Accessiblity: speakup_keypc: specifying the default driver parameters among the module params

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

Adding default variables to the speakup_keypc 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@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://lore.kernel.org/r/20221109215108.7933-11-osmtendev@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 23 insertions, 6 deletions

diff --git a/drivers/accessibility/speakup/speakup_keypc.c b/drivers/accessibility/speakup/speakup_keypc.c
index f61b62f1ea4d..9356f6379560 100644
--- a/drivers/accessibility/speakup/speakup_keypc.c
+++ b/drivers/accessibility/speakup/speakup_keypc.c
@@ -33,12 +33,21 @@ static int synth_port;
 static int port_forced;
 static unsigned int synth_portlist[] = { 0x2a8, 0 };
 
-static struct var_t vars[] = {
-	{ CAPS_START, .u.s = {"[f130]" } },
-	{ CAPS_STOP, .u.s = {"[f90]" } },
-	{ RATE, .u.n = {"\04%c ", 8, 0, 10, 81, -8, NULL } },
-	{ PITCH, .u.n = {"[f%d]", 5, 0, 9, 40, 10, 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,
+	DIRECT_ID, V_LAST_VAR_ID,
+	NB_ID
+};
+
+
+static struct var_t vars[NB_ID] = {
+	[CAPS_START_ID] = { CAPS_START, .u.s = {"[f130]" } },
+	[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"[f90]" } },
+	[RATE_ID] = { RATE, .u.n = {"\04%c ", 8, 0, 10, 81, -8, NULL } },
+	[PITCH_ID] = { PITCH, .u.n = {"[f%d]", 5, 0, 9, 40, 10, NULL } },
+	[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
 	V_LAST_VAR
 };
 
@@ -305,9 +314,17 @@ static void keynote_release(struct spk_synth *synth)
 
 module_param_hw_named(port, port_forced, int, ioport, 0444);
 module_param_named(start, synth_keypc.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(direct, vars[DIRECT_ID].u.n.default_val, int, 0444);
 
 MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
 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(direct, "Set the direct variable on load.");
+
+
 
 module_spk_synth(synth_keypc);