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NFC: nfcmrvl: Add setup handler

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Marvell nfc device provides support for external coexistance
control. It allows Device Host to inhibit the NFCC from polling
when required by asserting a GPIO pin. A second pin allows the
DH to have feedback on the current NFCC state.

The required configuration for this feature is done in setup
handler.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Amitkumar Karwar 2014-01-06 12:58:20 -08:00 committed by Samuel Ortiz
parent f26e30cc6b
commit 15203b4c79
2 changed files with 21 additions and 0 deletions
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15
drivers/nfc/nfcmrvl/main.c
View file

@ -66,10 +66,25 @@ static int nfcmrvl_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
return priv->if_ops->nci_send(priv, skb);
}
static int nfcmrvl_nci_setup(struct nci_dev *ndev)
{
__u8 val;
val = NFCMRVL_GPIO_PIN_NFC_NOT_ALLOWED;
nci_set_config(ndev, NFCMRVL_NOT_ALLOWED_ID, 1, &val);
val = NFCMRVL_GPIO_PIN_NFC_ACTIVE;
nci_set_config(ndev, NFCMRVL_ACTIVE_ID, 1, &val);
val = NFCMRVL_EXT_COEX_ENABLE;
nci_set_config(ndev, NFCMRVL_EXT_COEX_ID, 1, &val);
return 0;
}
static struct nci_ops nfcmrvl_nci_ops = {
.open = nfcmrvl_nci_open,
.close = nfcmrvl_nci_close,
.send = nfcmrvl_nci_send,
.setup = nfcmrvl_nci_setup,
};
struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,

6
drivers/nfc/nfcmrvl/nfcmrvl.h
View file

@ -19,6 +19,12 @@
/* Define private flags: */
#define NFCMRVL_NCI_RUNNING 1
#define NFCMRVL_EXT_COEX_ID 0xE0
#define NFCMRVL_NOT_ALLOWED_ID 0xE1
#define NFCMRVL_ACTIVE_ID 0xE2
#define NFCMRVL_EXT_COEX_ENABLE 1
#define NFCMRVL_GPIO_PIN_NFC_NOT_ALLOWED 0xA
#define NFCMRVL_GPIO_PIN_NFC_ACTIVE 0xB
#define NFCMRVL_NCI_MAX_EVENT_SIZE 260
struct nfcmrvl_private {