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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:36 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:36 +0000 |
commit | 50ba0232fd5312410f1b65247e774244f89a628e (patch) | |
tree | fd8f2fc78e9e548af0ff9590276602ee6125be00 /drivers/tty/hvc/hvc_riscv_sbi.c | |
parent | Releasing progress-linux version 6.7.12-1~progress7.99u1. (diff) | |
download | linux-50ba0232fd5312410f1b65247e774244f89a628e.tar.xz linux-50ba0232fd5312410f1b65247e774244f89a628e.zip |
Merging upstream version 6.8.9.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/tty/hvc/hvc_riscv_sbi.c')
-rw-r--r-- | drivers/tty/hvc/hvc_riscv_sbi.c | 46 |
1 files changed, 35 insertions, 11 deletions
diff --git a/drivers/tty/hvc/hvc_riscv_sbi.c b/drivers/tty/hvc/hvc_riscv_sbi.c index 31f53fa77e..cede8a5725 100644 --- a/drivers/tty/hvc/hvc_riscv_sbi.c +++ b/drivers/tty/hvc/hvc_riscv_sbi.c @@ -15,9 +15,9 @@ #include "hvc_console.h" -static int hvc_sbi_tty_put(uint32_t vtermno, const char *buf, int count) +static ssize_t hvc_sbi_tty_put(uint32_t vtermno, const u8 *buf, size_t count) { - int i; + size_t i; for (i = 0; i < count; i++) sbi_console_putchar(buf[i]); @@ -25,9 +25,10 @@ static int hvc_sbi_tty_put(uint32_t vtermno, const char *buf, int count) return i; } -static int hvc_sbi_tty_get(uint32_t vtermno, char *buf, int count) +static ssize_t hvc_sbi_tty_get(uint32_t vtermno, u8 *buf, size_t count) { - int i, c; + size_t i; + int c; for (i = 0; i < count; i++) { c = sbi_console_getchar(); @@ -39,21 +40,44 @@ static int hvc_sbi_tty_get(uint32_t vtermno, char *buf, int count) return i; } -static const struct hv_ops hvc_sbi_ops = { +static const struct hv_ops hvc_sbi_v01_ops = { .get_chars = hvc_sbi_tty_get, .put_chars = hvc_sbi_tty_put, }; -static int __init hvc_sbi_init(void) +static ssize_t hvc_sbi_dbcn_tty_put(uint32_t vtermno, const u8 *buf, size_t count) { - return PTR_ERR_OR_ZERO(hvc_alloc(0, 0, &hvc_sbi_ops, 16)); + return sbi_debug_console_write(buf, count); } -device_initcall(hvc_sbi_init); -static int __init hvc_sbi_console_init(void) +static ssize_t hvc_sbi_dbcn_tty_get(uint32_t vtermno, u8 *buf, size_t count) { - hvc_instantiate(0, 0, &hvc_sbi_ops); + return sbi_debug_console_read(buf, count); +} + +static const struct hv_ops hvc_sbi_dbcn_ops = { + .put_chars = hvc_sbi_dbcn_tty_put, + .get_chars = hvc_sbi_dbcn_tty_get, +}; + +static int __init hvc_sbi_init(void) +{ + int err; + + if (sbi_debug_console_available) { + err = PTR_ERR_OR_ZERO(hvc_alloc(0, 0, &hvc_sbi_dbcn_ops, 256)); + if (err) + return err; + hvc_instantiate(0, 0, &hvc_sbi_dbcn_ops); + } else if (IS_ENABLED(CONFIG_RISCV_SBI_V01)) { + err = PTR_ERR_OR_ZERO(hvc_alloc(0, 0, &hvc_sbi_v01_ops, 256)); + if (err) + return err; + hvc_instantiate(0, 0, &hvc_sbi_v01_ops); + } else { + return -ENODEV; + } return 0; } -console_initcall(hvc_sbi_console_init); +device_initcall(hvc_sbi_init); |