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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 14:49:09 (GMT)
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 19:35:54 (GMT)
commit68de959f773a1d49096835c411390bceff5d1549 (patch)
tree99f48fd448c97981b1793f426e28df0d54d880bf /drivers/media/video/bt8xx/bttv-input.c
parent0aa77f6c2954896b132f8b6f2e9f063c52800913 (diff)
downloadlinux-fsl-qoriq-68de959f773a1d49096835c411390bceff5d1549.tar.xz
[media] bt8xx: move analog TV part to be together with DTV one
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/bt8xx/bttv-input.c')
-rw-r--r--drivers/media/video/bt8xx/bttv-input.c589
1 files changed, 0 insertions, 589 deletions
diff --git a/drivers/media/video/bt8xx/bttv-input.c b/drivers/media/video/bt8xx/bttv-input.c
deleted file mode 100644
index ef4c7cd..0000000
--- a/drivers/media/video/bt8xx/bttv-input.c
+++ /dev/null
@@ -1,589 +0,0 @@
-/*
- *
- * Copyright (c) 2003 Gerd Knorr
- * Copyright (c) 2003 Pavel Machek
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/input.h>
-#include <linux/slab.h>
-
-#include "bttv.h"
-#include "bttvp.h"
-
-
-static int ir_debug;
-module_param(ir_debug, int, 0644);
-
-static int ir_rc5_remote_gap = 885;
-module_param(ir_rc5_remote_gap, int, 0644);
-
-#undef dprintk
-#define dprintk(fmt, ...) \
-do { \
- if (ir_debug >= 1) \
- pr_info(fmt, ##__VA_ARGS__); \
-} while (0)
-
-#define DEVNAME "bttv-input"
-
-#define MODULE_NAME "bttv"
-
-/* ---------------------------------------------------------------------- */
-
-static void ir_handle_key(struct bttv *btv)
-{
- struct bttv_ir *ir = btv->remote;
- u32 gpio,data;
-
- /* read gpio value */
- gpio = bttv_gpio_read(&btv->c);
- if (ir->polling) {
- if (ir->last_gpio == gpio)
- return;
- ir->last_gpio = gpio;
- }
-
- /* extract data */
- data = ir_extract_bits(gpio, ir->mask_keycode);
- dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
- gpio, data,
- ir->polling ? "poll" : "irq",
- (gpio & ir->mask_keydown) ? " down" : "",
- (gpio & ir->mask_keyup) ? " up" : "");
-
- if ((ir->mask_keydown && (gpio & ir->mask_keydown)) ||
- (ir->mask_keyup && !(gpio & ir->mask_keyup))) {
- rc_keydown_notimeout(ir->dev, data, 0);
- } else {
- /* HACK: Probably, ir->mask_keydown is missing
- for this board */
- if (btv->c.type == BTTV_BOARD_WINFAST2000)
- rc_keydown_notimeout(ir->dev, data, 0);
-
- rc_keyup(ir->dev);
- }
-}
-
-static void ir_enltv_handle_key(struct bttv *btv)
-{
- struct bttv_ir *ir = btv->remote;
- u32 gpio, data, keyup;
-
- /* read gpio value */
- gpio = bttv_gpio_read(&btv->c);
-
- /* extract data */
- data = ir_extract_bits(gpio, ir->mask_keycode);
-
- /* Check if it is keyup */
- keyup = (gpio & ir->mask_keyup) ? 1 << 31 : 0;
-
- if ((ir->last_gpio & 0x7f) != data) {
- dprintk("gpio=0x%x code=%d | %s\n",
- gpio, data,
- (gpio & ir->mask_keyup) ? " up" : "up/down");
-
- rc_keydown_notimeout(ir->dev, data, 0);
- if (keyup)
- rc_keyup(ir->dev);
- } else {
- if ((ir->last_gpio & 1 << 31) == keyup)
- return;
-
- dprintk("(cnt) gpio=0x%x code=%d | %s\n",
- gpio, data,
- (gpio & ir->mask_keyup) ? " up" : "down");
-
- if (keyup)
- rc_keyup(ir->dev);
- else
- rc_keydown_notimeout(ir->dev, data, 0);
- }
-
- ir->last_gpio = data | keyup;
-}
-
-static int bttv_rc5_irq(struct bttv *btv);
-
-void bttv_input_irq(struct bttv *btv)
-{
- struct bttv_ir *ir = btv->remote;
-
- if (ir->rc5_gpio)
- bttv_rc5_irq(btv);
- else if (!ir->polling)
- ir_handle_key(btv);
-}
-
-static void bttv_input_timer(unsigned long data)
-{
- struct bttv *btv = (struct bttv*)data;
- struct bttv_ir *ir = btv->remote;
-
- if (btv->c.type == BTTV_BOARD_ENLTV_FM_2)
- ir_enltv_handle_key(btv);
- else
- ir_handle_key(btv);
- mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
-}
-
-/*
- * FIXME: Nebula digi uses the legacy way to decode RC5, instead of relying
- * on the rc-core way. As we need to be sure that both IRQ transitions are
- * properly triggered, Better to touch it only with this hardware for
- * testing.
- */
-
-#define RC5_START(x) (((x) >> 12) & 3)
-#define RC5_TOGGLE(x) (((x) >> 11) & 1)
-#define RC5_ADDR(x) (((x) >> 6) & 31)
-#define RC5_INSTR(x) ((x) & 63)
-
-/* decode raw bit pattern to RC5 code */
-static u32 bttv_rc5_decode(unsigned int code)
-{
- unsigned int org_code = code;
- unsigned int pair;
- unsigned int rc5 = 0;
- int i;
-
- for (i = 0; i < 14; ++i) {
- pair = code & 0x3;
- code >>= 2;
-
- rc5 <<= 1;
- switch (pair) {
- case 0:
- case 2:
- break;
- case 1:
- rc5 |= 1;
- break;
- case 3:
- dprintk("rc5_decode(%x) bad code\n",
- org_code);
- return 0;
- }
- }
- dprintk("code=%x, rc5=%x, start=%x, toggle=%x, address=%x, "
- "instr=%x\n", rc5, org_code, RC5_START(rc5),
- RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5));
- return rc5;
-}
-
-static void bttv_rc5_timer_end(unsigned long data)
-{
- struct bttv_ir *ir = (struct bttv_ir *)data;
- struct timeval tv;
- u32 gap;
- u32 rc5 = 0;
-
- /* get time */
- do_gettimeofday(&tv);
-
- /* avoid overflow with gap >1s */
- if (tv.tv_sec - ir->base_time.tv_sec > 1) {
- gap = 200000;
- } else {
- gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
- tv.tv_usec - ir->base_time.tv_usec;
- }
-
- /* signal we're ready to start a new code */
- ir->active = false;
-
- /* Allow some timer jitter (RC5 is ~24ms anyway so this is ok) */
- if (gap < 28000) {
- dprintk("spurious timer_end\n");
- return;
- }
-
- if (ir->last_bit < 20) {
- /* ignore spurious codes (caused by light/other remotes) */
- dprintk("short code: %x\n", ir->code);
- } else {
- ir->code = (ir->code << ir->shift_by) | 1;
- rc5 = bttv_rc5_decode(ir->code);
-
- /* two start bits? */
- if (RC5_START(rc5) != ir->start) {
- pr_info(DEVNAME ":"
- " rc5 start bits invalid: %u\n", RC5_START(rc5));
-
- /* right address? */
- } else if (RC5_ADDR(rc5) == ir->addr) {
- u32 toggle = RC5_TOGGLE(rc5);
- u32 instr = RC5_INSTR(rc5);
-
- /* Good code */
- rc_keydown(ir->dev, instr, toggle);
- dprintk("instruction %x, toggle %x\n",
- instr, toggle);
- }
- }
-}
-
-static int bttv_rc5_irq(struct bttv *btv)
-{
- struct bttv_ir *ir = btv->remote;
- struct timeval tv;
- u32 gpio;
- u32 gap;
- unsigned long current_jiffies;
-
- /* read gpio port */
- gpio = bttv_gpio_read(&btv->c);
-
- /* get time of bit */
- current_jiffies = jiffies;
- do_gettimeofday(&tv);
-
- /* avoid overflow with gap >1s */
- if (tv.tv_sec - ir->base_time.tv_sec > 1) {
- gap = 200000;
- } else {
- gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
- tv.tv_usec - ir->base_time.tv_usec;
- }
-
- dprintk("RC5 IRQ: gap %d us for %s\n",
- gap, (gpio & 0x20) ? "mark" : "space");
-
- /* remote IRQ? */
- if (!(gpio & 0x20))
- return 0;
-
- /* active code => add bit */
- if (ir->active) {
- /* only if in the code (otherwise spurious IRQ or timer
- late) */
- if (ir->last_bit < 28) {
- ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
- ir_rc5_remote_gap;
- ir->code |= 1 << ir->last_bit;
- }
- /* starting new code */
- } else {
- ir->active = true;
- ir->code = 0;
- ir->base_time = tv;
- ir->last_bit = 0;
-
- mod_timer(&ir->timer, current_jiffies + msecs_to_jiffies(30));
- }
-
- /* toggle GPIO pin 4 to reset the irq */
- bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
- bttv_gpio_write(&btv->c, gpio | (1 << 4));
- return 1;
-}
-
-/* ---------------------------------------------------------------------- */
-
-static void bttv_ir_start(struct bttv *btv, struct bttv_ir *ir)
-{
- if (ir->polling) {
- setup_timer(&ir->timer, bttv_input_timer, (unsigned long)btv);
- ir->timer.expires = jiffies + msecs_to_jiffies(1000);
- add_timer(&ir->timer);
- } else if (ir->rc5_gpio) {
- /* set timer_end for code completion */
- setup_timer(&ir->timer, bttv_rc5_timer_end, (unsigned long)ir);
- ir->shift_by = 1;
- ir->start = 3;
- ir->addr = 0x0;
- ir->rc5_remote_gap = ir_rc5_remote_gap;
- }
-}
-
-static void bttv_ir_stop(struct bttv *btv)
-{
- if (btv->remote->polling)
- del_timer_sync(&btv->remote->timer);
-
- if (btv->remote->rc5_gpio) {
- u32 gpio;
-
- del_timer_sync(&btv->remote->timer);
-
- gpio = bttv_gpio_read(&btv->c);
- bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
- }
-}
-
-/*
- * Get_key functions used by I2C remotes
- */
-
-static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
-{
- unsigned char b;
-
- /* poll IR chip */
- if (1 != i2c_master_recv(ir->c, &b, 1)) {
- dprintk("read error\n");
- return -EIO;
- }
-
- /* ignore 0xaa */
- if (b==0xaa)
- return 0;
- dprintk("key %02x\n", b);
-
- /*
- * NOTE:
- * lirc_i2c maps the pv951 code as:
- * addr = 0x61D6
- * cmd = bit_reverse (b)
- * So, it seems that this device uses NEC extended
- * I decided to not fix the table, due to two reasons:
- * 1) Without the actual device, this is only a guess;
- * 2) As the addr is not reported via I2C, nor can be changed,
- * the device is bound to the vendor-provided RC.
- */
-
- *ir_key = b;
- *ir_raw = b;
- return 1;
-}
-
-/* Instantiate the I2C IR receiver device, if present */
-void __devinit init_bttv_i2c_ir(struct bttv *btv)
-{
- const unsigned short addr_list[] = {
- 0x1a, 0x18, 0x64, 0x30, 0x71,
- I2C_CLIENT_END
- };
- struct i2c_board_info info;
-
- if (0 != btv->i2c_rc)
- return;
-
- memset(&info, 0, sizeof(struct i2c_board_info));
- memset(&btv->init_data, 0, sizeof(btv->init_data));
- strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
-
- switch (btv->c.type) {
- case BTTV_BOARD_PV951:
- btv->init_data.name = "PV951";
- btv->init_data.get_key = get_key_pv951;
- btv->init_data.ir_codes = RC_MAP_PV951;
- info.addr = 0x4b;
- break;
- default:
- /*
- * The external IR receiver is at i2c address 0x34 (0x35 for
- * reads). Future Hauppauge cards will have an internal
- * receiver at 0x30 (0x31 for reads). In theory, both can be
- * fitted, and Hauppauge suggest an external overrides an
- * internal.
- * That's why we probe 0x1a (~0x34) first. CB
- */
-
- i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list, NULL);
- return;
- }
-
- if (btv->init_data.name)
- info.platform_data = &btv->init_data;
- i2c_new_device(&btv->c.i2c_adap, &info);
-
- return;
-}
-
-int __devexit fini_bttv_i2c(struct bttv *btv)
-{
- if (0 != btv->i2c_rc)
- return 0;
-
- return i2c_del_adapter(&btv->c.i2c_adap);
-}
-
-int bttv_input_init(struct bttv *btv)
-{
- struct bttv_ir *ir;
- char *ir_codes = NULL;
- struct rc_dev *rc;
- int err = -ENOMEM;
-
- if (!btv->has_remote)
- return -ENODEV;
-
- ir = kzalloc(sizeof(*ir),GFP_KERNEL);
- rc = rc_allocate_device();
- if (!ir || !rc)
- goto err_out_free;
-
- /* detect & configure */
- switch (btv->c.type) {
- case BTTV_BOARD_AVERMEDIA:
- case BTTV_BOARD_AVPHONE98:
- case BTTV_BOARD_AVERMEDIA98:
- ir_codes = RC_MAP_AVERMEDIA;
- ir->mask_keycode = 0xf88000;
- ir->mask_keydown = 0x010000;
- ir->polling = 50; // ms
- break;
-
- case BTTV_BOARD_AVDVBT_761:
- case BTTV_BOARD_AVDVBT_771:
- ir_codes = RC_MAP_AVERMEDIA_DVBT;
- ir->mask_keycode = 0x0f00c0;
- ir->mask_keydown = 0x000020;
- ir->polling = 50; // ms
- break;
-
- case BTTV_BOARD_PXELVWPLTVPAK:
- ir_codes = RC_MAP_PIXELVIEW;
- ir->mask_keycode = 0x003e00;
- ir->mask_keyup = 0x010000;
- ir->polling = 50; // ms
- break;
- case BTTV_BOARD_PV_M4900:
- case BTTV_BOARD_PV_BT878P_9B:
- case BTTV_BOARD_PV_BT878P_PLUS:
- ir_codes = RC_MAP_PIXELVIEW;
- ir->mask_keycode = 0x001f00;
- ir->mask_keyup = 0x008000;
- ir->polling = 50; // ms
- break;
-
- case BTTV_BOARD_WINFAST2000:
- ir_codes = RC_MAP_WINFAST;
- ir->mask_keycode = 0x1f8;
- break;
- case BTTV_BOARD_MAGICTVIEW061:
- case BTTV_BOARD_MAGICTVIEW063:
- ir_codes = RC_MAP_WINFAST;
- ir->mask_keycode = 0x0008e000;
- ir->mask_keydown = 0x00200000;
- break;
- case BTTV_BOARD_APAC_VIEWCOMP:
- ir_codes = RC_MAP_APAC_VIEWCOMP;
- ir->mask_keycode = 0x001f00;
- ir->mask_keyup = 0x008000;
- ir->polling = 50; // ms
- break;
- case BTTV_BOARD_ASKEY_CPH03X:
- case BTTV_BOARD_CONCEPTRONIC_CTVFMI2:
- case BTTV_BOARD_CONTVFMI:
- ir_codes = RC_MAP_PIXELVIEW;
- ir->mask_keycode = 0x001F00;
- ir->mask_keyup = 0x006000;
- ir->polling = 50; // ms
- break;
- case BTTV_BOARD_NEBULA_DIGITV:
- ir_codes = RC_MAP_NEBULA;
- ir->rc5_gpio = true;
- break;
- case BTTV_BOARD_MACHTV_MAGICTV:
- ir_codes = RC_MAP_APAC_VIEWCOMP;
- ir->mask_keycode = 0x001F00;
- ir->mask_keyup = 0x004000;
- ir->polling = 50; /* ms */
- break;
- case BTTV_BOARD_KOZUMI_KTV_01C:
- ir_codes = RC_MAP_PCTV_SEDNA;
- ir->mask_keycode = 0x001f00;
- ir->mask_keyup = 0x006000;
- ir->polling = 50; /* ms */
- break;
- case BTTV_BOARD_ENLTV_FM_2:
- ir_codes = RC_MAP_ENCORE_ENLTV2;
- ir->mask_keycode = 0x00fd00;
- ir->mask_keyup = 0x000080;
- ir->polling = 1; /* ms */
- ir->last_gpio = ir_extract_bits(bttv_gpio_read(&btv->c),
- ir->mask_keycode);
- break;
- }
- if (NULL == ir_codes) {
- dprintk("Ooops: IR config error [card=%d]\n", btv->c.type);
- err = -ENODEV;
- goto err_out_free;
- }
-
- if (ir->rc5_gpio) {
- u32 gpio;
- /* enable remote irq */
- bttv_gpio_inout(&btv->c, (1 << 4), 1 << 4);
- gpio = bttv_gpio_read(&btv->c);
- bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
- bttv_gpio_write(&btv->c, gpio | (1 << 4));
- } else {
- /* init hardware-specific stuff */
- bttv_gpio_inout(&btv->c, ir->mask_keycode | ir->mask_keydown, 0);
- }
-
- /* init input device */
- ir->dev = rc;
-
- snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
- btv->c.type);
- snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
- pci_name(btv->c.pci));
-
- rc->input_name = ir->name;
- rc->input_phys = ir->phys;
- rc->input_id.bustype = BUS_PCI;
- rc->input_id.version = 1;
- if (btv->c.pci->subsystem_vendor) {
- rc->input_id.vendor = btv->c.pci->subsystem_vendor;
- rc->input_id.product = btv->c.pci->subsystem_device;
- } else {
- rc->input_id.vendor = btv->c.pci->vendor;
- rc->input_id.product = btv->c.pci->device;
- }
- rc->dev.parent = &btv->c.pci->dev;
- rc->map_name = ir_codes;
- rc->driver_name = MODULE_NAME;
-
- btv->remote = ir;
- bttv_ir_start(btv, ir);
-
- /* all done */
- err = rc_register_device(rc);
- if (err)
- goto err_out_stop;
-
- return 0;
-
- err_out_stop:
- bttv_ir_stop(btv);
- btv->remote = NULL;
- err_out_free:
- rc_free_device(rc);
- kfree(ir);
- return err;
-}
-
-void bttv_input_fini(struct bttv *btv)
-{
- if (btv->remote == NULL)
- return;
-
- bttv_ir_stop(btv);
- rc_unregister_device(btv->remote->dev);
- kfree(btv->remote);
- btv->remote = NULL;
-}