From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/arch/xtensa/platforms/iss/include/platform/simcall.h | 12 +++++-------
1 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/kernel/arch/xtensa/platforms/iss/include/platform/simcall.h b/kernel/arch/xtensa/platforms/iss/include/platform/simcall.h
index 2ba4585..f42870a 100644
--- a/kernel/arch/xtensa/platforms/iss/include/platform/simcall.h
+++ b/kernel/arch/xtensa/platforms/iss/include/platform/simcall.h
@@ -66,19 +66,17 @@
static inline int __simc(int a, int b, int c, int d)
{
- int ret;
register int a1 asm("a2") = a;
register int b1 asm("a3") = b;
register int c1 asm("a4") = c;
register int d1 asm("a5") = d;
__asm__ __volatile__ (
"simcall\n"
- "mov %0, a2\n"
- "mov %1, a3\n"
- : "=a" (ret), "=a" (errno), "+r"(a1), "+r"(b1)
+ : "+r"(a1), "+r"(b1)
: "r"(c1), "r"(d1)
: "memory");
- return ret;
+ errno = b1;
+ return a1;
}
static inline int simc_exit(int exit_code)
@@ -113,9 +111,9 @@
static inline int simc_poll(int fd)
{
- struct timeval tv = { .tv_sec = 0, .tv_usec = 0 };
+ long timeval[2] = { 0, 0 };
- return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&tv);
+ return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&timeval);
}
static inline int simc_lseek(int fd, uint32_t off, int whence)
--
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