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Subject: [media] rc: Hauppauge z8f0811 can decode RC6
Author:  Sean Young <s...@mess.org>
Date:    Mon Sep 19 19:21:23 2016 -0300

The hardware does not decode the 16, 20 or 24 bit variety.

Signed-off-by: Sean Young <s...@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mche...@s-opensource.com>

 drivers/media/i2c/ir-kbd-i2c.c               | 90 ++++++++++++++++++----------
 drivers/media/pci/cx18/cx18-i2c.c            |  3 +-
 drivers/media/pci/cx88/cx88-input.c          |  3 +-
 drivers/media/pci/ivtv/ivtv-i2c.c            |  3 +-
 drivers/media/usb/hdpvr/hdpvr-i2c.c          |  2 +-
 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c |  3 +-
 6 files changed, 69 insertions(+), 35 deletions(-)

---

diff --git a/drivers/media/i2c/ir-kbd-i2c.c b/drivers/media/i2c/ir-kbd-i2c.c
index bf82726fd3f4..f95a6bc839d5 100644
--- a/drivers/media/i2c/ir-kbd-i2c.c
+++ b/drivers/media/i2c/ir-kbd-i2c.c
@@ -35,6 +35,7 @@
  *
  */
 
+#include <asm/unaligned.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -63,51 +64,80 @@ module_param(debug, int, 0644);    /* debug level (0,1,2) */
 /* ----------------------------------------------------------------------- */
 
 static int get_key_haup_common(struct IR_i2c *ir, enum rc_type *protocol,
-                              u32 *scancode, u8 *ptoggle, int size, int offset)
+                                       u32 *scancode, u8 *ptoggle, int size)
 {
        unsigned char buf[6];
-       int start, range, toggle, dev, code, ircode;
+       int start, range, toggle, dev, code, ircode, vendor;
 
        /* poll IR chip */
        if (size != i2c_master_recv(ir->c, buf, size))
                return -EIO;
 
-       /* split rc5 data block ... */
-       start  = (buf[offset] >> 7) &    1;
-       range  = (buf[offset] >> 6) &    1;
-       toggle = (buf[offset] >> 5) &    1;
-       dev    =  buf[offset]       & 0x1f;
-       code   = (buf[offset+1] >> 2) & 0x3f;
+       if (buf[0] & 0x80) {
+               int offset = (size == 6) ? 3 : 0;
 
-       /* rc5 has two start bits
-        * the first bit must be one
-        * the second bit defines the command range (1 = 0-63, 0 = 64 - 127)
-        */
-       if (!start)
-               /* no key pressed */
-               return 0;
+               /* split rc5 data block ... */
+               start  = (buf[offset] >> 7) &    1;
+               range  = (buf[offset] >> 6) &    1;
+               toggle = (buf[offset] >> 5) &    1;
+               dev    =  buf[offset]       & 0x1f;
+               code   = (buf[offset+1] >> 2) & 0x3f;
 
-       /* filter out invalid key presses */
-       ircode = (start << 12) | (toggle << 11) | (dev << 6) | code;
-       if ((ircode & 0x1fff) == 0x1fff)
-               return 0;
+               /* rc5 has two start bits
+                * the first bit must be one
+                * the second bit defines the command range:
+                * 1 = 0-63, 0 = 64 - 127
+                */
+               if (!start)
+                       /* no key pressed */
+                       return 0;
 
-       if (!range)
-               code += 64;
+               /* filter out invalid key presses */
+               ircode = (start << 12) | (toggle << 11) | (dev << 6) | code;
+               if ((ircode & 0x1fff) == 0x1fff)
+                       return 0;
 
-       dprintk(1,"ir hauppauge (rc5): s%d r%d t%d dev=%d code=%d\n",
-               start, range, toggle, dev, code);
+               if (!range)
+                       code += 64;
 
-       *protocol = RC_TYPE_RC5;
-       *scancode = RC_SCANCODE_RC5(dev, code);
-       *ptoggle = toggle;
-       return 1;
+               dprintk(1, "ir hauppauge (rc5): s%d r%d t%d dev=%d code=%d\n",
+                       start, range, toggle, dev, code);
+
+               *protocol = RC_TYPE_RC5;
+               *scancode = RC_SCANCODE_RC5(dev, code);
+               *ptoggle = toggle;
+
+               return 1;
+       } else if (size == 6 && (buf[0] & 0x40)) {
+               code = buf[4];
+               dev = buf[3];
+               vendor = get_unaligned_be16(buf + 1);
+
+               if (vendor == 0x800f) {
+                       *ptoggle = (dev & 0x80) != 0;
+                       *protocol = RC_TYPE_RC6_MCE;
+                       dev &= 0x7f;
+                       dprintk(1, "ir hauppauge (rc6-mce): t%d vendor=%d 
dev=%d code=%d\n",
+                                               toggle, vendor, dev, code);
+               } else {
+                       *ptoggle = 0;
+                       *protocol = RC_TYPE_RC6_6A_32;
+                       dprintk(1, "ir hauppauge (rc6-6a-32): vendor=%d dev=%d 
code=%d\n",
+                                                       vendor, dev, code);
+               }
+
+               *scancode = RC_SCANCODE_RC6_6A(vendor, dev, code);
+
+               return 1;
+       }
+
+       return 0;
 }
 
 static int get_key_haup(struct IR_i2c *ir, enum rc_type *protocol,
                        u32 *scancode, u8 *toggle)
 {
-       return get_key_haup_common (ir, protocol, scancode, toggle, 3, 0);
+       return get_key_haup_common(ir, protocol, scancode, toggle, 3);
 }
 
 static int get_key_haup_xvr(struct IR_i2c *ir, enum rc_type *protocol,
@@ -126,7 +156,7 @@ static int get_key_haup_xvr(struct IR_i2c *ir, enum rc_type 
*protocol,
        if (ret != 1)
                return (ret < 0) ? ret : -EINVAL;
 
-       return get_key_haup_common(ir, protocol, scancode, toggle, 6, 3);
+       return get_key_haup_common(ir, protocol, scancode, toggle, 6);
 }
 
 static int get_key_pixelview(struct IR_i2c *ir, enum rc_type *protocol,
@@ -347,7 +377,7 @@ static int ir_probe(struct i2c_client *client, const struct 
i2c_device_id *id)
        case 0x71:
                name        = "Hauppauge/Zilog Z8";
                ir->get_key = get_key_haup_xvr;
-               rc_type     = RC_BIT_RC5;
+               rc_type     = RC_BIT_RC5 | RC_BIT_RC6_MCE | RC_BIT_RC6_6A_32;
                ir_codes    = RC_MAP_HAUPPAUGE;
                break;
        }
diff --git a/drivers/media/pci/cx18/cx18-i2c.c 
b/drivers/media/pci/cx18/cx18-i2c.c
index 4af8cd6df95d..c9329371a3f8 100644
--- a/drivers/media/pci/cx18/cx18-i2c.c
+++ b/drivers/media/pci/cx18/cx18-i2c.c
@@ -98,7 +98,8 @@ static int cx18_i2c_new_ir(struct cx18 *cx, struct 
i2c_adapter *adap, u32 hw,
        case CX18_HW_Z8F0811_IR_RX_HAUP:
                init_data->ir_codes = RC_MAP_HAUPPAUGE;
                init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
-               init_data->type = RC_BIT_RC5;
+               init_data->type = RC_BIT_RC5 | RC_BIT_RC6_MCE |
+                                                       RC_BIT_RC6_6A_32;
                init_data->name = cx->card_name;
                info.platform_data = init_data;
                break;
diff --git a/drivers/media/pci/cx88/cx88-input.c 
b/drivers/media/pci/cx88/cx88-input.c
index 3f1342c98b46..21d029b2bbb3 100644
--- a/drivers/media/pci/cx88/cx88-input.c
+++ b/drivers/media/pci/cx88/cx88-input.c
@@ -631,7 +631,8 @@ void cx88_i2c_init_ir(struct cx88_core *core)
                        /* Hauppauge XVR */
                        core->init_data.name = "cx88 Hauppauge XVR remote";
                        core->init_data.ir_codes = RC_MAP_HAUPPAUGE;
-                       core->init_data.type = RC_BIT_RC5;
+                       core->init_data.type = RC_BIT_RC5 | RC_BIT_RC6_MCE |
+                                                       RC_BIT_RC6_6A_32;
                        core->init_data.internal_get_key_func = 
IR_KBD_GET_KEY_HAUP_XVR;
 
                        info.platform_data = &core->init_data;
diff --git a/drivers/media/pci/ivtv/ivtv-i2c.c 
b/drivers/media/pci/ivtv/ivtv-i2c.c
index dd57442cf086..dea80efd5836 100644
--- a/drivers/media/pci/ivtv/ivtv-i2c.c
+++ b/drivers/media/pci/ivtv/ivtv-i2c.c
@@ -215,7 +215,8 @@ static int ivtv_i2c_new_ir(struct ivtv *itv, u32 hw, const 
char *type, u8 addr)
                /* Default to grey remote */
                init_data->ir_codes = RC_MAP_HAUPPAUGE;
                init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
-               init_data->type = RC_BIT_RC5;
+               init_data->type = RC_BIT_RC5 | RC_BIT_RC6_MCE |
+                                                       RC_BIT_RC6_6A_32;
                init_data->name = itv->card_name;
                break;
        case IVTV_HW_I2C_IR_RX_ADAPTEC:
diff --git a/drivers/media/usb/hdpvr/hdpvr-i2c.c 
b/drivers/media/usb/hdpvr/hdpvr-i2c.c
index 608ae96dc0e5..9b641c4d4431 100644
--- a/drivers/media/usb/hdpvr/hdpvr-i2c.c
+++ b/drivers/media/usb/hdpvr/hdpvr-i2c.c
@@ -55,7 +55,7 @@ struct i2c_client *hdpvr_register_ir_rx_i2c(struct 
hdpvr_device *dev)
        /* Our default information for ir-kbd-i2c.c to use */
        init_data->ir_codes = RC_MAP_HAUPPAUGE;
        init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
-       init_data->type = RC_BIT_RC5;
+       init_data->type = RC_BIT_RC5 | RC_BIT_RC6_MCE | RC_BIT_RC6_6A_32;
        init_data->name = "HD-PVR";
        init_data->polling_interval = 405; /* ms, duplicated from Windows */
        hdpvr_ir_rx_i2c_board_info.platform_data = init_data;
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c 
b/drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c
index 14321d0a1833..6da5fb544817 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c
@@ -596,7 +596,8 @@ static void pvr2_i2c_register_ir(struct pvr2_hdw *hdw)
        case PVR2_IR_SCHEME_24XXX_MCE: /* 24xxx MCE device */
                init_data->ir_codes              = RC_MAP_HAUPPAUGE;
                init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
-               init_data->type                  = RC_BIT_RC5;
+               init_data->type                  = RC_BIT_RC5 | RC_BIT_RC6_MCE |
+                                                       RC_BIT_RC6_6A_32;
                init_data->name                  = hdw->hdw_desc->description;
                /* IR Receiver */
                info.addr          = 0x71;

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