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console: Add console for GDB

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Connection of UARTs to GDB stub got lost in the console transition
process, bring it back. In theory, GDB stub should work also over
usbdebug, but that solution is not really tested at all yet.

Change-Id: I90e05e8132889e788b92e055ee191f35add43bbc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5343
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This commit is contained in:
Kyösti Mälkki
2014-04-04 15:05:28 +03:00
parent c009601f29
commit f2f7f03aff
6 changed files with 64 additions and 4 deletions
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6
src/include/console/streams.h
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@@ -22,6 +22,12 @@ void console_hw_init(void);
void console_tx_byte(unsigned char byte);
void console_tx_flush(void);
/* For remote GDB debugging. */
void gdb_hw_init(void);
void gdb_tx_byte(unsigned char byte);
void gdb_tx_flush(void);
unsigned char gdb_rx_byte(void);
/* Helpers for ROMCC console. */
void console_tx_nibble(unsigned nibble);
void console_tx_hex8(unsigned char value);

8
src/include/console/uart.h
View File

@@ -69,6 +69,14 @@ static inline void __uart_tx_byte(u8 data) {}
static inline void __uart_tx_flush(void) {}
#endif
#if CONFIG_GDB_STUB && (ENV_ROMSTAGE || ENV_RAMSTAGE)
#define CONFIG_UART_FOR_GDB CONFIG_UART_FOR_CONSOLE
static inline void __gdb_hw_init(void) { uart_init(CONFIG_UART_FOR_GDB); }
static inline void __gdb_tx_byte(u8 data) { uart_tx_byte(CONFIG_UART_FOR_GDB, data); }
static inline void __gdb_tx_flush(void) { uart_tx_flush(CONFIG_UART_FOR_GDB); }
static inline u8 __gdb_rx_byte(void) { return uart_rx_byte(CONFIG_UART_FOR_GDB); }
#endif
#endif /* __ROMCC__ */
#endif /* CONSOLE_UART_H */

16
src/include/console/usb.h
View File

@@ -34,14 +34,26 @@ int usb_can_rx_byte(int idx);
#define __CONSOLE_USB_ENABLE__ CONFIG_CONSOLE_USB && \
((ENV_ROMSTAGE && CONFIG_USBDEBUG_IN_ROMSTAGE) || ENV_RAMSTAGE)
#define USB_PIPE_FOR_CONSOLE 0
#define USB_PIPE_FOR_GDB 0
#if __CONSOLE_USB_ENABLE__
static inline void __usbdebug_init(void) { usbdebug_init(); }
static inline void __usb_tx_byte(u8 data) { usb_tx_byte(0, data); }
static inline void __usb_tx_flush(void) { usb_tx_flush(0); }
static inline void __usb_tx_byte(u8 data) { usb_tx_byte(USB_PIPE_FOR_CONSOLE, data); }
static inline void __usb_tx_flush(void) { usb_tx_flush(USB_PIPE_FOR_CONSOLE); }
#else
static inline void __usbdebug_init(void) {}
static inline void __usb_tx_byte(u8 data) {}
static inline void __usb_tx_flush(void) {}
#endif
/* */
#if 0 && CONFIG_GDB_STUB && \
((ENV_ROMSTAGE && CONFIG_USBDEBUG_IN_ROMSTAGE) || ENV_RAMSTAGE)
static inline void __gdb_hw_init(void) { usbdebug_init(); }
static inline void __gdb_tx_byte(u8 data) { usb_tx_byte(USB_PIPE_FOR_GDB, data); }
static inline void __gdb_tx_flush(void) { usb_tx_flush(USB_PIPE_FOR_GDB); }
static inline u8 __gdb_rx_byte(void) { return usb_rx_byte(USB_PIPE_FOR_GDB); }
#endif
#endif /* _CONSOLE_USB_H_ */