENX);
while (bits--) {
if (data & msb)
gpio_set(PORT_MIXER, PIN_MIXER_SDATA);
gpio_set(PORT_MIXER_SDATA, PIN_MIXER_SDATA);
else
gpio_clear(PORT_MIXER, PIN_MIXER_SDATA);
gpio_clear(PORT_MIXER_SDATA, PIN_MIXER_SDATA);
data <<= 1;
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_SCLK);
gpio_set(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_clear(PORT_MIXER, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
}
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_SCLK);
gpio_set(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_clear(PORT_MIXER, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
bits = 16;
data = 0;
/* set SDATA line as input */
GPIO3_DIR &= ~PIN_MIXER_SDATA;
GPIO_DIR(PORT_MIXER_SDATA) &= ~PIN_MIXER_SDATA;
while (bits--) {
data <<= 1;
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_SCLK);
gpio_set(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_clear(PORT_MIXER, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
if (MIXER_SDATA_STATE)
data |= 1;
}
/* set SDATA line as output */
GPIO3_DIR |= PIN_MIXER_SDATA;
GPIO_DIR(PORT_MIXER_SDATA) |= PIN_MIXER_SDATA;
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_ENX);
gpio_set(PORT_MIXER_ENX, PIN_MIXER_ENX);
return data;
#endif /* DEBUG */
@ -272,44 +279,45 @@ void rffc5071_spi_write(uint8_t r, uint16_t v) {
uint32_t data = ((r & 0x7f) << 16) | v;
/* make sure everything is starting in the correct state */
gpio_set(PORT_MIXER, PIN_MIXER_ENX);
gpio_clear(PORT_MIXER, (PIN_MIXER_SCLK | PIN_MIXER_SDATA));
gpio_set(PORT_MIXER_ENX, PIN_MIXER_ENX);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SDATA, PIN_MIXER_SDATA);
/*
* The device requires two clocks while ENX is high before a serial
* transaction. This is not clearly documented.
*/
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_SCLK);
gpio_set(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_clear(PORT_MIXER, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_SCLK);
gpio_set(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_clear(PORT_MIXER, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
/* start transaction by bringing ENX low */
gpio_clear(PORT_MIXER, PIN_MIXER_ENX);
gpio_clear(PORT_MIXER_ENX, PIN_MIXER_ENX);
while (bits--) {
if (data & msb)
gpio_set(PORT_MIXER, PIN_MIXER_SDATA);
gpio_set(PORT_MIXER_SDATA, PIN_MIXER_SDATA);
else
gpio_clear(PORT_MIXER, PIN_MIXER_SDATA);
gpio_clear(PORT_MIXER_SDATA, PIN_MIXER_SDATA);
data <<= 1;
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_SCLK);
gpio_set(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
serial_delay();
gpio_clear(PORT_MIXER, PIN_MIXER_SCLK);
gpio_clear(PORT_MIXER_SCLK, PIN_MIXER_SCLK);
}
serial_delay();
gpio_set(PORT_MIXER, PIN_MIXER_ENX);
gpio_set(PORT_MIXER_ENX, PIN_MIXER_ENX);
#endif
}