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f32fcbedbe
Switch character types to u8 and sizes to size_t. To conform to characters/sizes in the rest of the tty layer. Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Amit Shah <amit@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: linuxppc-dev@lists.ozlabs.org Cc: virtualization@lists.linux.dev Cc: linux-riscv@lists.infradead.org Link: https://lore.kernel.org/r/20231206073712.17776-13-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
84 lines
1.4 KiB
C
84 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* udbg interface to hvc_console.c
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*
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* (C) Copyright David Gibson, IBM Corporation 2008.
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*/
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#include <linux/console.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/moduleparam.h>
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#include <linux/types.h>
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#include <linux/irq.h>
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#include <asm/udbg.h>
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#include "hvc_console.h"
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static struct hvc_struct *hvc_udbg_dev;
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static ssize_t hvc_udbg_put(uint32_t vtermno, const u8 *buf, size_t count)
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{
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size_t i;
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for (i = 0; i < count && udbg_putc; i++)
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udbg_putc(buf[i]);
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return i;
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}
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static ssize_t hvc_udbg_get(uint32_t vtermno, u8 *buf, size_t count)
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{
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size_t i;
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int c;
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if (!udbg_getc_poll)
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return 0;
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for (i = 0; i < count; i++) {
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if ((c = udbg_getc_poll()) == -1)
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break;
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buf[i] = c;
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}
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return i;
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}
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static const struct hv_ops hvc_udbg_ops = {
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.get_chars = hvc_udbg_get,
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.put_chars = hvc_udbg_put,
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};
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static int __init hvc_udbg_init(void)
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{
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struct hvc_struct *hp;
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if (!udbg_putc)
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return -ENODEV;
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BUG_ON(hvc_udbg_dev);
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hp = hvc_alloc(0, 0, &hvc_udbg_ops, 16);
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if (IS_ERR(hp))
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return PTR_ERR(hp);
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hvc_udbg_dev = hp;
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return 0;
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}
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device_initcall(hvc_udbg_init);
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static int __init hvc_udbg_console_init(void)
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{
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if (!udbg_putc)
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return -ENODEV;
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hvc_instantiate(0, 0, &hvc_udbg_ops);
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add_preferred_console("hvc", 0, NULL);
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return 0;
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}
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console_initcall(hvc_udbg_console_init);
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