diff options
Diffstat (limited to 'drivers/arm/pl011/aarch32/pl011_console.S')
| -rw-r--r-- | drivers/arm/pl011/aarch32/pl011_console.S | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/drivers/arm/pl011/aarch32/pl011_console.S b/drivers/arm/pl011/aarch32/pl011_console.S index 05c8250dc..9caeb0c69 100644 --- a/drivers/arm/pl011/aarch32/pl011_console.S +++ b/drivers/arm/pl011/aarch32/pl011_console.S @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -91,14 +91,14 @@ endfunc console_pl011_core_init /* ------------------------------------------------------- * int console_pl011_register(uintptr_t baseaddr, * uint32_t clock, uint32_t baud, - * console_pl011_t *console); + * console_t *console); * Function to initialize and register a new PL011 * console. Storage passed in for the console struct * *must* be persistent (i.e. not from the stack). * In: r0 - UART register base address * r1 - UART clock in Hz * r2 - Baud rate - * r3 - pointer to empty console_pl011_t struct + * r3 - pointer to empty console_t struct * Out: return 1 on success, 0 on error * Clobber list : r0, r1, r2 * ------------------------------------------------------- @@ -108,7 +108,7 @@ func console_pl011_register mov r4, r3 cmp r4, #0 beq register_fail - str r0, [r4, #CONSOLE_T_PL011_BASE] + str r0, [r4, #CONSOLE_T_BASE] bl console_pl011_core_init cmp r0, #0 @@ -159,7 +159,7 @@ putc_error: endfunc console_pl011_core_putc /* -------------------------------------------------------- - * int console_pl011_putc(int c, console_pl011_t *console) + * int console_pl011_putc(int c, console_t *console) * Function to output a character over the console. It * returns the character printed on success or -1 on error. * In: r0 - character to be printed @@ -173,7 +173,7 @@ func console_pl011_putc cmp r1, #0 ASM_ASSERT(ne) #endif /* ENABLE_ASSERTIONS */ - ldr r1, [r1, #CONSOLE_T_PL011_BASE] + ldr r1, [r1, #CONSOLE_T_BASE] b console_pl011_core_putc endfunc console_pl011_putc @@ -203,7 +203,7 @@ getc_error: endfunc console_pl011_core_getc /* ------------------------------------------------ - * int console_pl011_getc(console_pl011_t *console) + * int console_pl011_getc(console_t *console) * Function to get a character from the console. * It returns the character grabbed on success * or -1 if no character is available. @@ -217,22 +217,24 @@ func console_pl011_getc cmp r0, #0 ASM_ASSERT(ne) #endif /* ENABLE_ASSERTIONS */ - ldr r0, [r0, #CONSOLE_T_PL011_BASE] + ldr r0, [r0, #CONSOLE_T_BASE] b console_pl011_core_getc endfunc console_pl011_getc /* --------------------------------------------- - * int console_core_flush(uintptr_t base_addr) + * void console_core_flush(uintptr_t base_addr) * Function to force a write of all buffered * data that hasn't been output. * In : r0 - console base address - * Out : return -1 on error else return 0. + * Out : void * Clobber list : r0, r1 * --------------------------------------------- */ func console_pl011_core_flush +#if ENABLE_ASSERTIONS cmp r0, #0 - beq flush_error + ASM_ASSERT(ne) +#endif /* ENABLE_ASSERTIONS */ 1: /* Loop while the transmit FIFO is busy */ @@ -240,19 +242,15 @@ func console_pl011_core_flush tst r1, #PL011_UARTFR_BUSY bne 1b - mov r0, #0 - bx lr -flush_error: - mov r0, #-1 bx lr endfunc console_pl011_core_flush /* --------------------------------------------- - * int console_pl011_flush(console_pl011_t *console) + * void console_pl011_flush(console_t *console) * Function to force a write of all buffered * data that hasn't been output. * In : r0 - pointer to console_t structure - * Out : return -1 on error else return 0. + * Out : void * Clobber list: r0, r1 * --------------------------------------------- */ @@ -261,6 +259,6 @@ func console_pl011_flush cmp r0, #0 ASM_ASSERT(ne) #endif /* ENABLE_ASSERTIONS */ - ldr r0, [r0, #CONSOLE_T_PL011_BASE] + ldr r0, [r0, #CONSOLE_T_BASE] b console_pl011_core_flush endfunc console_pl011_flush |