diff options
author | David Woodhouse <dwmw2@infradead.org> | 2008-05-30 14:35:47 (GMT) |
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committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-07-10 13:49:14 (GMT) |
commit | b8e24bfabb03527d1c876fcaf24cccb05e1cbc65 (patch) | |
tree | ed02482cfc823d96691ad78afb034b819f64b295 /drivers/usb/misc/emi62.c | |
parent | ae93a55bf948753de0bb8e43fa9c027f786abb05 (diff) | |
download | linux-b8e24bfabb03527d1c876fcaf24cccb05e1cbc65.tar.xz |
emi62: use request_firmware()
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'drivers/usb/misc/emi62.c')
-rw-r--r-- | drivers/usb/misc/emi62.c | 130 |
1 files changed, 73 insertions, 57 deletions
diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c index 1a2b79a..20886c2 100644 --- a/drivers/usb/misc/emi62.c +++ b/drivers/usb/misc/emi62.c @@ -16,15 +16,8 @@ #include <linux/module.h> #include <linux/usb.h> #include <linux/delay.h> - -#define MAX_INTEL_HEX_RECORD_LENGTH 16 -typedef struct _INTEL_HEX_RECORD -{ - __u32 length; - __u32 address; - __u32 type; - __u8 data[MAX_INTEL_HEX_RECORD_LENGTH]; -} INTEL_HEX_RECORD, *PINTEL_HEX_RECORD; +#include <linux/firmware.h> +#include <linux/ihex.h> /* include firmware (variables)*/ @@ -33,9 +26,9 @@ typedef struct _INTEL_HEX_RECORD //#undef SPDIF /* if you want MIDI uncomment this line */ #ifdef SPDIF -# include "emi62_fw_s.h" /* spdif fw */ +#define FIRMWARE_FW "emi62/spdif.fw" #else -# include "emi62_fw_m.h" /* midi fw */ +#define FIRMWARE_FW "emi62/midi.fw" #endif #define EMI62_VENDOR_ID 0x086a /* Emagic Soft-und Hardware GmBH */ @@ -48,7 +41,9 @@ typedef struct _INTEL_HEX_RECORD #define CPUCS_REG 0x7F92 /* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */ #define INTERNAL_RAM(address) (address <= MAX_INTERNAL_ADDRESS) -static int emi62_writememory( struct usb_device *dev, int address, unsigned char *data, int length, __u8 bRequest); +static int emi62_writememory(struct usb_device *dev, int address, + const unsigned char *data, int length, + __u8 bRequest); static int emi62_set_reset(struct usb_device *dev, unsigned char reset_bit); static int emi62_load_firmware (struct usb_device *dev); static int emi62_probe(struct usb_interface *intf, const struct usb_device_id *id); @@ -58,7 +53,9 @@ static void __exit emi62_exit (void); /* thanks to drivers/usb/serial/keyspan_pda.c code */ -static int emi62_writememory (struct usb_device *dev, int address, unsigned char *data, int length, __u8 request) +static int emi62_writememory(struct usb_device *dev, int address, + const unsigned char *data, int length, + __u8 request) { int result; unsigned char *buffer = kmemdup(data, length, GFP_KERNEL); @@ -91,9 +88,12 @@ static int emi62_set_reset (struct usb_device *dev, unsigned char reset_bit) static int emi62_load_firmware (struct usb_device *dev) { + const struct firmware *loader_fw = NULL; + const struct firmware *bitstream_fw = NULL; + const struct firmware *firmware_fw = NULL; + const struct ihex_binrec *rec; int err; int i; - int pos = 0; /* Position in hex record */ __u32 addr; /* Address to write */ __u8 *buf; @@ -105,6 +105,22 @@ static int emi62_load_firmware (struct usb_device *dev) goto wraperr; } + err = request_ihex_firmware(&loader_fw, "emi62/loader.fw", &dev->dev); + if (err) + goto nofw; + + err = request_ihex_firmware(&bitstream_fw, "emi62/bitstream.fw", + &dev->dev); + if (err) + goto nofw; + + err = request_ihex_firmware(&firmware_fw, FIRMWARE_FW, &dev->dev); + if (err) { + nofw: + err( "%s - request_firmware() failed", __func__); + goto wraperr; + } + /* Assert reset (stop the CPU in the EMI) */ err = emi62_set_reset(dev,1); if (err < 0) { @@ -112,13 +128,18 @@ static int emi62_load_firmware (struct usb_device *dev) goto wraperr; } + rec = (const struct ihex_binrec *)loader_fw->data; + /* 1. We need to put the loader for the FPGA into the EZ-USB */ - for (i=0; g_emi62_loader[i].type == 0; i++) { - err = emi62_writememory(dev, g_emi62_loader[i].address, g_emi62_loader[i].data, g_emi62_loader[i].length, ANCHOR_LOAD_INTERNAL); + while (rec) { + err = emi62_writememory(dev, be32_to_cpu(rec->addr), + rec->data, be16_to_cpu(rec->len), + ANCHOR_LOAD_INTERNAL); if (err < 0) { err("%s - error loading firmware: error = %d", __func__, err); goto wraperr; } + rec = ihex_next_binrec(rec); } /* De-assert reset (let the CPU run) */ @@ -132,15 +153,16 @@ static int emi62_load_firmware (struct usb_device *dev) /* 2. We upload the FPGA firmware into the EMI * Note: collect up to 1023 (yes!) bytes and send them with * a single request. This is _much_ faster! */ + rec = (const struct ihex_binrec *)bitstream_fw->data; do { i = 0; - addr = g_emi62bs[pos].address; + addr = be32_to_cpu(rec->addr); /* intel hex records are terminated with type 0 element */ - while ((g_emi62bs[pos].type == 0) && (i + g_emi62bs[pos].length < FW_LOAD_SIZE)) { - memcpy(buf + i, g_emi62bs[pos].data, g_emi62bs[pos].length); - i += g_emi62bs[pos].length; - pos++; + while (rec && (i + be16_to_cpu(rec->len) < FW_LOAD_SIZE)) { + memcpy(buf + i, rec->data, be16_to_cpu(rec->len)); + i += be16_to_cpu(rec->len); + rec = ihex_next_binrec(rec); } err = emi62_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA); if (err < 0) { @@ -157,8 +179,11 @@ static int emi62_load_firmware (struct usb_device *dev) } /* 3. We need to put the loader for the firmware into the EZ-USB (again...) */ - for (i=0; g_emi62_loader[i].type == 0; i++) { - err = emi62_writememory(dev, g_emi62_loader[i].address, g_emi62_loader[i].data, g_emi62_loader[i].length, ANCHOR_LOAD_INTERNAL); + for (rec = (const struct ihex_binrec *)loader_fw->data; + rec; rec = ihex_next_binrec(rec)) { + err = emi62_writememory(dev, be32_to_cpu(rec->addr), + rec->data, be16_to_cpu(rec->len), + ANCHOR_LOAD_INTERNAL); if (err < 0) { err("%s - error loading firmware: error = %d", __func__, err); goto wraperr; @@ -175,29 +200,19 @@ static int emi62_load_firmware (struct usb_device *dev) /* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */ -/* FIXME: quick and dirty ifdefs */ -#ifdef SPDIF - for (i=0; g_HexSpdifFw62[i].type == 0; i++) { - if (!INTERNAL_RAM(g_HexSpdifFw62[i].address)) { - err = emi62_writememory(dev, g_HexSpdifFw62[i].address, g_HexSpdifFw62[i].data, g_HexSpdifFw62[i].length, ANCHOR_LOAD_EXTERNAL); + for (rec = (const struct ihex_binrec *)firmware_fw->data; + rec; rec = ihex_next_binrec(rec)) { + if (!INTERNAL_RAM(be32_to_cpu(rec->addr))) { + err = emi62_writememory(dev, be32_to_cpu(rec->addr), + rec->data, be16_to_cpu(rec->len), + ANCHOR_LOAD_EXTERNAL); if (err < 0) { err("%s - error loading firmware: error = %d", __func__, err); goto wraperr; } } } -#else /* MIDI */ - for (i=0; g_HexMidiFw62[i].type == 0; i++) { - if (!INTERNAL_RAM(g_HexMidiFw62[i].address)) { - err = emi62_writememory(dev, g_HexMidiFw62[i].address, g_HexMidiFw62[i].data, g_HexMidiFw62[i].length, ANCHOR_LOAD_EXTERNAL); - if (err < 0) { - err("%s - error loading firmware: error = %d\n", __func__, err); - goto wraperr; - return err; - } - } - } -#endif + /* Assert reset (stop the CPU in the EMI) */ err = emi62_set_reset(dev,1); if (err < 0) { @@ -205,29 +220,19 @@ static int emi62_load_firmware (struct usb_device *dev) goto wraperr; } -/* FIXME: quick and dirty ifdefs */ -#ifdef SPDIF - for (i=0; g_HexSpdifFw62[i].type == 0; i++) { - if (INTERNAL_RAM(g_HexSpdifFw62[i].address)) { - err = emi62_writememory(dev, g_HexSpdifFw62[i].address, g_HexSpdifFw62[i].data, g_HexSpdifFw62[i].length, ANCHOR_LOAD_INTERNAL); + for (rec = (const struct ihex_binrec *)firmware_fw->data; + rec; rec = ihex_next_binrec(rec)) { + if (INTERNAL_RAM(be32_to_cpu(rec->addr))) { + err = emi62_writememory(dev, be32_to_cpu(rec->addr), + rec->data, be16_to_cpu(rec->len), + ANCHOR_LOAD_EXTERNAL); if (err < 0) { err("%s - error loading firmware: error = %d", __func__, err); goto wraperr; } } } -#else /* MIDI */ - for (i=0; g_HexMidiFw62[i].type == 0; i++) { - if (INTERNAL_RAM(g_HexMidiFw62[i].address)) { - err = emi62_writememory(dev, g_HexMidiFw62[i].address, g_HexMidiFw62[i].data, g_HexMidiFw62[i].length, ANCHOR_LOAD_INTERNAL); - if (err < 0) { - err("%s - error loading firmware: error = %d\n", __func__, err); - goto wraperr; - } - } - } -#endif - + /* De-assert reset (let the CPU run) */ err = emi62_set_reset(dev,0); if (err < 0) { @@ -236,6 +241,10 @@ static int emi62_load_firmware (struct usb_device *dev) } msleep(250); /* let device settle */ + release_firmware(loader_fw); + release_firmware(bitstream_fw); + release_firmware(firmware_fw); + kfree(buf); /* return 1 to fail the driver inialization @@ -243,6 +252,10 @@ static int emi62_load_firmware (struct usb_device *dev) return 1; wraperr: + release_firmware(loader_fw); + release_firmware(bitstream_fw); + release_firmware(firmware_fw); + kfree(buf); dev_err(&dev->dev, "Error\n"); return err; @@ -300,5 +313,8 @@ MODULE_AUTHOR("Tapio Laxström"); MODULE_DESCRIPTION("Emagic EMI 6|2m firmware loader."); MODULE_LICENSE("GPL"); +MODULE_FIRMWARE("emi62/loader.fw"); +MODULE_FIRMWARE("emi62/bitstream.fw"); +MODULE_FIRMWARE(FIRMWARE_FW); /* vi:ai:syntax=c:sw=8:ts=8:tw=80 */ |