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proc tty: switch ircomm to ->proc_fops
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan
Linus Torvalds
parent
6fd69d3cf1
commit
3d30417682
1 changed files with 131 additions and 111 deletions
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@ -34,6 +34,7 @@
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/sched.h>
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#include <linux/seq_file.h>
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#include <linux/termios.h>
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#include <linux/tty.h>
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#include <linux/interrupt.h>
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@ -72,8 +73,7 @@ static int ircomm_tty_control_indication(void *instance, void *sap,
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static void ircomm_tty_flow_indication(void *instance, void *sap,
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LOCAL_FLOW cmd);
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#ifdef CONFIG_PROC_FS
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static int ircomm_tty_read_proc(char *buf, char **start, off_t offset, int len,
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int *eof, void *unused);
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static const struct file_operations ircomm_tty_proc_fops;
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#endif /* CONFIG_PROC_FS */
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static struct tty_driver *driver;
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@ -98,7 +98,7 @@ static const struct tty_operations ops = {
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.hangup = ircomm_tty_hangup,
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.wait_until_sent = ircomm_tty_wait_until_sent,
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#ifdef CONFIG_PROC_FS
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.read_proc = ircomm_tty_read_proc,
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.proc_fops = &ircomm_tty_proc_fops,
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#endif /* CONFIG_PROC_FS */
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};
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@ -1245,150 +1245,170 @@ static void ircomm_tty_flow_indication(void *instance, void *sap,
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}
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#ifdef CONFIG_PROC_FS
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static int ircomm_tty_line_info(struct ircomm_tty_cb *self, char *buf)
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static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
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{
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int ret=0;
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char sep;
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ret += sprintf(buf+ret, "State: %s\n", ircomm_tty_state[self->state]);
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seq_printf(m, "State: %s\n", ircomm_tty_state[self->state]);
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ret += sprintf(buf+ret, "Service type: ");
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seq_puts(m, "Service type: ");
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if (self->service_type & IRCOMM_9_WIRE)
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ret += sprintf(buf+ret, "9_WIRE");
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seq_puts(m, "9_WIRE");
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else if (self->service_type & IRCOMM_3_WIRE)
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ret += sprintf(buf+ret, "3_WIRE");
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seq_puts(m, "3_WIRE");
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else if (self->service_type & IRCOMM_3_WIRE_RAW)
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ret += sprintf(buf+ret, "3_WIRE_RAW");
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seq_puts(m, "3_WIRE_RAW");
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else
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ret += sprintf(buf+ret, "No common service type!\n");
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ret += sprintf(buf+ret, "\n");
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seq_puts(m, "No common service type!\n");
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seq_putc(m, '\n');
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ret += sprintf(buf+ret, "Port name: %s\n", self->settings.port_name);
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seq_printf(m, "Port name: %s\n", self->settings.port_name);
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ret += sprintf(buf+ret, "DTE status: ");
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if (self->settings.dte & IRCOMM_RTS)
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ret += sprintf(buf+ret, "RTS|");
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if (self->settings.dte & IRCOMM_DTR)
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ret += sprintf(buf+ret, "DTR|");
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if (self->settings.dte)
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ret--; /* remove the last | */
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ret += sprintf(buf+ret, "\n");
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seq_printf(m, "DTE status:");
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sep = ' ';
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if (self->settings.dte & IRCOMM_RTS) {
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seq_printf(m, "%cRTS", sep);
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sep = '|';
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}
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if (self->settings.dte & IRCOMM_DTR) {
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seq_printf(m, "%cDTR", sep);
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sep = '|';
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}
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seq_putc(m, '\n');
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ret += sprintf(buf+ret, "DCE status: ");
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if (self->settings.dce & IRCOMM_CTS)
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ret += sprintf(buf+ret, "CTS|");
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if (self->settings.dce & IRCOMM_DSR)
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ret += sprintf(buf+ret, "DSR|");
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if (self->settings.dce & IRCOMM_CD)
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ret += sprintf(buf+ret, "CD|");
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if (self->settings.dce & IRCOMM_RI)
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ret += sprintf(buf+ret, "RI|");
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if (self->settings.dce)
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ret--; /* remove the last | */
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ret += sprintf(buf+ret, "\n");
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seq_puts(m, "DCE status:");
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sep = ' ';
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if (self->settings.dce & IRCOMM_CTS) {
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seq_printf(m, "%cCTS", sep);
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sep = '|';
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}
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if (self->settings.dce & IRCOMM_DSR) {
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seq_printf(m, "%cDSR", sep);
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sep = '|';
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}
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if (self->settings.dce & IRCOMM_CD) {
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seq_printf(m, "%cCD", sep);
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sep = '|';
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}
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if (self->settings.dce & IRCOMM_RI) {
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seq_printf(m, "%cRI", sep);
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sep = '|';
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}
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seq_putc(m, '\n');
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ret += sprintf(buf+ret, "Configuration: ");
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seq_puts(m, "Configuration: ");
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if (!self->settings.null_modem)
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ret += sprintf(buf+ret, "DTE <-> DCE\n");
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seq_puts(m, "DTE <-> DCE\n");
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else
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ret += sprintf(buf+ret,
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"DTE <-> DTE (null modem emulation)\n");
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seq_puts(m, "DTE <-> DTE (null modem emulation)\n");
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ret += sprintf(buf+ret, "Data rate: %d\n", self->settings.data_rate);
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seq_printf(m, "Data rate: %d\n", self->settings.data_rate);
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ret += sprintf(buf+ret, "Flow control: ");
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if (self->settings.flow_control & IRCOMM_XON_XOFF_IN)
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ret += sprintf(buf+ret, "XON_XOFF_IN|");
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if (self->settings.flow_control & IRCOMM_XON_XOFF_OUT)
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ret += sprintf(buf+ret, "XON_XOFF_OUT|");
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if (self->settings.flow_control & IRCOMM_RTS_CTS_IN)
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ret += sprintf(buf+ret, "RTS_CTS_IN|");
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if (self->settings.flow_control & IRCOMM_RTS_CTS_OUT)
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ret += sprintf(buf+ret, "RTS_CTS_OUT|");
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if (self->settings.flow_control & IRCOMM_DSR_DTR_IN)
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ret += sprintf(buf+ret, "DSR_DTR_IN|");
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if (self->settings.flow_control & IRCOMM_DSR_DTR_OUT)
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ret += sprintf(buf+ret, "DSR_DTR_OUT|");
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if (self->settings.flow_control & IRCOMM_ENQ_ACK_IN)
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ret += sprintf(buf+ret, "ENQ_ACK_IN|");
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if (self->settings.flow_control & IRCOMM_ENQ_ACK_OUT)
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ret += sprintf(buf+ret, "ENQ_ACK_OUT|");
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if (self->settings.flow_control)
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ret--; /* remove the last | */
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ret += sprintf(buf+ret, "\n");
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seq_puts(m, "Flow control:");
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sep = ' ';
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if (self->settings.flow_control & IRCOMM_XON_XOFF_IN) {
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seq_printf(m, "%cXON_XOFF_IN", sep);
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sep = '|';
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}
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if (self->settings.flow_control & IRCOMM_XON_XOFF_OUT) {
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seq_printf(m, "%cXON_XOFF_OUT", sep);
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sep = '|';
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}
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if (self->settings.flow_control & IRCOMM_RTS_CTS_IN) {
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seq_printf(m, "%cRTS_CTS_IN", sep);
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sep = '|';
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}
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if (self->settings.flow_control & IRCOMM_RTS_CTS_OUT) {
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seq_printf(m, "%cRTS_CTS_OUT", sep);
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sep = '|';
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}
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if (self->settings.flow_control & IRCOMM_DSR_DTR_IN) {
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seq_printf(m, "%cDSR_DTR_IN", sep);
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sep = '|';
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}
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if (self->settings.flow_control & IRCOMM_DSR_DTR_OUT) {
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seq_printf(m, "%cDSR_DTR_OUT", sep);
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sep = '|';
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}
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if (self->settings.flow_control & IRCOMM_ENQ_ACK_IN) {
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seq_printf(m, "%cENQ_ACK_IN", sep);
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sep = '|';
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}
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if (self->settings.flow_control & IRCOMM_ENQ_ACK_OUT) {
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seq_printf(m, "%cENQ_ACK_OUT", sep);
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sep = '|';
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}
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seq_putc(m, '\n');
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ret += sprintf(buf+ret, "Flags: ");
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if (self->flags & ASYNC_CTS_FLOW)
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ret += sprintf(buf+ret, "ASYNC_CTS_FLOW|");
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if (self->flags & ASYNC_CHECK_CD)
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ret += sprintf(buf+ret, "ASYNC_CHECK_CD|");
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if (self->flags & ASYNC_INITIALIZED)
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ret += sprintf(buf+ret, "ASYNC_INITIALIZED|");
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if (self->flags & ASYNC_LOW_LATENCY)
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ret += sprintf(buf+ret, "ASYNC_LOW_LATENCY|");
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if (self->flags & ASYNC_CLOSING)
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ret += sprintf(buf+ret, "ASYNC_CLOSING|");
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if (self->flags & ASYNC_NORMAL_ACTIVE)
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ret += sprintf(buf+ret, "ASYNC_NORMAL_ACTIVE|");
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if (self->flags)
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ret--; /* remove the last | */
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ret += sprintf(buf+ret, "\n");
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seq_puts(m, "Flags:");
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sep = ' ';
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if (self->flags & ASYNC_CTS_FLOW) {
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seq_printf(m, "%cASYNC_CTS_FLOW", sep);
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sep = '|';
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}
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if (self->flags & ASYNC_CHECK_CD) {
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seq_printf(m, "%cASYNC_CHECK_CD", sep);
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sep = '|';
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}
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if (self->flags & ASYNC_INITIALIZED) {
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seq_printf(m, "%cASYNC_INITIALIZED", sep);
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sep = '|';
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}
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if (self->flags & ASYNC_LOW_LATENCY) {
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seq_printf(m, "%cASYNC_LOW_LATENCY", sep);
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sep = '|';
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}
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if (self->flags & ASYNC_CLOSING) {
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seq_printf(m, "%cASYNC_CLOSING", sep);
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sep = '|';
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}
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if (self->flags & ASYNC_NORMAL_ACTIVE) {
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seq_printf(m, "%cASYNC_NORMAL_ACTIVE", sep);
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sep = '|';
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}
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seq_putc(m, '\n');
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ret += sprintf(buf+ret, "Role: %s\n", self->client ?
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"client" : "server");
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ret += sprintf(buf+ret, "Open count: %d\n", self->open_count);
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ret += sprintf(buf+ret, "Max data size: %d\n", self->max_data_size);
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ret += sprintf(buf+ret, "Max header size: %d\n", self->max_header_size);
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seq_printf(m, "Role: %s\n", self->client ? "client" : "server");
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seq_printf(m, "Open count: %d\n", self->open_count);
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seq_printf(m, "Max data size: %d\n", self->max_data_size);
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seq_printf(m, "Max header size: %d\n", self->max_header_size);
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if (self->tty)
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ret += sprintf(buf+ret, "Hardware: %s\n",
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seq_printf(m, "Hardware: %s\n",
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self->tty->hw_stopped ? "Stopped" : "Running");
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ret += sprintf(buf+ret, "\n");
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return ret;
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}
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/*
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* Function ircomm_tty_read_proc (buf, start, offset, len, eof, unused)
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*
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*
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*
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*/
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static int ircomm_tty_read_proc(char *buf, char **start, off_t offset, int len,
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int *eof, void *unused)
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static int ircomm_tty_proc_show(struct seq_file *m, void *v)
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{
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struct ircomm_tty_cb *self;
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int count = 0, l;
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off_t begin = 0;
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unsigned long flags;
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spin_lock_irqsave(&ircomm_tty->hb_spinlock, flags);
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self = (struct ircomm_tty_cb *) hashbin_get_first(ircomm_tty);
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while ((self != NULL) && (count < 4000)) {
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while (self != NULL) {
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if (self->magic != IRCOMM_TTY_MAGIC)
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break;
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l = ircomm_tty_line_info(self, buf + count);
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count += l;
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if (count+begin > offset+len)
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goto done;
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if (count+begin < offset) {
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begin += count;
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count = 0;
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}
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ircomm_tty_line_info(self, m);
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self = (struct ircomm_tty_cb *) hashbin_get_next(ircomm_tty);
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}
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*eof = 1;
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done:
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spin_unlock_irqrestore(&ircomm_tty->hb_spinlock, flags);
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if (offset >= count+begin)
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return 0;
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*start = buf + (offset-begin);
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return ((len < begin+count-offset) ? len : begin+count-offset);
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return 0;
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}
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static int ircomm_tty_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, ircomm_tty_proc_show, NULL);
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}
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static const struct file_operations ircomm_tty_proc_fops = {
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.owner = THIS_MODULE,
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.open = ircomm_tty_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif /* CONFIG_PROC_FS */
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MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>");
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