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Date: Thu, 9 Dec 2021 12:41:07 +0100
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: unlisted-recipients:; (no To-header on input)
Cc: linuxarm@...wei.com, mauro.chehab@...wei.com,
Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
Antti Palosaari <crope@....fi>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH v2 4/4] media: si2157: use a different namespace for firmware
Each chip at the si21xx TER family seems to have a different firmware,
with seems to actually be a patch against the ROM code.
Rework the code in orde to use different firmware files depending
at the chip ID and rom ID.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
See [PATCH v2 0/4] at: https://lore.kernel.org/all/cover.1639049865.git.mchehab+huawei@kernel.org/
drivers/media/tuners/si2157.c | 172 ++++++++++++++++-------------
drivers/media/tuners/si2157_priv.h | 14 +++
2 files changed, 110 insertions(+), 76 deletions(-)
diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index 5f4ae8593864..f28eab17e82f 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -76,6 +76,36 @@ static int si2157_cmd_execute(struct i2c_client *client, struct si2157_cmd *cmd)
return ret;
}
+enum si2157_chip_type {
+ SI2141 = 41,
+ SI2146 = 46,
+ SI2147 = 47,
+ SI2148 = 48,
+ SI2157 = 57,
+ SI2158 = 58,
+ SI2177 = 77,
+};
+
+struct si2157_firmware {
+ enum si2157_chip_type chip_id;
+ unsigned char rom_id;
+ bool required;
+ const char *fw_name, *fw_alt_name;
+};
+
+static const struct si2157_firmware si2157_fw[] = {
+ { SI2141, false, 0x60, SI2141_60_FIRMWARE, SI2141_A10_FIRMWARE },
+ { SI2141, false, 0x61, SI2141_61_FIRMWARE, SI2141_A10_FIRMWARE },
+ { SI2146, false, 0x11, SI2146_11_FIRMWARE, NULL },
+ { SI2147, false, 0x50, SI2147_50_FIRMWARE, NULL },
+ { SI2148, true, 0x32, SI2148_32_FIRMWARE, SI2158_A20_FIRMWARE },
+ { SI2148, true, 0x33, SI2148_33_FIRMWARE, SI2158_A20_FIRMWARE },
+ { SI2157, false, 0x50, SI2157_50_FIRMWARE, SI2157_A30_FIRMWARE },
+ { SI2158, false, 0x50, SI2158_50_FIRMWARE, SI2158_A20_FIRMWARE },
+ { SI2158, false, 0x51, SI2158_51_FIRMWARE, SI2158_A20_FIRMWARE },
+ { SI2177, false, 0x50, SI2177_50_FIRMWARE, SI2157_A30_FIRMWARE },
+};
+
static int si2157_load_firmware(struct dvb_frontend *fe,
const char *fw_name)
{
@@ -124,16 +154,63 @@ static int si2157_load_firmware(struct dvb_frontend *fe,
return ret;
}
+static int si2157_find_and_load_firmware(struct dvb_frontend *fe)
+{
+ struct i2c_client *client = fe->tuner_priv;
+ unsigned char chip_id, rom_id;
+ struct si2157_cmd cmd;
+ int ret, i;
+
+ /* query chip revision */
+ memcpy(cmd.args, "\x02", 1);
+ cmd.wlen = 1;
+ cmd.rlen = 13;
+ ret = si2157_cmd_execute(client, &cmd);
+ if (ret)
+ return ret;
+
+ chip_id = cmd.args[2];
+ rom_id = cmd.args[12];
+
+ for (i = 0; i < ARRAY_SIZE(si2157_fw); i++) {
+ if (si2157_fw[i].chip_id != chip_id)
+ continue;
+ if (si2157_fw[i].rom_id == rom_id)
+ break;
+ }
+
+ if (i >= ARRAY_SIZE(si2157_fw)) {
+ dev_err(&client->dev,
+ "unknown chip version Si21%d-%c%c%c ROM 0x%02x\n",
+ chip_id, cmd.args[1], cmd.args[3], cmd.args[4], rom_id);
+ return -EINVAL;
+ }
+
+ dev_info(&client->dev,
+ "found a 'Silicon Labs Si21%d-%c%c%c ROM 0x%02x'\n",
+ chip_id, cmd.args[1], cmd.args[3], cmd.args[4], rom_id);
+
+ ret = si2157_load_firmware(fe, si2157_fw[i].fw_name);
+
+ /* Try alternate name, if any */
+ if (ret == -ENOENT && si2157_fw[i].fw_alt_name)
+ ret = si2157_load_firmware(fe, si2157_fw[i].fw_alt_name);
+
+ if (ret == -ENOENT && si2157_fw[i].required)
+ dev_err(&client->dev, "Can't continue without a firmware.\n");
+ else if (ret < 0) {
+ dev_err(&client->dev, "error %d when loading firmware\n", ret);
+ }
+ return ret;
+}
+
static int si2157_init(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct i2c_client *client = fe->tuner_priv;
struct si2157_dev *dev = i2c_get_clientdata(client);
- bool warn_firmware_not_loaded = false;
- unsigned int chip_id, xtal_trim;
- bool fw_required = true;
+ unsigned int xtal_trim;
struct si2157_cmd cmd;
- const char *fw_name;
int ret;
dev_dbg(&client->dev, "\n");
@@ -176,72 +253,15 @@ static int si2157_init(struct dvb_frontend *fe)
goto err;
}
+ /* Try to load the firmware */
if (dev->dont_load_firmware) {
dev_info(&client->dev, "device is buggy, skipping firmware download\n");
- goto skip_fw_download;
+ } else {
+ ret = si2157_find_and_load_firmware(fe);
+ if (ret < 0)
+ goto err;
}
- /* query chip revision */
- memcpy(cmd.args, "\x02", 1);
- cmd.wlen = 1;
- cmd.rlen = 13;
- ret = si2157_cmd_execute(client, &cmd);
- if (ret)
- goto err;
-
- chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | cmd.args[3] << 8 |
- cmd.args[4] << 0;
-
- #define SI2177_A30 ('A' << 24 | 77 << 16 | '3' << 8 | '0' << 0)
- #define SI2158_A20 ('A' << 24 | 58 << 16 | '2' << 8 | '0' << 0)
- #define SI2148_A20 ('A' << 24 | 48 << 16 | '2' << 8 | '0' << 0)
- #define SI2157_A30 ('A' << 24 | 57 << 16 | '3' << 8 | '0' << 0)
- #define SI2147_A30 ('A' << 24 | 47 << 16 | '3' << 8 | '0' << 0)
- #define SI2146_A10 ('A' << 24 | 46 << 16 | '1' << 8 | '0' << 0)
- #define SI2141_A10 ('A' << 24 | 41 << 16 | '1' << 8 | '0' << 0)
-
- switch (chip_id) {
- case SI2158_A20:
- case SI2148_A20:
- fw_name = SI2158_A20_FIRMWARE;
- break;
- case SI2141_A10:
- fw_name = SI2141_A10_FIRMWARE;
- break;
- case SI2157_A30:
- fw_required = false;
- fallthrough;
- case SI2177_A30:
- fw_name = SI2157_A30_FIRMWARE;
- break;
- case SI2147_A30:
- case SI2146_A10:
- fw_name = NULL;
- break;
- default:
- dev_err(&client->dev, "unknown chip version Si21%d-%c%c%c\n",
- cmd.args[2], cmd.args[1],
- cmd.args[3], cmd.args[4]);
- ret = -EINVAL;
- goto err;
- }
-
- dev_info(&client->dev, "found a 'Silicon Labs Si21%d-%c%c%c'\n",
- cmd.args[2], cmd.args[1], cmd.args[3], cmd.args[4]);
-
- if (fw_name == NULL)
- goto skip_fw_download;
-
- ret = si2157_load_firmware(fe, fw_name);
- if (fw_required && ret == -ENOENT)
- warn_firmware_not_loaded = true;
- else if (ret < 0) {
- dev_err(&client->dev, "error %d when loading firmware file '%s'\n",
- ret, fw_name);
- goto err;
- }
-
-skip_fw_download:
/* reboot the tuner with new firmware? */
memcpy(cmd.args, "\x01\x01", 2);
cmd.wlen = 2;
@@ -258,11 +278,6 @@ static int si2157_init(struct dvb_frontend *fe)
if (ret)
goto err;
- if (warn_firmware_not_loaded) {
- dev_warn(&client->dev, "firmware file '%s' not found. Using firmware from eeprom.\n",
- fw_name);
- warn_firmware_not_loaded = false;
- }
dev_info(&client->dev, "firmware version: %c.%c.%d\n",
cmd.args[6], cmd.args[7], cmd.args[8]);
@@ -298,11 +313,6 @@ static int si2157_init(struct dvb_frontend *fe)
return 0;
err:
- if (warn_firmware_not_loaded)
- dev_err(&client->dev,
- "firmware file '%s' not found. Can't continue without a firmware.\n",
- fw_name);
-
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
@@ -968,3 +978,13 @@ MODULE_LICENSE("GPL");
MODULE_FIRMWARE(SI2158_A20_FIRMWARE);
MODULE_FIRMWARE(SI2141_A10_FIRMWARE);
MODULE_FIRMWARE(SI2157_A30_FIRMWARE);
+MODULE_FIRMWARE(SI2141_60_FIRMWARE);
+MODULE_FIRMWARE(SI2141_61_FIRMWARE);
+MODULE_FIRMWARE(SI2146_11_FIRMWARE);
+MODULE_FIRMWARE(SI2147_50_FIRMWARE);
+MODULE_FIRMWARE(SI2148_32_FIRMWARE);
+MODULE_FIRMWARE(SI2148_33_FIRMWARE);
+MODULE_FIRMWARE(SI2157_50_FIRMWARE);
+MODULE_FIRMWARE(SI2158_50_FIRMWARE);
+MODULE_FIRMWARE(SI2158_51_FIRMWARE);
+MODULE_FIRMWARE(SI2177_50_FIRMWARE);
diff --git a/drivers/media/tuners/si2157_priv.h b/drivers/media/tuners/si2157_priv.h
index ef4796098931..a99e04589b6a 100644
--- a/drivers/media/tuners/si2157_priv.h
+++ b/drivers/media/tuners/si2157_priv.h
@@ -54,7 +54,21 @@ struct si2157_cmd {
unsigned rlen;
};
+/* Old firmware namespace */
#define SI2158_A20_FIRMWARE "dvb-tuner-si2158-a20-01.fw"
#define SI2141_A10_FIRMWARE "dvb-tuner-si2141-a10-01.fw"
#define SI2157_A30_FIRMWARE "dvb-tuner-si2157-a30-01.fw"
+
+/* New firmware namespace */
+#define SI2141_60_FIRMWARE "dvb_driver_si2141_0_ab23.fw"
+#define SI2141_61_FIRMWARE "dvb_driver_si2141_1_1b12.fw"
+#define SI2146_11_FIRMWARE "dvb_driver_si2146_1_1b3.fw"
+#define SI2147_50_FIRMWARE "dvb_driver_si2147_3_1b3.fw"
+#define SI2148_32_FIRMWARE "dvb_driver_si2148_0_eb15.fw"
+#define SI2148_33_FIRMWARE "dvb_driver_si2148_2_1b11.fw"
+#define SI2157_50_FIRMWARE "dvb_driver_si2157_3_1b3.fw"
+#define SI2158_50_FIRMWARE "dvb_driver_si2178b_0_ab15.fw"
+#define SI2158_51_FIRMWARE "dvb_driver_si2158b_4_1b3.fw"
+#define SI2177_50_FIRMWARE "dvb_driver_si2177_3_1b3.fw"
+
#endif
--
2.33.1
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