[media] mceusb: report actual tx frequencies
[pandora-kernel.git] / drivers / media / rc / mceusb.c
index ec972dc..e51637f 100644 (file)
@@ -37,6 +37,7 @@
 #include <linux/slab.h>
 #include <linux/usb.h>
 #include <linux/usb/input.h>
+#include <linux/pm_wakeup.h>
 #include <media/rc-core.h>
 
 #define DRIVER_VERSION "1.91"
 #define MCE_PULSE_MASK         0x7f /* Pulse mask */
 #define MCE_MAX_PULSE_LENGTH   0x7f /* Longest transmittable pulse symbol */
 
-#define MCE_HW_CMD_HEADER      0xff    /* MCE hardware command header */
-#define MCE_COMMAND_HEADER     0x9f    /* MCE command header */
-#define MCE_COMMAND_MASK       0xe0    /* Mask out command bits */
-#define MCE_COMMAND_NULL       0x00    /* These show up various places... */
-/* if buf[i] & MCE_COMMAND_MASK == 0x80 and buf[i] != MCE_COMMAND_HEADER,
- * then we're looking at a raw IR data sample */
-#define MCE_COMMAND_IRDATA     0x80
-#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
-
-/* Sub-commands, which follow MCE_COMMAND_HEADER or MCE_HW_CMD_HEADER */
+/*
+ * The interface between the host and the IR hardware is command-response
+ * based. All commands and responses have a consistent format, where a lead
+ * byte always identifies the type of data following it. The lead byte has
+ * a port value in the 3 highest bits and a length value in the 5 lowest
+ * bits.
+ *
+ * The length field is overloaded, with a value of 11111 indicating that the
+ * following byte is a command or response code, and the length of the entire
+ * message is determined by the code. If the length field is not 11111, then
+ * it specifies the number of bytes of port data that follow.
+ */
+#define MCE_CMD                        0x1f
+#define MCE_PORT_IR            0x4     /* (0x4 << 5) | MCE_CMD = 0x9f */
+#define MCE_PORT_SYS           0x7     /* (0x7 << 5) | MCE_CMD = 0xff */
+#define MCE_PORT_SER           0x6     /* 0xc0 thru 0xdf flush & 0x1f bytes */
+#define MCE_PORT_MASK  0xe0    /* Mask out command bits */
+
+/* Command port headers */
+#define MCE_CMD_PORT_IR                0x9f    /* IR-related cmd/rsp */
+#define MCE_CMD_PORT_SYS       0xff    /* System (non-IR) device cmd/rsp */
+
+/* Commands that set device state  (2-4 bytes in length) */
+#define MCE_CMD_RESET          0xfe    /* Reset device, 2 bytes */
+#define MCE_CMD_RESUME         0xaa    /* Resume device after error, 2 bytes */
+#define MCE_CMD_SETIRCFS       0x06    /* Set tx carrier, 4 bytes */
+#define MCE_CMD_SETIRTIMEOUT   0x0c    /* Set timeout, 4 bytes */
+#define MCE_CMD_SETIRTXPORTS   0x08    /* Set tx ports, 3 bytes */
+#define MCE_CMD_SETIRRXPORTEN  0x14    /* Set rx ports, 3 bytes */
+#define MCE_CMD_FLASHLED       0x23    /* Flash receiver LED, 2 bytes */
+
+/* Commands that query device state (all 2 bytes, unless noted) */
+#define MCE_CMD_GETIRCFS       0x07    /* Get carrier */
+#define MCE_CMD_GETIRTIMEOUT   0x0d    /* Get timeout */
+#define MCE_CMD_GETIRTXPORTS   0x13    /* Get tx ports */
+#define MCE_CMD_GETIRRXPORTEN  0x15    /* Get rx ports */
+#define MCE_CMD_GETPORTSTATUS  0x11    /* Get tx port status, 3 bytes */
+#define MCE_CMD_GETIRNUMPORTS  0x16    /* Get number of ports */
+#define MCE_CMD_GETWAKESOURCE  0x17    /* Get wake source */
+#define MCE_CMD_GETEMVER       0x22    /* Get emulator interface version */
+#define MCE_CMD_GETDEVDETAILS  0x21    /* Get device details (em ver2 only) */
+#define MCE_CMD_GETWAKESUPPORT 0x20    /* Get wake details (em ver2 only) */
+#define MCE_CMD_GETWAKEVERSION 0x18    /* Get wake pattern (em ver2 only) */
+
+/* Misc commands */
+#define MCE_CMD_NOP            0xff    /* No operation */
+
+/* Responses to commands (non-error cases) */
+#define MCE_RSP_EQIRCFS                0x06    /* tx carrier, 4 bytes */
+#define MCE_RSP_EQIRTIMEOUT    0x0c    /* rx timeout, 4 bytes */
+#define MCE_RSP_GETWAKESOURCE  0x17    /* wake source, 3 bytes */
+#define MCE_RSP_EQIRTXPORTS    0x08    /* tx port mask, 3 bytes */
+#define MCE_RSP_EQIRRXPORTEN   0x14    /* rx port mask, 3 bytes */
+#define MCE_RSP_GETPORTSTATUS  0x11    /* tx port status, 7 bytes */
+#define MCE_RSP_EQIRRXCFCNT    0x15    /* rx carrier count, 4 bytes */
+#define MCE_RSP_EQIRNUMPORTS   0x16    /* number of ports, 4 bytes */
+#define MCE_RSP_EQWAKESUPPORT  0x20    /* wake capabilities, 3 bytes */
+#define MCE_RSP_EQWAKEVERSION  0x18    /* wake pattern details, 6 bytes */
+#define MCE_RSP_EQDEVDETAILS   0x21    /* device capabilities, 3 bytes */
+#define MCE_RSP_EQEMVER                0x22    /* emulator interface ver, 3 bytes */
+#define MCE_RSP_FLASHLED       0x23    /* success flashing LED, 2 bytes */
+
+/* Responses to error cases, must send MCE_CMD_RESUME to clear them */
+#define MCE_RSP_CMD_ILLEGAL    0xfe    /* illegal command for port, 2 bytes */
+#define MCE_RSP_TX_TIMEOUT     0x81    /* tx timed out, 2 bytes */
+
+/* Misc commands/responses not defined in the MCE remote/transceiver spec */
 #define MCE_CMD_SIG_END                0x01    /* End of signal */
 #define MCE_CMD_PING           0x03    /* Ping device */
 #define MCE_CMD_UNKNOWN                0x04    /* Unknown */
 #define MCE_CMD_UNKNOWN2       0x05    /* Unknown */
-#define MCE_CMD_S_CARRIER      0x06    /* Set TX carrier frequency */
-#define MCE_CMD_G_CARRIER      0x07    /* Get TX carrier frequency */
-#define MCE_CMD_S_TXMASK       0x08    /* Set TX port bitmask */
 #define MCE_CMD_UNKNOWN3       0x09    /* Unknown */
 #define MCE_CMD_UNKNOWN4       0x0a    /* Unknown */
 #define MCE_CMD_G_REVISION     0x0b    /* Get hw/sw revision */
-#define MCE_CMD_S_TIMEOUT      0x0c    /* Set RX timeout value */
-#define MCE_CMD_G_TIMEOUT      0x0d    /* Get RX timeout value */
 #define MCE_CMD_UNKNOWN5       0x0e    /* Unknown */
 #define MCE_CMD_UNKNOWN6       0x0f    /* Unknown */
-#define MCE_CMD_G_RXPORTSTS    0x11    /* Get RX port status */
-#define MCE_CMD_G_TXMASK       0x13    /* Set TX port bitmask */
-#define MCE_CMD_S_RXSENSOR     0x14    /* Set RX sensor (std/learning) */
-#define MCE_CMD_G_RXSENSOR     0x15    /* Get RX sensor (std/learning) */
-#define MCE_RSP_PULSE_COUNT    0x15    /* RX pulse count (only if learning) */
-#define MCE_CMD_TX_PORTS       0x16    /* Get number of TX ports */
-#define MCE_CMD_G_WAKESRC      0x17    /* Get wake source */
-#define MCE_CMD_UNKNOWN7       0x18    /* Unknown */
 #define MCE_CMD_UNKNOWN8       0x19    /* Unknown */
 #define MCE_CMD_UNKNOWN9       0x1b    /* Unknown */
-#define MCE_CMD_DEVICE_RESET   0xaa    /* Reset the hardware */
-#define MCE_RSP_CMD_INVALID    0xfe    /* Invalid command issued */
+#define MCE_CMD_NULL           0x00    /* These show up various places... */
 
+/* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR,
+ * then we're looking at a raw IR data sample */
+#define MCE_COMMAND_IRDATA     0x80
+#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
 
 /* module parameters */
 #ifdef CONFIG_USB_DEBUG
@@ -388,48 +436,37 @@ struct mceusb_dev {
        char name[128];
        char phys[64];
        enum mceusb_model_type model;
+
+       bool need_reset;        /* flag to issue a device resume cmd */
+       u8 emver;               /* emulator interface version */
+       u8 num_txports;         /* number of transmit ports */
+       u8 num_rxports;         /* number of receive sensors */
+       u8 txports_cabled;      /* bitmask of transmitters with cable */
+       u8 rxports_active;      /* bitmask of active receive sensors */
 };
 
-/*
- * MCE Device Command Strings
- * Device command responses vary from device to device...
- * - DEVICE_RESET resets the hardware to its default state
- * - GET_REVISION fetches the hardware/software revision, common
- *   replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
- * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
- *   device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
- *   meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
- *   ((clk / frequency) - 1)
- * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
- *   response in the form of 9f 0c msb lsb
- * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
- *   the form of 9f 08 bm, where bm is the bitmask
- * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
- *   general use one or short-range learning one, in the form of
- *   9f 14 ss, where ss is either 01 for long-range or 02 for short
- * - SET_CARRIER_FREQ sets a new carrier mode and frequency
- * - SET_TX_BITMASK sets the transmitter bitmask
- * - SET_RX_TIMEOUT sets the receiver timeout
- * - SET_RX_SENSOR sets which receiver sensor to use
- */
-static char DEVICE_RESET[]     = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER,
-                                  MCE_CMD_DEVICE_RESET};
-static char GET_REVISION[]     = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION};
-static char GET_UNKNOWN[]      = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7};
-static char GET_UNKNOWN2[]     = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2};
-static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER};
-static char GET_RX_TIMEOUT[]   = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT};
-static char GET_TX_BITMASK[]   = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK};
-static char GET_RX_SENSOR[]    = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR};
+/* MCE Device Command Strings, generally a port and command pair */
+static char DEVICE_RESUME[]    = {MCE_CMD_NULL, MCE_CMD_PORT_SYS,
+                                  MCE_CMD_RESUME};
+static char GET_REVISION[]     = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION};
+static char GET_EMVER[]                = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER};
+static char GET_WAKEVERSION[]  = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION};
+static char FLASH_LED[]                = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED};
+static char GET_UNKNOWN2[]     = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2};
+static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS};
+static char GET_RX_TIMEOUT[]   = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT};
+static char GET_NUM_PORTS[]    = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS};
+static char GET_TX_BITMASK[]   = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS};
+static char GET_RX_SENSOR[]    = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN};
 /* sub in desired values in lower byte or bytes for full command */
 /* FIXME: make use of these for transmit.
-static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER,
-                                  MCE_CMD_S_CARRIER, 0x00, 0x00};
-static char SET_TX_BITMASK[]   = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00};
-static char SET_RX_TIMEOUT[]   = {MCE_COMMAND_HEADER,
-                                  MCE_CMD_S_TIMEOUT, 0x00, 0x00};
-static char SET_RX_SENSOR[]    = {MCE_COMMAND_HEADER,
-                                  MCE_CMD_S_RXSENSOR, 0x00};
+static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR,
+                                  MCE_CMD_SETIRCFS, 0x00, 0x00};
+static char SET_TX_BITMASK[]   = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00};
+static char SET_RX_TIMEOUT[]   = {MCE_CMD_PORT_IR,
+                                  MCE_CMD_SETIRTIMEOUT, 0x00, 0x00};
+static char SET_RX_SENSOR[]    = {MCE_CMD_PORT_IR,
+                                  MCE_RSP_EQIRRXPORTEN, 0x00};
 */
 
 static int mceusb_cmdsize(u8 cmd, u8 subcmd)
@@ -437,27 +474,33 @@ static int mceusb_cmdsize(u8 cmd, u8 subcmd)
        int datasize = 0;
 
        switch (cmd) {
-       case MCE_COMMAND_NULL:
-               if (subcmd == MCE_HW_CMD_HEADER)
+       case MCE_CMD_NULL:
+               if (subcmd == MCE_CMD_PORT_SYS)
                        datasize = 1;
                break;
-       case MCE_HW_CMD_HEADER:
+       case MCE_CMD_PORT_SYS:
                switch (subcmd) {
+               case MCE_RSP_EQWAKEVERSION:
+                       datasize = 4;
+                       break;
                case MCE_CMD_G_REVISION:
                        datasize = 2;
                        break;
+               case MCE_RSP_EQWAKESUPPORT:
+                       datasize = 1;
+                       break;
                }
-       case MCE_COMMAND_HEADER:
+       case MCE_CMD_PORT_IR:
                switch (subcmd) {
                case MCE_CMD_UNKNOWN:
-               case MCE_CMD_S_CARRIER:
-               case MCE_CMD_S_TIMEOUT:
-               case MCE_RSP_PULSE_COUNT:
+               case MCE_RSP_EQIRCFS:
+               case MCE_RSP_EQIRTIMEOUT:
+               case MCE_RSP_EQIRRXCFCNT:
                        datasize = 2;
                        break;
                case MCE_CMD_SIG_END:
-               case MCE_CMD_S_TXMASK:
-               case MCE_CMD_S_RXSENSOR:
+               case MCE_RSP_EQIRTXPORTS:
+               case MCE_RSP_EQIRRXPORTEN:
                        datasize = 1;
                        break;
                }
@@ -470,9 +513,10 @@ static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
 {
        char codes[USB_BUFLEN * 3 + 1];
        char inout[9];
-       u8 cmd, subcmd, data1, data2;
+       u8 cmd, subcmd, data1, data2, data3, data4, data5;
        struct device *dev = ir->dev;
        int i, start, skip = 0;
+       u32 carrier, period;
 
        if (!debug)
                return;
@@ -500,18 +544,28 @@ static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
        subcmd = buf[start + 1] & 0xff;
        data1  = buf[start + 2] & 0xff;
        data2  = buf[start + 3] & 0xff;
+       data3  = buf[start + 4] & 0xff;
+       data4  = buf[start + 5] & 0xff;
+       data5  = buf[start + 6] & 0xff;
 
        switch (cmd) {
-       case MCE_COMMAND_NULL:
-               if ((subcmd == MCE_HW_CMD_HEADER) &&
-                   (data1 == MCE_CMD_DEVICE_RESET))
-                       dev_info(dev, "Device reset requested\n");
+       case MCE_CMD_NULL:
+               if (subcmd == MCE_CMD_NULL)
+                       break;
+               if ((subcmd == MCE_CMD_PORT_SYS) &&
+                   (data1 == MCE_CMD_RESUME))
+                       dev_info(dev, "Device resume requested\n");
                else
                        dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
                                 cmd, subcmd);
                break;
-       case MCE_HW_CMD_HEADER:
+       case MCE_CMD_PORT_SYS:
                switch (subcmd) {
+               case MCE_RSP_EQEMVER:
+                       if (!out)
+                               dev_info(dev, "Emulator interface version %x\n",
+                                        data1);
+                       break;
                case MCE_CMD_G_REVISION:
                        if (len == 2)
                                dev_info(dev, "Get hw/sw rev?\n");
@@ -520,21 +574,35 @@ static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
                                         "0x%02x 0x%02x\n", data1, data2,
                                         buf[start + 4], buf[start + 5]);
                        break;
-               case MCE_CMD_DEVICE_RESET:
-                       dev_info(dev, "Device reset requested\n");
+               case MCE_CMD_RESUME:
+                       dev_info(dev, "Device resume requested\n");
+                       break;
+               case MCE_RSP_CMD_ILLEGAL:
+                       dev_info(dev, "Illegal PORT_SYS command\n");
+                       break;
+               case MCE_RSP_EQWAKEVERSION:
+                       if (!out)
+                               dev_info(dev, "Wake version, proto: 0x%02x, "
+                                        "payload: 0x%02x, address: 0x%02x, "
+                                        "version: 0x%02x\n",
+                                        data1, data2, data3, data4);
                        break;
-               case MCE_RSP_CMD_INVALID:
-                       dev_info(dev, "Previous command not supported\n");
+               case MCE_RSP_GETPORTSTATUS:
+                       if (!out)
+                               /* We use data1 + 1 here, to match hw labels */
+                               dev_info(dev, "TX port %d: blaster is%s connected\n",
+                                        data1 + 1, data4 ? " not" : "");
+                       break;
+               case MCE_CMD_FLASHLED:
+                       dev_info(dev, "Attempting to flash LED\n");
                        break;
-               case MCE_CMD_UNKNOWN7:
-               case MCE_CMD_UNKNOWN9:
                default:
                        dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
                                 cmd, subcmd);
                        break;
                }
                break;
-       case MCE_COMMAND_HEADER:
+       case MCE_CMD_PORT_IR:
                switch (subcmd) {
                case MCE_CMD_SIG_END:
                        dev_info(dev, "End of signal\n");
@@ -546,47 +614,55 @@ static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
                        dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
                                 data1, data2);
                        break;
-               case MCE_CMD_S_CARRIER:
-                       dev_info(dev, "%s carrier mode and freq of "
-                                "0x%02x 0x%02x\n", inout, data1, data2);
+               case MCE_RSP_EQIRCFS:
+                       period = DIV_ROUND_CLOSEST(
+                                       (1 << data1 * 2) * (data2 + 1), 10);
+                       if (!period)
+                               break;
+                       carrier = (1000 * 1000) / period;
+                       dev_info(dev, "%s carrier of %u Hz (period %uus)\n",
+                                inout, carrier, period);
                        break;
-               case MCE_CMD_G_CARRIER:
+               case MCE_CMD_GETIRCFS:
                        dev_info(dev, "Get carrier mode and freq\n");
                        break;
-               case MCE_CMD_S_TXMASK:
+               case MCE_RSP_EQIRTXPORTS:
                        dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
                                 inout, data1);
                        break;
-               case MCE_CMD_S_TIMEOUT:
+               case MCE_RSP_EQIRTIMEOUT:
                        /* value is in units of 50us, so x*50/1000 ms */
+                       period = ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000;
                        dev_info(dev, "%s receive timeout of %d ms\n",
-                                inout,
-                                ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000);
+                                inout, period);
                        break;
-               case MCE_CMD_G_TIMEOUT:
+               case MCE_CMD_GETIRTIMEOUT:
                        dev_info(dev, "Get receive timeout\n");
                        break;
-               case MCE_CMD_G_TXMASK:
+               case MCE_CMD_GETIRTXPORTS:
                        dev_info(dev, "Get transmit blaster mask\n");
                        break;
-               case MCE_CMD_S_RXSENSOR:
+               case MCE_RSP_EQIRRXPORTEN:
                        dev_info(dev, "%s %s-range receive sensor in use\n",
                                 inout, data1 == 0x02 ? "short" : "long");
                        break;
-               case MCE_CMD_G_RXSENSOR:
-               /* aka MCE_RSP_PULSE_COUNT */
+               case MCE_CMD_GETIRRXPORTEN:
+               /* aka MCE_RSP_EQIRRXCFCNT */
                        if (out)
                                dev_info(dev, "Get receive sensor\n");
                        else if (ir->learning_enabled)
                                dev_info(dev, "RX pulse count: %d\n",
                                         ((data1 << 8) | data2));
                        break;
-               case MCE_RSP_CMD_INVALID:
-                       dev_info(dev, "Error! Hardware is likely wedged...\n");
+               case MCE_RSP_EQIRNUMPORTS:
+                       if (out)
+                               break;
+                       dev_info(dev, "Num TX ports: %x, num RX ports: %x\n",
+                                data1, data2);
+                       break;
+               case MCE_RSP_CMD_ILLEGAL:
+                       dev_info(dev, "Illegal PORT_IR command\n");
                        break;
-               case MCE_CMD_UNKNOWN2:
-               case MCE_CMD_UNKNOWN3:
-               case MCE_CMD_UNKNOWN5:
                default:
                        dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
                                 cmd, subcmd);
@@ -599,8 +675,8 @@ static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
 
        if (cmd == MCE_IRDATA_TRAILER)
                dev_info(dev, "End of raw IR data\n");
-       else if ((cmd != MCE_COMMAND_HEADER) &&
-                ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA))
+       else if ((cmd != MCE_CMD_PORT_IR) &&
+                ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA))
                dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
 }
 
@@ -616,9 +692,6 @@ static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
        if (ir) {
                len = urb->actual_length;
 
-               mce_dbg(ir->dev, "callback called (status=%d len=%d)\n",
-                       urb->status, len);
-
                mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
        }
 
@@ -683,7 +756,16 @@ static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,
 
 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
 {
+       int rsize = sizeof(DEVICE_RESUME);
+
+       if (ir->need_reset) {
+               ir->need_reset = false;
+               mce_request_packet(ir, DEVICE_RESUME, rsize, MCEUSB_TX);
+               msleep(10);
+       }
+
        mce_request_packet(ir, data, size, MCEUSB_TX);
+       msleep(10);
 }
 
 static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size)
@@ -692,26 +774,24 @@ static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size)
 }
 
 /* Send data out the IR blaster port(s) */
-static int mceusb_tx_ir(struct rc_dev *dev, int *txbuf, u32 n)
+static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
 {
        struct mceusb_dev *ir = dev->priv;
        int i, ret = 0;
-       int count, cmdcount = 0;
+       int cmdcount = 0;
        unsigned char *cmdbuf; /* MCE command buffer */
        long signal_duration = 0; /* Singnal length in us */
        struct timeval start_time, end_time;
 
        do_gettimeofday(&start_time);
 
-       count = n / sizeof(int);
-
-       cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
+       cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL);
        if (!cmdbuf)
                return -ENOMEM;
 
        /* MCE tx init header */
-       cmdbuf[cmdcount++] = MCE_COMMAND_HEADER;
-       cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK;
+       cmdbuf[cmdcount++] = MCE_CMD_PORT_IR;
+       cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS;
        cmdbuf[cmdcount++] = ir->tx_mask;
 
        /* Generate mce packet data */
@@ -774,7 +854,7 @@ static int mceusb_tx_ir(struct rc_dev *dev, int *txbuf, u32 n)
 
 out:
        kfree(cmdbuf);
-       return ret ? ret : n;
+       return ret ? ret : count;
 }
 
 /* Sets active IR outputs -- mce devices typically have two */
@@ -797,8 +877,8 @@ static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
        struct mceusb_dev *ir = dev->priv;
        int clk = 10000000;
        int prescaler = 0, divisor = 0;
-       unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER,
-                                   MCE_CMD_S_CARRIER, 0x00, 0x00 };
+       unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR,
+                                   MCE_CMD_SETIRCFS, 0x00, 0x00 };
 
        /* Carrier has changed */
        if (ir->carrier != carrier) {
@@ -846,17 +926,34 @@ static void mceusb_handle_command(struct mceusb_dev *ir, int index)
        u8 lo = ir->buf_in[index + 2] & 0xff;
 
        switch (ir->buf_in[index]) {
+       /* the one and only 5-byte return value command */
+       case MCE_RSP_GETPORTSTATUS:
+               if ((ir->buf_in[index + 4] & 0xff) == 0x00)
+                       ir->txports_cabled |= 1 << hi;
+               break;
+
        /* 2-byte return value commands */
-       case MCE_CMD_S_TIMEOUT:
+       case MCE_RSP_EQIRTIMEOUT:
                ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);
                break;
+       case MCE_RSP_EQIRNUMPORTS:
+               ir->num_txports = hi;
+               ir->num_rxports = lo;
+               break;
 
        /* 1-byte return value commands */
-       case MCE_CMD_S_TXMASK:
+       case MCE_RSP_EQEMVER:
+               ir->emver = hi;
+               break;
+       case MCE_RSP_EQIRTXPORTS:
                ir->tx_mask = hi;
                break;
-       case MCE_CMD_S_RXSENSOR:
-               ir->learning_enabled = (hi == 0x02);
+       case MCE_RSP_EQIRRXPORTEN:
+               ir->learning_enabled = ((hi & 0x02) == 0x02);
+               ir->rxports_active = hi;
+               break;
+       case MCE_RSP_CMD_ILLEGAL:
+               ir->need_reset = true;
                break;
        default:
                break;
@@ -905,8 +1002,8 @@ static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
                        /* decode mce packets of the form (84),AA,BB,CC,DD */
                        /* IR data packets can span USB messages - rem */
                        ir->cmd = ir->buf_in[i];
-                       if ((ir->cmd == MCE_COMMAND_HEADER) ||
-                           ((ir->cmd & MCE_COMMAND_MASK) !=
+                       if ((ir->cmd == MCE_CMD_PORT_IR) ||
+                           ((ir->cmd & MCE_PORT_MASK) !=
                             MCE_COMMAND_IRDATA)) {
                                ir->parser_state = SUBCMD;
                                continue;
@@ -971,6 +1068,13 @@ static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
        usb_submit_urb(urb, GFP_ATOMIC);
 }
 
+static void mceusb_get_emulator_version(struct mceusb_dev *ir)
+{
+       /* If we get no reply or an illegal command reply, its ver 1, says MS */
+       ir->emver = 1;
+       mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER));
+}
+
 static void mceusb_gen1_init(struct mceusb_dev *ir)
 {
        int ret;
@@ -1013,8 +1117,8 @@ static void mceusb_gen1_init(struct mceusb_dev *ir)
                              0x0000, 0x0100, NULL, 0, HZ * 3);
        mce_dbg(dev, "%s - retC = %d\n", __func__, ret);
 
-       /* device reset */
-       mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
+       /* device resume */
+       mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
 
        /* get hw/sw revision? */
        mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
@@ -1024,23 +1128,36 @@ static void mceusb_gen1_init(struct mceusb_dev *ir)
 
 static void mceusb_gen2_init(struct mceusb_dev *ir)
 {
-       /* device reset */
-       mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
+       /* device resume */
+       mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
 
        /* get hw/sw revision? */
        mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
 
-       /* unknown what the next two actually return... */
-       mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
+       /* get wake version (protocol, key, address) */
+       mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION));
+
+       /* unknown what this one actually returns... */
        mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
 }
 
 static void mceusb_get_parameters(struct mceusb_dev *ir)
 {
+       int i;
+       unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS,
+                                   MCE_CMD_GETPORTSTATUS, 0x00 };
+
+       /* defaults, if the hardware doesn't support querying */
+       ir->num_txports = 2;
+       ir->num_rxports = 2;
+
+       /* get number of tx and rx ports */
+       mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS));
+
        /* get the carrier and frequency */
        mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
 
-       if (!ir->flags.no_tx)
+       if (ir->num_txports && !ir->flags.no_tx)
                /* get the transmitter bitmask */
                mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
 
@@ -1049,6 +1166,19 @@ static void mceusb_get_parameters(struct mceusb_dev *ir)
 
        /* get receiver sensor setting */
        mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
+
+       for (i = 0; i < ir->num_txports; i++) {
+               cmdbuf[2] = i;
+               mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
+       }
+}
+
+static void mceusb_flash_led(struct mceusb_dev *ir)
+{
+       if (ir->emver < 2)
+               return;
+
+       mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED));
 }
 
 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
@@ -1222,6 +1352,9 @@ static int __devinit mceusb_dev_probe(struct usb_interface *intf,
        mce_dbg(&intf->dev, "Flushing receive buffers\n");
        mce_flush_rx_buffer(ir, maxp);
 
+       /* figure out which firmware/emulator version this hardware has */
+       mceusb_get_emulator_version(ir);
+
        /* initialize device */
        if (ir->flags.microsoft_gen1)
                mceusb_gen1_init(ir);
@@ -1230,13 +1363,23 @@ static int __devinit mceusb_dev_probe(struct usb_interface *intf,
 
        mceusb_get_parameters(ir);
 
+       mceusb_flash_led(ir);
+
        if (!ir->flags.no_tx)
                mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
 
        usb_set_intfdata(intf, ir);
 
-       dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
-                dev->bus->busnum, dev->devnum);
+       /* enable wake via this device */
+       device_set_wakeup_capable(ir->dev, true);
+       device_set_wakeup_enable(ir->dev, true);
+
+       dev_info(&intf->dev, "Registered %s with mce emulator interface "
+                "version %x\n", name, ir->emver);
+       dev_info(&intf->dev, "%x tx ports (0x%x cabled) and "
+                "%x rx sensors (0x%x active)\n",
+                ir->num_txports, ir->txports_cabled,
+                ir->num_rxports, ir->rxports_active);
 
        return 0;