[PATCH] Accessiblity: speakup_ltlk: specifying the default driver parameters among the module params

[Osama Muhammad]

This is an enhancement which allows to specify the default driver
parameters among the module parameters.

Adding default variables to the speakup_ltlk module
allows to easily set that at boot, rather than
setting the sys variables after boot.
More details can be found here:
https://github.com/linux-speakup/speakup/issues/7

Signed-off-by: Osama Muhammad <osmtendev@xxxxxxxxx>

Reviewed-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

---
 drivers/accessibility/speakup/speakup_ltlk.c | 53 ++++++++++++++++----
 1 file changed, 42 insertions(+), 11 deletions(-)

diff --git a/drivers/accessibility/speakup/speakup_ltlk.c b/drivers/accessibility/speakup/speakup_ltlk.c
index f885cfaa27c8..1e279ae143bf 100644
--- a/drivers/accessibility/speakup/speakup_ltlk.c
+++ b/drivers/accessibility/speakup/speakup_ltlk.c
@@ -18,17 +18,28 @@
 
 static int synth_probe(struct spk_synth *synth);
 
-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 } },
+
+enum default_vars_id {
+	CAPS_START_ID = 0, CAPS_STOP_ID,
+	RATE_ID, PITCH_ID,
+	VOL_ID, TONE_ID, PUNCT_ID,
+	VOICE_ID, FREQUENCY_ID,
+	DIRECT_ID, V_LAST_VAR_ID,
+	NB_ID
+};
+
+
+static struct var_t vars[NB_ID] = {
+	[CAPS_START_ID] = { CAPS_START, .u.s = {"\x01+35p" } },
+	[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"\x01-35p" } },
+	[RATE_ID] = { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } },
+	[PITCH_ID] = { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } },
+	[VOL_ID] = { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
+	[TONE_ID] = { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
+	[PUNCT_ID] = { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } },
+	[VOICE_ID] = { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
+	[FREQUENCY_ID] = { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
+	[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
 	V_LAST_VAR
 };
 
@@ -160,10 +171,30 @@ static int synth_probe(struct spk_synth *synth)
 module_param_named(ser, synth_ltlk.ser, int, 0444);
 module_param_named(dev, synth_ltlk.dev_name, charp, 0444);
 module_param_named(start, synth_ltlk.startup, short, 0444);
+module_param_named(rate, vars[RATE_ID].u.n.default_val, int, 0444);
+module_param_named(pitch, vars[PITCH_ID].u.n.default_val, int, 0444);
+module_param_named(vol, vars[VOL_ID].u.n.default_val, int, 0444);
+module_param_named(tone, vars[TONE_ID].u.n.default_val, int, 0444);
+module_param_named(punct, vars[PUNCT_ID].u.n.default_val, int, 0444);
+module_param_named(voice, vars[VOICE_ID].u.n.default_val, int, 0444);
+module_param_named(frequency, vars[FREQUENCY_ID].u.n.default_val, int, 0444);
+module_param_named(direct, vars[DIRECT_ID].u.n.default_val, int, 0444);
+
+
+
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
+MODULE_PARM_DESC(rate, "Set the rate variable on load.");
+MODULE_PARM_DESC(pitch, "Set the pitch variable on load.");
+MODULE_PARM_DESC(vol, "Set the vol variable on load.");
+MODULE_PARM_DESC(tone, "Set the tone variable on load.");
+MODULE_PARM_DESC(punct, "Set the punct variable on load.");
+MODULE_PARM_DESC(voice, "Set the voice variable on load.");
+MODULE_PARM_DESC(frequency, "Set the frequency variable on load.");
+MODULE_PARM_DESC(direct, "Set the direct variable on load.");
+
 
 module_spk_synth(synth_ltlk);
 
-- 
2.25.1