Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=08e140544029192a123cc2cbf28edeb5d5462ad2
Commit:     08e140544029192a123cc2cbf28edeb5d5462ad2
Parent:     88307eb3c69c80a705072e68463d8f72005fc027
Author:     Hans Verkuil <[EMAIL PROTECTED]>
AuthorDate: Fri Sep 14 04:50:44 2007 -0300
Committer:  Mauro Carvalho Chehab <[EMAIL PROTECTED]>
CommitDate: Fri Jan 25 19:01:24 2008 -0200

    V4L/DVB (6461): tvaudio: convert to bus-based I2C API
    
    Signed-off-by: Hans Verkuil <[EMAIL PROTECTED]>
    Signed-off-by: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
---
 drivers/media/video/tvaudio.c |  198 +++++++++++++++++-----------------------
 1 files changed, 84 insertions(+), 114 deletions(-)

diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index bb510dd..a755605 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -31,6 +31,7 @@
 #include <media/tvaudio.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv-legacy.h>
 
 #include <media/i2c-addr.h>
 
@@ -109,7 +110,7 @@ static struct CHIPDESC chiplist[];
 
 /* current state of the chip */
 struct CHIPSTATE {
-       struct i2c_client c;
+       struct i2c_client *c;
 
        /* index into CHIPDESC array */
        int type;
@@ -145,10 +146,6 @@ static unsigned short normal_i2c[] = {
        I2C_CLIENT_END };
 I2C_CLIENT_INSMOD;
 
-static struct i2c_driver driver;
-static struct i2c_client client_template;
-
-
 /* ---------------------------------------------------------------------- */
 /* i2c I/O functions                                                      */
 
@@ -157,24 +154,24 @@ static int chip_write(struct CHIPSTATE *chip, int 
subaddr, int val)
        unsigned char buffer[2];
 
        if (-1 == subaddr) {
-               v4l_dbg(1, debug, &chip->c, "%s: chip_write: 0x%x\n",
-                       chip->c.name, val);
+               v4l_dbg(1, debug, chip->c, "%s: chip_write: 0x%x\n",
+                       chip->c->name, val);
                chip->shadow.bytes[1] = val;
                buffer[0] = val;
-               if (1 != i2c_master_send(&chip->c,buffer,1)) {
-                       v4l_warn(&chip->c, "%s: I/O error (write 0x%x)\n",
-                               chip->c.name, val);
+               if (1 != i2c_master_send(chip->c,buffer,1)) {
+                       v4l_warn(chip->c, "%s: I/O error (write 0x%x)\n",
+                               chip->c->name, val);
                        return -1;
                }
        } else {
-               v4l_dbg(1, debug, &chip->c, "%s: chip_write: reg%d=0x%x\n",
-                       chip->c.name, subaddr, val);
+               v4l_dbg(1, debug, chip->c, "%s: chip_write: reg%d=0x%x\n",
+                       chip->c->name, subaddr, val);
                chip->shadow.bytes[subaddr+1] = val;
                buffer[0] = subaddr;
                buffer[1] = val;
-               if (2 != i2c_master_send(&chip->c,buffer,2)) {
-                       v4l_warn(&chip->c, "%s: I/O error (write reg%d=0x%x)\n",
-                       chip->c.name, subaddr, val);
+               if (2 != i2c_master_send(chip->c,buffer,2)) {
+                       v4l_warn(chip->c, "%s: I/O error (write reg%d=0x%x)\n",
+                       chip->c->name, subaddr, val);
                        return -1;
                }
        }
@@ -197,12 +194,12 @@ static int chip_read(struct CHIPSTATE *chip)
 {
        unsigned char buffer;
 
-       if (1 != i2c_master_recv(&chip->c,&buffer,1)) {
-               v4l_warn(&chip->c, "%s: I/O error (read)\n",
-               chip->c.name);
+       if (1 != i2c_master_recv(chip->c,&buffer,1)) {
+               v4l_warn(chip->c, "%s: I/O error (read)\n",
+               chip->c->name);
                return -1;
        }
-       v4l_dbg(1, debug, &chip->c, "%s: chip_read: 0x%x\n",chip->c.name, 
buffer);
+       v4l_dbg(1, debug, chip->c, "%s: chip_read: 0x%x\n",chip->c->name, 
buffer);
        return buffer;
 }
 
@@ -211,17 +208,17 @@ static int chip_read2(struct CHIPSTATE *chip, int subaddr)
        unsigned char write[1];
        unsigned char read[1];
        struct i2c_msg msgs[2] = {
-               { chip->c.addr, 0,        1, write },
-               { chip->c.addr, I2C_M_RD, 1, read  }
+               { chip->c->addr, 0,        1, write },
+               { chip->c->addr, I2C_M_RD, 1, read  }
        };
        write[0] = subaddr;
 
-       if (2 != i2c_transfer(chip->c.adapter,msgs,2)) {
-               v4l_warn(&chip->c, "%s: I/O error (read2)\n", chip->c.name);
+       if (2 != i2c_transfer(chip->c->adapter,msgs,2)) {
+               v4l_warn(chip->c, "%s: I/O error (read2)\n", chip->c->name);
                return -1;
        }
-       v4l_dbg(1, debug, &chip->c, "%s: chip_read2: reg%d=0x%x\n",
-               chip->c.name, subaddr,read[0]);
+       v4l_dbg(1, debug, chip->c, "%s: chip_read2: reg%d=0x%x\n",
+               chip->c->name, subaddr,read[0]);
        return read[0];
 }
 
@@ -233,8 +230,8 @@ static int chip_cmd(struct CHIPSTATE *chip, char *name, 
audiocmd *cmd)
                return 0;
 
        /* update our shadow register set; print bytes if (debug > 0) */
-       v4l_dbg(1, debug, &chip->c, "%s: chip_cmd(%s): reg=%d, data:",
-               chip->c.name, name,cmd->bytes[0]);
+       v4l_dbg(1, debug, chip->c, "%s: chip_cmd(%s): reg=%d, data:",
+               chip->c->name, name,cmd->bytes[0]);
        for (i = 1; i < cmd->count; i++) {
                if (debug)
                        printk(" 0x%x",cmd->bytes[i]);
@@ -244,8 +241,8 @@ static int chip_cmd(struct CHIPSTATE *chip, char *name, 
audiocmd *cmd)
                printk("\n");
 
        /* send data to the chip */
-       if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) {
-               v4l_warn(&chip->c, "%s: I/O error (%s)\n", chip->c.name, name);
+       if (cmd->count != i2c_master_send(chip->c,cmd->bytes,cmd->count)) {
+               v4l_warn(chip->c, "%s: I/O error (%s)\n", chip->c->name, name);
                return -1;
        }
        return 0;
@@ -269,7 +266,7 @@ static int chip_thread(void *data)
        struct CHIPSTATE *chip = data;
        struct CHIPDESC  *desc = chiplist + chip->type;
 
-       v4l_dbg(1, debug, &chip->c, "%s: thread started\n", chip->c.name);
+       v4l_dbg(1, debug, chip->c, "%s: thread started\n", chip->c->name);
        set_freezable();
        for (;;) {
                set_current_state(TASK_INTERRUPTIBLE);
@@ -279,7 +276,7 @@ static int chip_thread(void *data)
                try_to_freeze();
                if (kthread_should_stop())
                        break;
-               v4l_dbg(1, debug, &chip->c, "%s: thread wakeup\n", 
chip->c.name);
+               v4l_dbg(1, debug, chip->c, "%s: thread wakeup\n", 
chip->c->name);
 
                /* don't do anything for radio or if mode != auto */
                if (chip->radio || chip->mode != 0)
@@ -292,7 +289,7 @@ static int chip_thread(void *data)
                mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
        }
 
-       v4l_dbg(1, debug, &chip->c, "%s: thread exiting\n", chip->c.name);
+       v4l_dbg(1, debug, chip->c, "%s: thread exiting\n", chip->c->name);
        return 0;
 }
 
@@ -304,7 +301,7 @@ static void generic_checkmode(struct CHIPSTATE *chip)
        if (mode == chip->prevmode)
        return;
 
-       v4l_dbg(1, debug, &chip->c, "%s: thread checkmode\n", chip->c.name);
+       v4l_dbg(1, debug, chip->c, "%s: thread checkmode\n", chip->c->name);
        chip->prevmode = mode;
 
        if (mode & V4L2_TUNER_MODE_STEREO)
@@ -353,7 +350,7 @@ static int tda9840_getmode(struct CHIPSTATE *chip)
        if (val & TDA9840_ST_STEREO)
                mode |= V4L2_TUNER_MODE_STEREO;
 
-       v4l_dbg(1, debug, &chip->c, "tda9840_getmode(): raw chip read: %d, 
return: %d\n",
+       v4l_dbg(1, debug, chip->c, "tda9840_getmode(): raw chip read: %d, 
return: %d\n",
                val, mode);
        return mode;
 }
@@ -657,7 +654,7 @@ static int tda9873_getmode(struct CHIPSTATE *chip)
                mode |= V4L2_TUNER_MODE_STEREO;
        if (val & TDA9873_DUAL)
                mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
-       v4l_dbg(1, debug, &chip->c, "tda9873_getmode(): raw chip read: %d, 
return: %d\n",
+       v4l_dbg(1, debug, chip->c, "tda9873_getmode(): raw chip read: %d, 
return: %d\n",
                val, mode);
        return mode;
 }
@@ -668,12 +665,12 @@ static void tda9873_setmode(struct CHIPSTATE *chip, int 
mode)
        /*      int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
 
        if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
-               v4l_dbg(1, debug, &chip->c, "tda9873_setmode(): external 
input\n");
+               v4l_dbg(1, debug, chip->c, "tda9873_setmode(): external 
input\n");
                return;
        }
 
-       v4l_dbg(1, debug, &chip->c, "tda9873_setmode(): chip->shadow.bytes[%d] 
= %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
-       v4l_dbg(1, debug, &chip->c, "tda9873_setmode(): sw_data  = %d\n", 
sw_data);
+       v4l_dbg(1, debug, chip->c, "tda9873_setmode(): chip->shadow.bytes[%d] = 
%d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
+       v4l_dbg(1, debug, chip->c, "tda9873_setmode(): sw_data  = %d\n", 
sw_data);
 
        switch (mode) {
        case V4L2_TUNER_MODE_MONO:
@@ -694,7 +691,7 @@ static void tda9873_setmode(struct CHIPSTATE *chip, int 
mode)
        }
 
        chip_write(chip, TDA9873_SW, sw_data);
-       v4l_dbg(1, debug, &chip->c, "tda9873_setmode(): req. mode %d; 
chip_write: %d\n",
+       v4l_dbg(1, debug, chip->c, "tda9873_setmode(): req. mode %d; 
chip_write: %d\n",
                mode, sw_data);
 }
 
@@ -833,7 +830,7 @@ static int tda9874a_setup(struct CHIPSTATE *chip)
                chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
                chip_write(chip, TDA9874A_AOSR, 0x00); /* or 0x10 */
        }
-       v4l_dbg(1, debug, &chip->c, "tda9874a_setup(): %s [0x%02X].\n",
+       v4l_dbg(1, debug, chip->c, "tda9874a_setup(): %s [0x%02X].\n",
                tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
        return 1;
 }
@@ -876,7 +873,7 @@ static int tda9874a_getmode(struct CHIPSTATE *chip)
                        mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
        }
 
-       v4l_dbg(1, debug, &chip->c, "tda9874a_getmode(): DSR=0x%X, NSR=0x%X, 
NECR=0x%X, return: %d.\n",
+       v4l_dbg(1, debug, chip->c, "tda9874a_getmode(): DSR=0x%X, NSR=0x%X, 
NECR=0x%X, return: %d.\n",
                 dsr, nsr, necr, mode);
        return mode;
 }
@@ -922,7 +919,7 @@ static void tda9874a_setmode(struct CHIPSTATE *chip, int 
mode)
                chip_write(chip, TDA9874A_AOSR, aosr);
                chip_write(chip, TDA9874A_MDACOSR, mdacosr);
 
-               v4l_dbg(1, debug, &chip->c, "tda9874a_setmode(): req. mode %d; 
AOSR=0x%X, MDACOSR=0x%X.\n",
+               v4l_dbg(1, debug, chip->c, "tda9874a_setmode(): req. mode %d; 
AOSR=0x%X, MDACOSR=0x%X.\n",
                        mode, aosr, mdacosr);
 
        } else { /* dic == 0x07 */
@@ -957,7 +954,7 @@ static void tda9874a_setmode(struct CHIPSTATE *chip, int 
mode)
                chip_write(chip, TDA9874A_FMMR, fmmr);
                chip_write(chip, TDA9874A_AOSR, aosr);
 
-               v4l_dbg(1, debug, &chip->c, "tda9874a_setmode(): req. mode %d; 
FMMR=0x%X, AOSR=0x%X.\n",
+               v4l_dbg(1, debug, chip->c, "tda9874a_setmode(): req. mode %d; 
FMMR=0x%X, AOSR=0x%X.\n",
                        mode, fmmr, aosr);
        }
 }
@@ -971,10 +968,10 @@ static int tda9874a_checkit(struct CHIPSTATE *chip)
        if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
                return 0;
 
-       v4l_dbg(1, debug, &chip->c, "tda9874a_checkit(): DIC=0x%X, 
SIC=0x%X.\n", dic, sic);
+       v4l_dbg(1, debug, chip->c, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", 
dic, sic);
 
        if((dic == 0x11)||(dic == 0x07)) {
-               v4l_info(&chip->c, "found tda9874%s.\n", (dic == 0x11) ? 
"a":"h");
+               v4l_info(chip->c, "found tda9874%s.\n", (dic == 0x11) ? 
"a":"h");
                tda9874a_dic = dic;     /* remember device id. */
                return 1;
        }
@@ -1097,7 +1094,7 @@ static int tda8425_initialize(struct CHIPSTATE *chip)
        int inputmap[4] = { /* tuner    */ TDA8425_S1_CH2, /* radio  */ 
TDA8425_S1_CH1,
                            /* extern   */ TDA8425_S1_CH1, /* intern */ 
TDA8425_S1_OFF};
 
-       if (chip->c.adapter->id == I2C_HW_B_RIVA) {
+       if (chip->c->adapter->id == I2C_HW_B_RIVA) {
                memcpy (desc->inputmap, inputmap, sizeof (inputmap));
        }
        return 0;
@@ -1185,7 +1182,7 @@ static int ta8874z_getmode(struct CHIPSTATE *chip)
        }else if (!(val & TA8874Z_B0)){
                mode |= V4L2_TUNER_MODE_STEREO;
        }
-       /* v4l_dbg(1, debug, &chip->c, "ta8874z_getmode(): raw chip read: 
0x%02x, return: 0x%02x\n", val, mode); */
+       /* v4l_dbg(1, debug, chip->c, "ta8874z_getmode(): raw chip read: 
0x%02x, return: 0x%02x\n", val, mode); */
        return mode;
 }
 
@@ -1198,7 +1195,7 @@ static void ta8874z_setmode(struct CHIPSTATE *chip, int 
mode)
 {
        int update = 1;
        audiocmd *t = NULL;
-       v4l_dbg(1, debug, &chip->c, "ta8874z_setmode(): mode: 0x%02x\n", mode);
+       v4l_dbg(1, debug, chip->c, "ta8874z_setmode(): mode: 0x%02x\n", mode);
 
        switch(mode){
        case V4L2_TUNER_MODE_MONO:
@@ -1464,51 +1461,55 @@ static struct CHIPDESC chiplist[] = {
 /* ---------------------------------------------------------------------- */
 /* i2c registration                                                       */
 
-static int chip_attach(struct i2c_adapter *adap, int addr, int kind)
+static int chip_probe(struct i2c_client *client)
 {
        struct CHIPSTATE *chip;
        struct CHIPDESC  *desc;
 
+       if (debug) {
+               printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux 
driver\n");
+               printk(KERN_INFO "tvaudio: known chips: ");
+               for (desc = chiplist; desc->name != NULL; desc++)
+                       printk("%s%s", (desc == chiplist) ? "" : ", ", 
desc->name);
+               printk("\n");
+       }
+
        chip = kzalloc(sizeof(*chip),GFP_KERNEL);
        if (!chip)
                return -ENOMEM;
-       memcpy(&chip->c,&client_template,sizeof(struct i2c_client));
-       chip->c.adapter = adap;
-       chip->c.addr = addr;
-       i2c_set_clientdata(&chip->c, chip);
+       chip->c = client;
+       i2c_set_clientdata(client, chip);
 
        /* find description for the chip */
-       v4l_dbg(1, debug, &chip->c, "chip found @ 0x%x\n", addr<<1);
+       v4l_dbg(1, debug, client, "chip found @ 0x%x\n", client->addr<<1);
        for (desc = chiplist; desc->name != NULL; desc++) {
                if (0 == *(desc->insmodopt))
                        continue;
-               if (addr < desc->addr_lo ||
-                   addr > desc->addr_hi)
+               if (client->addr < desc->addr_lo ||
+                   client->addr > desc->addr_hi)
                        continue;
                if (desc->checkit && !desc->checkit(chip))
                        continue;
                break;
        }
        if (desc->name == NULL) {
-               v4l_dbg(1, debug, &chip->c, "no matching chip description 
found\n");
+               v4l_dbg(1, debug, client, "no matching chip description 
found\n");
                return -EIO;
        }
-       v4l_info(&chip->c, "%s found @ 0x%x (%s)\n", desc->name, addr<<1, 
adap->name);
+       v4l_info(client, "%s found @ 0x%x (%s)\n", desc->name, client->addr<<1, 
client->adapter->name);
        if (desc->flags) {
-               v4l_dbg(1, debug, &chip->c, "matches:%s%s%s.\n",
+               v4l_dbg(1, debug, client, "matches:%s%s%s.\n",
                        (desc->flags & CHIP_HAS_VOLUME)     ? " volume"      : 
"",
                        (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : 
"",
                        (desc->flags & CHIP_HAS_INPUTSEL)   ? " audiomux"    : 
"");
        }
 
        /* fill required data structures */
-       strcpy(chip->c.name, desc->name);
+       strcpy(client->name, desc->name);
        chip->type = desc-chiplist;
        chip->shadow.count = desc->registers+1;
        chip->prevmode = -1;
        chip->audmode = V4L2_TUNER_MODE_LANG1;
-       /* register */
-       i2c_attach_client(&chip->c);
 
        /* initialization  */
        if (desc->initialize != NULL)
@@ -1535,28 +1536,17 @@ static int chip_attach(struct i2c_adapter *adap, int 
addr, int kind)
                init_timer(&chip->wt);
                chip->wt.function = chip_thread_wake;
                chip->wt.data     = (unsigned long)chip;
-               chip->thread = kthread_run(chip_thread, chip, chip->c.name);
+               chip->thread = kthread_run(chip_thread, chip, chip->c->name);
                if (IS_ERR(chip->thread)) {
-                       v4l_warn(&chip->c, "%s: failed to create kthread\n",
-                              chip->c.name);
+                       v4l_warn(chip->c, "%s: failed to create kthread\n",
+                              chip->c->name);
                        chip->thread = NULL;
                }
        }
        return 0;
 }
 
-static int chip_probe(struct i2c_adapter *adap)
-{
-       /* don't attach on saa7146 based cards,
-          because dedicated drivers are used */
-       if ((adap->id == I2C_HW_SAA7146))
-               return 0;
-       if (adap->class & I2C_CLASS_TV_ANALOG)
-               return i2c_probe(adap, &addr_data, chip_attach);
-       return 0;
-}
-
-static int chip_detach(struct i2c_client *client)
+static int chip_remove(struct i2c_client *client)
 {
        struct CHIPSTATE *chip = i2c_get_clientdata(client);
 
@@ -1567,7 +1557,6 @@ static int chip_detach(struct i2c_client *client)
                chip->thread = NULL;
        }
 
-       i2c_detach_client(&chip->c);
        kfree(chip);
        return 0;
 }
@@ -1693,7 +1682,7 @@ static int chip_command(struct i2c_client *client,
        struct CHIPSTATE *chip = i2c_get_clientdata(client);
        struct CHIPDESC  *desc = chiplist + chip->type;
 
-       v4l_dbg(1, debug, &chip->c, "%s: chip_command 0x%x\n", chip->c.name, 
cmd);
+       v4l_dbg(1, debug, chip->c, "%s: chip_command 0x%x\n", chip->c->name, 
cmd);
 
        switch (cmd) {
        case AUDC_SET_RADIO:
@@ -1830,44 +1819,25 @@ static int chip_command(struct i2c_client *client,
        return 0;
 }
 
-static struct i2c_driver driver = {
-       .driver = {
-               .name    = "tvaudio",
-       },
-       .id              = I2C_DRIVERID_TVAUDIO,
-       .attach_adapter  = chip_probe,
-       .detach_client   = chip_detach,
-       .command         = chip_command,
-};
-
-static struct i2c_client client_template =
-{
-       .name       = "(unset)",
-       .driver     = &driver,
-};
-
-static int __init audiochip_init_module(void)
-{
-       struct CHIPDESC  *desc;
-
-       if (debug) {
-               printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux 
driver\n");
-               printk(KERN_INFO "tvaudio: known chips: ");
-               for (desc = chiplist; desc->name != NULL; desc++)
-                       printk("%s%s", (desc == chiplist) ? "" : ", ", 
desc->name);
-               printk("\n");
-       }
-
-       return i2c_add_driver(&driver);
-}
-
-static void __exit audiochip_cleanup_module(void)
+static int chip_legacy_probe(struct i2c_adapter *adap)
 {
-       i2c_del_driver(&driver);
+       /* don't attach on saa7146 based cards,
+          because dedicated drivers are used */
+       if ((adap->id == I2C_HW_SAA7146))
+               return 0;
+       if (adap->class & I2C_CLASS_TV_ANALOG)
+               return 1;
+       return 0;
 }
 
-module_init(audiochip_init_module);
-module_exit(audiochip_cleanup_module);
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+       .name = "tvaudio",
+       .driverid = I2C_DRIVERID_TVAUDIO,
+       .command = chip_command,
+       .probe = chip_probe,
+       .remove = chip_remove,
+       .legacy_probe = chip_legacy_probe,
+};
 
 /*
  * Local variables:
-
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