diff options
Diffstat (limited to 'packages/linux/openzaurus-pxa27x-2.4.20-rmk2-embedix20050602/P03-C3000-SIGSTOP_FIX_041207.patch')
| -rw-r--r-- | packages/linux/openzaurus-pxa27x-2.4.20-rmk2-embedix20050602/P03-C3000-SIGSTOP_FIX_041207.patch | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/packages/linux/openzaurus-pxa27x-2.4.20-rmk2-embedix20050602/P03-C3000-SIGSTOP_FIX_041207.patch b/packages/linux/openzaurus-pxa27x-2.4.20-rmk2-embedix20050602/P03-C3000-SIGSTOP_FIX_041207.patch new file mode 100644 index 0000000000..332f52f939 --- /dev/null +++ b/packages/linux/openzaurus-pxa27x-2.4.20-rmk2-embedix20050602/P03-C3000-SIGSTOP_FIX_041207.patch @@ -0,0 +1,195 @@ +diff -Nur c3000_pre/linux/arch/arm/config.in c3000_work/linux/arch/arm/config.in +--- c3000_pre/linux/arch/arm/config.in 2004-12-05 22:17:18.000000000 +0900 ++++ c3000_work/linux/arch/arm/config.in 2004-12-06 01:13:03.000000000 +0900 +@@ -481,6 +481,7 @@ + if [ "$CONFIG_SL_CCCR_CHANGE" = "y" ]; then + bool 'Core voltage change enable (EXPERIMENTAL)' CONFIG_CHANGE_CORE_VOLT + fi ++ bool 'Fix send SIGSTOP to all tasks at suspend (EXPERIMENTAL)' CONFIG_SL_SIGSTOP_FIX + if [ "$CONFIG_ARCH_SHARP_SL" = "y" ]; then + define_bool CONFIG_BATT y + fi +diff -Nur c3000_pre/linux/arch/arm/mach-pxa/sharpsl_apm.c c3000_work/linux/arch/arm/mach-pxa/sharpsl_apm.c +--- c3000_pre/linux/arch/arm/mach-pxa/sharpsl_apm.c 2004-12-05 22:17:18.000000000 +0900 ++++ c3000_work/linux/arch/arm/mach-pxa/sharpsl_apm.c 2004-12-06 23:48:35.000000000 +0900 +@@ -75,6 +75,11 @@ + #include <asm/system.h> + #include <asm/hardware.h> + ++extern int errno; ++// unistd.h is included for the configuration ioctl stuff ++#define __KERNEL_SYSCALLS__ 1 ++#include <asm/unistd.h> ++ + #ifdef CONFIG_ARCH_SHARP_SL + #include <asm/irq.h> + #include <asm/arch/irqs.h> +@@ -363,6 +368,8 @@ + }; + #define ERROR_COUNT (sizeof(error_table)/sizeof(lookup_t)) + ++#define APP_NAME_LIST "/etc/suspend.lst" ++ + /* + * Function + */ +@@ -650,14 +657,81 @@ + struct task_struct* p = NULL; + struct task_struct* tsk = current; + ++#if defined(CONFIG_SL_SIGSTOP_FIX) ++ int fd,x; ++ mm_segment_t old_fs = get_fs (); ++ char line_buffer[256]; ++ + if (! spin_trylock(&lock)) + return; ++ ++ // Try opening the send sig application name list ++ ++ set_fs(KERNEL_DS); ++ fd = open(APP_NAME_LIST, O_RDONLY, 0); ++ set_fs(old_fs); + + /* send signal to all procs except for kernel-threads */ + read_lock(&tasklist_lock); ++ ++ if(fd < 0){ ++ for_each_task(p) { ++ struct siginfo si; ++ ++ if (p->pid == 1 || p->pid == tsk->pid || is_kernel_thread(p)) ++ continue; ++ if (!strcmp(p->comm,"cardmgr")) { //Send sig to cardmgr ++ si.si_signo = signo; ++ si.si_errno = 0; ++ si.si_code = SI_KERNEL; ++ si.si_pid = tsk->pid; ++ si.si_uid = tsk->uid; ++ send_sig_info(signo, &si, p); ++ } ++ } ++ ++ }else { ++ for(;;){ ++ memset(line_buffer, '\0', 256); ++ set_fs(KERNEL_DS); ++ for (x = 0; x < 256; x++) { ++ if (!read(fd, &line_buffer[x], 1)) ++ goto sig_send_done; ++ if (line_buffer[x] == '\n' || line_buffer[x] == '\r') ++ break; ++ } ++ set_fs(old_fs); ++ ++ for_each_task(p) { ++ struct siginfo si; ++ ++ if (p->pid == 1 || p->pid == tsk->pid || is_kernel_thread(p)) ++ continue; ++ if (!strncmp(p->comm,line_buffer,strlen(p->comm))) { //Send sig to cardmgr ++// printk ("Send SIG to application\n"); ++ si.si_signo = signo; ++ si.si_errno = 0; ++ si.si_code = SI_KERNEL; ++ si.si_pid = tsk->pid; ++ si.si_uid = tsk->uid; ++ send_sig_info(signo, &si, p); ++ } ++ } ++ } ++ sig_send_done: ++ ++ close(fd); ++ ++ } ++#else ++ if (! spin_trylock(&lock)) ++ return; ++ ++ /* send signal to all procs except for kernel-threads */ ++ read_lock(&tasklist_lock); + for_each_task(p) { + struct siginfo si; +- ++ + if (p->pid == 1 || p->pid == tsk->pid || is_kernel_thread(p)) + continue; + +@@ -667,7 +741,8 @@ + si.si_pid = tsk->pid; + si.si_uid = tsk->uid; + send_sig_info(signo, &si, p); +- } ++ } ++#endif + read_unlock(&tasklist_lock); + + if (signo == SIGSTOP) { +@@ -679,6 +754,58 @@ + schedule(); + set_current_state(state); + ++#if defined(CONFIG_SL_SIGSTOP_FIX) ++ set_fs(KERNEL_DS); ++ fd = open(APP_NAME_LIST, O_RDONLY, 0); ++ set_fs(old_fs); ++ ++ read_lock(&tasklist_lock); ++ if(fd < 0){ ++ for_each_task(p) { ++ if (p->pid == 1 || p->pid == tsk->pid || is_kernel_thread(p)) ++ continue; ++ if (!strcmp(p->comm,"cardmgr")) { ++// printk ("Check application stopped\n"); ++ ++ if (p->state != TASK_STOPPED) { ++ read_unlock(&tasklist_lock); ++ goto retry; ++ } ++ } ++ } ++ }else { ++ ++ for(;;){ ++ memset(line_buffer, '\0', 256); ++ old_fs = get_fs(); ++ set_fs(KERNEL_DS); ++ for (x = 0; x < 256; x++) { ++ if (!read(fd, &line_buffer[x], 1)) ++ goto sig_stop_done; ++ if (line_buffer[x] == '\n' || line_buffer[x] == '\r') ++ break; ++ } ++ set_fs(old_fs); ++ ++ for_each_task(p) { ++ if (p->pid == 1 || p->pid == tsk->pid || is_kernel_thread(p)) ++ continue; ++ if (!strncmp(p->comm,line_buffer,strlen(p->comm))) { ++ ++ if (p->state != TASK_STOPPED) { ++ read_unlock(&tasklist_lock); ++ goto retry; ++ } ++ } ++ } ++ } ++ sig_stop_done: ++ close(fd); ++ } ++ ++ read_unlock(&tasklist_lock); ++ } ++#else + read_lock(&tasklist_lock); + for_each_task(p) { + if (p->pid == 1 || p->pid == tsk->pid || is_kernel_thread(p)) +@@ -691,6 +818,7 @@ + } + read_unlock(&tasklist_lock); + } ++#endif + + spin_unlock(&lock); + } |