#define HERMES_AUX_ENABLE 0x8000 /* Enable auxiliary port access */
#define HERMES_AUX_DISABLE 0x4000 /* Disable to auxiliary port access */
#define HERMES_AUX_ENABLED 0xC000 /* Auxiliary port is open */
+#define HERMES_AUX_DISABLED 0x0000 /* Auxiliary port is closed */
#define HERMES_AUX_PW0 0xFE01
#define HERMES_AUX_PW1 0xDC23
#define HERMES_AUX_PW2 0xBA45
-/* End markers */
+/* End markers used in dblocks */
#define PDI_END 0x00000000 /* End of PDA */
#define BLOCK_END 0xFFFFFFFF /* Last image block */
+#define TEXT_END 0x1A /* End of text header */
+
+/*
+ * PDA == Production Data Area
+ *
+ * In principle, the max. size of the PDA is is 4096 words. Currently,
+ * however, only about 500 bytes of this area are used.
+ *
+ * Some USB implementations can't handle sizes in excess of 1016. Note
+ * that PDA is not actually used in those USB environments, but may be
+ * retrieved by common code.
+ */
+#define MAX_PDA_SIZE 1000
+
+/* Limit the amout we try to download in a single shot.
+ * Size is in bytes.
+ */
+#define MAX_DL_SIZE 1024
+#define LIMIT_PROGRAM_SIZE 0
/*
* The following structures have little-endian fields denoted by
char data[0]; /* plug data */
} __attribute__ ((packed));
-/* Functions for access to little-endian data */
+/*** FW data block access functions ***/
+
static inline u32
dblock_addr(const struct dblock *blk)
{
return le16_to_cpu(blk->len);
}
+/*** PDR Access functions ***/
+
static inline u32
pdr_id(const struct pdr *pdr)
{
return le32_to_cpu(pdr->len);
}
+/*** PDI Access functions ***/
+
static inline u32
pdi_id(const struct pdi *pdi)
{
return 2 * (le16_to_cpu(pdi->len) - 1);
}
-/* Set address of the auxiliary port */
+/*** Hermes AUX control ***/
+
static inline void
-spectrum_aux_setaddr(hermes_t *hw, u32 addr)
+hermes_aux_setaddr(hermes_t *hw, u32 addr)
{
hermes_write_reg(hw, HERMES_AUXPAGE, (u16) (addr >> 7));
hermes_write_reg(hw, HERMES_AUXOFFSET, (u16) (addr & 0x7F));
}
-/* Open access to the auxiliary port */
-static int
-spectrum_aux_open(hermes_t *hw)
+static inline int
+hermes_aux_control(hermes_t *hw, int enabled)
{
+ int desired_state = enabled ? HERMES_AUX_ENABLED : HERMES_AUX_DISABLED;
+ int action = enabled ? HERMES_AUX_ENABLE : HERMES_AUX_DISABLE;
int i;
/* Already open? */
- if (hermes_read_reg(hw, HERMES_CONTROL) == HERMES_AUX_ENABLED)
+ if (hermes_read_reg(hw, HERMES_CONTROL) == desired_state)
return 0;
hermes_write_reg(hw, HERMES_PARAM0, HERMES_AUX_PW0);
hermes_write_reg(hw, HERMES_PARAM1, HERMES_AUX_PW1);
hermes_write_reg(hw, HERMES_PARAM2, HERMES_AUX_PW2);
- hermes_write_reg(hw, HERMES_CONTROL, HERMES_AUX_ENABLE);
+ hermes_write_reg(hw, HERMES_CONTROL, action);
for (i = 0; i < 20; i++) {
udelay(10);
if (hermes_read_reg(hw, HERMES_CONTROL) ==
- HERMES_AUX_ENABLED)
+ desired_state)
return 0;
}
return -EBUSY;
}
+/*** Plug Data Functions ***/
+
/*
* Scan PDR for the record with the specified RECORD_ID.
* If it's not found, return NULL.
*/
static struct pdr *
-spectrum_find_pdr(struct pdr *first_pdr, u32 record_id)
+hermes_find_pdr(struct pdr *first_pdr, u32 record_id)
{
struct pdr *pdr = first_pdr;
+ void *end = (void *)first_pdr + MAX_PDA_SIZE;
- while (pdr_id(pdr) != PDI_END) {
+ while (((void *)pdr < end) &&
+ (pdr_id(pdr) != PDI_END)) {
/*
* PDR area is currently not terminated by PDI_END.
* It's followed by CRC records, which have the type
/* Process one Plug Data Item - find corresponding PDR and plug it */
static int
-spectrum_plug_pdi(hermes_t *hw, struct pdr *first_pdr, struct pdi *pdi)
+hermes_plug_pdi(hermes_t *hw, struct pdr *first_pdr, const struct pdi *pdi)
{
struct pdr *pdr;
- /* Find the PDI corresponding to this PDR */
- pdr = spectrum_find_pdr(first_pdr, pdi_id(pdi));
+ /* Find the PDR corresponding to this PDI */
+ pdr = hermes_find_pdr(first_pdr, pdi_id(pdi));
/* No match is found, safe to ignore */
if (!pdr)
return -EINVAL;
/* do the actual plugging */
- spectrum_aux_setaddr(hw, pdr_addr(pdr));
+ hermes_aux_setaddr(hw, pdr_addr(pdr));
hermes_write_bytes(hw, HERMES_AUXDATA, pdi->data, pdi_len(pdi));
return 0;
}
/* Read PDA from the adapter */
-int
-spectrum_read_pda(hermes_t *hw, __le16 *pda, int pda_len)
+int hermes_read_pda(hermes_t *hw,
+ __le16 *pda,
+ u32 pda_addr,
+ u16 pda_len,
+ int use_eeprom) /* can we get this into hw? */
{
int ret;
- int pda_size;
+ u16 pda_size;
+ u16 data_len = pda_len;
+ __le16 *data = pda;
- /* Issue command to read EEPROM */
- ret = hermes_docmd_wait(hw, HERMES_CMD_READMIF, 0, NULL);
- if (ret)
- return ret;
+ if (use_eeprom) {
+ /* PDA of spectrum symbol is in eeprom */
+
+ /* Issue command to read EEPROM */
+ ret = hermes_docmd_wait(hw, HERMES_CMD_READMIF, 0, NULL);
+ if (ret)
+ return ret;
+ }
/* Open auxiliary port */
- ret = spectrum_aux_open(hw);
+ ret = hermes_aux_control(hw, 1);
+ printk(KERN_DEBUG PFX "AUX enable returned %d\n", ret);
if (ret)
return ret;
/* read PDA from EEPROM */
- spectrum_aux_setaddr(hw, PDA_ADDR);
- hermes_read_words(hw, HERMES_AUXDATA, pda, pda_len / 2);
+ hermes_aux_setaddr(hw, pda_addr);
+ hermes_read_words(hw, HERMES_AUXDATA, data, data_len / 2);
+
+ /* Close aux port */
+ ret = hermes_aux_control(hw, 0);
+ printk(KERN_DEBUG PFX "AUX disable returned %d\n", ret);
/* Check PDA length */
pda_size = le16_to_cpu(pda[0]);
+ printk(KERN_DEBUG PFX "Actual PDA length %d, Max allowed %d\n",
+ pda_size, pda_len);
if (pda_size > pda_len)
return -EINVAL;
return 0;
}
-EXPORT_SYMBOL(spectrum_read_pda);
+EXPORT_SYMBOL(hermes_read_pda);
-/* Parse PDA and write the records into the adapter */
-int
-spectrum_apply_pda(hermes_t *hw, const struct dblock *first_block,
- __le16 *pda)
+/* Parse PDA and write the records into the adapter
+ *
+ * Attempt to write every records that is in the specified pda
+ * which also has a valid production data record for the firmware.
+ */
+int hermes_apply_pda(hermes_t *hw,
+ const char *first_pdr,
+ const __le16 *pda)
{
int ret;
- struct pdi *pdi;
- struct pdr *first_pdr;
- const struct dblock *blk = first_block;
-
- /* Skip all blocks to locate Plug Data References */
- while (dblock_addr(blk) != BLOCK_END)
- blk = (struct dblock *) &blk->data[dblock_len(blk)];
+ const struct pdi *pdi;
+ struct pdr *pdr;
- first_pdr = (struct pdr *) blk;
+ pdr = (struct pdr *) first_pdr;
/* Go through every PDI and plug them into the adapter */
- pdi = (struct pdi *) (pda + 2);
+ pdi = (const struct pdi *) (pda + 2);
while (pdi_id(pdi) != PDI_END) {
- ret = spectrum_plug_pdi(hw, first_pdr, pdi);
+ ret = hermes_plug_pdi(hw, pdr, pdi);
if (ret)
return ret;
/* Increment to the next PDI */
- pdi = (struct pdi *) &pdi->data[pdi_len(pdi)];
+ pdi = (const struct pdi *) &pdi->data[pdi_len(pdi)];
}
return 0;
}
-EXPORT_SYMBOL(spectrum_apply_pda);
+EXPORT_SYMBOL(hermes_apply_pda);
+
+/* Identify the total number of bytes in all blocks
+ * including the header data.
+ */
+size_t
+hermes_blocks_length(const char *first_block)
+{
+ const struct dblock *blk = (const struct dblock *) first_block;
+ int total_len = 0;
+ int len;
+
+ /* Skip all blocks to locate Plug Data References
+ * (Spectrum CS) */
+ while (dblock_addr(blk) != BLOCK_END) {
+ len = dblock_len(blk);
+ total_len += sizeof(*blk) + len;
+ blk = (struct dblock *) &blk->data[len];
+ }
+
+ return total_len;
+}
+EXPORT_SYMBOL(hermes_blocks_length);
+
+/*** Hermes programming ***/
-/* Load firmware blocks into the adapter */
-int
-spectrum_load_blocks(hermes_t *hw, const struct dblock *first_block)
+/* Program the data blocks */
+int hermes_program(hermes_t *hw, const char *first_block, const char *end)
{
const struct dblock *blk;
u32 blkaddr;
u32 blklen;
+#if LIMIT_PROGRAM_SIZE
+ u32 addr;
+ u32 len;
+#endif
+
+ blk = (const struct dblock *) first_block;
+
+ if ((const char *) blk > (end - sizeof(*blk)))
+ return -EIO;
- blk = first_block;
blkaddr = dblock_addr(blk);
blklen = dblock_len(blk);
- while (dblock_addr(blk) != BLOCK_END) {
- spectrum_aux_setaddr(hw, blkaddr);
+ while ((blkaddr != BLOCK_END) &&
+ (((const char *) blk + blklen) <= end)) {
+ printk(KERN_DEBUG PFX
+ "Programming block of length %d to address 0x%08x\n",
+ blklen, blkaddr);
+
+#if !LIMIT_PROGRAM_SIZE
+ /* wl_lkm driver splits this into writes of 2000 bytes */
+ hermes_aux_setaddr(hw, blkaddr);
hermes_write_bytes(hw, HERMES_AUXDATA, blk->data,
blklen);
+#else
+ len = (blklen < MAX_DL_SIZE) ? blklen : MAX_DL_SIZE;
+ addr = blkaddr;
+
+ while (addr < (blkaddr + blklen)) {
+ printk(KERN_DEBUG PFX
+ "Programming subblock of length %d "
+ "to address 0x%08x. Data @ %p\n",
+ len, addr, &blk->data[addr - blkaddr]);
+
+ hermes_aux_setaddr(hw, addr);
+ hermes_write_bytes(hw, HERMES_AUXDATA,
+ &blk->data[addr - blkaddr],
+ len);
+
+ addr += len;
+ len = ((blkaddr + blklen - addr) < MAX_DL_SIZE) ?
+ (blkaddr + blklen - addr) : MAX_DL_SIZE;
+ }
+#endif
+ blk = (const struct dblock *) &blk->data[blklen];
+
+ if ((const char *) blk > (end - sizeof(*blk)))
+ return -EIO;
- blk = (struct dblock *) &blk->data[blklen];
blkaddr = dblock_addr(blk);
blklen = dblock_len(blk);
}
return 0;
}
-EXPORT_SYMBOL(spectrum_load_blocks);
+EXPORT_SYMBOL(hermes_program);
static int __init init_hermes_dld(void)
{
*/
static int
spectrum_dl_image(hermes_t *hw, struct pcmcia_device *link,
- const unsigned char *image, int secondary)
+ const unsigned char *image, const unsigned char *end,
+ int secondary)
{
int ret;
const unsigned char *ptr;
- const struct dblock *first_block;
+ const unsigned char *first_block;
/* Plug Data Area (PDA) */
__le16 pda[PDA_WORDS];
/* Binary block begins after the 0x1A marker */
ptr = image;
while (*ptr++ != TEXT_END);
- first_block = (const struct dblock *) ptr;
+ first_block = ptr;
- /* Read the PDA */
+ /* Read the PDA from EEPROM */
if (secondary) {
- ret = spectrum_read_pda(hw, pda, sizeof(pda));
+ ret = hermes_read_pda(hw, pda, PDA_ADDR, sizeof(pda), 1);
if (ret)
return ret;
}
return ret;
/* Program the adapter with new firmware */
- ret = spectrum_load_blocks(hw, first_block);
+ ret = hermes_program(hw, first_block, end);
if (ret)
return ret;
/* Write the PDA to the adapter */
if (secondary) {
- ret = spectrum_apply_pda(hw, first_block, pda);
+ size_t len = hermes_blocks_length(first_block);
+ ptr = first_block + len;
+ ret = hermes_apply_pda(hw, ptr, pda);
if (ret)
return ret;
}
}
/* Load primary firmware */
- ret = spectrum_dl_image(hw, link, fw_entry->data, 0);
+ ret = spectrum_dl_image(hw, link, fw_entry->data,
+ fw_entry->data + fw_entry->size, 0);
release_firmware(fw_entry);
if (ret) {
printk(KERN_ERR PFX "Primary firmware download failed\n");
}
/* Load secondary firmware */
- ret = spectrum_dl_image(hw, link, fw_entry->data, 1);
+ ret = spectrum_dl_image(hw, link, fw_entry->data,
+ fw_entry->data + fw_entry->size, 1);
release_firmware(fw_entry);
if (ret) {
printk(KERN_ERR PFX "Secondary firmware download failed\n");
projects / openwrt / staging / blogic.git / commitdiff