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NFC: Add type A and type F parameters for pn533 target mode

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Without those settings several devices will not activate pn533 as a target.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2012-05-30 01:48:46 +02:00
parent d7f3345d3a
commit 51d9e803b9
1 changed files with 24 additions and 1 deletions
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25
drivers/nfc/pn533.c
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@ -1126,6 +1126,13 @@ static int pn533_init_target_frame(struct pn533_frame *frame,
{
struct pn533_cmd_init_target *cmd;
size_t cmd_len;
u8 felica_params[18] = {0x1, 0xfe, /* DEP */
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* random */
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0xff, 0xff}; /* System code */
u8 mifare_params[6] = {0x1, 0x1, /* SENS_RES */
0x0, 0x0, 0x0,
0x40}; /* SEL_RES for DEP */
cmd_len = sizeof(struct pn533_cmd_init_target) + gb_len + 1;
cmd = kzalloc(cmd_len, GFP_KERNEL);
@ -1136,17 +1143,33 @@ static int pn533_init_target_frame(struct pn533_frame *frame,
/* DEP support only */
cmd->mode |= PN533_INIT_TARGET_DEP;
get_random_bytes(cmd->nfcid3, 10);
/* Felica params */
memcpy(cmd->felica, felica_params, 18);
get_random_bytes(cmd->felica + 2, 6);
/* NFCID3 */
memset(cmd->nfcid3, 0, 10);
memcpy(cmd->nfcid3, cmd->felica, 8);
/* MIFARE params */
memcpy(cmd->mifare, mifare_params, 6);
/* General bytes */
cmd->gb_len = gb_len;
memcpy(cmd->gb, gb, gb_len);
/* Len Tk */
cmd->gb[gb_len] = 0;
memcpy(PN533_FRAME_CMD_PARAMS_PTR(frame), cmd, cmd_len);
frame->datalen += cmd_len;
pn533_tx_frame_finish(frame);
kfree(cmd);
return 0;
}