From: Jarod Wilson Date: Thu, 20 Jan 2011 21:31:18 +0000 (-0300) Subject: [media] ir-kbd-i2c: improve remote behavior with z8 behind usb X-Git-Tag: firefly_0821_release~7613^2~2273^2~21 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8df59918b5bc2c3c80e5e0b9386228df7ad54e65;p=firefly-linux-kernel-4.4.55.git [media] ir-kbd-i2c: improve remote behavior with z8 behind usb Add the same "are you ready?" i2c_master_send() poll command to get_key_haup_xvr found in lirc_zilog, which is apparently seen in the Windows driver for the PVR-150 w/a z8. This stabilizes what is received from both the HD-PVR and HVR-1950, even with their polling intervals at the default of 100, thus the removal of the custom 260ms polling_interval in pvrusb2-i2c-core.c. Acked-by: Andy Walls Acked-by: Mike Isely Signed-off-by: Jarod Wilson Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c index d2b20ad383a3..a221ad68b330 100644 --- a/drivers/media/video/ir-kbd-i2c.c +++ b/drivers/media/video/ir-kbd-i2c.c @@ -128,6 +128,19 @@ static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) static int get_key_haup_xvr(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { + int ret; + unsigned char buf[1] = { 0 }; + + /* + * This is the same apparent "are you ready?" poll command observed + * watching Windows driver traffic and implemented in lirc_zilog. With + * this added, we get far saner remote behavior with z8 chips on usb + * connected devices, even with the default polling interval of 100ms. + */ + ret = i2c_master_send(ir->c, buf, 1); + if (ret != 1) + return (ret < 0) ? ret : -EINVAL; + return get_key_haup_common (ir, ir_key, ir_raw, 6, 3); } diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c index ccc884948f34..451ecd485f97 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c @@ -597,7 +597,6 @@ static void pvr2_i2c_register_ir(struct pvr2_hdw *hdw) init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR; init_data->type = RC_TYPE_RC5; init_data->name = hdw->hdw_desc->description; - init_data->polling_interval = 260; /* ms From lirc_zilog */ /* IR Receiver */ info.addr = 0x71; info.platform_data = init_data;