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-rw-r--r--board/c2d2/board.c228
1 files changed, 93 insertions, 135 deletions
diff --git a/board/c2d2/board.c b/board/c2d2/board.c
index 24b314118e..fa6373c861 100644
--- a/board/c2d2/board.c
+++ b/board/c2d2/board.c
@@ -1,4 +1,4 @@
-/* Copyright 2020 The Chromium OS Authors. All rights reserved.
+/* Copyright 2020 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
@@ -30,8 +30,8 @@
#include "gpio_list.h"
-#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
+#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ##args)
+#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ##args)
/* Forward declarations */
static void update_vrefs_and_shifters(void);
@@ -41,19 +41,19 @@ static bool is_ec_i2c_enabled(void);
/* Global state tracking current pin configuration and operations */
static struct mutex vref_bus_state_mutex;
static int vref_monitor_disable;
-#define VREF_MON_DIS_H1_RST_HELD BIT(0)
-#define VREF_MON_DIS_EC_PWR_HELD BIT(1)
-#define VREF_MON_DIS_SPI_MODE BIT(2)
+#define VREF_MON_DIS_H1_RST_HELD BIT(0)
+#define VREF_MON_DIS_EC_PWR_HELD BIT(1)
+#define VREF_MON_DIS_SPI_MODE BIT(2)
/*
* Tracks if bus pins are locked by a function like UART holding, I2C,
* or SPI.
*/
enum bus_lock {
- BUS_UNLOCKED, /* Normal UART; pins available for other functions */
- BUS_UART_HELD, /* UART locked to pins while holding RX low */
- BUS_SPI, /* SPI locked to pins */
- BUS_I2C, /* I2C bus locked to pins */
+ BUS_UNLOCKED, /* Normal UART; pins available for other functions */
+ BUS_UART_HELD, /* UART locked to pins while holding RX low */
+ BUS_SPI, /* SPI locked to pins */
+ BUS_I2C, /* I2C bus locked to pins */
};
/* A0/A1 (H1 UART or SPI) */
enum bus_lock h1_pins;
@@ -77,7 +77,7 @@ static const char *lock_to_string(const enum bus_lock val)
return names[val];
}
-static int command_bus_status(int argc, char **argv)
+static int command_bus_status(int argc, const char **argv)
{
if (argc > 1)
return EC_ERROR_PARAM_COUNT;
@@ -88,11 +88,9 @@ static int command_bus_status(int argc, char **argv)
return EC_SUCCESS;
}
-DECLARE_CONSOLE_COMMAND(bus_status, command_bus_status,
- "",
+DECLARE_CONSOLE_COMMAND(bus_status, command_bus_status, "",
"Gets the bus state for swappable pins");
-
/******************************************************************************
** Chip-specific board configuration
*/
@@ -114,12 +112,11 @@ void board_config_pre_init(void)
* i2c : no dma
* tim16/17: no dma
*/
- STM32_SYSCFG_CFGR1 |= BIT(24); /* Remap SPI2_RX to channel 6 */
- STM32_SYSCFG_CFGR1 |= BIT(26); /* Remap USART3 RX/TX DMA */
- STM32_SYSCFG_CFGR1 |= BIT(10); /* Remap USART1 RX/TX DMA */
+ STM32_SYSCFG_CFGR1 |= BIT(24); /* Remap SPI2_RX to channel 6 */
+ STM32_SYSCFG_CFGR1 |= BIT(26); /* Remap USART3 RX/TX DMA */
+ STM32_SYSCFG_CFGR1 |= BIT(10); /* Remap USART1 RX/TX DMA */
}
-
/******************************************************************************
** ADC channels
*/
@@ -147,18 +144,18 @@ BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
* Define the strings used in our USB descriptors.
*/
const void *const usb_strings[] = {
- [USB_STR_DESC] = usb_string_desc,
- [USB_STR_VENDOR] = USB_STRING_DESC("Google Inc."),
- [USB_STR_PRODUCT] = USB_STRING_DESC("C2D2"),
- [USB_STR_SERIALNO] = 0,
- [USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32),
- [USB_STR_USART4_STREAM_NAME] = USB_STRING_DESC("CR50"),
- [USB_STR_UPDATE_NAME] = USB_STRING_DESC("Firmware update"),
- [USB_STR_CONSOLE_NAME] = USB_STRING_DESC("C2D2 Shell"),
- [USB_STR_SPI_NAME] = USB_STRING_DESC("SPI"),
- [USB_STR_I2C_NAME] = USB_STRING_DESC("I2C"),
- [USB_STR_USART3_STREAM_NAME] = USB_STRING_DESC("CPU"),
- [USB_STR_USART1_STREAM_NAME] = USB_STRING_DESC("EC"),
+ [USB_STR_DESC] = usb_string_desc,
+ [USB_STR_VENDOR] = USB_STRING_DESC("Google LLC"),
+ [USB_STR_PRODUCT] = USB_STRING_DESC("C2D2"),
+ [USB_STR_SERIALNO] = 0,
+ [USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32),
+ [USB_STR_USART4_STREAM_NAME] = USB_STRING_DESC("CR50"),
+ [USB_STR_UPDATE_NAME] = USB_STRING_DESC("Firmware update"),
+ [USB_STR_CONSOLE_NAME] = USB_STRING_DESC("C2D2 Shell"),
+ [USB_STR_SPI_NAME] = USB_STRING_DESC("SPI"),
+ [USB_STR_I2C_NAME] = USB_STRING_DESC("I2C"),
+ [USB_STR_USART3_STREAM_NAME] = USB_STRING_DESC("CPU"),
+ [USB_STR_USART1_STREAM_NAME] = USB_STRING_DESC("EC"),
};
BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT);
@@ -174,7 +171,7 @@ const struct i2c_port_t i2c_ports[] = {
.port = I2C_PORT_EC,
.kbps = 100,
.scl = GPIO_UART_DBG_TX_EC_RX_SCL,
- .sda = GPIO_UART_EC_TX_DBG_RX_SDA,
+ .sda = GPIO_UART_EC_TX_DBG_RX_SDA,
.flags = I2C_PORT_FLAG_DYNAMIC_SPEED,
},
{
@@ -182,7 +179,7 @@ const struct i2c_port_t i2c_ports[] = {
.port = I2C_PORT_AUX,
.kbps = 100,
.scl = GPIO_UART_DBG_TX_AP_RX_INA_SCL,
- .sda = GPIO_UART_AP_TX_DBG_RX_INA_SDA,
+ .sda = GPIO_UART_AP_TX_DBG_RX_INA_SDA,
.flags = I2C_PORT_FLAG_DYNAMIC_SPEED,
},
};
@@ -203,14 +200,19 @@ const struct ite_dfu_config_t ite_dfu_config = {
* let the i2c transactions fail instead of using the USB endpoint disable
* status.
*/
-int usb_i2c_board_is_enabled(void) { return 1; }
+int usb_i2c_board_is_enabled(void)
+{
+ return 1;
+}
/******************************************************************************
* Forward UARTs as a USB serial interface.
*/
-#define USB_STREAM_RX_SIZE 32
-#define USB_STREAM_TX_SIZE 64
+#define USB_STREAM_RX_SIZE 32
+#define USB_STREAM_TX_SIZE 64
+#define USART_TO_USB_SIZE 1024
+#define USB_TO_USART_SIZE 64
/******************************************************************************
* Forward USART1 (EC) as a simple USB serial interface.
@@ -219,33 +221,22 @@ int usb_i2c_board_is_enabled(void) { return 1; }
static struct usart_config const usart1;
struct usb_stream_config const usart1_usb;
-static struct queue const usart1_to_usb = QUEUE_DIRECT(128, uint8_t,
- usart1.producer, usart1_usb.consumer);
-static struct queue const usb_to_usart1 = QUEUE_DIRECT(64, uint8_t,
- usart1_usb.producer, usart1.consumer);
+static struct queue const usart1_to_usb = QUEUE_DIRECT(
+ USART_TO_USB_SIZE, uint8_t, usart1.producer, usart1_usb.consumer);
+static struct queue const usb_to_usart1 = QUEUE_DIRECT(
+ USB_TO_USART_SIZE, uint8_t, usart1_usb.producer, usart1.consumer);
static struct usart_rx_dma const usart1_rx_dma =
USART_RX_DMA(STM32_DMAC_CH5, 32);
static struct usart_config const usart1 =
- USART_CONFIG(usart1_hw,
- usart1_rx_dma.usart_rx,
- usart_tx_interrupt,
- 115200,
- 0,
- usart1_to_usb,
- usb_to_usart1);
-
-USB_STREAM_CONFIG_USART_IFACE(usart1_usb,
- USB_IFACE_USART1_STREAM,
- USB_STR_USART1_STREAM_NAME,
- USB_EP_USART1_STREAM,
- USB_STREAM_RX_SIZE,
- USB_STREAM_TX_SIZE,
- usb_to_usart1,
- usart1_to_usb,
- usart1)
+ USART_CONFIG(usart1_hw, usart1_rx_dma.usart_rx, usart_tx_interrupt,
+ 115200, 0, usart1_to_usb, usb_to_usart1);
+USB_STREAM_CONFIG_USART_IFACE(usart1_usb, USB_IFACE_USART1_STREAM,
+ USB_STR_USART1_STREAM_NAME, USB_EP_USART1_STREAM,
+ USB_STREAM_RX_SIZE, USB_STREAM_TX_SIZE,
+ usb_to_usart1, usart1_to_usb, usart1)
/******************************************************************************
* Forward USART3 (CPU) as a simple USB serial interface.
@@ -254,33 +245,22 @@ USB_STREAM_CONFIG_USART_IFACE(usart1_usb,
static struct usart_config const usart3;
struct usb_stream_config const usart3_usb;
-static struct queue const usart3_to_usb = QUEUE_DIRECT(1024, uint8_t,
- usart3.producer, usart3_usb.consumer);
-static struct queue const usb_to_usart3 = QUEUE_DIRECT(64, uint8_t,
- usart3_usb.producer, usart3.consumer);
+static struct queue const usart3_to_usb = QUEUE_DIRECT(
+ USART_TO_USB_SIZE, uint8_t, usart3.producer, usart3_usb.consumer);
+static struct queue const usb_to_usart3 = QUEUE_DIRECT(
+ USB_TO_USART_SIZE, uint8_t, usart3_usb.producer, usart3.consumer);
static struct usart_rx_dma const usart3_rx_dma =
USART_RX_DMA(STM32_DMAC_CH3, 32);
static struct usart_config const usart3 =
- USART_CONFIG(usart3_hw,
- usart3_rx_dma.usart_rx,
- usart_tx_interrupt,
- 115200,
- 0,
- usart3_to_usb,
- usb_to_usart3);
-
-USB_STREAM_CONFIG_USART_IFACE(usart3_usb,
- USB_IFACE_USART3_STREAM,
- USB_STR_USART3_STREAM_NAME,
- USB_EP_USART3_STREAM,
- USB_STREAM_RX_SIZE,
- USB_STREAM_TX_SIZE,
- usb_to_usart3,
- usart3_to_usb,
- usart3)
+ USART_CONFIG(usart3_hw, usart3_rx_dma.usart_rx, usart_tx_interrupt,
+ 115200, 0, usart3_to_usb, usb_to_usart3);
+USB_STREAM_CONFIG_USART_IFACE(usart3_usb, USB_IFACE_USART3_STREAM,
+ USB_STR_USART3_STREAM_NAME, USB_EP_USART3_STREAM,
+ USB_STREAM_RX_SIZE, USB_STREAM_TX_SIZE,
+ usb_to_usart3, usart3_to_usb, usart3)
/******************************************************************************
* Forward USART4 (cr50) as a simple USB serial interface.
@@ -291,29 +271,19 @@ USB_STREAM_CONFIG_USART_IFACE(usart3_usb,
static struct usart_config const usart4;
struct usb_stream_config const usart4_usb;
-static struct queue const usart4_to_usb = QUEUE_DIRECT(1024, uint8_t,
- usart4.producer, usart4_usb.consumer);
-static struct queue const usb_to_usart4 = QUEUE_DIRECT(64, uint8_t,
- usart4_usb.producer, usart4.consumer);
+static struct queue const usart4_to_usb = QUEUE_DIRECT(
+ USART_TO_USB_SIZE, uint8_t, usart4.producer, usart4_usb.consumer);
+static struct queue const usb_to_usart4 = QUEUE_DIRECT(
+ USB_TO_USART_SIZE, uint8_t, usart4_usb.producer, usart4.consumer);
static struct usart_config const usart4 =
- USART_CONFIG(usart4_hw,
- usart_rx_interrupt,
- usart_tx_interrupt,
- 115200,
- 0,
- usart4_to_usb,
- usb_to_usart4);
-
-USB_STREAM_CONFIG_USART_IFACE(usart4_usb,
- USB_IFACE_USART4_STREAM,
- USB_STR_USART4_STREAM_NAME,
- USB_EP_USART4_STREAM,
- USB_STREAM_RX_SIZE,
- USB_STREAM_TX_SIZE,
- usb_to_usart4,
- usart4_to_usb,
- usart4)
+ USART_CONFIG(usart4_hw, usart_rx_interrupt, usart_tx_interrupt, 115200,
+ 0, usart4_to_usb, usb_to_usart4);
+
+USB_STREAM_CONFIG_USART_IFACE(usart4_usb, USB_IFACE_USART4_STREAM,
+ USB_STR_USART4_STREAM_NAME, USB_EP_USART4_STREAM,
+ USB_STREAM_RX_SIZE, USB_STREAM_TX_SIZE,
+ usb_to_usart4, usart4_to_usb, usart4)
/******************************************************************************
* Set up SPI over USB
@@ -322,7 +292,7 @@ USB_STREAM_CONFIG_USART_IFACE(usart4_usb,
/* SPI devices */
const struct spi_device_t spi_devices[] = {
- { CONFIG_SPI_FLASH_PORT, 1, GPIO_SPI_CSN},
+ { CONFIG_SPI_FLASH_PORT, 1, GPIO_SPI_CSN },
};
const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);
@@ -364,7 +334,7 @@ USB_SPI_CONFIG(usb_spi, USB_IFACE_SPI, USB_EP_SPI,
/******************************************************************************
* Check parity setting on usarts.
*/
-static int command_uart_parity(int argc, char **argv)
+static int command_uart_parity(int argc, const char **argv)
{
int parity = 0, newparity;
struct usart_config const *usart;
@@ -398,14 +368,13 @@ static int command_uart_parity(int argc, char **argv)
return EC_SUCCESS;
}
-DECLARE_CONSOLE_COMMAND(parity, command_uart_parity,
- "usart[2|3|4] [0|1|2]",
+DECLARE_CONSOLE_COMMAND(parity, command_uart_parity, "usart[2|3|4] [0|1|2]",
"Set parity on uart");
/******************************************************************************
* Set baud rate setting on usarts.
*/
-static int command_uart_baud(int argc, char **argv)
+static int command_uart_baud(int argc, const char **argv)
{
int baud = 0;
struct usart_config const *usart;
@@ -431,14 +400,13 @@ static int command_uart_baud(int argc, char **argv)
return EC_SUCCESS;
}
-DECLARE_CONSOLE_COMMAND(baud, command_uart_baud,
- "usart[2|3|4] rate",
+DECLARE_CONSOLE_COMMAND(baud, command_uart_baud, "usart[2|3|4] rate",
"Set baud rate on uart");
/******************************************************************************
* Hold the usart pins low while disabling it, or return it to normal.
*/
-static int command_hold_usart_low(int argc, char **argv)
+static int command_hold_usart_low(int argc, const char **argv)
{
enum bus_lock *bus;
enum gpio_signal rx;
@@ -501,7 +469,7 @@ static int command_hold_usart_low(int argc, char **argv)
/* Print status for get and set case. */
ccprintf("USART status: %s\n",
- *bus == BUS_UART_HELD ? "held low" : "normal");
+ *bus == BUS_UART_HELD ? "held low" : "normal");
return EC_SUCCESS;
@@ -513,7 +481,6 @@ DECLARE_CONSOLE_COMMAND(hold_usart_low, command_hold_usart_low,
"usart[1|3|4] [0|1]?",
"Get/set the hold-low state for usart port");
-
/******************************************************************************
* Console commands SPI programming
*/
@@ -523,7 +490,7 @@ enum vref {
PP3300 = 3300,
};
-static int command_enable_spi(int argc, char **argv)
+static int command_enable_spi(int argc, const char **argv)
{
static enum vref current_spi_vref_state;
@@ -650,8 +617,7 @@ busy_error_unlock:
mutex_unlock(&vref_bus_state_mutex);
return EC_ERROR_BUSY;
}
-DECLARE_CONSOLE_COMMAND(enable_spi, command_enable_spi,
- "[0|1800|3300]?",
+DECLARE_CONSOLE_COMMAND(enable_spi, command_enable_spi, "[0|1800|3300]?",
"Get/set the SPI Vref");
/******************************************************************************
@@ -686,7 +652,7 @@ static inline int to_kbps(enum i2c_freq freq)
}
}
-static int command_enable_i2c(int argc, char **argv)
+static int command_enable_i2c(int argc, const char **argv)
{
int i2c_index;
enum bus_lock *bus;
@@ -770,7 +736,7 @@ DECLARE_CONSOLE_COMMAND(enable_i2c, command_enable_i2c,
* Console commands for asserting H1 reset and EC Power button
*/
-static int command_vref_alternate(int argc, char **argv,
+static int command_vref_alternate(int argc, const char **argv,
const enum gpio_signal vref_signal,
const enum gpio_signal en_signal,
const int state_flag,
@@ -819,7 +785,6 @@ static int command_vref_alternate(int argc, char **argv,
ccprintf("%s held: %s\n", print_name,
vref_monitor_disable & state_flag ? "yes" : "no");
-
return EC_SUCCESS;
busy_error_unlock:
@@ -827,24 +792,23 @@ busy_error_unlock:
return EC_ERROR_BUSY;
}
-static int command_pwr_button(int argc, char **argv)
+static int command_pwr_button(int argc, const char **argv)
{
return command_vref_alternate(argc, argv,
GPIO_SPIVREF_HOLDN_ECVREF_H1_PWRBTN_ODL,
GPIO_EN_SPIVREF_HOLDN_ECVREF_H1_PWRBTN,
VREF_MON_DIS_EC_PWR_HELD, "Power button");
}
-DECLARE_CONSOLE_COMMAND(pwr_button, command_pwr_button,
- "[0|1]?",
+DECLARE_CONSOLE_COMMAND(pwr_button, command_pwr_button, "[0|1]?",
"Get/set the power button state");
-static int command_h1_reset(int argc, char **argv)
+static int command_h1_reset(int argc, const char **argv)
{
if ((argc == 2) && !strncasecmp("pulse", argv[1], strlen(argv[1]))) {
int rv;
int c = 2;
- char *cmd_on[] = {"", "1", ""};
- char *cmd_off[] = {"", "0", ""};
+ const char *cmd_on[] = { "", "1", "" };
+ const char *cmd_off[] = { "", "0", "" };
rv = command_vref_alternate(c, cmd_on,
GPIO_SPIVREF_RSVD_H1VREF_H1_RST_ODL,
@@ -853,11 +817,10 @@ static int command_h1_reset(int argc, char **argv)
"H1 reset");
if (rv == EC_SUCCESS) {
msleep(100);
- rv = command_vref_alternate
- (c, cmd_off,
- GPIO_SPIVREF_RSVD_H1VREF_H1_RST_ODL,
- GPIO_EN_SPIVREF_RSVD_H1VREF_H1_RST,
- VREF_MON_DIS_H1_RST_HELD, "H1 reset");
+ rv = command_vref_alternate(
+ c, cmd_off, GPIO_SPIVREF_RSVD_H1VREF_H1_RST_ODL,
+ GPIO_EN_SPIVREF_RSVD_H1VREF_H1_RST,
+ VREF_MON_DIS_H1_RST_HELD, "H1 reset");
}
return rv;
}
@@ -867,11 +830,9 @@ static int command_h1_reset(int argc, char **argv)
GPIO_EN_SPIVREF_RSVD_H1VREF_H1_RST,
VREF_MON_DIS_H1_RST_HELD, "H1 reset");
}
-DECLARE_CONSOLE_COMMAND(h1_reset, command_h1_reset,
- "[0|1|pulse]?",
+DECLARE_CONSOLE_COMMAND(h1_reset, command_h1_reset, "[0|1|pulse]?",
"Get/set the h1 reset state");
-
/******************************************************************************
* Vref detection logic
*/
@@ -880,14 +841,13 @@ DECLARE_CONSOLE_COMMAND(h1_reset, command_h1_reset,
static enum vref h1_vref;
static enum vref ec_vref;
-static int command_h1_vref_present(int argc, char **argv)
+static int command_h1_vref_present(int argc, const char **argv)
{
ccprintf("H1 Vref: %s\n", h1_vref ? "on" : "off");
return EC_SUCCESS;
}
-DECLARE_CONSOLE_COMMAND(h1_vref, command_h1_vref_present,
- "",
+DECLARE_CONSOLE_COMMAND(h1_vref, command_h1_vref_present, "",
"Get if the h1 vref is present");
/* Voltage thresholds for rail detection */
@@ -1033,11 +993,9 @@ static void update_vrefs_and_shifters(void)
void set_up_comparator(void)
{
/* Overwrite any previous values. This is the only comparator usage */
- STM32_COMP_CSR = STM32_COMP_CMP2HYST_HI |
- STM32_COMP_CMP2OUTSEL_NONE |
+ STM32_COMP_CSR = STM32_COMP_CMP2HYST_HI | STM32_COMP_CMP2OUTSEL_NONE |
STM32_COMP_CMP2INSEL_INM5 | /* Watch DAC_OUT2 (PA5) */
- STM32_COMP_CMP2MODE_LSPEED |
- STM32_COMP_CMP2EN;
+ STM32_COMP_CMP2MODE_LSPEED | STM32_COMP_CMP2EN;
/* Set Falling and Rising interrupts for COMP2 */
STM32_EXTI_FTSR |= EXTI_COMP2_EVENT;
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