From 505280bd9af458c712ec6d19afacdc192c6e02ab Mon Sep 17 00:00:00 2001
From: Peter Wu <peter@lekensteyn.nl>
Date: Tue, 1 Apr 2014 21:55:02 +0200
Subject: unifying: handle K800-specific HID++ 1.0 regs

Add these regs to prevent reporting errors. Some of the regs are not
implemented fully.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
---
 hw/usb/hid-logitech-dj.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'hw')

diff --git a/hw/usb/hid-logitech-dj.c b/hw/usb/hid-logitech-dj.c
index 0ab09f332d..f5b736f6f3 100644
--- a/hw/usb/hid-logitech-dj.c
+++ b/hw/usb/hid-logitech-dj.c
@@ -344,6 +344,53 @@ static void hidpp_process_receiver_report(USBLtunifyState *s, HidppMsg *msg)
     }
 }
 
+static bool hidpp_process_k800_regs(unsigned req, LHidDevice *hd, uint8_t *parms)
+{
+    switch (req) {
+    /* K800-specific */
+    case GET_REG(0x01): /* hand detection */
+        memset(parms, 0, 3);
+        return true;
+    case SET_REG(0x01): /* hand detection */
+        /* not implemented */
+        memset(parms, 0, 3);
+        return true;
+    case GET_REG(0x07): /* battery */
+        parms[0] = hd->battery.level;
+        switch (hd->battery.status) {
+        case BAT_STS_RECHARGING:
+            parms[1] = 0x25;
+            break;
+        case BAT_STS_CHARGE_COMPLETE:
+            parms[1] = 0x22;
+            break;
+        default:
+            parms[1] = 0; /* discharging */
+        }
+        parms[2] = 0;
+        return true;
+    case GET_REG(0x09): /* Fn key swap */
+        memset(parms, 0, 3);
+        return true;
+    case SET_REG(0x09): /* Fn key swap */
+        /* not implemented */
+        memset(parms, 0, 3);
+        return true;
+    case GET_REG(0x17): /* Illumination info */
+        parms[0] = 0x3C;
+        parms[1] = 0x00;
+        parms[2] = 0x01;
+        return true;
+    case SET_REG(0x17): /* Illumination info */
+        /* not implemented */
+        memset(parms, 0, 3);
+        return true;
+    default:
+        /* unhandled */
+        return false;
+    }
+}
+
 /* called for HID++ reports targeted at devices */
 static void hidpp_process_device_hidpp10(USBLtunifyState *s, HidppMsg *msg)
 {
@@ -369,6 +416,12 @@ static void hidpp_process_device_hidpp10(USBLtunifyState *s, HidppMsg *msg)
         hidpp_process_version_request(s, &msg->hidpp_s, &hd->info.version);
         break;
     default:
+        if (hd->info.wireless_pid == WPID_K800) {
+            if (hidpp_process_k800_regs(req, hd, parms)) {
+                hidpp_queue_output_report(s, msg);
+                break;
+            }
+        }
         /* unknown request, return error */
         switch (req & ~0xFF) {
         case SET_REG(0):
@@ -601,6 +654,9 @@ static void hidpp_init_device(USBLtunifyState *s, int device_index, uint16_t pid
         memcpy(hd->info.name, "K800", 4);
         /* hd->info.device_name N/A for HID++ 1.0 */
         hd->report_interval = 20;
+        hd->battery.nlevels = 7; /* valid values: 1, 3, 5, 7 */
+        hd->battery.level = 7; /* Full - 90 % */
+        hd->battery.critical_perc = 5;
         break;
     case WPID_M525:
         hd->info.device_type = DEVTYPE_MOUSE;
-- 
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