[PATCH] bsp/beagle: Update console to new Termios device API.
G S Niteesh Babu
niteesh.gs at gmail.com
Sun Mar 15 19:27:36 UTC 2020
This patch updates the console to use new Termios device API.
Update #3034
---
bsps/arm/beagle/console/console-config.c | 66 +++++++++++++++---------
1 file changed, 41 insertions(+), 25 deletions(-)
diff --git a/bsps/arm/beagle/console/console-config.c b/bsps/arm/beagle/console/console-config.c
index 78af5f6a93..860a44cb00 100644
--- a/bsps/arm/beagle/console/console-config.c
+++ b/bsps/arm/beagle/console/console-config.c
@@ -41,6 +41,8 @@
#define TX_FIFO_E (1<<5)
#define RX_FIFO_E (1<<0)
+#define UART0 "/dev/ttyS0"
+
static uint8_t beagle_uart_get_register(uintptr_t addr, uint8_t i)
{
uint8_t v;
@@ -65,34 +67,27 @@ static void beagle_uart_set_register(uintptr_t addr, uint8_t i, uint8_t val)
reg [i] = val;
}
-console_tbl Console_Configuration_Ports [] = {
- {
- .sDeviceName = "/dev/ttyS0",
- .deviceType = SERIAL_NS16550,
-#if CONSOLE_POLLED /* option to facilitate running the tests */
- .pDeviceFns = &ns16550_fns_polled,
-#else
- .pDeviceFns = &ns16550_fns,
-#endif
- .ulMargin = 16,
- .ulHysteresis = 8,
- .pDeviceParams = (void *) CONSOLE_BAUD,
- .ulCtrlPort1 = BSP_CONSOLE_UART_BASE,
- .ulDataPort = BSP_CONSOLE_UART_BASE,
- .ulIntVector = BSP_CONSOLE_UART_IRQ,
- .getRegister = beagle_uart_get_register,
- .setRegister = beagle_uart_set_register,
- .ulClock = UART_CLOCK, /* 48MHz base clock */
- },
-};
-
-unsigned long Console_Configuration_Count = 1;
+ns16550_context uart_context;
static int init_needed = 1; // don't rely on bss being 0
static void beagle_console_init(void)
{
if(init_needed) {
+ ns16550_context *ctx;
+
+ /*
+ * Don't rely on BSS being 0
+ */
+ memset(&uart_context, 0, sizeof(uart_context));
+ ctx = &uart_context;
+
+ ctx->port = BSP_CONSOLE_UART_BASE;
+ ctx->get_reg = beagle_uart_get_register;
+ ctx->set_reg = beagle_uart_set_register;
+ ctx->clock = UART_CLOCK;
+ ctx->initial_baud = CONSOLE_BAUD;
+
const uint32_t div = UART_CLOCK / 16 / CONSOLE_BAUD;
CONSOLE_SYSC = 2;
while ((CONSOLE_SYSS & 1) == 0)
@@ -120,6 +115,8 @@ static void beagle_console_init(void)
CONSOLE_LCR = 0x03;
CONSOLE_ACR = 0x00;
init_needed = 0;
+
+ BSP_output_char = uart_write_polled;
}
}
@@ -127,15 +124,17 @@ static void beagle_console_init(void)
static void uart_write_polled( char c )
{
- if(init_needed) beagle_console_init();
-
while( ( CONSOLE_LSR & TX_FIFO_E ) == 0 )
;
CONSOLE_THR8 = c;
}
static void _BSP_put_char( char c ) {
- uart_write_polled( c );
+
+ if ( init_needed ) {
+ beagle_console_init();
+ }
+ uart_write_polled( c );
}
static int _BSP_get_char(void)
@@ -147,6 +146,23 @@ static int _BSP_get_char(void)
}
}
+rtems_status_code console_initialize(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *arg
+)
+{
+ rtems_termios_initialize();
+ rtems_termios_device_install(
+ UART0,
+ &ns16550_handler_polled,
+ NULL,
+ &uart_context.base
+ );
+
+ return RTEMS_SUCCESSFUL;
+}
+
BSP_output_char_function_type BSP_output_char = _BSP_put_char;
BSP_polling_getchar_function_type BSP_poll_char = _BSP_get_char;
--
2.17.1
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