lib: sbi: Simplify console platform operations

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>

include/sbi/sbi_console.h

@@ -12,6 +12,17 @@
 
 #include <sbi/sbi_types.h>
 
+struct sbi_console_device {
+	/** Name of the console device */
+	char name[32];
+
+	/** Write a character to the console output */
+	void (*console_putc)(char ch);
+
+	/** Read a character from the console input */
+	int (*console_getc)(void);
+};
+
 #define __printf(a, b) __attribute__((format(printf, a, b)))
 
 bool sbi_isprintable(char ch);
@@ -32,6 +43,10 @@ int __printf(1, 2) sbi_printf(const char *format, ...);
 
 int __printf(1, 2) sbi_dprintf(const char *format, ...);
 
+const struct sbi_console_device *sbi_console_get_device(void);
+
+void sbi_console_set_device(const struct sbi_console_device *dev);
+
 struct sbi_scratch;
 
 int sbi_console_init(struct sbi_scratch *scratch);

include/sbi/sbi_platform.h

@@ -95,10 +95,6 @@ struct sbi_platform_operations {
 	/** Initialize (or populate) domains for the platform */
 	int (*domains_init)(void);
 
-	/** Write a character to the platform console output */
-	void (*console_putc)(char ch);
-	/** Read a character from the platform console input */
-	int (*console_getc)(void);
 	/** Initialize the platform console */
 	int (*console_init)(void);
 
@@ -496,33 +492,6 @@ static inline int sbi_platform_domains_init(const struct sbi_platform *plat)
 	return 0;
 }
 
-/**
- * Write a character to the platform console output
- *
- * @param plat pointer to struct sbi_platform
- * @param ch character to write
- */
-static inline void sbi_platform_console_putc(const struct sbi_platform *plat,
-						char ch)
-{
-	if (plat && sbi_platform_ops(plat)->console_putc)
-		sbi_platform_ops(plat)->console_putc(ch);
-}
-
-/**
- * Read a character from the platform console input
- *
- * @param plat pointer to struct sbi_platform
- *
- * @return character read from console input
- */
-static inline int sbi_platform_console_getc(const struct sbi_platform *plat)
-{
-	if (plat && sbi_platform_ops(plat)->console_getc)
-		return sbi_platform_ops(plat)->console_getc();
-	return -1;
-}
-
 /**
  * Initialize the platform console
  *

include/sbi_utils/serial/fdt_serial.h

@@ -15,14 +15,8 @@
 struct fdt_serial {
 	const struct fdt_match *match_table;
 	int (*init)(void *fdt, int nodeoff, const struct fdt_match *match);
-	void (*putc)(char ch);
-	int (*getc)(void);
 };
 
-void fdt_serial_putc(char ch);
-
-int fdt_serial_getc(void);
-
 int fdt_serial_init(void);
 
 #endif

include/sbi_utils/serial/shakti-uart.h

@@ -9,10 +9,6 @@
 
 #include <sbi/sbi_types.h>
 
-void shakti_uart_putc(char ch);
-
-int shakti_uart_getc(void);
-
 int shakti_uart_init(unsigned long base, u32 in_freq, u32 baudrate);
 
 #endif

include/sbi_utils/serial/sifive-uart.h

@@ -12,10 +12,6 @@
 
 #include <sbi/sbi_types.h>
 
-void sifive_uart_putc(char ch);
-
-int sifive_uart_getc(void);
-
 int sifive_uart_init(unsigned long base, u32 in_freq, u32 baudrate);
 
 #endif

include/sbi_utils/serial/uart8250.h

@@ -12,10 +12,6 @@
 
 #include <sbi/sbi_types.h>
 
-void uart8250_putc(char ch);
-
-int uart8250_getc(void);
-
 int uart8250_init(unsigned long base, u32 in_freq, u32 baudrate, u32 reg_shift,
 		  u32 reg_width);
 

include/sbi_utils/sys/htif.h

@@ -10,9 +10,7 @@
 
 #include <sbi/sbi_types.h>
 
-void htif_putc(char ch);
-
-int htif_getc(void);
+int htif_serial_init(void);
 
 int htif_system_reset_check(u32 type, u32 reason);