Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb

[pandora-kernel.git] / drivers / media / common / tuners / xc5000.c

diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c
index ceae6db..5f99de0 100644 (file)
--- a/drivers/media/common/tuners/xc5000.c
+++ b/drivers/media/common/tuners/xc5000.c
@@ -36,6 +36,10 @@ static int debug;
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
 
+static int xc5000_load_fw_on_attach;
+module_param_named(init_fw, xc5000_load_fw_on_attach, int, 0644);
+MODULE_PARM_DESC(init_fw, "Load firmware during driver initialization.");
+
 #define dprintk(level,fmt, arg...) if (debug >= level) \
        printk(KERN_INFO "%s: " fmt, "xc5000", ## arg)
 
@@ -177,6 +181,7 @@ static XC_TV_STANDARD XC5000_Standard[MAX_TV_STANDARD] = {
        {"FM Radio-INPUT1",   0x0208, 0x9002}
 };
 
+static int  xc5000_is_firmware_loaded(struct dvb_frontend *fe);
 static int  xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len);
 static int  xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len);
 static void xc5000_TunerReset(struct dvb_frontend *fe);
@@ -277,7 +282,7 @@ static int xc_read_reg(struct xc5000_priv *priv, u16 regAddr, u16 *i2cData)
        return result;
 }
 
-static int xc_load_i2c_sequence(struct dvb_frontend *fe, u8 i2c_sequence[])
+static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)
 {
        struct xc5000_priv *priv = fe->tuner_priv;
 
@@ -352,7 +357,7 @@ static int xc_SetTVStandard(struct xc5000_priv *priv,
 
 static int xc_shutdown(struct xc5000_priv *priv)
 {
-       return 0;
+       return XC_RESULT_SUCCESS;
        /* Fixme: cannot bring tuner back alive once shutdown
         *        without reloading the driver modules.
         *    return xc_write_reg(priv, XREG_POWER_DOWN, 0);
@@ -685,6 +690,25 @@ static int xc5000_set_params(struct dvb_frontend *fe,
        return 0;
 }
 
+static int xc5000_is_firmware_loaded(struct dvb_frontend *fe)
+{
+       struct xc5000_priv *priv = fe->tuner_priv;
+       int ret;
+       u16 id;
+
+       ret = xc5000_readreg(priv, XREG_PRODUCT_ID, &id);
+       if (ret == XC_RESULT_SUCCESS) {
+               if (id == XC_PRODUCT_ID_FW_NOT_LOADED)
+                       ret = XC_RESULT_RESET_FAILURE;
+               else
+                       ret = XC_RESULT_SUCCESS;
+       }
+
+       dprintk(1, "%s() returns %s id = 0x%x\n", __func__,
+               ret == XC_RESULT_SUCCESS ? "True" : "False", id);
+       return ret;
+}
+
 static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe);
 
 static int xc5000_set_analog_params(struct dvb_frontend *fe,
@@ -693,7 +717,7 @@ static int xc5000_set_analog_params(struct dvb_frontend *fe,
        struct xc5000_priv *priv = fe->tuner_priv;
        int ret;
 
-       if(priv->fwloaded == 0)
+       if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS)
                xc_load_fw_and_init_tuner(fe);
 
        dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",
@@ -808,11 +832,10 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
        struct xc5000_priv *priv = fe->tuner_priv;
        int ret = 0;
 
-       if (priv->fwloaded == 0) {
+       if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) {
                ret = xc5000_fwupload(fe);
                if (ret != XC_RESULT_SUCCESS)
                        return ret;
-               priv->fwloaded = 1;
        }
 
        /* Start the tuner self-calibration process */
@@ -852,7 +875,6 @@ static int xc5000_sleep(struct dvb_frontend *fe)
                return -EREMOTEIO;
        }
        else {
-               /* priv->fwloaded = 0; */
                return XC_RESULT_SUCCESS;
        }
 }
@@ -933,7 +955,6 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
                        cfg->i2c_address);
                printk(KERN_INFO
                        "xc5000: Firmware has been loaded previously\n");
-               priv->fwloaded = 1;
                break;
        case XC_PRODUCT_ID_FW_NOT_LOADED:
                printk(KERN_INFO
@@ -941,7 +962,6 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
                        cfg->i2c_address);
                printk(KERN_INFO
                        "xc5000: Firmware has not been loaded previously\n");
-               priv->fwloaded = 0;
                break;
        default:
                printk(KERN_ERR
@@ -956,6 +976,9 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
 
        fe->tuner_priv = priv;
 
+       if (xc5000_load_fw_on_attach)
+               xc5000_init(fe);
+
        return fe;
 }
 EXPORT_SYMBOL(xc5000_attach);