staging: speakup: speakup_dtlk.c: style fixes

* Clean this file based on reports from checkpatch.pl.
* Replace function-like macros with inline functions.
* Simplify some boolean expressions.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/speakup/speakup_dtlk.c b/drivers/staging/speakup/speakup_dtlk.c
index b907c4f27e8dfc57a1a18008e0e08d4fc4f80ebe..97bc476746cd511f37200e38def4c282e72b9ae5 100644 (file)
--- a/drivers/staging/speakup/speakup_dtlk.c
+++ b/drivers/staging/speakup/speakup_dtlk.c
@@ -35,9 +35,6 @@
 
 #define DRV_VERSION "2.10"
 #define PROCSPEECH 0x00
-#define synth_readable() ((synth_status = inb_p(speakup_info.port_tts + UART_RX)) & TTS_READABLE)
-#define synth_writable() ((synth_status = inb_p(speakup_info.port_tts + UART_RX)) & TTS_WRITABLE)
-#define synth_full() ((synth_status = inb_p(speakup_info.port_tts + UART_RX)) & TTS_ALMOST_FULL)
 
 static int synth_probe(struct spk_synth *synth);
 static void dtlk_release(void);
@@ -47,21 +44,22 @@ static void synth_flush(struct spk_synth *synth);
 
 static int synth_lpc;
 static int port_forced;
-static unsigned int synth_portlist[] =
-               { 0x25e, 0x29e, 0x2de, 0x31e, 0x35e, 0x39e, 0 };
+static unsigned int synth_portlist[] = {
+                0x25e, 0x29e, 0x2de, 0x31e, 0x35e, 0x39e, 0
+};
 static u_char synth_status;
 
 static struct var_t vars[] = {
-       { CAPS_START, .u.s = {"\x01+35p" }},
-       { CAPS_STOP, .u.s = {"\x01-35p" }},
-       { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL }},
-       { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL }},
-       { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL }},
-       { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL }},
-       { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL }},
-       { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL }},
-       { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL }},
-       { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL }},
+       { CAPS_START, .u.s = {"\x01+35p" } },
+       { CAPS_STOP, .u.s = {"\x01-35p" } },
+       { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } },
+       { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } },
+       { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
+       { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
+       { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } },
+       { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
+       { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
+       { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
        V_LAST_VAR
 };
 
@@ -155,17 +153,35 @@ static struct spk_synth synth_dtlk = {
        },
 };
 
+static inline bool synth_readable(void)
+{
+       synth_status = inb_p(speakup_info.port_tts + UART_RX);
+       return (synth_status & TTS_READABLE) != 0;
+}
+
+static inline bool synth_writable(void)
+{
+       synth_status = inb_p(speakup_info.port_tts + UART_RX);
+       return (synth_status & TTS_WRITABLE) != 0;
+}
+
+static inline bool synth_full(void)
+{
+       synth_status = inb_p(speakup_info.port_tts + UART_RX);
+       return (synth_status & TTS_ALMOST_FULL) != 0;
+}
+
 static void spk_out(const char ch)
 {
        int timeout = SPK_XMITR_TIMEOUT;
-       while (synth_writable() == 0) {
+       while (!synth_writable()) {
                if (!--timeout)
                        break;
                udelay(1);
        }
        outb_p(ch, speakup_info.port_tts);
        timeout = SPK_XMITR_TIMEOUT;
-       while (synth_writable() != 0) {
+       while (synth_writable()) {
                if (!--timeout)
                        break;
                udelay(1);
@@ -244,18 +260,18 @@ static const char *synth_immediate(struct spk_synth *synth, const char *buf)
 static void synth_flush(struct spk_synth *synth)
 {
        outb_p(SYNTH_CLEAR, speakup_info.port_tts);
-       while (synth_writable() != 0)
+       while (synth_writable())
                cpu_relax();
 }
 
 static char synth_read_tts(void)
 {
        u_char ch;
-       while (synth_readable() == 0)
+       while (!synth_readable())
                cpu_relax();
        ch = synth_status & 0x7f;
        outb_p(ch, speakup_info.port_tts);
-       while (synth_readable() != 0)
+       while (synth_readable())
                cpu_relax();
        return (char) ch;
 }