diff options
Diffstat (limited to 'drivers/media/video/tea6420.c')
-rw-r--r-- | drivers/media/video/tea6420.c | 68 |
1 files changed, 30 insertions, 38 deletions
diff --git a/drivers/media/video/tea6420.c b/drivers/media/video/tea6420.c index 7546509c8282..34922232402a 100644 --- a/drivers/media/video/tea6420.c +++ b/drivers/media/video/tea6420.c | |||
@@ -32,7 +32,8 @@ | |||
32 | #include <linux/ioctl.h> | 32 | #include <linux/ioctl.h> |
33 | #include <linux/i2c.h> | 33 | #include <linux/i2c.h> |
34 | #include <media/v4l2-device.h> | 34 | #include <media/v4l2-device.h> |
35 | #include <media/v4l2-i2c-drv-legacy.h> | 35 | #include <media/v4l2-chip-ident.h> |
36 | #include <media/v4l2-i2c-drv.h> | ||
36 | #include "tea6420.h" | 37 | #include "tea6420.h" |
37 | 38 | ||
38 | MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); | 39 | MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); |
@@ -44,24 +45,23 @@ module_param(debug, int, 0644); | |||
44 | 45 | ||
45 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | 46 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); |
46 | 47 | ||
47 | /* addresses to scan, found only at 0x4c and/or 0x4d (7-Bit) */ | ||
48 | static unsigned short normal_i2c[] = { I2C_ADDR_TEA6420_1, I2C_ADDR_TEA6420_2, I2C_CLIENT_END }; | ||
49 | |||
50 | /* magic definition of all other variables and things */ | ||
51 | I2C_CLIENT_INSMOD; | ||
52 | 48 | ||
53 | /* make a connection between the input 'i' and the output 'o' | 49 | /* make a connection between the input 'i' and the output 'o' |
54 | with gain 'g' for the tea6420-client 'client' (note: i = 6 means 'mute') */ | 50 | with gain 'g' (note: i = 6 means 'mute') */ |
55 | static int tea6420_switch(struct i2c_client *client, int i, int o, int g) | 51 | static int tea6420_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route) |
56 | { | 52 | { |
53 | struct i2c_client *client = v4l2_get_subdevdata(sd); | ||
54 | int i = route->input; | ||
55 | int o = route->output & 0xf; | ||
56 | int g = (route->output >> 4) & 0xf; | ||
57 | u8 byte; | 57 | u8 byte; |
58 | int ret; | 58 | int ret; |
59 | 59 | ||
60 | v4l_dbg(1, debug, client, "i=%d, o=%d, g=%d\n", i, o, g); | 60 | v4l2_dbg(1, debug, sd, "i=%d, o=%d, g=%d\n", i, o, g); |
61 | 61 | ||
62 | /* check if the parameters are valid */ | 62 | /* check if the parameters are valid */ |
63 | if (i < 1 || i > 6 || o < 1 || o > 4 || g < 0 || g > 6 || g % 2 != 0) | 63 | if (i < 1 || i > 6 || o < 1 || o > 4 || g < 0 || g > 6 || g % 2 != 0) |
64 | return -1; | 64 | return -EINVAL; |
65 | 65 | ||
66 | byte = ((o - 1) << 5); | 66 | byte = ((o - 1) << 5); |
67 | byte |= (i - 1); | 67 | byte |= (i - 1); |
@@ -83,37 +83,33 @@ static int tea6420_switch(struct i2c_client *client, int i, int o, int g) | |||
83 | 83 | ||
84 | ret = i2c_smbus_write_byte(client, byte); | 84 | ret = i2c_smbus_write_byte(client, byte); |
85 | if (ret) { | 85 | if (ret) { |
86 | v4l_dbg(1, debug, client, | 86 | v4l2_dbg(1, debug, sd, |
87 | "i2c_smbus_write_byte() failed, ret:%d\n", ret); | 87 | "i2c_smbus_write_byte() failed, ret:%d\n", ret); |
88 | return -EIO; | 88 | return -EIO; |
89 | } | 89 | } |
90 | return 0; | 90 | return 0; |
91 | } | 91 | } |
92 | 92 | ||
93 | static long tea6420_ioctl(struct v4l2_subdev *sd, unsigned cmd, void *arg) | 93 | static int tea6420_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) |
94 | { | 94 | { |
95 | if (cmd == TEA6420_SWITCH) { | 95 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
96 | struct i2c_client *client = v4l2_get_subdevdata(sd); | ||
97 | struct tea6420_multiplex *a = (struct tea6420_multiplex *)arg; | ||
98 | 96 | ||
99 | return tea6420_switch(client, a->in, a->out, a->gain); | 97 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TEA6420, 0); |
100 | } | ||
101 | return -ENOIOCTLCMD; | ||
102 | } | ||
103 | |||
104 | static int tea6420_command(struct i2c_client *client, unsigned cmd, void *arg) | ||
105 | { | ||
106 | return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg); | ||
107 | } | 98 | } |
108 | 99 | ||
109 | /* ----------------------------------------------------------------------- */ | 100 | /* ----------------------------------------------------------------------- */ |
110 | 101 | ||
111 | static const struct v4l2_subdev_core_ops tea6420_core_ops = { | 102 | static const struct v4l2_subdev_core_ops tea6420_core_ops = { |
112 | .ioctl = tea6420_ioctl, | 103 | .g_chip_ident = tea6420_g_chip_ident, |
104 | }; | ||
105 | |||
106 | static const struct v4l2_subdev_audio_ops tea6420_audio_ops = { | ||
107 | .s_routing = tea6420_s_routing, | ||
113 | }; | 108 | }; |
114 | 109 | ||
115 | static const struct v4l2_subdev_ops tea6420_ops = { | 110 | static const struct v4l2_subdev_ops tea6420_ops = { |
116 | .core = &tea6420_core_ops, | 111 | .core = &tea6420_core_ops, |
112 | .audio = &tea6420_audio_ops, | ||
117 | }; | 113 | }; |
118 | 114 | ||
119 | /* this function is called by i2c_probe */ | 115 | /* this function is called by i2c_probe */ |
@@ -130,20 +126,24 @@ static int tea6420_probe(struct i2c_client *client, | |||
130 | v4l_info(client, "chip found @ 0x%x (%s)\n", | 126 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
131 | client->addr << 1, client->adapter->name); | 127 | client->addr << 1, client->adapter->name); |
132 | 128 | ||
129 | sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); | ||
130 | if (sd == NULL) | ||
131 | return -ENOMEM; | ||
132 | v4l2_i2c_subdev_init(sd, client, &tea6420_ops); | ||
133 | |||
133 | /* set initial values: set "mute"-input to all outputs at gain 0 */ | 134 | /* set initial values: set "mute"-input to all outputs at gain 0 */ |
134 | err = 0; | 135 | err = 0; |
135 | for (i = 1; i < 5; i++) { | 136 | for (i = 1; i < 5; i++) { |
136 | err += tea6420_switch(client, 6, i, 0); | 137 | struct v4l2_routing route; |
138 | |||
139 | route.input = 6; | ||
140 | route.output = i; | ||
141 | err += tea6420_s_routing(sd, &route); | ||
137 | } | 142 | } |
138 | if (err) { | 143 | if (err) { |
139 | v4l_dbg(1, debug, client, "could not initialize tea6420\n"); | 144 | v4l_dbg(1, debug, client, "could not initialize tea6420\n"); |
140 | return -ENODEV; | 145 | return -ENODEV; |
141 | } | 146 | } |
142 | |||
143 | sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); | ||
144 | if (sd == NULL) | ||
145 | return -ENOMEM; | ||
146 | v4l2_i2c_subdev_init(sd, client, &tea6420_ops); | ||
147 | return 0; | 147 | return 0; |
148 | } | 148 | } |
149 | 149 | ||
@@ -156,12 +156,6 @@ static int tea6420_remove(struct i2c_client *client) | |||
156 | return 0; | 156 | return 0; |
157 | } | 157 | } |
158 | 158 | ||
159 | static int tea6420_legacy_probe(struct i2c_adapter *adapter) | ||
160 | { | ||
161 | /* Let's see whether this is a known adapter we can attach to. | ||
162 | Prevents conflicts with tvaudio.c. */ | ||
163 | return adapter->id == I2C_HW_SAA7146; | ||
164 | } | ||
165 | 159 | ||
166 | static const struct i2c_device_id tea6420_id[] = { | 160 | static const struct i2c_device_id tea6420_id[] = { |
167 | { "tea6420", 0 }, | 161 | { "tea6420", 0 }, |
@@ -171,9 +165,7 @@ MODULE_DEVICE_TABLE(i2c, tea6420_id); | |||
171 | 165 | ||
172 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { | 166 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { |
173 | .name = "tea6420", | 167 | .name = "tea6420", |
174 | .command = tea6420_command, | ||
175 | .probe = tea6420_probe, | 168 | .probe = tea6420_probe, |
176 | .remove = tea6420_remove, | 169 | .remove = tea6420_remove, |
177 | .legacy_probe = tea6420_legacy_probe, | ||
178 | .id_table = tea6420_id, | 170 | .id_table = tea6420_id, |
179 | }; | 171 | }; |