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path: root/drivers/nfc/pn544/pn544.c
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Diffstat (limited to 'drivers/nfc/pn544/pn544.c')
-rw-r--r--drivers/nfc/pn544/pn544.c181
1 files changed, 141 insertions, 40 deletions
diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 078e62feba1..9c8051d20ce 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -13,11 +13,11 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/module.h>
@@ -41,6 +41,7 @@ enum pn544_state {
/* Proprietary commands */
#define PN544_WRITE 0x3f
+#define PN544_TEST_SWP 0x21
/* Proprietary gates, events, commands and registers */
@@ -81,14 +82,17 @@ enum pn544_state {
#define PN544_PL_NFCT_DEACTIVATED 0x09
#define PN544_SWP_MGMT_GATE 0xA0
+#define PN544_SWP_DEFAULT_MODE 0x01
#define PN544_NFC_WI_MGMT_GATE 0xA1
+#define PN544_NFC_ESE_DEFAULT_MODE 0x01
#define PN544_HCI_EVT_SND_DATA 0x01
#define PN544_HCI_EVT_ACTIVATED 0x02
#define PN544_HCI_EVT_DEACTIVATED 0x03
#define PN544_HCI_EVT_RCV_DATA 0x04
#define PN544_HCI_EVT_CONTINUE_MI 0x05
+#define PN544_HCI_EVT_SWITCH_MODE 0x03
#define PN544_HCI_CMD_ATTREQUEST 0x12
#define PN544_HCI_CMD_CONTINUE_ACTIVATION 0x13
@@ -187,53 +191,46 @@ static int pn544_hci_ready(struct nfc_hci_dev *hdev)
{{0x9e, 0xb4}, 0x00},
- {{0x9e, 0xd9}, 0xff},
- {{0x9e, 0xda}, 0xff},
- {{0x9e, 0xdb}, 0x23},
- {{0x9e, 0xdc}, 0x21},
- {{0x9e, 0xdd}, 0x22},
- {{0x9e, 0xde}, 0x24},
-
{{0x9c, 0x01}, 0x08},
{{0x9e, 0xaa}, 0x01},
- {{0x9b, 0xd1}, 0x0d},
- {{0x9b, 0xd2}, 0x24},
- {{0x9b, 0xd3}, 0x0a},
- {{0x9b, 0xd4}, 0x22},
- {{0x9b, 0xd5}, 0x08},
- {{0x9b, 0xd6}, 0x1e},
- {{0x9b, 0xdd}, 0x1c},
+ {{0x9b, 0xd1}, 0x17},
+ {{0x9b, 0xd2}, 0x58},
+ {{0x9b, 0xd3}, 0x10},
+ {{0x9b, 0xd4}, 0x47},
+ {{0x9b, 0xd5}, 0x0c},
+ {{0x9b, 0xd6}, 0x37},
+ {{0x9b, 0xdd}, 0x33},
- {{0x9b, 0x84}, 0x13},
- {{0x99, 0x81}, 0x7f},
- {{0x99, 0x31}, 0x70},
+ {{0x9b, 0x84}, 0x00},
+ {{0x99, 0x81}, 0x79},
+ {{0x99, 0x31}, 0x79},
{{0x98, 0x00}, 0x3f},
- {{0x9f, 0x09}, 0x00},
+ {{0x9f, 0x09}, 0x02},
{{0x9f, 0x0a}, 0x05},
{{0x9e, 0xd1}, 0xa1},
- {{0x99, 0x23}, 0x00},
-
- {{0x9e, 0x74}, 0x80},
+ {{0x99, 0x23}, 0x01},
+ {{0x9e, 0x74}, 0x00},
+ {{0x9e, 0x90}, 0x00},
{{0x9f, 0x28}, 0x10},
- {{0x9f, 0x35}, 0x14},
+ {{0x9f, 0x35}, 0x04},
- {{0x9f, 0x36}, 0x60},
+ {{0x9f, 0x36}, 0x11},
{{0x9c, 0x31}, 0x00},
- {{0x9c, 0x32}, 0xc8},
+ {{0x9c, 0x32}, 0x00},
- {{0x9c, 0x19}, 0x40},
+ {{0x9c, 0x19}, 0x0a},
- {{0x9c, 0x1a}, 0x40},
+ {{0x9c, 0x1a}, 0x0a},
{{0x9c, 0x0c}, 0x00},
@@ -243,13 +240,13 @@ static int pn544_hci_ready(struct nfc_hci_dev *hdev)
{{0x9c, 0x13}, 0x00},
- {{0x98, 0xa2}, 0x0e},
+ {{0x98, 0xa2}, 0x09},
- {{0x98, 0x93}, 0x40},
+ {{0x98, 0x93}, 0x00},
- {{0x98, 0x7d}, 0x02},
+ {{0x98, 0x7d}, 0x08},
{{0x98, 0x7e}, 0x00},
- {{0x9f, 0xc8}, 0x01},
+ {{0x9f, 0xc8}, 0x00},
};
struct hw_config *p = hw_config;
int count = ARRAY_SIZE(hw_config);
@@ -394,7 +391,7 @@ static int pn544_hci_start_poll(struct nfc_hci_dev *hdev,
if ((im_protocols | tm_protocols) & NFC_PROTO_NFC_DEP_MASK) {
hdev->gb = nfc_get_local_general_bytes(hdev->ndev,
&hdev->gb_len);
- pr_debug("generate local bytes %p", hdev->gb);
+ pr_debug("generate local bytes %p\n", hdev->gb);
if (hdev->gb == NULL || hdev->gb_len == 0) {
im_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
tm_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
@@ -696,7 +693,7 @@ static int pn544_hci_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb)
static int pn544_hci_check_presence(struct nfc_hci_dev *hdev,
struct nfc_target *target)
{
- pr_debug("supported protocol %d", target->supported_protocols);
+ pr_debug("supported protocol %d\b", target->supported_protocols);
if (target->supported_protocols & (NFC_PROTO_ISO14443_MASK |
NFC_PROTO_ISO14443_B_MASK)) {
return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
@@ -733,7 +730,7 @@ static int pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate, u8 event,
struct sk_buff *rgb_skb = NULL;
int r;
- pr_debug("hci event %d", event);
+ pr_debug("hci event %d\n", event);
switch (event) {
case PN544_HCI_EVT_ACTIVATED:
if (gate == PN544_RF_READER_NFCIP1_INITIATOR_GATE) {
@@ -764,7 +761,7 @@ static int pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate, u8 event,
}
if (skb->data[0] != 0) {
- pr_debug("data0 %d", skb->data[0]);
+ pr_debug("data0 %d\n", skb->data[0]);
r = -EPROTO;
goto exit;
}
@@ -789,7 +786,109 @@ static int pn544_hci_fw_download(struct nfc_hci_dev *hdev,
if (info->fw_download == NULL)
return -ENOTSUPP;
- return info->fw_download(info->phy_id, firmware_name);
+ return info->fw_download(info->phy_id, firmware_name, hdev->sw_romlib);
+}
+
+static int pn544_hci_discover_se(struct nfc_hci_dev *hdev)
+{
+ u32 se_idx = 0;
+ u8 ese_mode = 0x01; /* Default mode */
+ struct sk_buff *res_skb;
+ int r;
+
+ r = nfc_hci_send_cmd(hdev, PN544_SYS_MGMT_GATE, PN544_TEST_SWP,
+ NULL, 0, &res_skb);
+
+ if (r == 0) {
+ if (res_skb->len == 2 && res_skb->data[0] == 0x00)
+ nfc_add_se(hdev->ndev, se_idx++, NFC_SE_UICC);
+
+ kfree_skb(res_skb);
+ }
+
+ r = nfc_hci_send_event(hdev, PN544_NFC_WI_MGMT_GATE,
+ PN544_HCI_EVT_SWITCH_MODE,
+ &ese_mode, 1);
+ if (r == 0)
+ nfc_add_se(hdev->ndev, se_idx++, NFC_SE_EMBEDDED);
+
+ return !se_idx;
+}
+
+#define PN544_SE_MODE_OFF 0x00
+#define PN544_SE_MODE_ON 0x01
+static int pn544_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx)
+{
+ struct nfc_se *se;
+ u8 enable = PN544_SE_MODE_ON;
+ static struct uicc_gatelist {
+ u8 head;
+ u8 adr[2];
+ u8 value;
+ } uicc_gatelist[] = {
+ {0x00, {0x9e, 0xd9}, 0x23},
+ {0x00, {0x9e, 0xda}, 0x21},
+ {0x00, {0x9e, 0xdb}, 0x22},
+ {0x00, {0x9e, 0xdc}, 0x24},
+ };
+ struct uicc_gatelist *p = uicc_gatelist;
+ int count = ARRAY_SIZE(uicc_gatelist);
+ struct sk_buff *res_skb;
+ int r;
+
+ se = nfc_find_se(hdev->ndev, se_idx);
+
+ switch (se->type) {
+ case NFC_SE_UICC:
+ while (count--) {
+ r = nfc_hci_send_cmd(hdev, PN544_SYS_MGMT_GATE,
+ PN544_WRITE, (u8 *)p, 4, &res_skb);
+ if (r < 0)
+ return r;
+
+ if (res_skb->len != 1) {
+ kfree_skb(res_skb);
+ return -EPROTO;
+ }
+
+ if (res_skb->data[0] != p->value) {
+ kfree_skb(res_skb);
+ return -EIO;
+ }
+
+ kfree_skb(res_skb);
+
+ p++;
+ }
+
+ return nfc_hci_set_param(hdev, PN544_SWP_MGMT_GATE,
+ PN544_SWP_DEFAULT_MODE, &enable, 1);
+ case NFC_SE_EMBEDDED:
+ return nfc_hci_set_param(hdev, PN544_NFC_WI_MGMT_GATE,
+ PN544_NFC_ESE_DEFAULT_MODE, &enable, 1);
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static int pn544_hci_disable_se(struct nfc_hci_dev *hdev, u32 se_idx)
+{
+ struct nfc_se *se;
+ u8 disable = PN544_SE_MODE_OFF;
+
+ se = nfc_find_se(hdev->ndev, se_idx);
+
+ switch (se->type) {
+ case NFC_SE_UICC:
+ return nfc_hci_set_param(hdev, PN544_SWP_MGMT_GATE,
+ PN544_SWP_DEFAULT_MODE, &disable, 1);
+ case NFC_SE_EMBEDDED:
+ return nfc_hci_set_param(hdev, PN544_NFC_WI_MGMT_GATE,
+ PN544_NFC_ESE_DEFAULT_MODE, &disable, 1);
+ default:
+ return -EINVAL;
+ }
}
static struct nfc_hci_ops pn544_hci_ops = {
@@ -807,6 +906,9 @@ static struct nfc_hci_ops pn544_hci_ops = {
.check_presence = pn544_hci_check_presence,
.event_received = pn544_hci_event_received,
.fw_download = pn544_hci_fw_download,
+ .discover_se = pn544_hci_discover_se,
+ .enable_se = pn544_hci_enable_se,
+ .disable_se = pn544_hci_disable_se,
};
int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
@@ -820,7 +922,6 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
info = kzalloc(sizeof(struct pn544_hci_info), GFP_KERNEL);
if (!info) {
- pr_err("Cannot allocate memory for pn544_hci_info.\n");
r = -ENOMEM;
goto err_info_alloc;
}
@@ -853,7 +954,7 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
phy_headroom + PN544_CMDS_HEADROOM,
phy_tailroom, phy_payload);
if (!info->hdev) {
- pr_err("Cannot allocate nfc hdev.\n");
+ pr_err("Cannot allocate nfc hdev\n");
r = -ENOMEM;
goto err_alloc_hdev;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-03 18:09:25 +0000