Commit 99afb989 authored by Devin Heitmueller's avatar Devin Heitmueller Committed by Mauro Carvalho Chehab

V4L/DVB (9639): Make dib0700 remote control support work with firmware v1.20

The format for reading the IR controller changed in firmware 1.20.  It now
provides the events on bulk endpoint 1 instead of using a control request.

Support the new format, providing backward compatibility for users who might
be using older firmware.

Thanks to Patrick Boettcher <patrick.boettcher@desy.de> for providing the
required information on how the version 1.20 firmware works.
Signed-off-by: default avatarDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: default avatarPatrick Boettcher <pb@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent deaf53e3
......@@ -22,7 +22,7 @@ extern int dvb_usb_dib0700_debug;
#define REQUEST_I2C_READ 0x2
#define REQUEST_I2C_WRITE 0x3
#define REQUEST_POLL_RC 0x4
#define REQUEST_POLL_RC 0x4 /* deprecated in firmware v1.20 */
#define REQUEST_JUMPRAM 0x8
#define REQUEST_SET_CLOCK 0xB
#define REQUEST_SET_GPIO 0xC
......@@ -40,11 +40,14 @@ struct dib0700_state {
u16 mt2060_if1[2];
u8 rc_toggle;
u8 rc_counter;
u8 rc_func_version;
u8 is_dib7000pc;
u8 fw_use_new_i2c_api;
u8 disable_streaming_master_mode;
};
extern int dib0700_get_version(struct dvb_usb_device *d, u32 *hwversion,
u32 *romversion, u32 *ramversion, u32 *fwtype);
extern int dib0700_set_gpio(struct dvb_usb_device *, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val);
extern int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3);
extern int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen);
......
......@@ -19,6 +19,22 @@ MODULE_PARM_DESC(dvb_usb_dib0700_ir_proto, "set ir protocol (0=NEC, 1=RC5 (defau
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
int dib0700_get_version(struct dvb_usb_device *d, u32 *hwversion,
u32 *romversion, u32 *ramversion, u32 *fwtype)
{
u8 b[16];
int ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0),
REQUEST_GET_VERSION,
USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
b, sizeof(b), USB_CTRL_GET_TIMEOUT);
*hwversion = (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];
*romversion = (b[4] << 24) | (b[5] << 16) | (b[6] << 8) | b[7];
*ramversion = (b[8] << 24) | (b[9] << 16) | (b[10] << 8) | b[11];
*fwtype = (b[12] << 24) | (b[13] << 16) | (b[14] << 8) | b[15];
return ret;
}
/* expecting rx buffer: request data[0] data[1] ... data[2] */
static int dib0700_ctrl_wr(struct dvb_usb_device *d, u8 *tx, u8 txlen)
{
......
......@@ -38,6 +38,7 @@ static struct mt2060_config bristol_mt2060_config[2] = {
}
};
static struct dibx000_agc_config bristol_dib3000p_mt2060_agc_config = {
.band_caps = BAND_VHF | BAND_UHF,
.setup = (1 << 8) | (5 << 5) | (0 << 4) | (0 << 3) | (0 << 2) | (2 << 0),
......@@ -451,8 +452,13 @@ static u8 rc_request[] = { REQUEST_POLL_RC, 0 };
/* Number of keypresses to ignore before start repeating */
#define RC_REPEAT_DELAY 2
#define RC_REPEAT_DELAY_V1_20 5
static int dib0700_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
/* Used by firmware versions < 1.20 (deprecated) */
static int dib0700_rc_query_legacy(struct dvb_usb_device *d, u32 *event,
int *state)
{
u8 key[4];
int i;
......@@ -529,6 +535,137 @@ static int dib0700_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
return 0;
}
/* This is the structure of the RC response packet starting in firmware 1.20 */
struct dib0700_rc_response {
u8 report_id;
u8 data_state;
u8 system_msb;
u8 system_lsb;
u8 data;
u8 not_data;
};
/* This supports the new IR response format for firmware v1.20 */
static int dib0700_rc_query_v1_20(struct dvb_usb_device *d, u32 *event,
int *state)
{
struct dvb_usb_rc_key *keymap = d->props.rc_key_map;
struct dib0700_state *st = d->priv;
struct dib0700_rc_response poll_reply;
u8 buf[6];
int i;
int status;
int actlen;
int found = 0;
/* Set initial results in case we exit the function early */
*event = 0;
*state = REMOTE_NO_KEY_PRESSED;
/* Firmware v1.20 provides RC data via bulk endpoint 1 */
status = usb_bulk_msg(d->udev, usb_rcvbulkpipe(d->udev, 1), buf,
sizeof(buf), &actlen, 50);
if (status < 0) {
/* No data available (meaning no key press) */
return 0;
}
if (actlen != sizeof(buf)) {
/* We didn't get back the 6 byte message we expected */
err("Unexpected RC response size [%d]", actlen);
return -1;
}
poll_reply.report_id = buf[0];
poll_reply.data_state = buf[1];
poll_reply.system_msb = buf[2];
poll_reply.system_lsb = buf[3];
poll_reply.data = buf[4];
poll_reply.not_data = buf[5];
/*
info("rid=%02x ds=%02x sm=%02x sl=%02x d=%02x nd=%02x\n",
poll_reply.report_id, poll_reply.data_state,
poll_reply.system_msb, poll_reply.system_lsb,
poll_reply.data, poll_reply.not_data);
*/
if ((poll_reply.data + poll_reply.not_data) != 0xff) {
/* Key failed integrity check */
err("key failed integrity check: %02x %02x %02x %02x",
poll_reply.system_msb, poll_reply.system_lsb,
poll_reply.data, poll_reply.not_data);
return -1;
}
/* Find the key in the map */
for (i = 0; i < d->props.rc_key_map_size; i++) {
if (keymap[i].custom == poll_reply.system_lsb &&
keymap[i].data == poll_reply.data) {
*event = keymap[i].event;
found = 1;
break;
}
}
if (found == 0) {
err("Unknown remote controller key: %02x %02x %02x %02x",
poll_reply.system_msb, poll_reply.system_lsb,
poll_reply.data, poll_reply.not_data);
d->last_event = 0;
return 0;
}
if (poll_reply.data_state == 1) {
/* New key hit */
st->rc_counter = 0;
*event = keymap[i].event;
*state = REMOTE_KEY_PRESSED;
d->last_event = keymap[i].event;
} else if (poll_reply.data_state == 2) {
/* Key repeated */
st->rc_counter++;
/* prevents unwanted double hits */
if (st->rc_counter > RC_REPEAT_DELAY_V1_20) {
*event = d->last_event;
*state = REMOTE_KEY_PRESSED;
st->rc_counter = RC_REPEAT_DELAY_V1_20;
}
} else {
err("Unknown data state [%d]", poll_reply.data_state);
}
return 0;
}
static int dib0700_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
struct dib0700_state *st = d->priv;
/* Because some people may have improperly named firmware files,
let's figure out whether to use the new firmware call or the legacy
call based on the firmware version embedded in the file */
if (st->rc_func_version == 0) {
u32 hwver, romver, ramver, fwtype;
int ret = dib0700_get_version(d, &hwver, &romver, &ramver,
&fwtype);
if (ret < 0) {
err("Could not determine version info");
return -1;
}
if (ramver < 0x10200)
st->rc_func_version = 1;
else
st->rc_func_version = 2;
}
if (st->rc_func_version == 2)
return dib0700_rc_query_v1_20(d, event, state);
else
return dib0700_rc_query_legacy(d, event, state);
}
static struct dvb_usb_rc_key dib0700_rc_keys[] = {
/* Key codes for the tiny Pinnacle remote*/
{ 0x07, 0x00, KEY_MUTE },
......
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