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lib: sbi: Simplify console platform operations

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Instead of having console_putc() and console_getc() callbacks in
platform operations, it will be much simpler for console driver to
directly register these operations as device to the sbi_console
implementation.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Xiang W <wxjstz@126.com>
This commit is contained in:
Anup Patel
2021-04-21 18:03:50 +05:30
committed by Anup Patel
parent a3689db92a
commit 068ca086af
25 changed files with 96 additions and 134 deletions
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12
lib/utils/serial/shakti-uart.c
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@@ -23,14 +23,14 @@
static volatile void *uart_base;
void shakti_uart_putc(char ch)
static void shakti_uart_putc(char ch)
{
while((readw(uart_base + REG_STATUS) & UART_TX_FULL))
;
writeb(ch, uart_base + REG_TX);
}
int shakti_uart_getc(void)
static int shakti_uart_getc(void)
{
u16 status = readw(uart_base + REG_STATUS);
if (status & UART_RX_FULL)
@@ -38,11 +38,19 @@ int shakti_uart_getc(void)
return -1;
}
static struct sbi_console_device shakti_console = {
.name = "shakti_uart",
.console_putc = shakti_uart_putc,
.console_getc = shakti_uart_getc
};
int shakti_uart_init(unsigned long base, u32 in_freq, u32 baudrate)
{
uart_base = (volatile void *)base;
u16 baud = (u16)(in_freq/(16 * baudrate));
writew(baud, uart_base + REG_BAUD);
sbi_console_set_device(&shakti_console);
return 0;
}